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Commitca3c049

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chore: k8s example persistence & coder images (#3619)
* add: persistence & coder images* add: code-server* chore: README updates* chore: README example
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‎examples/templates/kubernetes-multi-service/main.tf

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‎examples/templates/kubernetes-multi-service/README.mdrenamed to‎examples/templates/kubernetes-pod/README.md

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Then start the Coder host with `serviceAccountName:coder` in the pod spec.
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## Namespace
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The target namespace in which the pod will be deployed is defined via the `coder_workspace`
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variable. The namespace must exist prior to creating workspaces.
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## Persistence
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The `/home/coder` directory in this example is persisted via the attached PersistentVolumeClaim.
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Any data saved outside of this directory will be wiped when the workspace stops.
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Since most binary installations and environment configurations live outside of
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the `/home` directory, we suggest including these in the `startup_script` argument
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of the `coder_agent` resource block, which will run each time the workspace starts up.
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For example, when installing the `aws` CLI, the install script will place the
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`aws`binary in `/usr/local/bin/aws`. To ensure the `aws` CLI is persisted across
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workspace starts/stops, include the following code in the `coder_agent` resource
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block of your workspace template:
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```terraform
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resource "coder_agent" "main" {
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startup_script = <<EOT
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#!/bin/bash
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# install AWS CLI
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curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
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unzip awscliv2.zip
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sudo ./aws/install
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EOT
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}
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```
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## code-server
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`code-server`is installed via the `startup_script` argument in the `coder_agent`
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resource block. The `coder_app` resource is defined to access `code-server` through
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the dashboard UI over `localhost:13337`.
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terraform {
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required_providers {
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coder={
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source="coder/coder"
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version="0.4.9"
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}
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kubernetes={
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source="hashicorp/kubernetes"
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version="~> 2.12.1"
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}
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}
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}
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variable"use_kubeconfig" {
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type=bool
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sensitive=true
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description=<<-EOF
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Use host kubeconfig? (true/false)
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Set this to false if the Coder host is itself running as a Pod on the same
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Kubernetes cluster as you are deploying workspaces to.
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Set this to true if the Coder host is running outside the Kubernetes cluster
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for workspaces. A valid "~/.kube/config" must be present on the Coder host.
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EOF
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}
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variable"coder_namespace" {
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type=string
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sensitive=true
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description="The namespace to create workspaces in (must exist prior to creating workspaces)"
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default="coder-namespace"
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}
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variable"disk_size" {
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type=number
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description="Disk size (__ GB)"
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default=10
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}
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provider"kubernetes" {
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# Authenticate via ~/.kube/config or a Coder-specific ServiceAccount, depending on admin preferences
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config_path=var.use_kubeconfig==true?"~/.kube/config":null
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}
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data"coder_workspace""me" {}
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resource"coder_agent""main" {
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os="linux"
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arch="amd64"
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startup_script=<<EOT
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#!/bin/bash
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# install and start code-server
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curl -fsSL https://code-server.dev/install.sh | sh | tee code-server-install.log
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code-server --auth none --port 13337 | tee code-server-install.log &
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EOT
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}
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# code-server
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resource"coder_app""code-server" {
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agent_id=coder_agent.main.id
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name="code-server"
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icon="/icon/code.svg"
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url="http://localhost:13337?folder=/home/coder"
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relative_path=true
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}
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resource"kubernetes_pod""main" {
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count=data.coder_workspace.me.start_count
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metadata {
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name="coder-${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}"
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namespace=var.coder_namespace
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}
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spec {
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security_context {
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run_as_user="1000"
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fs_group="1000"
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}
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container {
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name="dev"
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image="codercom/enterprise-base:ubuntu"
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command=["sh","-c",coder_agent.main.init_script]
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security_context {
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run_as_user="1000"
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}
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env {
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name="CODER_AGENT_TOKEN"
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value=coder_agent.main.token
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}
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volume_mount {
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mount_path="/home/coder"
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name="home-directory"
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}
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}
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volume {
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name="home-directory"
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persistent_volume_claim {
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claim_name=kubernetes_persistent_volume_claim.home-directory.metadata.0.name
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}
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}
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}
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}
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resource"kubernetes_persistent_volume_claim""home-directory" {
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metadata {
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name="home-coder-java-${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}"
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namespace=var.coder_namespace
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}
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spec {
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access_modes=["ReadWriteOnce"]
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resources {
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requests={
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storage="${var.disk_size}Gi"
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}
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}
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}
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}

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