technofab/zfs-localpv
1
0
Fork 0
mirror of https://github.com/TECHNOFAB11/zfs-localpv.git synced 2025-12-12 22:40:12 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

refact(deps): bump k8s and client-go deps to version v0.20.2 (#294)

Browse source 
Signed-off-by: prateekpandey14 <prateek.pandey@mayadata.io>
This commit is contained in:
Prateek Pandey 2021-03-31 16:43:42 +05:30 • committed by GitHub
parent 533e17a9aa
commit b1aa6ab51a
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2196 changed files with 306727 additions and 251810 deletions
Download patch file Download diff file Expand all files Collapse all files

83
vendor/k8s.io/apimachinery/pkg/util/cache/cache.go generated vendored
View file

@ -1,83 +0,0 @@
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cache
import (
"sync"
)
const (
shardsCount int = 32
)
type Cache []*cacheShard
func NewCache(maxSize int) Cache {
if maxSize < shardsCount {
maxSize = shardsCount
}
cache := make(Cache, shardsCount)
for i := 0; i < shardsCount; i++ {
cache[i] = &cacheShard{
items: make(map[uint64]interface{}),
maxSize: maxSize / shardsCount,
}
}
return cache
}
func (c Cache) getShard(index uint64) *cacheShard {
return c[index%uint64(shardsCount)]
}
// Returns true if object already existed, false otherwise.
func (c *Cache) Add(index uint64, obj interface{}) bool {
return c.getShard(index).add(index, obj)
}
func (c *Cache) Get(index uint64) (obj interface{}, found bool) {
return c.getShard(index).get(index)
}
type cacheShard struct {
items map[uint64]interface{}
sync.RWMutex
maxSize int
}
// Returns true if object already existed, false otherwise.
func (s *cacheShard) add(index uint64, obj interface{}) bool {
s.Lock()
defer s.Unlock()
_, isOverwrite := s.items[index]
if !isOverwrite && len(s.items) >= s.maxSize {
var randomKey uint64
for randomKey = range s.items {
break
}
delete(s.items, randomKey)
}
s.items[index] = obj
return isOverwrite
}
func (s *cacheShard) get(index uint64) (obj interface{}, found bool) {
s.RLock()
defer s.RUnlock()
obj, found = s.items[index]
return
}

192
vendor/k8s.io/apimachinery/pkg/util/cache/expiring.go generated vendored Normal file
View file

@ -0,0 +1,192 @@
/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cache
import (
"container/heap"
"sync"
"time"
utilclock "k8s.io/apimachinery/pkg/util/clock"
)
// NewExpiring returns an initialized expiring cache.
func NewExpiring() *Expiring {
return NewExpiringWithClock(utilclock.RealClock{})
}
// NewExpiringWithClock is like NewExpiring but allows passing in a custom
// clock for testing.
func NewExpiringWithClock(clock utilclock.Clock) *Expiring {
return &Expiring{
clock: clock,
cache: make(map[interface{}]entry),
}
}
// Expiring is a map whose entries expire after a per-entry timeout.
type Expiring struct {
clock utilclock.Clock
// mu protects the below fields
mu sync.RWMutex
// cache is the internal map that backs the cache.
cache map[interface{}]entry
// generation is used as a cheap resource version for cache entries. Cleanups
// are scheduled with a key and generation. When the cleanup runs, it first
// compares its generation with the current generation of the entry. It
// deletes the entry iff the generation matches. This prevents cleanups
// scheduled for earlier versions of an entry from deleting later versions of
// an entry when Set() is called multiple times with the same key.
//
// The integer value of the generation of an entry is meaningless.
generation uint64
heap expiringHeap
}
type entry struct {
val interface{}
expiry time.Time
generation uint64
}
// Get looks up an entry in the cache.
func (c *Expiring) Get(key interface{}) (val interface{}, ok bool) {
c.mu.RLock()
defer c.mu.RUnlock()
e, ok := c.cache[key]
if !ok || !c.clock.Now().Before(e.expiry) {
return nil, false
}
return e.val, true
}
// Set sets a key/value/expiry entry in the map, overwriting any previous entry
// with the same key. The entry expires at the given expiry time, but its TTL
// may be lengthened or shortened by additional calls to Set(). Garbage
// collection of expired entries occurs during calls to Set(), however calls to
// Get() will not return expired entries that have not yet been garbage
// collected.
func (c *Expiring) Set(key interface{}, val interface{}, ttl time.Duration) {
now := c.clock.Now()
expiry := now.Add(ttl)
c.mu.Lock()
defer c.mu.Unlock()
c.generation++
c.cache[key] = entry{
val: val,
expiry: expiry,
generation: c.generation,
}
// Run GC inline before pushing the new entry.
c.gc(now)
heap.Push(&c.heap, &expiringHeapEntry{
key: key,
expiry: expiry,
generation: c.generation,
})
}
// Delete deletes an entry in the map.
func (c *Expiring) Delete(key interface{}) {
c.mu.Lock()
defer c.mu.Unlock()
c.del(key, 0)
}
// del deletes the entry for the given key. The generation argument is the
// generation of the entry that should be deleted. If the generation has been
// changed (e.g. if a set has occurred on an existing element but the old
// cleanup still runs), this is a noop. If the generation argument is 0, the
// entry's generation is ignored and the entry is deleted.
//
// del must be called under the write lock.
func (c *Expiring) del(key interface{}, generation uint64) {
e, ok := c.cache[key]
if !ok {
return
}
if generation != 0 && generation != e.generation {
return
}
delete(c.cache, key)
}
// Len returns the number of items in the cache.
func (c *Expiring) Len() int {
c.mu.RLock()
defer c.mu.RUnlock()
return len(c.cache)
}
func (c *Expiring) gc(now time.Time) {
for {
// Return from gc if the heap is empty or the next element is not yet
// expired.
//
// heap[0] is a peek at the next element in the heap, which is not obvious
// from looking at the (*expiringHeap).Pop() implementation below.
// heap.Pop() swaps the first entry with the last entry of the heap, then
// calls (*expiringHeap).Pop() which returns the last element.
if len(c.heap) == 0 || now.Before(c.heap[0].expiry) {
return
}
cleanup := heap.Pop(&c.heap).(*expiringHeapEntry)
c.del(cleanup.key, cleanup.generation)
}
}
type expiringHeapEntry struct {
key interface{}
expiry time.Time
generation uint64
}
// expiringHeap is a min-heap ordered by expiration time of its entries. The
// expiring cache uses this as a priority queue to efficiently organize entries
// which will be garbage collected once they expire.
type expiringHeap []*expiringHeapEntry
var _ heap.Interface = &expiringHeap{}
func (cq expiringHeap) Len() int {
return len(cq)
}
func (cq expiringHeap) Less(i, j int) bool {
return cq[i].expiry.Before(cq[j].expiry)
}
func (cq expiringHeap) Swap(i, j int) {
cq[i], cq[j] = cq[j], cq[i]
}
func (cq *expiringHeap) Push(c interface{}) {
*cq = append(*cq, c.(*expiringHeapEntry))
}
func (cq *expiringHeap) Pop() interface{} {
c := (*cq)[cq.Len()-1]
*cq = (*cq)[:cq.Len()-1]
return c
}

133
vendor/k8s.io/apimachinery/pkg/util/clock/clock.go generated vendored
View file

@ -21,11 +21,18 @@ import (
"time"
)
// PassiveClock allows for injecting fake or real clocks into code
// that needs to read the current time but does not support scheduling
// activity in the future.
type PassiveClock interface {
Now() time.Time
Since(time.Time) time.Duration
}
// Clock allows for injecting fake or real clocks into code that
// needs to do arbitrary things based on time.
type Clock interface {
Now() time.Time
Since(time.Time) time.Duration
PassiveClock
After(time.Duration) <-chan time.Time
NewTimer(time.Duration) Timer
Sleep(time.Duration)
@ -45,31 +52,39 @@ func (RealClock) Since(ts time.Time) time.Duration {
return time.Since(ts)
}
// Same as time.After(d).
// After is the same as time.After(d).
func (RealClock) After(d time.Duration) <-chan time.Time {
return time.After(d)
}
// NewTimer returns a new Timer.
func (RealClock) NewTimer(d time.Duration) Timer {
return &realTimer{
timer: time.NewTimer(d),
}
}
// NewTicker returns a new Ticker.
func (RealClock) NewTicker(d time.Duration) Ticker {
return &realTicker{
ticker: time.NewTicker(d),
}
}
// Sleep pauses the RealClock for duration d.
func (RealClock) Sleep(d time.Duration) {
time.Sleep(d)
}
// FakeClock implements Clock, but returns an arbitrary time.
type FakeClock struct {
// FakePassiveClock implements PassiveClock, but returns an arbitrary time.
type FakePassiveClock struct {
lock sync.RWMutex
time time.Time
}
// FakeClock implements Clock, but returns an arbitrary time.
type FakeClock struct {
FakePassiveClock
// waiters are waiting for the fake time to pass their specified time
waiters []fakeClockWaiter
@ -80,30 +95,44 @@ type fakeClockWaiter struct {
stepInterval time.Duration
skipIfBlocked bool
destChan chan time.Time
fired bool
}
func NewFakeClock(t time.Time) *FakeClock {
return &FakeClock{
// NewFakePassiveClock returns a new FakePassiveClock.
func NewFakePassiveClock(t time.Time) *FakePassiveClock {
return &FakePassiveClock{
time: t,
}
}
// NewFakeClock returns a new FakeClock
func NewFakeClock(t time.Time) *FakeClock {
return &FakeClock{
FakePassiveClock: *NewFakePassiveClock(t),
}
}
// Now returns f's time.
func (f *FakeClock) Now() time.Time {
func (f *FakePassiveClock) Now() time.Time {
f.lock.RLock()
defer f.lock.RUnlock()
return f.time
}
// Since returns time since the time in f.
func (f *FakeClock) Since(ts time.Time) time.Duration {
func (f *FakePassiveClock) Since(ts time.Time) time.Duration {
f.lock.RLock()
defer f.lock.RUnlock()
return f.time.Sub(ts)
}
// Fake version of time.After(d).
// SetTime sets the time on the FakePassiveClock.
func (f *FakePassiveClock) SetTime(t time.Time) {
f.lock.Lock()
defer f.lock.Unlock()
f.time = t
}
// After is the Fake version of time.After(d).
func (f *FakeClock) After(d time.Duration) <-chan time.Time {
f.lock.Lock()
defer f.lock.Unlock()
@ -116,7 +145,7 @@ func (f *FakeClock) After(d time.Duration) <-chan time.Time {
return ch
}
// Fake version of time.NewTimer(d).
// NewTimer is the Fake version of time.NewTimer(d).
func (f *FakeClock) NewTimer(d time.Duration) Timer {
f.lock.Lock()
defer f.lock.Unlock()
@ -133,6 +162,7 @@ func (f *FakeClock) NewTimer(d time.Duration) Timer {
return timer
}
// NewTicker returns a new Ticker.
func (f *FakeClock) NewTicker(d time.Duration) Ticker {
f.lock.Lock()
defer f.lock.Unlock()
@ -150,14 +180,14 @@ func (f *FakeClock) NewTicker(d time.Duration) Ticker {
}
}
// Move clock by Duration, notify anyone that's called After, Tick, or NewTimer
// Step moves clock by Duration, notifies anyone that's called After, Tick, or NewTimer
func (f *FakeClock) Step(d time.Duration) {
f.lock.Lock()
defer f.lock.Unlock()
f.setTimeLocked(f.time.Add(d))
}
// Sets the time.
// SetTime sets the time on a FakeClock.
func (f *FakeClock) SetTime(t time.Time) {
f.lock.Lock()
defer f.lock.Unlock()
@ -175,12 +205,10 @@ func (f *FakeClock) setTimeLocked(t time.Time) {
if w.skipIfBlocked {
select {
case w.destChan <- t:
w.fired = true
default:
}
} else {
w.destChan <- t
w.fired = true
}
if w.stepInterval > 0 {
@ -197,7 +225,7 @@ func (f *FakeClock) setTimeLocked(t time.Time) {
f.waiters = newWaiters
}
// Returns true if After has been called on f but not yet satisfied (so you can
// HasWaiters returns true if After has been called on f but not yet satisfied (so you can
// write race-free tests).
func (f *FakeClock) HasWaiters() bool {
f.lock.RLock()
@ -205,6 +233,7 @@ func (f *FakeClock) HasWaiters() bool {
return len(f.waiters) > 0
}
// Sleep pauses the FakeClock for duration d.
func (f *FakeClock) Sleep(d time.Duration) {
f.Step(d)
}
@ -226,24 +255,25 @@ func (i *IntervalClock) Since(ts time.Time) time.Duration {
return i.Time.Sub(ts)
}
// Unimplemented, will panic.
// After is currently unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) After(d time.Duration) <-chan time.Time {
panic("IntervalClock doesn't implement After")
}
// Unimplemented, will panic.
// NewTimer is currently unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) NewTimer(d time.Duration) Timer {
panic("IntervalClock doesn't implement NewTimer")
}
// Unimplemented, will panic.
// NewTicker is currently unimplemented, will panic.
// TODO: make interval clock use FakeClock so this can be implemented.
func (*IntervalClock) NewTicker(d time.Duration) Ticker {
panic("IntervalClock doesn't implement NewTicker")
}
// Sleep is currently unimplemented; will panic.
func (*IntervalClock) Sleep(d time.Duration) {
panic("IntervalClock doesn't implement Sleep")
}
@ -287,38 +317,67 @@ func (f *fakeTimer) C() <-chan time.Time {
return f.waiter.destChan
}
// Stop stops the timer and returns true if the timer has not yet fired, or false otherwise.
// Stop conditionally stops the timer. If the timer has neither fired
// nor been stopped then this call stops the timer and returns true,
// otherwise this call returns false. This is like time.Timer::Stop.
func (f *fakeTimer) Stop() bool {
f.fakeClock.lock.Lock()
defer f.fakeClock.lock.Unlock()
newWaiters := make([]fakeClockWaiter, 0, len(f.fakeClock.waiters))
for i := range f.fakeClock.waiters {
w := &f.fakeClock.waiters[i]
if w != &f.waiter {
newWaiters = append(newWaiters, *w)
// The timer has already fired or been stopped, unless it is found
// among the clock's waiters.
stopped := false
oldWaiters := f.fakeClock.waiters
newWaiters := make([]fakeClockWaiter, 0, len(oldWaiters))
seekChan := f.waiter.destChan
for i := range oldWaiters {
// Identify the timer's fakeClockWaiter by the identity of the
// destination channel, nothing else is necessarily unique and
// constant since the timer's creation.
if oldWaiters[i].destChan == seekChan {
stopped = true
} else {
newWaiters = append(newWaiters, oldWaiters[i])
}
}
f.fakeClock.waiters = newWaiters
return !f.waiter.fired
return stopped
}
// Reset resets the timer to the fake clock's "now" + d. It returns true if the timer has not yet
// fired, or false otherwise.
// Reset conditionally updates the firing time of the timer. If the
// timer has neither fired nor been stopped then this call resets the
// timer to the fake clock's "now" + d and returns true, otherwise
// it creates a new waiter, adds it to the clock, and returns true.
//
// It is not possible to return false, because a fake timer can be reset
// from any state (waiting to fire, already fired, and stopped).
//
// See the GoDoc for time.Timer::Reset for more context on why
// the return value of Reset() is not useful.
func (f *fakeTimer) Reset(d time.Duration) bool {
f.fakeClock.lock.Lock()
defer f.fakeClock.lock.Unlock()
active := !f.waiter.fired
f.waiter.fired = false
f.waiter.targetTime = f.fakeClock.time.Add(d)
return active
waiters := f.fakeClock.waiters
seekChan := f.waiter.destChan
for i := range waiters {
if waiters[i].destChan == seekChan {
waiters[i].targetTime = f.fakeClock.time.Add(d)
return true
}
}
// No existing waiter, timer has already fired or been reset.
// We should still enable Reset() to succeed by creating a
// new waiter and adding it to the clock's waiters.
newWaiter := fakeClockWaiter{
targetTime: f.fakeClock.time.Add(d),
destChan: seekChan,
}
f.fakeClock.waiters = append(f.fakeClock.waiters, newWaiter)
return true
}
// Ticker defines the Ticker interface
type Ticker interface {
C() <-chan time.Time
Stop()

