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77 changes: 77 additions & 0 deletionsexamples/kubernetes-multi-service/README.md
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| --- | ||
| name:Develop multiple services in Kubernetes | ||
| description:Get started with Kubernetes development. | ||
| tags:[cloud, kubernetes] | ||
| --- | ||
| #Authentication | ||
| This template has several ways to authenticate to a Kubernetes cluster. | ||
| ##kubeconfig (Coder host) | ||
| If the Coder host has a local`~/.kube/config`, this can be used to authenticate with Coder. Make sure this is on the same user running the`coder` service. | ||
| ##ServiceAccount | ||
| Create a ServiceAccount and role on your cluster to authenticate your template with Coder. | ||
| 1. Run the following command on a device with Kubernetes context: | ||
| ```sh | ||
| CODER_NAMESPACE=default | ||
| kubectl apply -n$CODER_NAMESPACE -f -<<EOF | ||
| apiVersion: v1 | ||
| kind: ServiceAccount | ||
| metadata: | ||
| name: coder | ||
| --- | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: Role | ||
| metadata: | ||
| name: coder | ||
| rules: | ||
| - apiGroups: ["", "apps", "networking.k8s.io"] # "" indicates the core API group | ||
| resources: ["persistentvolumeclaims", "pods", "deployments", "services", "secrets", "pods/exec","pods/log", "events", "networkpolicies", "serviceaccounts"] | ||
| verbs: ["create", "get", "list", "watch", "update", "patch", "delete", "deletecollection"] | ||
| - apiGroups: ["metrics.k8s.io", "storage.k8s.io"] | ||
| resources: ["pods", "storageclasses"] | ||
| verbs: ["get", "list", "watch"] | ||
| --- | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: RoleBinding | ||
| metadata: | ||
| name: coder | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: coder | ||
| roleRef: | ||
| kind: Role | ||
| name: coder | ||
| apiGroup: rbac.authorization.k8s.io | ||
| EOF | ||
| ``` | ||
| 1. Use the following commands to fetch the values: | ||
| **Cluster IP:** | ||
| ```sh | ||
| kubectl cluster-info | grep "control plane" | ||
| ``` | ||
| **CA certificate** | ||
| ```sh | ||
| kubectl get secrets -n$CODER_NAMESPACE -o jsonpath="{.items[?(@.metadata.annotations['kubernetes\.io/service-account\.name']=='coder')].data['ca\.crt']}{'\n'}" | ||
| ``` | ||
| **Token** | ||
| ```sh | ||
| kubectl get secrets -n$CODER_NAMESPACE -o jsonpath="{.items[?(@.metadata.annotations['kubernetes\.io/service-account\.name']=='coder')].data['token']}{'\n'}" | ||
| ``` | ||
| **Namespace** | ||
| This should be the same as`$CODER_NAMESPACE`,setin step 1. |
132 changes: 132 additions & 0 deletionsexamples/kubernetes-multi-service/main.tf
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| terraform { | ||
| required_providers { | ||
| coder={ | ||
| source="coder/coder" | ||
| version="~> 0.3.1" | ||
| } | ||
| kubernetes={ | ||
| source="hashicorp/kubernetes" | ||
| version="~> 2.10" | ||
| } | ||
| } | ||
| } | ||
| variable"step1_use_kubeconfig" { | ||
| type=bool | ||
| sensitive=true | ||
| description="Use local ~/.kube/config? (true/false)" | ||
| } | ||
| variable"step2_cluster_host" { | ||
| type=string | ||
| sensitive=true | ||
| description=<<-EOF | ||
| Hint: You can use: | ||
| $ kubectl cluster-info | grep "control plane" | ||
| Leave blank if using ~/.kube/config (from step 1) | ||
| EOF | ||
| } | ||
| variable"step3_certificate" { | ||
| type=string | ||
| sensitive=true | ||
| description=<<-EOF | ||
| Use docs at https://github.com/coder/coder/tree/main/examples/kubernetes-multi-service#serviceaccount to create a ServiceAccount for Coder and grab values. | ||
| Enter CA certificate | ||
| Leave blank if using ~/.kube/config (from step 1) | ||
| EOF | ||
| } | ||
| variable"step4_token" { | ||
| type=string | ||
| sensitive=true | ||
| description=<<-EOF | ||
| Enter token (refer to docs at https://github.com/coder/coder/tree/main/examples/kubernetes-multi-service#serviceaccount) | ||
| Leave blank if using ~/.kube/config (from step 1) | ||
| EOF | ||
| } | ||
| variable"step5_coder_namespace" { | ||
| type=string | ||
| sensitive=true | ||
| description=<<-EOF | ||
| Enter namespace (refer to docs at https://github.com/coder/coder/tree/main/examples/kubernetes-multi-service#serviceaccount) | ||
| Leave blank if using ~/.kube/config (from step 1) | ||
| EOF | ||
| } | ||
| provider"kubernetes" { | ||
| # Authenticate via ~/.kube/config or a Coder-specific ServiceAccount, depending on admin preferences | ||
| config_path=var.step1_use_kubeconfig==true?"~/.kube/config":null | ||
| host=var.step1_use_kubeconfig==false? var.step2_cluster_host:null | ||
| cluster_ca_certificate=var.step1_use_kubeconfig==false?base64decode(var.step3_certificate):null | ||
| token=var.step1_use_kubeconfig==false?base64decode(var.step4_token):null | ||
| } | ||
| data"coder_workspace""me" {} | ||
| resource"coder_agent""go" { | ||
| os="linux" | ||
| arch="amd64" | ||
| } | ||
| resource"coder_agent""java" { | ||
| os="linux" | ||
| arch="amd64" | ||
| } | ||
| resource"coder_agent""ubuntu" { | ||
| os="linux" | ||
| arch="amd64" | ||
| } | ||
| resource"kubernetes_pod""main" { | ||
| count=data.coder_workspace.me.start_count | ||
| metadata { | ||
| name="coder-${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}" | ||
| } | ||
| spec { | ||
| container { | ||
| name="go" | ||
| image="mcr.microsoft.com/vscode/devcontainers/go:1" | ||
| command=["sh","-c",coder_agent.go.init_script] | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others.Learn more. I've noticed all of these containers bring you to strange locations when you ssh in for the first time go: Should the init script always do something like There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others.Learn more. It will in my other PR now! | ||
| security_context { | ||
| run_as_user="1000" | ||
| } | ||
| env { | ||
| name="CODER_AGENT_TOKEN" | ||
| value=coder_agent.go.token | ||
| } | ||
| } | ||
| container { | ||
| name="java" | ||
| image="mcr.microsoft.com/vscode/devcontainers/java" | ||
| command=["sh","-c",coder_agent.java.init_script] | ||
| security_context { | ||
| run_as_user="1000" | ||
| } | ||
| env { | ||
| name="CODER_AGENT_TOKEN" | ||
| value=coder_agent.java.token | ||
| } | ||
| } | ||
| container { | ||
| name="ubuntu" | ||
| image="mcr.microsoft.com/vscode/devcontainers/base:ubuntu" | ||
| command=["sh","-c",coder_agent.ubuntu.init_script] | ||
| security_context { | ||
| run_as_user="1000" | ||
| } | ||
| env { | ||
| name="CODER_AGENT_TOKEN" | ||
| value=coder_agent.ubuntu.token | ||
| } | ||
| } | ||
| } | ||
| } | ||
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