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feat(k8s): add function for injecting names from hashed data objects (#33)

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Matej Cotman 2023-09-26 05:04:32 +03:00 • committed by Bryton Hall
parent 71cb0a2a47
commit 473fb3ae50
3 changed files with 62 additions and 1 deletions
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42
modules/k8s.nix
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@ -257,6 +257,39 @@ with lib; let
(types.listOf (types.submodule submodule))
(mergeValuesByFn keyFn)
(types.attrsOf (types.submodule submodule));
# inject hashed names for referencing inside modules, example:
# pod = {
# containers.nginx = {
# image = "nginx:1.25.1";
# volumeMounts = {
# "/etc/nginx".name = "config";
# "/var/lib/html".name = "static";
# };
# };
# volumes = {
# config.configMap.name = config.kubernetes.resources.configMaps.nginx-config.metadata.name;
# static.configMap.name = config.kubernetes.resources.configMaps.nginx-static.metadata.name;
# };
# };
optionalHashedNames = object:
if cfg.enableHashedNames then
recursiveUpdate object
(mapAttrs
(ks: v:
if builtins.elem ks [ "configMaps" "secrets" ] then
k8s.injectHashedNames v
else
v
)
object)
else object;
# inject hashed names in the output
optionalHashedNames' = object: kind:
if cfg.enableHashedNames && elem kind [ "ConfigMap" "Secret" ] then
k8s.injectHashedNames object
else object;
in
{
imports = [ ./base.nix ];
@ -319,6 +352,7 @@ in
description = "Alias for `config.kubernetes.api.resources` options";
default = { };
type = types.attrsOf types.attrs;
apply = optionalHashedNames;
};
customTypes = mkOption {
@ -411,6 +445,12 @@ in
description = "Genrated kubernetes YAML file";
type = types.package;
};
enableHashedNames = mkOption {
description = "Enable hashing of resource (ConfigMap,Secret) names";
type = types.bool;
default = false;
};
};
config = {
@ -497,7 +537,7 @@ in
kubernetes.objects = flatten (mapAttrsToList
(_: type:
mapAttrsToList (_name: moduleToAttrs)
cfg.api.resources.${type.group}.${type.version}.${type.kind}
(optionalHashedNames' cfg.api.resources.${type.group}.${type.version}.${type.kind} type.kind)
)
cfg.api.types);