39
vendor/k8s.io/apimachinery/pkg/util/diff/diff.go generated vendored
View file

@ -19,6 +19,7 @@ package diff
import (
"bytes"
"fmt"
"reflect"
"strings"
"text/tabwriter"
@ -116,3 +117,41 @@ func ObjectGoPrintSideBySide(a, b interface{}) string {
w.Flush()
return buf.String()
}
// IgnoreUnset is an option that ignores fields that are unset on the right
// hand side of a comparison. This is useful in testing to assert that an
// object is a derivative.
func IgnoreUnset() cmp.Option {
return cmp.Options{
// ignore unset fields in v2
cmp.FilterPath(func(path cmp.Path) bool {
_, v2 := path.Last().Values()
switch v2.Kind() {
case reflect.Slice, reflect.Map:
if v2.IsNil() || v2.Len() == 0 {
return true
}
case reflect.String:
if v2.Len() == 0 {
return true
}
case reflect.Interface, reflect.Ptr:
if v2.IsNil() {
return true
}
}
return false
}, cmp.Ignore()),
// ignore map entries that aren't set in v2
cmp.FilterPath(func(path cmp.Path) bool {
switch i := path.Last().(type) {
case cmp.MapIndex:
if _, v2 := i.Values(); !v2.IsValid() {
fmt.Println("E")
return true
}
}
return false
}, cmp.Ignore()),
}
}

34
vendor/k8s.io/apimachinery/pkg/util/errors/errors.go generated vendored
View file

@ -28,9 +28,14 @@ type MessageCountMap map[string]int
// Aggregate represents an object that contains multiple errors, but does not
// necessarily have singular semantic meaning.
// The aggregate can be used with `errors.Is()` to check for the occurrence of
// a specific error type.
// Errors.As() is not supported, because the caller presumably cares about a
// specific error of potentially multiple that match the given type.
type Aggregate interface {
error
Errors() []error
Is(error) bool
}
// NewAggregate converts a slice of errors into an Aggregate interface, which
@ -71,16 +76,17 @@ func (agg aggregate) Error() string {
}
seenerrs := sets.NewString()
result := ""
agg.visit(func(err error) {
agg.visit(func(err error) bool {
msg := err.Error()
if seenerrs.Has(msg) {
return
return false
}
seenerrs.Insert(msg)
if len(seenerrs) > 1 {
result += ", "
}
result += msg
return false
})
if len(seenerrs) == 1 {
return result
@ -88,19 +94,33 @@ func (agg aggregate) Error() string {
return "[" + result + "]"
}
func (agg aggregate) visit(f func(err error)) {
func (agg aggregate) Is(target error) bool {
return agg.visit(func(err error) bool {
return errors.Is(err, target)
})
}
func (agg aggregate) visit(f func(err error) bool) bool {
for _, err := range agg {
switch err := err.(type) {
case aggregate:
err.visit(f)
if match := err.visit(f); match {
return match
}
case Aggregate:
for _, nestedErr := range err.Errors() {
f(nestedErr)
if match := f(nestedErr); match {
return match
}
}
default:
f(err)
if match := f(err); match {
return match
}
}
}
return false
}
// Errors is part of the Aggregate interface.
@ -143,7 +163,7 @@ func matchesError(err error, fns ...Matcher) bool {
// filterErrors returns any errors (or nested errors, if the list contains
// nested Errors) for which all fns return false. If no errors
// remain a nil list is returned. The resulting silec will have all
// remain a nil list is returned. The resulting slice will have all
// nested slices flattened as a side effect.
func filterErrors(list []error, fns ...Matcher) []error {
result := []error{}

3
vendor/k8s.io/apimachinery/pkg/util/framer/framer.go generated vendored
View file

@ -132,12 +132,14 @@ func (r *jsonFrameReader) Read(data []byte) (int, error) {
// Return whatever remaining data exists from an in progress frame
if n := len(r.remaining); n > 0 {
if n <= len(data) {
//lint:ignore SA4006,SA4010 underlying array of data is modified here.
data = append(data[0:0], r.remaining...)
r.remaining = nil
return n, nil
}
n = len(data)
//lint:ignore SA4006,SA4010 underlying array of data is modified here.
data = append(data[0:0], r.remaining[:n]...)
r.remaining = r.remaining[n:]
return n, io.ErrShortBuffer
@ -155,6 +157,7 @@ func (r *jsonFrameReader) Read(data []byte) (int, error) {
// and set m to it, which means we need to copy the partial result back into data and preserve
// the remaining result for subsequent reads.
if len(m) > n {
//lint:ignore SA4006,SA4010 underlying array of data is modified here.
data = append(data[0:0], m[:n]...)
r.remaining = m[n:]
return n, io.ErrShortBuffer

22
vendor/k8s.io/apimachinery/pkg/util/httpstream/httpstream.go generated vendored
View file

@ -114,6 +114,18 @@ func negotiateProtocol(clientProtocols, serverProtocols []string) string {
return ""
}
func commaSeparatedHeaderValues(header []string) []string {
var parsedClientProtocols []string
for i := range header {
for _, clientProtocol := range strings.Split(header[i], ",") {
if proto := strings.Trim(clientProtocol, " "); len(proto) > 0 {
parsedClientProtocols = append(parsedClientProtocols, proto)
}
}
}
return parsedClientProtocols
}
// Handshake performs a subprotocol negotiation. If the client did request a
// subprotocol, Handshake will select the first common value found in
// serverProtocols. If a match is found, Handshake adds a response header
@ -121,17 +133,13 @@ func negotiateProtocol(clientProtocols, serverProtocols []string) string {
// returned, along with a response header containing the list of protocols the
// server can accept.
func Handshake(req *http.Request, w http.ResponseWriter, serverProtocols []string) (string, error) {
clientProtocols := req.Header[http.CanonicalHeaderKey(HeaderProtocolVersion)]
clientProtocols := commaSeparatedHeaderValues(req.Header[http.CanonicalHeaderKey(HeaderProtocolVersion)])
if len(clientProtocols) == 0 {
// Kube 1.0 clients didn't support subprotocol negotiation.
// TODO require clientProtocols once Kube 1.0 is no longer supported
return "", nil
return "", fmt.Errorf("unable to upgrade: %s is required", HeaderProtocolVersion)
}
if len(serverProtocols) == 0 {
// Kube 1.0 servers didn't support subprotocol negotiation. This is mainly for testing.
// TODO require serverProtocols once Kube 1.0 is no longer supported
return "", nil
panic(fmt.Errorf("unable to upgrade: serverProtocols is required"))
}
negotiatedProtocol := negotiateProtocol(clientProtocols, serverProtocols)

52
vendor/k8s.io/apimachinery/pkg/util/httpstream/spdy/connection.go generated vendored
View file

@ -24,7 +24,7 @@ import (
"github.com/docker/spdystream"
"k8s.io/apimachinery/pkg/util/httpstream"
"k8s.io/klog"
"k8s.io/klog/v2"
)
// connection maintains state about a spdystream.Connection and its associated
@ -34,38 +34,62 @@ type connection struct {
streams []httpstream.Stream
streamLock sync.Mutex
newStreamHandler httpstream.NewStreamHandler
ping func() (time.Duration, error)
}
// NewClientConnection creates a new SPDY client connection.
func NewClientConnection(conn net.Conn) (httpstream.Connection, error) {
return NewClientConnectionWithPings(conn, 0)
}
// NewClientConnectionWithPings creates a new SPDY client connection.
//
// If pingPeriod is non-zero, a background goroutine will send periodic Ping
// frames to the server. Use this to keep idle connections through certain load
// balancers alive longer.
func NewClientConnectionWithPings(conn net.Conn, pingPeriod time.Duration) (httpstream.Connection, error) {
spdyConn, err := spdystream.NewConnection(conn, false)
if err != nil {
defer conn.Close()
return nil, err
}
return newConnection(spdyConn, httpstream.NoOpNewStreamHandler), nil
return newConnection(spdyConn, httpstream.NoOpNewStreamHandler, pingPeriod, spdyConn.Ping), nil
}
// NewServerConnection creates a new SPDY server connection. newStreamHandler
// will be invoked when the server receives a newly created stream from the
// client.
func NewServerConnection(conn net.Conn, newStreamHandler httpstream.NewStreamHandler) (httpstream.Connection, error) {
return NewServerConnectionWithPings(conn, newStreamHandler, 0)
}
// NewServerConnectionWithPings creates a new SPDY server connection.
// newStreamHandler will be invoked when the server receives a newly created
// stream from the client.
//
// If pingPeriod is non-zero, a background goroutine will send periodic Ping
// frames to the server. Use this to keep idle connections through certain load
// balancers alive longer.
func NewServerConnectionWithPings(conn net.Conn, newStreamHandler httpstream.NewStreamHandler, pingPeriod time.Duration) (httpstream.Connection, error) {
spdyConn, err := spdystream.NewConnection(conn, true)
if err != nil {
defer conn.Close()
return nil, err
}
return newConnection(spdyConn, newStreamHandler), nil
return newConnection(spdyConn, newStreamHandler, pingPeriod, spdyConn.Ping), nil
}
// newConnection returns a new connection wrapping conn. newStreamHandler
// will be invoked when the server receives a newly created stream from the
// client.
func newConnection(conn *spdystream.Connection, newStreamHandler httpstream.NewStreamHandler) httpstream.Connection {
c := &connection{conn: conn, newStreamHandler: newStreamHandler}
func newConnection(conn *spdystream.Connection, newStreamHandler httpstream.NewStreamHandler, pingPeriod time.Duration, pingFn func() (time.Duration, error)) httpstream.Connection {
c := &connection{conn: conn, newStreamHandler: newStreamHandler, ping: pingFn}
go conn.Serve(c.newSpdyStream)
if pingPeriod > 0 && pingFn != nil {
go c.sendPings(pingPeriod)
}
return c
}
@ -143,3 +167,21 @@ func (c *connection) newSpdyStream(stream *spdystream.Stream) {
func (c *connection) SetIdleTimeout(timeout time.Duration) {
c.conn.SetIdleTimeout(timeout)
}
func (c *connection) sendPings(period time.Duration) {
t := time.NewTicker(period)
defer t.Stop()
for {
select {
case <-c.conn.CloseChan():
return
case <-t.C:
}
if _, err := c.ping(); err != nil {
klog.V(3).Infof("SPDY Ping failed: %v", err)
// Continue, in case this is a transient failure.
// c.conn.CloseChan above will tell us when the connection is
// actually closed.
}
}
}

68
vendor/k8s.io/apimachinery/pkg/util/httpstream/spdy/roundtripper.go generated vendored
View file

