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https://gitlab.com/TECHNOFAB/coder-templates.git
synced 2026-02-02 11:25:05 +01:00
chore: add initial nix-kubernetes template
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parent
6bd319fbe9
commit
7cd71e7537
8 changed files with 425 additions and 2 deletions
42
nix-kubernetes/coder.nix
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42
nix-kubernetes/coder.nix
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{...}: {
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locals."git_repo_folder" = let
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split_repo = ''split("/", data.coder_parameter.git_repo.value)'';
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in ''try(element(${split_repo}, length(${split_repo}) - 1), "")'';
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data = {
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coder_external_auth."gitlab" = {
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id = "gitlab";
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optional = false;
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};
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coder_workspace."me" = {};
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};
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resource = {
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coder_agent."coder" = {
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arch = "\${var.arch}";
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os = "linux";
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};
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coder_script."git_clone" = {
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agent_id = "\${coder_agent.coder.id}";
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display_name = "Git Clone";
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icon = "/icon/git.svg";
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script = let
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repo = ''''${data.coder_parameter.git_repo.value}'';
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repo_folder = ''''${local.git_repo_folder}'';
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in ''
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#!/usr/bin/env bash
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set -eux
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echo "Cloning repo \"${repo}\" if it does not exist"
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mkdir -p ~/repos
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pushd ~/repos
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if [[ ! -z "${repo}" && ! -d "${repo_folder}" ]] then
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git clone ${repo} ${repo_folder}
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fi
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popd
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'';
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run_on_start = true;
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start_blocks_login = true;
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};
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};
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}
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24
nix-kubernetes/default.nix
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24
nix-kubernetes/default.nix
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{...}: {
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imports = [
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./parameters.nix
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./variables.nix
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./coder.nix
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./kubernetes.nix
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];
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terraform.required_providers = {
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coder = {
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source = "coder/coder";
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version = "0.21.0";
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};
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kubernetes = {
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source = "hashicorp/kubernetes";
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version = "2.29.0";
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};
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};
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provider = {
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coder = {};
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kubernetes = {};
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};
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}
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130
nix-kubernetes/kubernetes.nix
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130
nix-kubernetes/kubernetes.nix
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{...}: {
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resource = {
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kubernetes_pod."workspace" = {
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count = "\${data.coder_workspace.me.start_count}";
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metadata = {
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name = "coder-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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namespace = "\${var.namespace}";
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annotations."com.coder.user.email" = "\${data.coder_workspace.me.owner_email}";
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labels = {
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"app.kubernetes.io/instance" = "coder-workspace-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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"app.kubernetes.io/name" = "coder-workspace";
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"app.kubernetes.io/part-of" = "coder";
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"com.coder.resource" = "true";
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"com.coder.user.id" = "\${data.coder_workspace.me.owner_id}";
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"com.coder.user.name" = "\${data.coder_workspace.me.owner}";
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"com.coder.workspace.id" = "\${data.coder_workspace.me.id}";
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"com.coder.workspace.name" = "\${data.coder_workspace.me.name}";
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};
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};
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spec = {
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affinity.pod_anti_affinity.preferred_during_scheduling_ignored_during_execution = {
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weight = 1;
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pod_affinity_term = {
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topology_key = "kubernetes.io/hostname";
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label_selector.match_expressions = {
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key = "app.kubernetes.io/name";
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operator = "In";
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values = ["coder-workspace"];
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};
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};
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};
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container = [
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{
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name = "workspace";
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image = "registry.gitlab.com/technofab/coder-templates/coder-workspace:\${data.coder_parameter.image_tag.value}";
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command = ["/bin/sh" "-c" "\${resource.coder_agent.coder.init_script}"];
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env = [
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{
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name = "CODER_AGENT_TOKEN";
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value = "\${resource.coder_agent.coder.token}";
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}
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];
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resources = {
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requests = {
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# TODO: allow configuring this via variables (template wide)
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cpu = "250m";
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memory = "512Mi";
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};
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limits = {
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cpu = "\${data.coder_parameter.cpu.value}";
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memory = "\${data.coder_parameter.memory.value}";
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};
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};
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security_context.run_as_user = "1000";
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volume_mount = [
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{
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mount_path = "/home";
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name = "home";
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read_only = false;
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}
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{
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mount_path = "/nix";
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name = "nix-store";
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read_only = false;
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}
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];
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}
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];
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security_context = {
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fs_group = "1000";
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run_as_user = "1000";
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};
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volume = [
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{
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name = "home";
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persistent_volume_claim.claim_name = "\${resource.kubernetes_persistent_volume_claim.home.metadata.0.name}";
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}
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{
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name = "nix-store";
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persistent_volume_claim.claim_name = "\${resource.kubernetes_persistent_volume_claim.nix-store.metadata.0.name}";
