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coder/docs/tutorials/testing-templates.md
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# Test and Publish Coder Templates Through CI/CD
<div>
<a href="https://github.com/matifali" style="text-decoration: none; color: inherit;">
<span style="vertical-align:middle;">Muhammad Atif Ali</span>
<img src="https://github.com/matifali.png" alt="matifali" width="24px" height="24px" style="vertical-align:middle; margin: 0px;"/>
</a>
</div>
November 15, 2024
---
## Overview
This guide demonstrates how to test and publish Coder templates in a Continuous
Integration (CI) pipeline using the
[coder/setup-action](https://github.com/coder/setup-coder). This workflow
ensures your templates are validated, tested, and promoted seamlessly.
## Prerequisites
- Install and configure Coder CLI in your environment.
- Install Terraform CLI in your CI environment.
- Create a [headless user](../admin/users/headless-auth.md) with the
[user roles and permissions](../admin/users/groups-roles.md#roles) to manage
templates and run workspaces.
## Creating the headless user
```shell
coder users create \
--username machine-user \
--email machine-user@example.com \
--login-type none
coder tokens create --user machine-user --lifetime 8760h
# Copy the token and store it in a secret in your CI environment with the name `CODER_SESSION_TOKEN`
```
## Example GitHub Action Workflow
This example workflow tests and publishes a template using GitHub Actions.
The workflow:
1. Validates the Terraform template.
1. Pushes the template to Coder without activating it.
1. Tests the template by creating a workspace.
1. Promotes the template version to active upon successful workspace creation.
### Workflow File
Save the following workflow file as `.github/workflows/publish-template.yaml` in
your repository:
```yaml
name: Test and Publish Coder Template
on:
push:
branches:
- main
workflow_dispatch:
jobs:
test-and-publish:
runs-on: ubuntu-latest
env:
TEMPLATE_NAME: "my-template"
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Set up Terraform
uses: hashicorp/setup-terraform@v2
with:
terraform_version: latest
- name: Set up Coder CLI
uses: coder/setup-action@v1
with:
access_url: "https://coder.example.com"
coder_session_token: ${{ secrets.CODER_SESSION_TOKEN }}
- name: Validate Terraform template
run: terraform validate
- name: Get short commit SHA to use as template version name
id: name
run: echo "version_name=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
- name: Get latest commit title to use as template version description
id: message
run:
echo "pr_title=$(git log --format=%s -n 1 ${{ github.sha }})" >>
$GITHUB_OUTPUT
- name: Push template to Coder
run: |
coder templates push $TEMPLATE_NAME --activate=false --name ${{ steps.name.outputs.version_name }} --message "${{ steps.message.outputs.pr_title }}" --yes
- name: Create a test workspace and run some example commands
run: |
coder create -t $TEMPLATE_NAME --template-version ${{ steps.name.outputs.version_name }} test-${{ steps.name.outputs.version_name }} --yes
coder config-ssh --yes
# run some example commands
coder ssh test-${{ steps.name.outputs.version_name }} -- make build
- name: Delete the test workspace
if: always()
run: coder delete test-${{ steps.name.outputs.version_name }} --yes
- name: Promote template version
if: success()
run: |
coder template version promote --template=$TEMPLATE_NAME --template-version=${{ steps.name.outputs.version_name }} --yes
```