@ -30,6 +30,7 @@ import (
"net/http/httputil"
"net/url"
"strings"
"time"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@ -70,26 +71,63 @@ type SpdyRoundTripper struct {
// requireSameHostRedirects restricts redirect following to only follow redirects to the same host
// as the original request.
requireSameHostRedirects bool
// pingPeriod is a period for sending Ping frames over established
// connections.
pingPeriod time.Duration
}
var _ utilnet.TLSClientConfigHolder = &SpdyRoundTripper{}
var _ httpstream.UpgradeRoundTripper = &SpdyRoundTripper{}
var _ utilnet.Dialer = &SpdyRoundTripper{}
// NewRoundTripper creates a new SpdyRoundTripper that will use
// the specified tlsConfig.
func NewRoundTripper(tlsConfig *tls.Config, followRedirects, requireSameHostRedirects bool) httpstream.UpgradeRoundTripper {
return NewSpdyRoundTripper(tlsConfig, followRedirects, requireSameHostRedirects)
// NewRoundTripper creates a new SpdyRoundTripper that will use the specified
// tlsConfig.
func NewRoundTripper(tlsConfig *tls.Config, followRedirects, requireSameHostRedirects bool) *SpdyRoundTripper {
return NewRoundTripperWithConfig(RoundTripperConfig{
TLS: tlsConfig,
FollowRedirects: followRedirects,
RequireSameHostRedirects: requireSameHostRedirects,
})
}
// NewSpdyRoundTripper creates a new SpdyRoundTripper that will use
// the specified tlsConfig. This function is mostly meant for unit tests.
func NewSpdyRoundTripper(tlsConfig *tls.Config, followRedirects, requireSameHostRedirects bool) *SpdyRoundTripper {
return &SpdyRoundTripper{
tlsConfig: tlsConfig,
followRedirects: followRedirects,
requireSameHostRedirects: requireSameHostRedirects,
// NewRoundTripperWithProxy creates a new SpdyRoundTripper that will use the
// specified tlsConfig and proxy func.
func NewRoundTripperWithProxy(tlsConfig *tls.Config, followRedirects, requireSameHostRedirects bool, proxier func(*http.Request) (*url.URL, error)) *SpdyRoundTripper {
return NewRoundTripperWithConfig(RoundTripperConfig{
TLS: tlsConfig,
FollowRedirects: followRedirects,
RequireSameHostRedirects: requireSameHostRedirects,
Proxier: proxier,
})
}
// NewRoundTripperWithProxy creates a new SpdyRoundTripper with the specified
// configuration.
func NewRoundTripperWithConfig(cfg RoundTripperConfig) *SpdyRoundTripper {
if cfg.Proxier == nil {
cfg.Proxier = utilnet.NewProxierWithNoProxyCIDR(http.ProxyFromEnvironment)
}
return &SpdyRoundTripper{
tlsConfig: cfg.TLS,
followRedirects: cfg.FollowRedirects,
requireSameHostRedirects: cfg.RequireSameHostRedirects,
proxier: cfg.Proxier,
pingPeriod: cfg.PingPeriod,
}
}
// RoundTripperConfig is a set of options for an SpdyRoundTripper.
type RoundTripperConfig struct {
// TLS configuration used by the round tripper.
TLS *tls.Config
// Proxier is a proxy function invoked on each request. Optional.
Proxier func(*http.Request) (*url.URL, error)
// PingPeriod is a period for sending SPDY Pings on the connection.
// Optional.
PingPeriod time.Duration
FollowRedirects bool
RequireSameHostRedirects bool
}
// TLSClientConfig implements pkg/util/net.TLSClientConfigHolder for proper TLS checking during
@ -116,11 +154,7 @@ func (s *SpdyRoundTripper) Dial(req *http.Request) (net.Conn, error) {
// dial dials the host specified by req, using TLS if appropriate, optionally
// using a proxy server if one is configured via environment variables.
func (s *SpdyRoundTripper) dial(req *http.Request) (net.Conn, error) {
proxier := s.proxier
if proxier == nil {
proxier = utilnet.NewProxierWithNoProxyCIDR(http.ProxyFromEnvironment)
}
proxyURL, err := proxier(req)
proxyURL, err := s.proxier(req)
if err != nil {
return nil, err
}
@ -319,7 +353,7 @@ func (s *SpdyRoundTripper) NewConnection(resp *http.Response) (httpstream.Connec
return nil, fmt.Errorf("unable to upgrade connection: %s", responseError)
}
return NewClientConnection(s.conn)
return NewClientConnectionWithPings(s.conn, s.pingPeriod)
}
// statusScheme is private scheme for the decoding here until someone fixes the TODO in NewConnection

17
vendor/k8s.io/apimachinery/pkg/util/httpstream/spdy/upgrade.go generated vendored
View file

@ -24,6 +24,7 @@ import (
"net/http"
"strings"
"sync/atomic"
"time"
"k8s.io/apimachinery/pkg/util/httpstream"
"k8s.io/apimachinery/pkg/util/runtime"
@ -34,6 +35,7 @@ const HeaderSpdy31 = "SPDY/3.1"
// responseUpgrader knows how to upgrade HTTP responses. It
// implements the httpstream.ResponseUpgrader interface.
type responseUpgrader struct {
pingPeriod time.Duration
}
// connWrapper is used to wrap a hijacked connection and its bufio.Reader. All
@ -64,7 +66,18 @@ func (w *connWrapper) Close() error {
// capable of upgrading HTTP responses using SPDY/3.1 via the
// spdystream package.
func NewResponseUpgrader() httpstream.ResponseUpgrader {
return responseUpgrader{}
return NewResponseUpgraderWithPings(0)
}
// NewResponseUpgraderWithPings returns a new httpstream.ResponseUpgrader that
// is capable of upgrading HTTP responses using SPDY/3.1 via the spdystream
// package.
//
// If pingPeriod is non-zero, for each incoming connection a background
// goroutine will send periodic Ping frames to the server. Use this to keep
// idle connections through certain load balancers alive longer.
func NewResponseUpgraderWithPings(pingPeriod time.Duration) httpstream.ResponseUpgrader {
return responseUpgrader{pingPeriod: pingPeriod}
}
// UpgradeResponse upgrades an HTTP response to one that supports multiplexed
@ -97,7 +110,7 @@ func (u responseUpgrader) UpgradeResponse(w http.ResponseWriter, req *http.Reque
}
connWithBuf := &connWrapper{Conn: conn, bufReader: bufrw.Reader}
spdyConn, err := NewServerConnection(connWithBuf, newStreamHandler)
spdyConn, err := NewServerConnectionWithPings(connWithBuf, newStreamHandler, u.pingPeriod)
if err != nil {
runtime.HandleError(fmt.Errorf("unable to upgrade: error creating SPDY server connection: %v", err))
return nil

218
vendor/k8s.io/apimachinery/pkg/util/intstr/generated.pb.go generated vendored
View file