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}
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];
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};
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};
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kubernetes_persistent_volume_claim."home" = {
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metadata = {
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name = "coder-home-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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namespace = "\${var.namespace}";
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annotations."com.coder.user.email" = "\${data.coder_workspace.me.owner_email}";
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labels = {
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"app.kubernetes.io/instance" = "coder-pvc-home-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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"app.kubernetes.io/name" = "coder-pvc";
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"app.kubernetes.io/part-of" = "coder";
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"com.coder.resource" = "true";
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"com.coder.user.id" = "\${data.coder_workspace.me.owner_id}";
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"com.coder.user.name" = "\${data.coder_workspace.me.owner}";
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"com.coder.workspace.id" = "\${data.coder_workspace.me.id}";
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"com.coder.workspace.name" = "\${data.coder_workspace.me.name}";
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};
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};
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spec = {
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access_modes = ["ReadWriteOnce"];
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resources.requests.storage = "\${data.coder_parameter.home_disk_size.value}Gi";
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};
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wait_until_bound = false;
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};
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kubernetes_persistent_volume_claim."nix-store" = {
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metadata = {
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name = "coder-nix-store-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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namespace = "\${var.namespace}";
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annotations."com.coder.user.email" = "\${data.coder_workspace.me.owner_email}";
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labels = {
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"app.kubernetes.io/instance" = "coder-pvc-nix-store-\${lower(data.coder_workspace.me.owner)}-\${lower(data.coder_workspace.me.name)}";
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"app.kubernetes.io/name" = "coder-pvc";
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"app.kubernetes.io/part-of" = "coder";
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"com.coder.resource" = "true";
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"com.coder.user.id" = "\${data.coder_workspace.me.owner_id}";
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"com.coder.user.name" = "\${data.coder_workspace.me.owner}";
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"com.coder.workspace.id" = "\${data.coder_workspace.me.id}";
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"com.coder.workspace.name" = "\${data.coder_workspace.me.name}";
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};
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};
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spec = {
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access_modes = ["ReadWriteOnce"];
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resources.requests.storage = "\${data.coder_parameter.nix_store_disk_size.value}Gi";
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};
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wait_until_bound = false;
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};
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};
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}
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78
nix-kubernetes/parameters.nix
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78
nix-kubernetes/parameters.nix
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{...}: {
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data.coder_parameter = {
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git_repo = {
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name = "Git Repository";
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description = ''
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URI for a git repository which should automatically be cloned to ~/repos/<name>
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'';
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default = "";
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order = 1;
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type = "string";
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mutable = true;
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};
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image_tag = {
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name = "Image Tag";
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description = ''
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Which container image tag should be used.
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'';
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default = "latest";
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order = 2;
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type = "string";
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mutable = true;
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};
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cpu = {
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name = "CPU";
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description = ''
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CPU Limit for Kubernetes Pod. Kubernetes Notation (eg. 500m)
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'';
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default = "500m";
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order = 3;
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type = "string";
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mutable = true;
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};
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memory = {
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name = "Memory";
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description = ''
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Memory Limit for Kubernetes Pod. Kubernetes Notation (eg. 1Gi)
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'';
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default = "1Gi";
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order = 4;
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type = "string";
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mutable = true;
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};
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home_disk_size = {
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name = "Home Disk Size";
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description = ''
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Size for the /home PV in GB
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'';
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default = 5;
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order = 5;
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type = "number";
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mutable = true;
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validation = [
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{
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min = 1;
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max = 100;
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monotonic = "increasing";
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}
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];
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};
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nix_store_disk_size = {
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name = "Nix Store Disk Size";
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description = ''
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Size for the /nix PV in GB. This might grow pretty big.
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'';
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default = 5;
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order = 6;
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type = "number";
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mutable = true;
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validation = [
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{
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min = 1;
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max = 100;
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monotonic = "increasing";
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}
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];
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};
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};
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}
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16
nix-kubernetes/variables.nix
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16
nix-kubernetes/variables.nix
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{...}: {
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variable = {
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namespace = {
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type = "string";
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description = "Kubernetes namespace (must exist prior to creating workspaces)";
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};
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arch = {
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type = "string";
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description = "Architecture of the host";
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validation = {
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condition = ''''${contains(["amd64", "arm64"], var.arch)}'';
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error_message = "Invalid architecture selected";
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};
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};
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};
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}
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