azure-harbor.yml

name: "azure-harbor"

on:
  workflow_call:
    inputs:
      resourceGroupName:
        description: "The name of an existing resource group"
        required: true
        type: string
      email-address:
        description: "An email address to be used as the owner for the public trusted domain certificate vended by Let's Encrypt"
        type: string
        required: true
      domain:
        description: "A domain that the installation of Harbor will be addressable from"
        type: string
        required: true
      action:
        required: true
        description: "Create (new) or destroy (existing)"
        type: string
    secrets:
      AZURE_AD_CLIENT_ID:
        required: true
      AZURE_AD_CLIENT_SECRET:
        required: true
      AZURE_SUBSCRIPTION_ID:
        required: true
      AZURE_AD_TENANT_ID:
        required: true
      TF_BACKEND_RESOURCE_GROUP_NAME:
        required: true
      TF_BACKEND_STORAGE_ACCOUNT_NAME:
        required: true
      TF_BACKEND_STORAGE_CONTAINER_NAME:
        required: true
      KUBECONFIG_CONTENTS:
        required: true
    outputs:
      harbor_domain:
        description: "The domain from which the Harbor instance is addressable"
        value: ${{ jobs.terraform.outputs.harbor_domain }}
      harbor_admin_username:
        description: "The Harbor administrator account's username"
        value: ${{ jobs.terraform.outputs.harbor_admin_username }}
      harbor_admin_password:
        description: "The Harbor administrator account's password"
        value: ${{ jobs.terraform.outputs.harbor_admin_password }}

jobs:
  terraform:
    env:
      ARM_CLIENT_ID: ${{ secrets.AZURE_AD_CLIENT_ID }}
      ARM_CLIENT_SECRET: ${{ secrets.AZURE_AD_CLIENT_SECRET }}
      ARM_SUBSCRIPTION_ID: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
      ARM_TENANT_ID: ${{ secrets.AZURE_AD_TENANT_ID }}
      TF_VAR_acme_email: ${{ inputs.email-address }}
      TF_VAR_domain: ${{ inputs.domain }}
      TF_VAR_kubeconfig_path: "/tmp/.kube/config"
      KUBECONFIG: "/tmp/.kube/config"

    runs-on: ubuntu-22.04

    outputs:
      harbor_domain: ${{ steps.set_outputs.outputs.harbor_domain }}
      harbor_admin_username: ${{ steps.set_outputs.outputs.harbor_admin_username }}
      harbor_admin_password: ${{ steps.set_outputs.outputs.harbor_admin_password }}

    # Use the Bash shell regardless whether the GitHub Actions runner is ubuntu-22.04, macos-latest, or windows-latest
    defaults:
      run:
        shell: bash
        working-directory: terraform/k8s/harbor

    steps:
    # Checkout the repository to the GitHub Actions runner
    - name: Checkout
      uses: actions/checkout@v4

    # Install the latest version of Terraform CLI
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v2
      with:
        terraform_wrapper: false
        terraform_version: 1.5.7

    - name: Generate backend configuration
      run: |
          cp ../../azure/backend/backend.tf .
          echo "resource_group_name = \"${{ secrets.TF_BACKEND_RESOURCE_GROUP_NAME }}\"" > config.azurerm.tfbackend
          echo "storage_account_name = \"${{ secrets.TF_BACKEND_STORAGE_ACCOUNT_NAME }}\"" >> config.azurerm.tfbackend
          echo "container_name = \"${{ secrets.TF_BACKEND_STORAGE_CONTAINER_NAME }}\"" >> config.azurerm.tfbackend
          echo "key = \"${{ inputs.resourceGroupName }}.harbor.tfstate\"" >> config.azurerm.tfbackend

    - name: Install Carvel tools
      run: |
        KAPP_VERSION=0.59.1
        wget -O kapp https://github.com/vmware-tanzu/carvel-kapp/releases/download/v${KAPP_VERSION}/kapp-linux-amd64
        chmod +x kapp
        sudo mv kapp /usr/bin

    - name: Generate .kube/config
      env:
        KUBECONFIG_CONTENTS: ${{ secrets.KUBECONFIG_CONTENTS }}
      run: |
          mkdir -p /tmp/.kube
          echo "$KUBECONFIG_CONTENTS" | base64 -d > /tmp/.kube/config
          chmod 600 /tmp/.kube/config

    # Initialize a new or existing Terraform working directory by creating initial files, loading any remote state, downloading modules, etc.
    - name: Terraform Init
      run: terraform init -upgrade -backend-config=./config.azurerm.tfbackend

    # Checks that all Terraform configuration files adhere to a canonical format
    - name: Terraform Format
      run: terraform fmt -check

    # Generates an execution plan for Terraform
    - name: Terraform Plan
      if: inputs.action == 'create'
      run: terraform plan

    - name: Terraform Apply
      if: inputs.action == 'create'
      run: terraform apply -auto-approve

    - name: Terraform Destroy
      if: inputs.action == 'destroy'
      run: terraform destroy -auto-approve

    - name: Set Outputs
      id: set_outputs
      if: inputs.action == 'create'
      run: |
        harbor_domain=$(terraform output --raw harbor_domain)
        echo "harbor_domain=${harbor_domain}" >> $GITHUB_OUTPUT
        harbor_admin_username=$(terraform output --raw harbor_admin_username)
        echo "harbor_admin_username=${harbor_admin_username}" >> $GITHUB_OUTPUT
        harbor_admin_password=$(terraform output --raw harbor_admin_password)
        echo "harbor_admin_password=${harbor_admin_password}" >> $GITHUB_OUTPUT