@ -17,25 +17,16 @@ limitations under the License.
// Code generated by protoc-gen-gogo. DO NOT EDIT.
// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto
/*
Package intstr is a generated protocol buffer package.
It is generated from these files:
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto
It has these top-level messages:
IntOrString
*/
package intstr
import (
fmt "fmt"
proto "github.com/gogo/protobuf/proto"
math "math"
io "io"
math "math"
math_bits "math/bits"
proto "github.com/gogo/protobuf/proto"
)
// Reference imports to suppress errors if they are not otherwise used.
@ -47,19 +38,71 @@ var _ = math.Inf
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
func (m *IntOrString) Reset() { *m = IntOrString{} }
func (*IntOrString) ProtoMessage() {}
func (*IntOrString) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{0} }
func (m *IntOrString) Reset() { *m = IntOrString{} }
func (*IntOrString) ProtoMessage() {}
func (*IntOrString) Descriptor() ([]byte, []int) {
return fileDescriptor_94e046ae3ce6121c, []int{0}
}
func (m *IntOrString) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
}
func (m *IntOrString) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
b = b[:cap(b)]
n, err := m.MarshalToSizedBuffer(b)
if err != nil {
return nil, err
}
return b[:n], nil
}
func (m *IntOrString) XXX_Merge(src proto.Message) {
xxx_messageInfo_IntOrString.Merge(m, src)
}
func (m *IntOrString) XXX_Size() int {
return m.Size()
}
func (m *IntOrString) XXX_DiscardUnknown() {
xxx_messageInfo_IntOrString.DiscardUnknown(m)
}
var xxx_messageInfo_IntOrString proto.InternalMessageInfo
func init() {
proto.RegisterType((*IntOrString)(nil), "k8s.io.apimachinery.pkg.util.intstr.IntOrString")
}
func init() {
proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto", fileDescriptor_94e046ae3ce6121c)
}
var fileDescriptor_94e046ae3ce6121c = []byte{
// 292 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x4c, 0x8f, 0x31, 0x4b, 0x33, 0x31,
0x1c, 0xc6, 0x93, 0xb7, 0x7d, 0x8b, 0x9e, 0xe0, 0x50, 0x1c, 0x8a, 0x43, 0x7a, 0x28, 0xc8, 0x0d,
0x9a, 0xac, 0xe2, 0xd8, 0xad, 0x20, 0x08, 0x57, 0x71, 0x70, 0xbb, 0x6b, 0x63, 0x1a, 0xae, 0x4d,
0x42, 0xee, 0x7f, 0xc2, 0x6d, 0xfd, 0x08, 0xba, 0x39, 0xfa, 0x71, 0x6e, 0xec, 0xd8, 0x41, 0x8a,
0x17, 0xbf, 0x85, 0x93, 0x5c, 0xee, 0x40, 0xa7, 0xe4, 0x79, 0x9e, 0xdf, 0x2f, 0x90, 0xe0, 0x36,
0xbb, 0xce, 0xa9, 0xd4, 0x2c, 0x2b, 0x52, 0x6e, 0x15, 0x07, 0x9e, 0xb3, 0x67, 0xae, 0x16, 0xda,
0xb2, 0x6e, 0x48, 0x8c, 0x5c, 0x27, 0xf3, 0xa5, 0x54, 0xdc, 0x96, 0xcc, 0x64, 0x82, 0x15, 0x20,
0x57, 0x4c, 0x2a, 0xc8, 0xc1, 0x32, 0xc1, 0x15, 0xb7, 0x09, 0xf0, 0x05, 0x35, 0x56, 0x83, 0x1e,
0x9e, 0xb7, 0x12, 0xfd, 0x2b, 0x51, 0x93, 0x09, 0xda, 0x48, 0xb4, 0x95, 0x4e, 0xaf, 0x84, 0x84,
0x65, 0x91, 0xd2, 0xb9, 0x5e, 0x33, 0xa1, 0x85, 0x66, 0xde, 0x4d, 0x8b, 0x27, 0x9f, 0x7c, 0xf0,
0xb7, 0xf6, 0xcd, 0xb3, 0x57, 0x1c, 0x1c, 0x4d, 0x15, 0xdc, 0xd9, 0x19, 0x58, 0xa9, 0xc4, 0x30,
0x0a, 0xfa, 0x50, 0x1a, 0x3e, 0xc2, 0x21, 0x8e, 0x7a, 0x93, 0x93, 0x6a, 0x3f, 0x46, 0x6e, 0x3f,
0xee, 0xdf, 0x97, 0x86, 0x7f, 0x77, 0x67, 0xec, 0x89, 0xe1, 0x45, 0x30, 0x90, 0x0a, 0x1e, 0x92,
0xd5, 0xe8, 0x5f, 0x88, 0xa3, 0xff, 0x93, 0xe3, 0x8e, 0x1d, 0x4c, 0x7d, 0x1b, 0x77, 0x6b, 0xc3,
0xe5, 0x60, 0x1b, 0xae, 0x17, 0xe2, 0xe8, 0xf0, 0x97, 0x9b, 0xf9, 0x36, 0xee, 0xd6, 0x9b, 0x83,
0xb7, 0xf7, 0x31, 0xda, 0x7c, 0x84, 0x68, 0x72, 0x59, 0xd5, 0x04, 0x6d, 0x6b, 0x82, 0x76, 0x35,
0x41, 0x1b, 0x47, 0x70, 0xe5, 0x08, 0xde, 0x3a, 0x82, 0x77, 0x8e, 0xe0, 0x4f, 0x47, 0xf0, 0xcb,
0x17, 0x41, 0x8f, 0x83, 0xf6, 0xc3, 0x3f, 0x01, 0x00, 0x00, 0xff, 0xff, 0x52, 0xa0, 0xb5, 0xc9,
0x64, 0x01, 0x00, 0x00,
}
func (m *IntOrString) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
n, err := m.MarshalTo(dAtA)
n, err := m.MarshalToSizedBuffer(dAtA[:size])
if err != nil {
return nil, err
}
@ -67,33 +110,44 @@ func (m *IntOrString) Marshal() (dAtA []byte, err error) {
}
func (m *IntOrString) MarshalTo(dAtA []byte) (int, error) {
var i int
size := m.Size()
return m.MarshalToSizedBuffer(dAtA[:size])
}
func (m *IntOrString) MarshalToSizedBuffer(dAtA []byte) (int, error) {
i := len(dAtA)
_ = i
var l int
_ = l
dAtA[i] = 0x8
i++
i = encodeVarintGenerated(dAtA, i, uint64(m.Type))
dAtA[i] = 0x10
i++
i = encodeVarintGenerated(dAtA, i, uint64(m.IntVal))
dAtA[i] = 0x1a
i++
i -= len(m.StrVal)
copy(dAtA[i:], m.StrVal)
i = encodeVarintGenerated(dAtA, i, uint64(len(m.StrVal)))
i += copy(dAtA[i:], m.StrVal)
return i, nil
i--
dAtA[i] = 0x1a
i = encodeVarintGenerated(dAtA, i, uint64(m.IntVal))
i--
dAtA[i] = 0x10
i = encodeVarintGenerated(dAtA, i, uint64(m.Type))
i--
dAtA[i] = 0x8
return len(dAtA) - i, nil
}
func encodeVarintGenerated(dAtA []byte, offset int, v uint64) int {
offset -= sovGenerated(v)
base := offset
for v >= 1<<7 {
dAtA[offset] = uint8(v&0x7f | 0x80)
v >>= 7
offset++
}
dAtA[offset] = uint8(v)
return offset + 1
return base
}
func (m *IntOrString) Size() (n int) {
if m == nil {
return 0
}
var l int
_ = l
n += 1 + sovGenerated(uint64(m.Type))
@ -104,14 +158,7 @@ func (m *IntOrString) Size() (n int) {
}
func sovGenerated(x uint64) (n int) {
for {
n++
x >>= 7
if x == 0 {
break
}
}
return n
return (math_bits.Len64(x|1) + 6) / 7
}
func sozGenerated(x uint64) (n int) {
return sovGenerated(uint64((x << 1) ^ uint64((int64(x) >> 63))))
@ -131,7 +178,7 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
}
b := dAtA[iNdEx]
iNdEx++
wire |= (uint64(b) & 0x7F) << shift
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
@ -159,7 +206,7 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
}
b := dAtA[iNdEx]
iNdEx++
m.Type |= (Type(b) & 0x7F) << shift
m.Type |= Type(b&0x7F) << shift
if b < 0x80 {
break
}
@ -178,7 +225,7 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
}
b := dAtA[iNdEx]
iNdEx++
m.IntVal |= (int32(b) & 0x7F) << shift
m.IntVal |= int32(b&0x7F) << shift
if b < 0x80 {
break
}
@ -197,7 +244,7 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= (uint64(b) & 0x7F) << shift
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
@ -207,6 +254,9 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
return ErrInvalidLengthGenerated
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthGenerated
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
@ -221,6 +271,9 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
if skippy < 0 {
return ErrInvalidLengthGenerated
}
if (iNdEx + skippy) < 0 {
return ErrInvalidLengthGenerated
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
@ -236,6 +289,7 @@ func (m *IntOrString) Unmarshal(dAtA []byte) error {
func skipGenerated(dAtA []byte) (n int, err error) {
l := len(dAtA)
iNdEx := 0
depth := 0
for iNdEx < l {
var wire uint64
for shift := uint(0); ; shift += 7 {
@ -267,10 +321,8 @@ func skipGenerated(dAtA []byte) (n int, err error) {
break
}
}
return iNdEx, nil
case 1:
iNdEx += 8
return iNdEx, nil
case 2:
var length int
for shift := uint(0); ; shift += 7 {
@ -287,80 +339,34 @@ func skipGenerated(dAtA []byte) (n int, err error) {
break
}
}
iNdEx += length
if length < 0 {
return 0, ErrInvalidLengthGenerated
}
return iNdEx, nil
iNdEx += length
case 3:
for {
var innerWire uint64
var start int = iNdEx
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return 0, ErrIntOverflowGenerated
}
if iNdEx >= l {
return 0, io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
innerWire |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
innerWireType := int(innerWire & 0x7)
if innerWireType == 4 {
break
}
next, err := skipGenerated(dAtA[start:])
if err != nil {
return 0, err
}
iNdEx = start + next
}
return iNdEx, nil
depth++
case 4:
return iNdEx, nil
if depth == 0 {
return 0, ErrUnexpectedEndOfGroupGenerated
}
depth--
case 5:
iNdEx += 4
return iNdEx, nil
default:
return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
}
if iNdEx < 0 {
return 0, ErrInvalidLengthGenerated
}
if depth == 0 {
return iNdEx, nil
}
}
panic("unreachable")
return 0, io.ErrUnexpectedEOF
}
var (
ErrInvalidLengthGenerated = fmt.Errorf("proto: negative length found during unmarshaling")
ErrIntOverflowGenerated = fmt.Errorf("proto: integer overflow")
ErrInvalidLengthGenerated = fmt.Errorf("proto: negative length found during unmarshaling")
ErrIntOverflowGenerated = fmt.Errorf("proto: integer overflow")
ErrUnexpectedEndOfGroupGenerated = fmt.Errorf("proto: unexpected end of group")
)
func init() {
proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto", fileDescriptorGenerated)
}
var fileDescriptorGenerated = []byte{
// 292 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x4c, 0x8f, 0x31, 0x4b, 0x33, 0x31,
0x1c, 0xc6, 0x93, 0xb7, 0x7d, 0x8b, 0x9e, 0xe0, 0x50, 0x1c, 0x8a, 0x43, 0x7a, 0x28, 0xc8, 0x0d,
0x9a, 0xac, 0xe2, 0xd8, 0xad, 0x20, 0x08, 0x57, 0x71, 0x70, 0xbb, 0x6b, 0x63, 0x1a, 0xae, 0x4d,
0x42, 0xee, 0x7f, 0xc2, 0x6d, 0xfd, 0x08, 0xba, 0x39, 0xfa, 0x71, 0x6e, 0xec, 0xd8, 0x41, 0x8a,
0x17, 0xbf, 0x85, 0x93, 0x5c, 0xee, 0x40, 0xa7, 0xe4, 0x79, 0x9e, 0xdf, 0x2f, 0x90, 0xe0, 0x36,
0xbb, 0xce, 0xa9, 0xd4, 0x2c, 0x2b, 0x52, 0x6e, 0x15, 0x07, 0x9e, 0xb3, 0x67, 0xae, 0x16, 0xda,
0xb2, 0x6e, 0x48, 0x8c, 0x5c, 0x27, 0xf3, 0xa5, 0x54, 0xdc, 0x96, 0xcc, 0x64, 0x82, 0x15, 0x20,
0x57, 0x4c, 0x2a, 0xc8, 0xc1, 0x32, 0xc1, 0x15, 0xb7, 0x09, 0xf0, 0x05, 0x35, 0x56, 0x83, 0x1e,
0x9e, 0xb7, 0x12, 0xfd, 0x2b, 0x51, 0x93, 0x09, 0xda, 0x48, 0xb4, 0x95, 0x4e, 0xaf, 0x84, 0x84,
0x65, 0x91, 0xd2, 0xb9, 0x5e, 0x33, 0xa1, 0x85, 0x66, 0xde, 0x4d, 0x8b, 0x27, 0x9f, 0x7c, 0xf0,
0xb7, 0xf6, 0xcd, 0xb3, 0x57, 0x1c, 0x1c, 0x4d, 0x15, 0xdc, 0xd9, 0x19, 0x58, 0xa9, 0xc4, 0x30,
0x0a, 0xfa, 0x50, 0x1a, 0x3e, 0xc2, 0x21, 0x8e, 0x7a, 0x93, 0x93, 0x6a, 0x3f, 0x46, 0x6e, 0x3f,
0xee, 0xdf, 0x97, 0x86, 0x7f, 0x77, 0x67, 0xec, 0x89, 0xe1, 0x45, 0x30, 0x90, 0x0a, 0x1e, 0x92,
0xd5, 0xe8, 0x5f, 0x88, 0xa3, 0xff, 0x93, 0xe3, 0x8e, 0x1d, 0x4c, 0x7d, 0x1b, 0x77, 0x6b, 0xc3,
0xe5, 0x60, 0x1b, 0xae, 0x17, 0xe2, 0xe8, 0xf0, 0x97, 0x9b, 0xf9, 0x36, 0xee, 0xd6, 0x9b, 0x83,
0xb7, 0xf7, 0x31, 0xda, 0x7c, 0x84, 0x68, 0x72, 0x59, 0xd5, 0x04, 0x6d, 0x6b, 0x82, 0x76, 0x35,
0x41, 0x1b, 0x47, 0x70, 0xe5, 0x08, 0xde, 0x3a, 0x82, 0x77, 0x8e, 0xe0, 0x4f, 0x47, 0xf0, 0xcb,
0x17, 0x41, 0x8f, 0x83, 0xf6, 0xc3, 0x3f, 0x01, 0x00, 0x00, 0xff, 0xff, 0x52, 0xa0, 0xb5, 0xc9,
0x64, 0x01, 0x00, 0x00,
}

2
vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto generated vendored
View file

@ -17,7 +17,7 @@ limitations under the License.
// This file was autogenerated by go-to-protobuf. Do not edit it manually!
syntax = 'proto2';
syntax = "proto2";
package k8s.io.apimachinery.pkg.util.intstr;

42
vendor/k8s.io/apimachinery/pkg/util/intstr/instr_fuzz.go generated vendored Normal file
View file

@ -0,0 +1,42 @@
// +build !notest
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package intstr
import (
fuzz "github.com/google/gofuzz"
)
// Fuzz satisfies fuzz.Interface
func (intstr *IntOrString) Fuzz(c fuzz.Continue) {
if intstr == nil {
return
}
if c.RandBool() {
intstr.Type = Int
c.Fuzz(&intstr.IntVal)
intstr.StrVal = ""
} else {
intstr.Type = String
intstr.IntVal = 0
c.Fuzz(&intstr.StrVal)
}
}
// ensure IntOrString implements fuzz.Interface
var _ fuzz.Interface = &IntOrString{}

81
vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go generated vendored
View file

@ -25,8 +25,7 @@ import (
"strconv"
"strings"
"github.com/google/gofuzz"
"k8s.io/klog"
"k8s.io/klog/v2"
)
// IntOrString is a type that can hold an int32 or a string. When used in
@ -45,7 +44,7 @@ type IntOrString struct {
}
// Type represents the stored type of IntOrString.
type Type int
type Type int64
const (
Int Type = iota // The IntOrString holds an int.
@ -90,6 +89,9 @@ func (intstr *IntOrString) UnmarshalJSON(value []byte) error {
// String returns the string value, or the Itoa of the int value.
func (intstr *IntOrString) String() string {
if intstr == nil {
return "<nil>"
}
if intstr.Type == String {
return intstr.StrVal
}
@ -97,7 +99,8 @@ func (intstr *IntOrString) String() string {
}
// IntValue returns the IntVal if type Int, or if
// it is a String, will attempt a conversion to int.
// it is a String, will attempt a conversion to int,
// returning 0 if a parsing error occurs.
func (intstr *IntOrString) IntValue() int {
if intstr.Type == String {
i, _ := strconv.Atoi(intstr.StrVal)
@ -122,26 +125,11 @@ func (intstr IntOrString) MarshalJSON() ([]byte, error) {
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (_ IntOrString) OpenAPISchemaType() []string { return []string{"string"} }
func (IntOrString) OpenAPISchemaType() []string { return []string{"string"} }
// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (_ IntOrString) OpenAPISchemaFormat() string { return "int-or-string" }
func (intstr *IntOrString) Fuzz(c fuzz.Continue) {
if intstr == nil {
return
}
if c.RandBool() {
intstr.Type = Int
c.Fuzz(&intstr.IntVal)
intstr.StrVal = ""
} else {
intstr.Type = String
intstr.IntVal = 0
c.Fuzz(&intstr.StrVal)
}
}
func (IntOrString) OpenAPISchemaFormat() string { return "int-or-string" }
func ValueOrDefault(intOrPercent *IntOrString, defaultValue IntOrString) *IntOrString {
if intOrPercent == nil {
@ -150,6 +138,33 @@ func ValueOrDefault(intOrPercent *IntOrString, defaultValue IntOrString) *IntOrS
return intOrPercent
}
// GetScaledValueFromIntOrPercent is meant to replace GetValueFromIntOrPercent.
// This method returns a scaled value from an IntOrString type. If the IntOrString
// is a percentage string value it's treated as a percentage and scaled appropriately
// in accordance to the total, if it's an int value it's treated as a a simple value and
// if it is a string value which is either non-numeric or numeric but lacking a trailing '%' it returns an error.
func GetScaledValueFromIntOrPercent(intOrPercent *IntOrString, total int, roundUp bool) (int, error) {
if intOrPercent == nil {
return 0, errors.New("nil value for IntOrString")
}
value, isPercent, err := getIntOrPercentValueSafely(intOrPercent)
if err != nil {
return 0, fmt.Errorf("invalid value for IntOrString: %v", err)
}
if isPercent {
if roundUp {
value = int(math.Ceil(float64(value) * (float64(total)) / 100))
} else {
value = int(math.Floor(float64(value) * (float64(total)) / 100))
}
}
return value, nil
}
// GetValueFromIntOrPercent was deprecated in favor of
// GetScaledValueFromIntOrPercent. This method was treating all int as a numeric value and all
// strings with or without a percent symbol as a percentage value.
// Deprecated
func GetValueFromIntOrPercent(intOrPercent *IntOrString, total int, roundUp bool) (int, error) {
if intOrPercent == nil {
return 0, errors.New("nil value for IntOrString")
@ -168,6 +183,8 @@ func GetValueFromIntOrPercent(intOrPercent *IntOrString, total int, roundUp bool
return value, nil
}
// getIntOrPercentValue is a legacy function and only meant to be called by GetValueFromIntOrPercent
// For a more correct implementation call getIntOrPercentSafely
func getIntOrPercentValue(intOrStr *IntOrString) (int, bool, error) {
switch intOrStr.Type {
case Int:
@ -182,3 +199,25 @@ func getIntOrPercentValue(intOrStr *IntOrString) (int, bool, error) {
}
return 0, false, fmt.Errorf("invalid type: neither int nor percentage")
}
func getIntOrPercentValueSafely(intOrStr *IntOrString) (int, bool, error) {
switch intOrStr.Type {
case Int:
return intOrStr.IntValue(), false, nil
case String:
isPercent := false
s := intOrStr.StrVal
if strings.HasSuffix(s, "%") {
isPercent = true
s = strings.TrimSuffix(intOrStr.StrVal, "%")
} else {
return 0, false, fmt.Errorf("invalid type: string is not a percentage")
}
v, err := strconv.Atoi(s)
if err != nil {
return 0, false, fmt.Errorf("invalid value %q: %v", intOrStr.StrVal, err)
}
return int(v), isPercent, nil
}
return 0, false, fmt.Errorf("invalid type: neither int nor percentage")
}

50
vendor/k8s.io/apimachinery/pkg/util/json/json.go generated vendored
View file

@ -39,7 +39,8 @@ func Marshal(v interface{}) ([]byte, error) {
const maxDepth = 10000
// Unmarshal unmarshals the given data
// If v is a *map[string]interface{}, numbers are converted to int64 or float64
// If v is a *map[string]interface{}, *[]interface{}, or *interface{} numbers
// are converted to int64 or float64
func Unmarshal(data []byte, v interface{}) error {
switch v := v.(type) {
case *map[string]interface{}:
@ -52,7 +53,7 @@ func Unmarshal(data []byte, v interface{}) error {
return err
}
// If the decode succeeds, post-process the map to convert json.Number objects to int64 or float64
return convertMapNumbers(*v, 0)
return ConvertMapNumbers(*v, 0)
case *[]interface{}:
// Build a decoder from the given data
@ -64,16 +65,43 @@ func Unmarshal(data []byte, v interface{}) error {
return err
}
// If the decode succeeds, post-process the map to convert json.Number objects to int64 or float64
return convertSliceNumbers(*v, 0)
return ConvertSliceNumbers(*v, 0)
case *interface{}:
// Build a decoder from the given data
decoder := json.NewDecoder(bytes.NewBuffer(data))
// Preserve numbers, rather than casting to float64 automatically
decoder.UseNumber()
// Run the decode
if err := decoder.Decode(v); err != nil {
return err
}
// If the decode succeeds, post-process the map to convert json.Number objects to int64 or float64
return ConvertInterfaceNumbers(v, 0)
default:
return json.Unmarshal(data, v)
}
}
// convertMapNumbers traverses the map, converting any json.Number values to int64 or float64.
// ConvertInterfaceNumbers converts any json.Number values to int64 or float64.
// Values which are map[string]interface{} or []interface{} are recursively visited
func ConvertInterfaceNumbers(v *interface{}, depth int) error {
var err error
switch v2 := (*v).(type) {
case json.Number:
*v, err = convertNumber(v2)
case map[string]interface{}:
err = ConvertMapNumbers(v2, depth+1)
case []interface{}:
err = ConvertSliceNumbers(v2, depth+1)
}
return err
}
// ConvertMapNumbers traverses the map, converting any json.Number values to int64 or float64.
// values which are map[string]interface{} or []interface{} are recursively visited
func convertMapNumbers(m map[string]interface{}, depth int) error {
func ConvertMapNumbers(m map[string]interface{}, depth int) error {
if depth > maxDepth {
return fmt.Errorf("exceeded max depth of %d", maxDepth)
}
@ -84,9 +112,9 @@ func convertMapNumbers(m map[string]interface{}, depth int) error {
case json.Number:
m[k], err = convertNumber(v)
case map[string]interface{}:
err = convertMapNumbers(v, depth+1)
err = ConvertMapNumbers(v, depth+1)
case []interface{}:
err = convertSliceNumbers(v, depth+1)
err = ConvertSliceNumbers(v, depth+1)
}
if err != nil {
return err
@ -95,9 +123,9 @@ func convertMapNumbers(m map[string]interface{}, depth int) error {
return nil
}
// convertSliceNumbers traverses the slice, converting any json.Number values to int64 or float64.
// ConvertSliceNumbers traverses the slice, converting any json.Number values to int64 or float64.
// values which are map[string]interface{} or []interface{} are recursively visited
func convertSliceNumbers(s []interface{}, depth int) error {
func ConvertSliceNumbers(s []interface{}, depth int) error {
if depth > maxDepth {
return fmt.Errorf("exceeded max depth of %d", maxDepth)
}
@ -108,9 +136,9 @@ func convertSliceNumbers(s []interface{}, depth int) error {
case json.Number:
s[i], err = convertNumber(v)
case map[string]interface{}:
err = convertMapNumbers(v, depth+1)
err = ConvertMapNumbers(v, depth+1)
case []interface{}:
err = convertSliceNumbers(v, depth+1)
err = ConvertSliceNumbers(v, depth+1)
}
if err != nil {
return err

2
vendor/k8s.io/apimachinery/pkg/util/naming/from_stack.go generated vendored
View file

@ -82,7 +82,7 @@ var stackCreator = regexp.MustCompile(`(?m)^created by (.*)\n\s+(.*):(\d+) \+0x[
func extractStackCreator() (string, int, bool) {
stack := debug.Stack()
matches := stackCreator.FindStringSubmatch(string(stack))
if matches == nil || len(matches) != 4 {
if len(matches) != 4 {
return "", 0, false
}
line, err := strconv.Atoi(matches[3])

374
vendor/k8s.io/apimachinery/pkg/util/net/http.go generated vendored
View file

@ -21,18 +21,24 @@ import (
"bytes"
"context"
"crypto/tls"
"errors"
"fmt"
"io"
"mime"
"net"
"net/http"
"net/url"
"os"
"path"
"regexp"
"strconv"
"strings"
"time"
"unicode"
"unicode/utf8"
"golang.org/x/net/http2"
"k8s.io/klog"
"k8s.io/klog/v2"
)
// JoinPreservingTrailingSlash does a path.Join of the specified elements,
@ -57,8 +63,11 @@ func JoinPreservingTrailingSlash(elem ...string) string {
// IsTimeout returns true if the given error is a network timeout error
func IsTimeout(err error) bool {
neterr, ok := err.(net.Error)
return ok && neterr != nil && neterr.Timeout()
var neterr net.Error
if errors.As(err, &neterr) {
return neterr != nil && neterr.Timeout()
}
return false
}
// IsProbableEOF returns true if the given error resembles a connection termination
@ -71,13 +80,16 @@ func IsProbableEOF(err error) bool {
if err == nil {
return false
}
if uerr, ok := err.(*url.Error); ok {
var uerr *url.Error
if errors.As(err, &uerr) {
err = uerr.Err
}
msg := err.Error()
switch {
case err == io.EOF:
return true
case err == io.ErrUnexpectedEOF:
return true
case msg == "http: can't write HTTP request on broken connection":
return true
case strings.Contains(msg, "http2: server sent GOAWAY and closed the connection"):
@ -107,6 +119,9 @@ func SetOldTransportDefaults(t *http.Transport) *http.Transport {
if t.TLSHandshakeTimeout == 0 {
t.TLSHandshakeTimeout = defaultTransport.TLSHandshakeTimeout
}
if t.IdleConnTimeout == 0 {
t.IdleConnTimeout = defaultTransport.IdleConnTimeout
}
return t
}
@ -117,14 +132,77 @@ func SetTransportDefaults(t *http.Transport) *http.Transport {
// Allow clients to disable http2 if needed.
if s := os.Getenv("DISABLE_HTTP2"); len(s) > 0 {
klog.Infof("HTTP2 has been explicitly disabled")
} else {
if err := http2.ConfigureTransport(t); err != nil {
} else if allowsHTTP2(t) {
if err := configureHTTP2Transport(t); err != nil {
klog.Warningf("Transport failed http2 configuration: %v", err)
}
}
return t
}
func readIdleTimeoutSeconds() int {
ret := 30
// User can set the readIdleTimeout to 0 to disable the HTTP/2
// connection health check.
if s := os.Getenv("HTTP2_READ_IDLE_TIMEOUT_SECONDS"); len(s) > 0 {
i, err := strconv.Atoi(s)
if err != nil {
klog.Warningf("Illegal HTTP2_READ_IDLE_TIMEOUT_SECONDS(%q): %v."+
" Default value %d is used", s, err, ret)
return ret
}
ret = i
}
return ret
}
func pingTimeoutSeconds() int {
ret := 15
if s := os.Getenv("HTTP2_PING_TIMEOUT_SECONDS"); len(s) > 0 {
i, err := strconv.Atoi(s)
if err != nil {
klog.Warningf("Illegal HTTP2_PING_TIMEOUT_SECONDS(%q): %v."+
" Default value %d is used", s, err, ret)
return ret
}
ret = i
}
return ret
}
func configureHTTP2Transport(t *http.Transport) error {
t2, err := http2.ConfigureTransports(t)
if err != nil {
return err
}
// The following enables the HTTP/2 connection health check added in
// https://github.com/golang/net/pull/55. The health check detects and
// closes broken transport layer connections. Without the health check,
// a broken connection can linger too long, e.g., a broken TCP
// connection will be closed by the Linux kernel after 13 to 30 minutes
// by default, which caused
// https://github.com/kubernetes/client-go/issues/374 and
// https://github.com/kubernetes/kubernetes/issues/87615.
t2.ReadIdleTimeout = time.Duration(readIdleTimeoutSeconds()) * time.Second
t2.PingTimeout = time.Duration(pingTimeoutSeconds()) * time.Second
return nil
}
func allowsHTTP2(t *http.Transport) bool {
if t.TLSClientConfig == nil || len(t.TLSClientConfig.NextProtos) == 0 {
// the transport expressed no NextProto preference, allow
return true
}
for _, p := range t.TLSClientConfig.NextProtos {
if p == http2.NextProtoTLS {
// the transport explicitly allowed http/2
return true
}
}
// the transport explicitly set NextProtos and excluded http/2
return false
}
type RoundTripperWrapper interface {
http.RoundTripper
WrappedRoundTripper() http.RoundTripper
@ -194,13 +272,17 @@ func GetHTTPClient(req *http.Request) string {
return "unknown"
}
// SourceIPs splits the comma separated X-Forwarded-For header or returns the X-Real-Ip header or req.RemoteAddr,
// in that order, ignoring invalid IPs. It returns nil if all of these are empty or invalid.
// SourceIPs splits the comma separated X-Forwarded-For header and joins it with
// the X-Real-Ip header and/or req.RemoteAddr, ignoring invalid IPs.
// The X-Real-Ip is omitted if it's already present in the X-Forwarded-For chain.
// The req.RemoteAddr is always the last IP in the returned list.
// It returns nil if all of these are empty or invalid.
func SourceIPs(req *http.Request) []net.IP {
var srcIPs []net.IP
hdr := req.Header
// First check the X-Forwarded-For header for requests via proxy.
hdrForwardedFor := hdr.Get("X-Forwarded-For")
forwardedForIPs := []net.IP{}
if hdrForwardedFor != "" {
// X-Forwarded-For can be a csv of IPs in case of multiple proxies.
// Use the first valid one.
@ -208,38 +290,49 @@ func SourceIPs(req *http.Request) []net.IP {
for _, part := range parts {
ip := net.ParseIP(strings.TrimSpace(part))
if ip != nil {
forwardedForIPs = append(forwardedForIPs, ip)
srcIPs = append(srcIPs, ip)
}
}
}
if len(forwardedForIPs) > 0 {
return forwardedForIPs
}
// Try the X-Real-Ip header.
hdrRealIp := hdr.Get("X-Real-Ip")
if hdrRealIp != "" {
ip := net.ParseIP(hdrRealIp)
if ip != nil {
return []net.IP{ip}
// Only append the X-Real-Ip if it's not already contained in the X-Forwarded-For chain.
if ip != nil && !containsIP(srcIPs, ip) {
srcIPs = append(srcIPs, ip)
}
}
// Fallback to Remote Address in request, which will give the correct client IP when there is no proxy.
// Always include the request Remote Address as it cannot be easily spoofed.
var remoteIP net.IP
// Remote Address in Go's HTTP server is in the form host:port so we need to split that first.
host, _, err := net.SplitHostPort(req.RemoteAddr)
if err == nil {
if remoteIP := net.ParseIP(host); remoteIP != nil {
return []net.IP{remoteIP}
remoteIP = net.ParseIP(host)
}
// Fallback if Remote Address was just IP.
if remoteIP == nil {
remoteIP = net.ParseIP(req.RemoteAddr)
}
// Don't duplicate remote IP if it's already the last address in the chain.
if remoteIP != nil && (len(srcIPs) == 0 || !remoteIP.Equal(srcIPs[len(srcIPs)-1])) {
srcIPs = append(srcIPs, remoteIP)
}
return srcIPs
}
// Checks whether the given IP address is contained in the list of IPs.
func containsIP(ips []net.IP, ip net.IP) bool {
for _, v := range ips {
if v.Equal(ip) {
return true
}
}
// Fallback if Remote Address was just IP.
if remoteIP := net.ParseIP(req.RemoteAddr); remoteIP != nil {
return []net.IP{remoteIP}
}
return nil
return false
}
// Extracts and returns the clients IP from the given request.
@ -413,7 +506,7 @@ redirectLoop:
// Only follow redirects to the same host. Otherwise, propagate the redirect response back.
if requireSameHostRedirects && location.Hostname() != originalLocation.Hostname() {
break redirectLoop
return nil, nil, fmt.Errorf("hostname mismatch: expected %s, found %s", originalLocation.Hostname(), location.Hostname())
}
// Reset the connection.
@ -449,3 +542,232 @@ func CloneHeader(in http.Header) http.Header {
}
return out
}
// WarningHeader contains a single RFC2616 14.46 warnings header
type WarningHeader struct {
// Codeindicates the type of warning. 299 is a miscellaneous persistent warning
Code int
// Agent contains the name or pseudonym of the server adding the Warning header.
// A single "-" is recommended when agent is unknown.
Agent string
// Warning text
Text string
}
// ParseWarningHeaders extract RFC2616 14.46 warnings headers from the specified set of header values.
// Multiple comma-separated warnings per header are supported.
// If errors are encountered on a header, the remainder of that header are skipped and subsequent headers are parsed.
// Returns successfully parsed warnings and any errors encountered.
func ParseWarningHeaders(headers []string) ([]WarningHeader, []error) {
var (
results []WarningHeader
errs []error
)
for _, header := range headers {
for len(header) > 0 {
result, remainder, err := ParseWarningHeader(header)
if err != nil {
errs = append(errs, err)
break
}
results = append(results, result)
header = remainder
}
}
return results, errs
}
var (
codeMatcher = regexp.MustCompile(`^[0-9]{3}$`)
wordDecoder = &mime.WordDecoder{}
)
// ParseWarningHeader extracts one RFC2616 14.46 warning from the specified header,
// returning an error if the header does not contain a correctly formatted warning.
// Any remaining content in the header is returned.
func ParseWarningHeader(header string) (result WarningHeader, remainder string, err error) {
// https://tools.ietf.org/html/rfc2616#section-14.46
// updated by
// https://tools.ietf.org/html/rfc7234#section-5.5
// https://tools.ietf.org/html/rfc7234#appendix-A
// Some requirements regarding production and processing of the Warning
// header fields have been relaxed, as it is not widely implemented.
// Furthermore, the Warning header field no longer uses RFC 2047
// encoding, nor does it allow multiple languages, as these aspects were
// not implemented.
//
// Format is one of:
// warn-code warn-agent "warn-text"
// warn-code warn-agent "warn-text" "warn-date"
//
// warn-code is a three digit number
// warn-agent is unquoted and contains no spaces
// warn-text is quoted with backslash escaping (RFC2047-encoded according to RFC2616, not encoded according to RFC7234)
// warn-date is optional, quoted, and in HTTP-date format (no embedded or escaped quotes)
//
// additional warnings can optionally be included in the same header by comma-separating them:
// warn-code warn-agent "warn-text" "warn-date"[, warn-code warn-agent "warn-text" "warn-date", ...]
// tolerate leading whitespace
header = strings.TrimSpace(header)
parts := strings.SplitN(header, " ", 3)
if len(parts) != 3 {
return WarningHeader{}, "", errors.New("invalid warning header: fewer than 3 segments")
}
code, agent, textDateRemainder := parts[0], parts[1], parts[2]
// verify code format
if !codeMatcher.Match([]byte(code)) {
return WarningHeader{}, "", errors.New("invalid warning header: code segment is not 3 digits between 100-299")
}
codeInt, _ := strconv.ParseInt(code, 10, 64)
// verify agent presence
if len(agent) == 0 {
return WarningHeader{}, "", errors.New("invalid warning header: empty agent segment")
}
if !utf8.ValidString(agent) || hasAnyRunes(agent, unicode.IsControl) {
return WarningHeader{}, "", errors.New("invalid warning header: invalid agent")
}
// verify textDateRemainder presence
if len(textDateRemainder) == 0 {
return WarningHeader{}, "", errors.New("invalid warning header: empty text segment")
}
// extract text
text, dateAndRemainder, err := parseQuotedString(textDateRemainder)
if err != nil {
return WarningHeader{}, "", fmt.Errorf("invalid warning header: %v", err)
}
// tolerate RFC2047-encoded text from warnings produced according to RFC2616
if decodedText, err := wordDecoder.DecodeHeader(text); err == nil {
text = decodedText
}
if !utf8.ValidString(text) || hasAnyRunes(text, unicode.IsControl) {
return WarningHeader{}, "", errors.New("invalid warning header: invalid text")
}
result = WarningHeader{Code: int(codeInt), Agent: agent, Text: text}
if len(dateAndRemainder) > 0 {
if dateAndRemainder[0] == '"' {
// consume date
foundEndQuote := false
for i := 1; i < len(dateAndRemainder); i++ {
if dateAndRemainder[i] == '"' {
foundEndQuote = true
remainder = strings.TrimSpace(dateAndRemainder[i+1:])
break
}
}
if !foundEndQuote {
return WarningHeader{}, "", errors.New("invalid warning header: unterminated date segment")
}
} else {
remainder = dateAndRemainder
}
}
if len(remainder) > 0 {
if remainder[0] == ',' {
// consume comma if present
remainder = strings.TrimSpace(remainder[1:])
} else {
return WarningHeader{}, "", errors.New("invalid warning header: unexpected token after warn-date")
}
}
return result, remainder, nil
}
func parseQuotedString(quotedString string) (string, string, error) {
if len(quotedString) == 0 {
return "", "", errors.New("invalid quoted string: 0-length")
}
if quotedString[0] != '"' {
return "", "", errors.New("invalid quoted string: missing initial quote")
}
quotedString = quotedString[1:]
var remainder string
escaping := false
closedQuote := false
result := &bytes.Buffer{}
loop:
for i := 0; i < len(quotedString); i++ {
b := quotedString[i]
switch b {
case '"':
if escaping {
result.WriteByte(b)
escaping = false
} else {
closedQuote = true
remainder = strings.TrimSpace(quotedString[i+1:])
break loop
}
case '\\':
if escaping {
result.WriteByte(b)
escaping = false
} else {
escaping = true
}
default:
result.WriteByte(b)
escaping = false
}
}
if !closedQuote {
return "", "", errors.New("invalid quoted string: missing closing quote")
}
return result.String(), remainder, nil
}
func NewWarningHeader(code int, agent, text string) (string, error) {
if code < 0 || code > 999 {
return "", errors.New("code must be between 0 and 999")
}
if len(agent) == 0 {
agent = "-"
} else if !utf8.ValidString(agent) || strings.ContainsAny(agent, `\"`) || hasAnyRunes(agent, unicode.IsSpace, unicode.IsControl) {
return "", errors.New("agent must be valid UTF-8 and must not contain spaces, quotes, backslashes, or control characters")
}
if !utf8.ValidString(text) || hasAnyRunes(text, unicode.IsControl) {
return "", errors.New("text must be valid UTF-8 and must not contain control characters")
}
return fmt.Sprintf("%03d %s %s", code, agent, makeQuotedString(text)), nil
}
func hasAnyRunes(s string, runeCheckers ...func(rune) bool) bool {
for _, r := range s {
for _, checker := range runeCheckers {
if checker(r) {
return true
}
}
}
return false
}
func makeQuotedString(s string) string {
result := &bytes.Buffer{}
// opening quote
result.WriteRune('"')
for _, c := range s {
switch c {
case '"', '\\':
// escape " and \
result.WriteRune('\\')
result.WriteRune(c)
default:
// write everything else as-is
result.WriteRune(c)
}
}
// closing quote
result.WriteRune('"')
return result.String()
}

75
vendor/k8s.io/apimachinery/pkg/util/net/interface.go generated vendored
View file

@ -26,7 +26,7 @@ import (
"strings"
"k8s.io/klog"
"k8s.io/klog/v2"
)
type AddressFamily uint
@ -36,6 +36,18 @@ const (
familyIPv6 AddressFamily = 6
)
type AddressFamilyPreference []AddressFamily
var (
preferIPv4 = AddressFamilyPreference{familyIPv4, familyIPv6}
preferIPv6 = AddressFamilyPreference{familyIPv6, familyIPv4}
)
const (
// LoopbackInterfaceName is the default name of the loopback interface
LoopbackInterfaceName = "lo"
)
const (
ipv4RouteFile = "/proc/net/route"
ipv6RouteFile = "/proc/net/ipv6_route"
@ -53,7 +65,7 @@ type RouteFile struct {
parse func(input io.Reader) ([]Route, error)
}
// noRoutesError can be returned by ChooseBindAddress() in case of no routes
// noRoutesError can be returned in case of no routes
type noRoutesError struct {
message string
}
@ -254,7 +266,7 @@ func getIPFromInterface(intfName string, forFamily AddressFamily, nw networkInte
return nil, nil
}
// memberOF tells if the IP is of the desired family. Used for checking interface addresses.
// memberOf tells if the IP is of the desired family. Used for checking interface addresses.
func memberOf(ip net.IP, family AddressFamily) bool {
if ip.To4() != nil {
return family == familyIPv4
@ -265,8 +277,8 @@ func memberOf(ip net.IP, family AddressFamily) bool {
// chooseIPFromHostInterfaces looks at all system interfaces, trying to find one that is up that
// has a global unicast address (non-loopback, non-link local, non-point2point), and returns the IP.
// Searches for IPv4 addresses, and then IPv6 addresses.
func chooseIPFromHostInterfaces(nw networkInterfacer) (net.IP, error) {
// addressFamilies determines whether it prefers IPv4 or IPv6
func chooseIPFromHostInterfaces(nw networkInterfacer, addressFamilies AddressFamilyPreference) (net.IP, error) {
intfs, err := nw.Interfaces()
if err != nil {
return nil, err
@ -274,7 +286,7 @@ func chooseIPFromHostInterfaces(nw networkInterfacer) (net.IP, error) {
if len(intfs) == 0 {
return nil, fmt.Errorf("no interfaces found on host.")
}
for _, family := range []AddressFamily{familyIPv4, familyIPv6} {
for _, family := range addressFamilies {
klog.V(4).Infof("Looking for system interface with a global IPv%d address", uint(family))
for _, intf := range intfs {
if !isInterfaceUp(&intf) {
@ -321,15 +333,19 @@ func chooseIPFromHostInterfaces(nw networkInterfacer) (net.IP, error) {
// IP of the interface with a gateway on it (with priority given to IPv4). For a node
// with no internet connection, it returns error.
func ChooseHostInterface() (net.IP, error) {
return chooseHostInterface(preferIPv4)
}
func chooseHostInterface(addressFamilies AddressFamilyPreference) (net.IP, error) {
var nw networkInterfacer = networkInterface{}
if _, err := os.Stat(ipv4RouteFile); os.IsNotExist(err) {
return chooseIPFromHostInterfaces(nw)
return chooseIPFromHostInterfaces(nw, addressFamilies)
}
routes, err := getAllDefaultRoutes()
if err != nil {
return nil, err
}
return chooseHostInterfaceFromRoute(routes, nw)
return chooseHostInterfaceFromRoute(routes, nw, addressFamilies)
}
// networkInterfacer defines an interface for several net library functions. Production
@ -377,10 +393,10 @@ func getAllDefaultRoutes() ([]Route, error) {
}
// chooseHostInterfaceFromRoute cycles through each default route provided, looking for a
// global IP address from the interface for the route. Will first look all each IPv4 route for
// an IPv4 IP, and then will look at each IPv6 route for an IPv6 IP.
func chooseHostInterfaceFromRoute(routes []Route, nw networkInterfacer) (net.IP, error) {
for _, family := range []AddressFamily{familyIPv4, familyIPv6} {
// global IP address from the interface for the route. addressFamilies determines whether it
// prefers IPv4 or IPv6
func chooseHostInterfaceFromRoute(routes []Route, nw networkInterfacer, addressFamilies AddressFamilyPreference) (net.IP, error) {
for _, family := range addressFamilies {
klog.V(4).Infof("Looking for default routes with IPv%d addresses", uint(family))
for _, route := range routes {
if route.Family != family {
@ -401,12 +417,19 @@ func chooseHostInterfaceFromRoute(routes []Route, nw networkInterfacer) (net.IP,
return nil, fmt.Errorf("unable to select an IP from default routes.")
}
// If bind-address is usable, return it directly
// If bind-address is not usable (unset, 0.0.0.0, or loopback), we will use the host's default
// interface.
func ChooseBindAddress(bindAddress net.IP) (net.IP, error) {
// ResolveBindAddress returns the IP address of a daemon, based on the given bindAddress:
// If bindAddress is unset, it returns the host's default IP, as with ChooseHostInterface().
// If bindAddress is unspecified or loopback, it returns the default IP of the same
// address family as bindAddress.
// Otherwise, it just returns bindAddress.
func ResolveBindAddress(bindAddress net.IP) (net.IP, error) {
addressFamilies := preferIPv4
if bindAddress != nil && memberOf(bindAddress, familyIPv6) {
addressFamilies = preferIPv6
}
if bindAddress == nil || bindAddress.IsUnspecified() || bindAddress.IsLoopback() {
hostIP, err := ChooseHostInterface()
hostIP, err := chooseHostInterface(addressFamilies)
if err != nil {
return nil, err
}
@ -414,3 +437,21 @@ func ChooseBindAddress(bindAddress net.IP) (net.IP, error) {
}
return bindAddress, nil
}
// ChooseBindAddressForInterface choose a global IP for a specific interface, with priority given to IPv4.
// This is required in case of network setups where default routes are present, but network
// interfaces use only link-local addresses (e.g. as described in RFC5549).
// e.g when using BGP to announce a host IP over link-local ip addresses and this ip address is attached to the lo interface.
func ChooseBindAddressForInterface(intfName string) (net.IP, error) {
var nw networkInterfacer = networkInterface{}
for _, family := range preferIPv4 {
ip, err := getIPFromInterface(intfName, family, nw)
if err != nil {
return nil, err
}
if ip != nil {
return ip, nil
}
}
return nil, fmt.Errorf("unable to select an IP from %s network interface", intfName)
}

2
vendor/k8s.io/apimachinery/pkg/util/net/port_range.go generated vendored
View file

@ -130,7 +130,7 @@ func (*PortRange) Type() string {
}
// ParsePortRange parses a string of the form "min-max", inclusive at both
// ends, and initializs a new PortRange from it.
// ends, and initializes a new PortRange from it.
func ParsePortRange(value string) (*PortRange, error) {
pr := &PortRange{}
err := pr.Set(value)

26
vendor/k8s.io/apimachinery/pkg/util/net/util.go generated vendored
View file

@ -17,9 +17,8 @@ limitations under the License.
package net
import (
"errors"
"net"
"net/url"
"os"
"reflect"
"syscall"
)
@ -40,17 +39,18 @@ func IPNetEqual(ipnet1, ipnet2 *net.IPNet) bool {
// Returns if the given err is "connection reset by peer" error.
func IsConnectionReset(err error) bool {
if urlErr, ok := err.(*url.Error); ok {
err = urlErr.Err
}
if opErr, ok := err.(*net.OpError); ok {
err = opErr.Err
}
if osErr, ok := err.(*os.SyscallError); ok {
err = osErr.Err
}
if errno, ok := err.(syscall.Errno); ok && errno == syscall.ECONNRESET {
return true
var errno syscall.Errno
if errors.As(err, &errno) {
return errno == syscall.ECONNRESET
}
return false
}
// Returns if the given err is "connection refused" error
func IsConnectionRefused(err error) bool {
var errno syscall.Errno
if errors.As(err, &errno) {
return errno == syscall.ECONNREFUSED
}
return false
}

23
vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go generated vendored
View file

@ -18,11 +18,12 @@ package runtime
import (
"fmt"
"net/http"
"runtime"
"sync"
"time"
"k8s.io/klog"
"k8s.io/klog/v2"
)
var (
@ -40,11 +41,7 @@ var PanicHandlers = []func(interface{}){logPanic}
// called in case of panic. HandleCrash actually crashes, after calling the
// handlers and logging the panic message.
//
// TODO: remove this function. We are switching to a world where it's safe for
// apiserver to panic, since it will be restarted by kubelet. At the beginning
// of the Kubernetes project, nothing was going to restart apiserver and so
// catching panics was important. But it's actually much simpler for monitoring
// software if we just exit when an unexpected panic happens.
// E.g., you can provide one or more additional handlers for something like shutting down go routines gracefully.
func HandleCrash(additionalHandlers ...func(interface{})) {
if r := recover(); r != nil {
for _, fn := range PanicHandlers {
@ -60,8 +57,16 @@ func HandleCrash(additionalHandlers ...func(interface{})) {
}
}
// logPanic logs the caller tree when a panic occurs.
// logPanic logs the caller tree when a panic occurs (except in the special case of http.ErrAbortHandler).
func logPanic(r interface{}) {
if r == http.ErrAbortHandler {
// honor the http.ErrAbortHandler sentinel panic value:
// ErrAbortHandler is a sentinel panic value to abort a handler.
// While any panic from ServeHTTP aborts the response to the client,
// panicking with ErrAbortHandler also suppresses logging of a stack trace to the server's error log.
return
}
// Same as stdlib http server code. Manually allocate stack trace buffer size
// to prevent excessively large logs
const size = 64 << 10
@ -74,7 +79,7 @@ func logPanic(r interface{}) {
}
}
// ErrorHandlers is a list of functions which will be invoked when an unreturnable
// ErrorHandlers is a list of functions which will be invoked when a nonreturnable
// error occurs.
// TODO(lavalamp): for testability, this and the below HandleError function
// should be packaged up into a testable and reusable object.
@ -160,7 +165,7 @@ func RecoverFromPanic(err *error) {
}
}
// Must panics on non-nil errors. Useful to handling programmer level errors.
// Must panics on non-nil errors. Useful to handling programmer level errors.
func Must(err error) {
if err != nil {
panic(err)

6
vendor/k8s.io/apimachinery/pkg/util/sets/byte.go generated vendored
View file

@ -46,17 +46,19 @@ func ByteKeySet(theMap interface{}) Byte {
}
// Insert adds items to the set.
func (s Byte) Insert(items ...byte) {
func (s Byte) Insert(items ...byte) Byte {
for _, item := range items {
s[item] = Empty{}
}
return s
}
// Delete removes all items from the set.
func (s Byte) Delete(items ...byte) {
func (s Byte) Delete(items ...byte) Byte {
for _, item := range items {
delete(s, item)
}
return s
}
// Has returns true if and only if item is contained in the set.

6
vendor/k8s.io/apimachinery/pkg/util/sets/int.go generated vendored
View file

@ -46,17 +46,19 @@ func IntKeySet(theMap interface{}) Int {
}
// Insert adds items to the set.
func (s Int) Insert(items ...int) {
func (s Int) Insert(items ...int) Int {
for _, item := range items {
s[item] = Empty{}
}
return s
}
// Delete removes all items from the set.
func (s Int) Delete(items ...int) {
func (s Int) Delete(items ...int) Int {
for _, item := range items {
delete(s, item)
}
return s
}
// Has returns true if and only if item is contained in the set.

6
vendor/k8s.io/apimachinery/pkg/util/sets/int32.go generated vendored
View file

@ -46,17 +46,19 @@ func Int32KeySet(theMap interface{}) Int32 {
}
// Insert adds items to the set.
func (s Int32) Insert(items ...int32) {
func (s Int32) Insert(items ...int32) Int32 {
for _, item := range items {
s[item] = Empty{}
}
return s
}
// Delete removes all items from the set.
func (s Int32) Delete(items ...int32) {
func (s Int32) Delete(items ...int32) Int32 {
for _, item := range items {
delete(s, item)
}
return s
}
// Has returns true if and only if item is contained in the set.

6
vendor/k8s.io/apimachinery/pkg/util/sets/int64.go generated vendored
View file

@ -46,17 +46,19 @@ func Int64KeySet(theMap interface{}) Int64 {
}
// Insert adds items to the set.
func (s Int64) Insert(items ...int64) {
func (s Int64) Insert(items ...int64) Int64 {
for _, item := range items {
s[item] = Empty{}
}
return s
}
// Delete removes all items from the set.
func (s Int64) Delete(items ...int64) {
func (s Int64) Delete(items ...int64) Int64 {
for _, item := range items {
delete(s, item)
}
return s
}
// Has returns true if and only if item is contained in the set.

6
vendor/k8s.io/apimachinery/pkg/util/sets/string.go generated vendored
View file

@ -46,17 +46,19 @@ func StringKeySet(theMap interface{}) String {
}
// Insert adds items to the set.
func (s String) Insert(items ...string) {
func (s String) Insert(items ...string) String {
for _, item := range items {
s[item] = Empty{}
}
return s
}
// Delete removes all items from the set.
func (s String) Delete(items ...string) {
func (s String) Delete(items ...string) String {
for _, item := range items {
delete(s, item)
}
return s
}
// Has returns true if and only if item is contained in the set.

6
vendor/k8s.io/apimachinery/pkg/util/strategicpatch/patch.go generated vendored
View file

@ -1014,7 +1014,7 @@ func validatePatchWithSetOrderList(patchList, setOrderList interface{}, mergeKey
setOrderIndex++
}
// If patchIndex is inbound but setOrderIndex if out of bound mean there are items mismatching between the patch list and setElementOrder list.
// the second check is is a sanity check, and should always be true if the first is true.
// the second check is a sanity check, and should always be true if the first is true.
if patchIndex < len(nonDeleteList) && setOrderIndex >= len(typedSetOrderList) {
return fmt.Errorf("The order in patch list:\n%v\n doesn't match %s list:\n%v\n", typedPatchList, setElementOrderDirectivePrefix, setOrderList)
}
@ -1321,9 +1321,7 @@ func mergeMap(original, patch map[string]interface{}, schema LookupPatchMeta, me
// Preserving the null value is useful when we want to send an explicit
// delete to the API server.
if patchV == nil {
if _, ok := original[k]; ok {
delete(original, k)
}
delete(original, k)
if mergeOptions.IgnoreUnmatchedNulls {
continue
}

15
vendor/k8s.io/apimachinery/pkg/util/validation/field/errors.go generated vendored
View file

@ -116,6 +116,10 @@ const (
// This is similar to ErrorTypeInvalid, but the error will not include the
// too-long value. See TooLong().
ErrorTypeTooLong ErrorType = "FieldValueTooLong"
// ErrorTypeTooMany is used to report "too many". This is used to
// report that a given list has too many items. This is similar to FieldValueTooLong,
// but the error indicates quantity instead of length.
ErrorTypeTooMany ErrorType = "FieldValueTooMany"
// ErrorTypeInternal is used to report other errors that are not related
// to user input. See InternalError().
ErrorTypeInternal ErrorType = "InternalError"
@ -138,6 +142,8 @@ func (t ErrorType) String() string {
return "Forbidden"
case ErrorTypeTooLong:
return "Too long"
case ErrorTypeTooMany:
return "Too many"
case ErrorTypeInternal:
return "Internal error"
default:
@ -198,7 +204,14 @@ func Forbidden(field *Path, detail string) *Error {
// Invalid, but the returned error will not include the too-long
// value.
func TooLong(field *Path, value interface{}, maxLength int) *Error {
return &Error{ErrorTypeTooLong, field.String(), value, fmt.Sprintf("must have at most %d characters", maxLength)}
return &Error{ErrorTypeTooLong, field.String(), value, fmt.Sprintf("must have at most %d bytes", maxLength)}
}
// TooMany returns a *Error indicating "too many". This is used to
// report that a given list has too many items. This is similar to TooLong,
// but the returned error indicates quantity instead of length.
func TooMany(field *Path, actualQuantity, maxQuantity int) *Error {
return &Error{ErrorTypeTooMany, field.String(), actualQuantity, fmt.Sprintf("must have at most %d items", maxQuantity)}
}
// InternalError returns a *Error indicating "internal error". This is used

3
vendor/k8s.io/apimachinery/pkg/util/validation/field/path.go generated vendored
View file

@ -67,6 +67,9 @@ func (p *Path) Key(key string) *Path {
// String produces a string representation of the Path.
func (p *Path) String() string {
if p == nil {
return "<nil>"
}
// make a slice to iterate
elems := []*Path{}
for ; p != nil; p = p.parent {

95
vendor/k8s.io/apimachinery/pkg/util/validation/validation.go generated vendored
View file

@ -70,7 +70,11 @@ func IsQualifiedName(value string) []string {
return errs
}
// IsFullyQualifiedName checks if the name is fully qualified.
// IsFullyQualifiedName checks if the name is fully qualified. This is similar
// to IsFullyQualifiedDomainName but requires a minimum of 3 segments instead of
// 2 and does not accept a trailing . as valid.
// TODO: This function is deprecated and preserved until all callers migrate to
// IsFullyQualifiedDomainName; please don't add new callers.
func IsFullyQualifiedName(fldPath *field.Path, name string) field.ErrorList {
var allErrors field.ErrorList
if len(name) == 0 {
@ -85,6 +89,69 @@ func IsFullyQualifiedName(fldPath *field.Path, name string) field.ErrorList {
return allErrors
}
// IsFullyQualifiedDomainName checks if the domain name is fully qualified. This
// is similar to IsFullyQualifiedName but only requires a minimum of 2 segments
// instead of 3 and accepts a trailing . as valid.
func IsFullyQualifiedDomainName(fldPath *field.Path, name string) field.ErrorList {
var allErrors field.ErrorList
if len(name) == 0 {
return append(allErrors, field.Required(fldPath, ""))
}
if strings.HasSuffix(name, ".") {
name = name[:len(name)-1]
}
if errs := IsDNS1123Subdomain(name); len(errs) > 0 {
return append(allErrors, field.Invalid(fldPath, name, strings.Join(errs, ",")))
}
if len(strings.Split(name, ".")) < 2 {
return append(allErrors, field.Invalid(fldPath, name, "should be a domain with at least two segments separated by dots"))
}
for _, label := range strings.Split(name, ".") {
if errs := IsDNS1123Label(label); len(errs) > 0 {
return append(allErrors, field.Invalid(fldPath, label, strings.Join(errs, ",")))
}
}
return allErrors
}
// Allowed characters in an HTTP Path as defined by RFC 3986. A HTTP path may
// contain:
// * unreserved characters (alphanumeric, '-', '.', '_', '~')
// * percent-encoded octets
// * sub-delims ("!", "$", "&", "'", "(", ")", "*", "+", ",", ";", "=")
// * a colon character (":")
const httpPathFmt string = `[A-Za-z0-9/\-._~%!$&'()*+,;=:]+`
var httpPathRegexp = regexp.MustCompile("^" + httpPathFmt + "$")
// IsDomainPrefixedPath checks if the given string is a domain-prefixed path
// (e.g. acme.io/foo). All characters before the first "/" must be a valid
// subdomain as defined by RFC 1123. All characters trailing the first "/" must
// be valid HTTP Path characters as defined by RFC 3986.
func IsDomainPrefixedPath(fldPath *field.Path, dpPath string) field.ErrorList {
var allErrs field.ErrorList
if len(dpPath) == 0 {
return append(allErrs, field.Required(fldPath, ""))
}
segments := strings.SplitN(dpPath, "/", 2)
if len(segments) != 2 || len(segments[0]) == 0 || len(segments[1]) == 0 {
return append(allErrs, field.Invalid(fldPath, dpPath, "must be a domain-prefixed path (such as \"acme.io/foo\")"))
}
host := segments[0]
for _, err := range IsDNS1123Subdomain(host) {
allErrs = append(allErrs, field.Invalid(fldPath, host, err))
}
path := segments[1]
if !httpPathRegexp.MatchString(path) {
return append(allErrs, field.Invalid(fldPath, path, RegexError("Invalid path", httpPathFmt)))
}
return allErrs
}
const labelValueFmt string = "(" + qualifiedNameFmt + ")?"
const labelValueErrMsg string = "a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character"
@ -108,7 +175,7 @@ func IsValidLabelValue(value string) []string {
}
const dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?"
const dns1123LabelErrMsg string = "a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character"
const dns1123LabelErrMsg string = "a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character"
// DNS1123LabelMaxLength is a label's max length in DNS (RFC 1123)
const DNS1123LabelMaxLength int = 63
@ -129,7 +196,7 @@ func IsDNS1123Label(value string) []string {
}
const dns1123SubdomainFmt string = dns1123LabelFmt + "(\\." + dns1123LabelFmt + ")*"
const dns1123SubdomainErrorMsg string = "a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
const dns1123SubdomainErrorMsg string = "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
// DNS1123SubdomainMaxLength is a subdomain's max length in DNS (RFC 1123)
const DNS1123SubdomainMaxLength int = 253
@ -280,11 +347,31 @@ func IsValidPortName(port string) []string {
// IsValidIP tests that the argument is a valid IP address.
func IsValidIP(value string) []string {
if net.ParseIP(value) == nil {
return []string{"must be a valid IP address, (e.g. 10.9.8.7)"}
return []string{"must be a valid IP address, (e.g. 10.9.8.7 or 2001:db8::ffff)"}
}
return nil
}
// IsValidIPv4Address tests that the argument is a valid IPv4 address.
func IsValidIPv4Address(fldPath *field.Path, value string) field.ErrorList {
var allErrors field.ErrorList
ip := net.ParseIP(value)
if ip == nil || ip.To4() == nil {
allErrors = append(allErrors, field.Invalid(fldPath, value, "must be a valid IPv4 address"))
}
return allErrors
}
// IsValidIPv6Address tests that the argument is a valid IPv6 address.
func IsValidIPv6Address(fldPath *field.Path, value string) field.ErrorList {
var allErrors field.ErrorList
ip := net.ParseIP(value)
if ip == nil || ip.To4() != nil {
allErrors = append(allErrors, field.Invalid(fldPath, value, "must be a valid IPv6 address"))
}
return allErrors
}
const percentFmt string = "[0-9]+%"
const percentErrMsg string = "a valid percent string must be a numeric string followed by an ending '%'"

219
vendor/k8s.io/apimachinery/pkg/util/wait/wait.go generated vendored
View file

@ -19,10 +19,12 @@ package wait
import (
"context"
"errors"
"math"
"math/rand"
"sync"
"time"
"k8s.io/apimachinery/pkg/util/clock"
"k8s.io/apimachinery/pkg/util/runtime"
)
@ -128,9 +130,15 @@ func NonSlidingUntilWithContext(ctx context.Context, f func(context.Context), pe
// Close stopCh to stop. f may not be invoked if stop channel is already
// closed. Pass NeverStop to if you don't want it stop.
func JitterUntil(f func(), period time.Duration, jitterFactor float64, sliding bool, stopCh <-chan struct{}) {
var t *time.Timer
var sawTimeout bool
BackoffUntil(f, NewJitteredBackoffManager(period, jitterFactor, &clock.RealClock{}), sliding, stopCh)
}
// BackoffUntil loops until stop channel is closed, run f every duration given by BackoffManager.
//
// If sliding is true, the period is computed after f runs. If it is false then
// period includes the runtime for f.
func BackoffUntil(f func(), backoff BackoffManager, sliding bool, stopCh <-chan struct{}) {
var t clock.Timer
for {
select {
case <-stopCh:
@ -138,13 +146,8 @@ func JitterUntil(f func(), period time.Duration, jitterFactor float64, sliding b
default:
}
jitteredPeriod := period
if jitterFactor > 0.0 {
jitteredPeriod = Jitter(period, jitterFactor)
}
if !sliding {
t = resetOrReuseTimer(t, jitteredPeriod, sawTimeout)
t = backoff.Backoff()
}
func() {
@ -153,7 +156,7 @@ func JitterUntil(f func(), period time.Duration, jitterFactor float64, sliding b
}()
if sliding {
t = resetOrReuseTimer(t, jitteredPeriod, sawTimeout)
t = backoff.Backoff()
}
// NOTE: b/c there is no priority selection in golang
@ -164,8 +167,7 @@ func JitterUntil(f func(), period time.Duration, jitterFactor float64, sliding b
select {
case <-stopCh:
return
case <-t.C:
sawTimeout = true
case <-t.C():
}
}
}
@ -203,27 +205,41 @@ var ErrWaitTimeout = errors.New("timed out waiting for the condition")
// if the loop should be aborted.
type ConditionFunc func() (done bool, err error)
// runConditionWithCrashProtection runs a ConditionFunc with crash protection
func runConditionWithCrashProtection(condition ConditionFunc) (bool, error) {
defer runtime.HandleCrash()
return condition()
}
// Backoff holds parameters applied to a Backoff function.
type Backoff struct {
// The initial duration.
Duration time.Duration
// Duration is multiplied by factor each iteration. Must be greater
// than or equal to zero.
// Duration is multiplied by factor each iteration, if factor is not zero
// and the limits imposed by Steps and Cap have not been reached.
// Should not be negative.
// The jitter does not contribute to the updates to the duration parameter.
Factor float64
// The amount of jitter applied each iteration. Jitter is applied after
// cap.
// The sleep at each iteration is the duration plus an additional
// amount chosen uniformly at random from the interval between
// zero and `jitter*duration`.
Jitter float64
// The number of steps before duration stops changing. If zero, initial
// duration is always used. Used for exponential backoff in combination
// with Factor.
// The remaining number of iterations in which the duration
// parameter may change (but progress can be stopped earlier by
// hitting the cap). If not positive, the duration is not
// changed. Used for exponential backoff in combination with
// Factor and Cap.
Steps int
// The returned duration will never be greater than cap *before* jitter
// is applied. The actual maximum cap is `cap * (1.0 + jitter)`.
// A limit on revised values of the duration parameter. If a
// multiplication by the factor parameter would make the duration
// exceed the cap then the duration is set to the cap and the
// steps parameter is set to zero.
Cap time.Duration
}
// Step returns the next interval in the exponential backoff. This method
// will mutate the provided backoff.
// Step (1) returns an amount of time to sleep determined by the
// original Duration and Jitter and (2) mutates the provided Backoff
// to update its Steps and Duration.
func (b *Backoff) Step() time.Duration {
if b.Steps < 1 {
if b.Jitter > 0 {
@ -269,19 +285,118 @@ func contextForChannel(parentCh <-chan struct{}) (context.Context, context.Cance
return ctx, cancel
}
// BackoffManager manages backoff with a particular scheme based on its underlying implementation. It provides
// an interface to return a timer for backoff, and caller shall backoff until Timer.C() drains. If the second Backoff()
// is called before the timer from the first Backoff() call finishes, the first timer will NOT be drained and result in
// undetermined behavior.
// The BackoffManager is supposed to be called in a single-threaded environment.
type BackoffManager interface {
Backoff() clock.Timer
}
type exponentialBackoffManagerImpl struct {
backoff *Backoff
backoffTimer clock.Timer
lastBackoffStart time.Time
initialBackoff time.Duration
backoffResetDuration time.Duration
clock clock.Clock
}
// NewExponentialBackoffManager returns a manager for managing exponential backoff. Each backoff is jittered and
// backoff will not exceed the given max. If the backoff is not called within resetDuration, the backoff is reset.
// This backoff manager is used to reduce load during upstream unhealthiness.
func NewExponentialBackoffManager(initBackoff, maxBackoff, resetDuration time.Duration, backoffFactor, jitter float64, c clock.Clock) BackoffManager {
return &exponentialBackoffManagerImpl{
backoff: &Backoff{
Duration: initBackoff,
Factor: backoffFactor,
Jitter: jitter,
// the current impl of wait.Backoff returns Backoff.Duration once steps are used up, which is not
// what we ideally need here, we set it to max int and assume we will never use up the steps
Steps: math.MaxInt32,
Cap: maxBackoff,
},
backoffTimer: nil,
initialBackoff: initBackoff,
lastBackoffStart: c.Now(),
backoffResetDuration: resetDuration,
clock: c,
}
}
func (b *exponentialBackoffManagerImpl) getNextBackoff() time.Duration {
if b.clock.Now().Sub(b.lastBackoffStart) > b.backoffResetDuration {
b.backoff.Steps = math.MaxInt32
b.backoff.Duration = b.initialBackoff
}
b.lastBackoffStart = b.clock.Now()
return b.backoff.Step()
}
// Backoff implements BackoffManager.Backoff, it returns a timer so caller can block on the timer for exponential backoff.
// The returned timer must be drained before calling Backoff() the second time
func (b *exponentialBackoffManagerImpl) Backoff() clock.Timer {
if b.backoffTimer == nil {
b.backoffTimer = b.clock.NewTimer(b.getNextBackoff())
} else {
b.backoffTimer.Reset(b.getNextBackoff())
}
return b.backoffTimer
}
type jitteredBackoffManagerImpl struct {
clock clock.Clock
duration time.Duration
jitter float64
backoffTimer clock.Timer
}
// NewJitteredBackoffManager returns a BackoffManager that backoffs with given duration plus given jitter. If the jitter
// is negative, backoff will not be jittered.
func NewJitteredBackoffManager(duration time.Duration, jitter float64, c clock.Clock) BackoffManager {
return &jitteredBackoffManagerImpl{
clock: c,
duration: duration,
jitter: jitter,
backoffTimer: nil,
}
}
func (j *jitteredBackoffManagerImpl) getNextBackoff() time.Duration {
jitteredPeriod := j.duration
if j.jitter > 0.0 {
jitteredPeriod = Jitter(j.duration, j.jitter)
}
return jitteredPeriod
}
// Backoff implements BackoffManager.Backoff, it returns a timer so caller can block on the timer for jittered backoff.
// The returned timer must be drained before calling Backoff() the second time
func (j *jitteredBackoffManagerImpl) Backoff() clock.Timer {
backoff := j.getNextBackoff()
if j.backoffTimer == nil {
j.backoffTimer = j.clock.NewTimer(backoff)
} else {
j.backoffTimer.Reset(backoff)
}
return j.backoffTimer
}
// ExponentialBackoff repeats a condition check with exponential backoff.
//
// It checks the condition up to Steps times, increasing the wait by multiplying
// the previous duration by Factor.
//
// If Jitter is greater than zero, a random amount of each duration is added
// (between duration and duration*(1+jitter)).
//
// If the condition never returns true, ErrWaitTimeout is returned. All other
// errors terminate immediately.
// It repeatedly checks the condition and then sleeps, using `backoff.Step()`
// to determine the length of the sleep and adjust Duration and Steps.
// Stops and returns as soon as:
// 1. the condition check returns true or an error,
// 2. `backoff.Steps` checks of the condition have been done, or
// 3. a sleep truncated by the cap on duration has been completed.
// In case (1) the returned error is what the condition function returned.
// In all other cases, ErrWaitTimeout is returned.
func ExponentialBackoff(backoff Backoff, condition ConditionFunc) error {
for backoff.Steps > 0 {
if ok, err := condition(); err != nil || ok {
if ok, err := runConditionWithCrashProtection(condition); err != nil || ok {
return err
}
if backoff.Steps == 1 {
@ -327,7 +442,7 @@ func PollImmediate(interval, timeout time.Duration, condition ConditionFunc) err
}
func pollImmediateInternal(wait WaitFunc, condition ConditionFunc) error {
done, err := condition()
done, err := runConditionWithCrashProtection(condition)
if err != nil {
return err
}
@ -356,7 +471,7 @@ func PollInfinite(interval time.Duration, condition ConditionFunc) error {
// Some intervals may be missed if the condition takes too long or the time
// window is too short.
func PollImmediateInfinite(interval time.Duration, condition ConditionFunc) error {
done, err := condition()
done, err := runConditionWithCrashProtection(condition)
if err != nil {
return err
}
@ -423,7 +538,7 @@ func WaitFor(wait WaitFunc, fn ConditionFunc, done <-chan struct{}) error {
for {
select {
case _, open := <-c:
ok, err := fn()
ok, err := runConditionWithCrashProtection(fn)
if err != nil {
return err
}
@ -490,15 +605,31 @@ func poller(interval, timeout time.Duration) WaitFunc {
})
}
// resetOrReuseTimer avoids allocating a new timer if one is already in use.
// Not safe for multiple threads.
func resetOrReuseTimer(t *time.Timer, d time.Duration, sawTimeout bool) *time.Timer {
if t == nil {
return time.NewTimer(d)
// ExponentialBackoffWithContext works with a request context and a Backoff. It ensures that the retry wait never
// exceeds the deadline specified by the request context.
func ExponentialBackoffWithContext(ctx context.Context, backoff Backoff, condition ConditionFunc) error {
for backoff.Steps > 0 {
select {
case <-ctx.Done():
return ctx.Err()
default:
}
if ok, err := runConditionWithCrashProtection(condition); err != nil || ok {
return err
}
if backoff.Steps == 1 {
break
}
waitBeforeRetry := backoff.Step()
select {
case <-ctx.Done():
return ctx.Err()
case <-time.After(waitBeforeRetry):
}
}
if !t.Stop() && !sawTimeout {
<-t.C
}
t.Reset(d)
return t
return ErrWaitTimeout
}

37
vendor/k8s.io/apimachinery/pkg/util/yaml/decoder.go generated vendored
View file

@ -26,10 +26,41 @@ import (
"strings"
"unicode"
"k8s.io/klog"
jsonutil "k8s.io/apimachinery/pkg/util/json"
"k8s.io/klog/v2"
"sigs.k8s.io/yaml"
)
// Unmarshal unmarshals the given data
// If v is a *map[string]interface{}, *[]interface{}, or *interface{} numbers
// are converted to int64 or float64
func Unmarshal(data []byte, v interface{}) error {
preserveIntFloat := func(d *json.Decoder) *json.Decoder {
d.UseNumber()
return d
}
switch v := v.(type) {
case *map[string]interface{}:
if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
return err
}
return jsonutil.ConvertMapNumbers(*v, 0)
case *[]interface{}:
if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
return err
}
return jsonutil.ConvertSliceNumbers(*v, 0)
case *interface{}:
if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
return err
}
return jsonutil.ConvertInterfaceNumbers(v, 0)
default:
return yaml.Unmarshal(data, v)
}
}
// ToJSON converts a single YAML document into a JSON document
// or returns an error. If the document appears to be JSON the
// YAML decoding path is not used (so that error messages are
@ -92,6 +123,10 @@ type YAMLDecoder struct {
// the caller in framing the chunk.
func NewDocumentDecoder(r io.ReadCloser) io.ReadCloser {
scanner := bufio.NewScanner(r)
// the size of initial allocation for buffer 4k
buf := make([]byte, 4*1024)
// the maximum size used to buffer a token 5M
scanner.Buffer(buf, 5*1024*1024)
scanner.Split(splitYAMLDocument)
return &YAMLDecoder{
r: r,