Scale Resource #7
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| name: Terraform plan check | |
| on: | |
| pull_request: | |
| branches: ["main"] | |
| permissions: | |
| id-token: write | |
| contents: read | |
| pull-requests: write | |
| issues: write | |
| env: | |
| ARM_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }} | |
| ARM_SUBSCRIPTION_ID: ${{ secrets.AZURE_SUBSCRIPTION_ID }} | |
| ARM_TENANT_ID: ${{ secrets.AZURE_TENANT_ID }} | |
| ARM_USE_OIDC: true | |
| TF_VAR_subscriptionId: ${{ secrets.AZURE_SUBSCRIPTION_ID }} | |
| TF_VAR_localAdminUser: ${{ secrets.localAdminUser }} | |
| TF_VAR_localAdminPassword: ${{ secrets.localAdminPassword }} | |
| TF_VAR_domainAdminUser: ${{ secrets.domainAdminUser }} | |
| TF_VAR_domainAdminPassword: ${{ secrets.domainAdminPassword }} | |
| TF_VAR_deploymentUserPassword: ${{ secrets.deploymentUserPassword }} | |
| TF_VAR_servicePrincipalId: ${{ secrets.servicePrincipalId }} | |
| TF_VAR_servicePrincipalSecret: ${{ secrets.servicePrincipalSecret }} | |
| TF_VAR_rpServicePrincipalObjectId: ${{ secrets.rpServicePrincipalObjectId }} | |
| TF_VAR_vmAdminPassword: ${{ secrets.vmAdminPassword }} | |
| TF_VAR_domainJoinPassword: ${{ secrets.domainJoinPassword }} | |
| jobs: | |
| provide_paths: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v3 | |
| with: | |
| fetch-depth: 0 | |
| - name: Check diff to see what content is changed | |
| id: check_diff | |
| run: | | |
| ## the || true is to avoid the exit code 1 of grep when no tf files are changed | |
| changedFiles=$(git diff --name-only origin/main HEAD -- | grep ".tf" || true) | |
| if [ -z "$changedFiles" ]; then | |
| echo "No terraform files are changed" | |
| echo "isModuleChanged=false" >> $GITHUB_OUTPUT | |
| echo "planNeeded=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| echo "changedFiles=$changedFiles" | |
| if [[ $changedFiles == *"modules"* ]]; then | |
| echo "changedFiles contain modules" | |
| echo "isModuleChanged=true" >> $GITHUB_OUTPUT | |
| else | |
| echo "changedFiles do not contain modules" | |
| echo "isModuleChanged=false" >> $GITHUB_OUTPUT | |
| fi | |
| ## get changed directories | |
| echo "generate directory based on changed files" | |
| directories=$(echo "$changedFiles" | xargs -n 1 dirname | sort -u | tr '\n' ' ') | |
| echo "directory=$directories" >> $GITHUB_OUTPUT | |
| - name: Set matrix | |
| id: set-matrix | |
| run: | | |
| array=() | |
| if !${{ steps.check_diff.outputs.planNeeded }}; then | |
| echo "No directories to process, no need to plan" | |
| echo "planNeeded=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| if ${{ steps.check_diff.outputs.isModuleChanged }}; then | |
| echo "the module is changed, so generate the matrix based on the stages and sites" | |
| readarray -t stages < ./.stages | |
| for count in "${!stages[@]}"; do | |
| stage=${stages[$count]} | |
| pushd ./$stage > /dev/null | |
| for d in */ ; do | |
| if [[ $d == "*/" ]]; then | |
| break | |
| fi | |
| group=$(echo "$d" | sed 's/\///g' | sed 's/ /_/g') | |
| array+=("$stage/$group") | |
| break | |
| done | |
| popd > /dev/null | |
| done | |
| fi | |
| echo "also generate the matrix based on the changed directories" | |
| IFS=' ' read -ra dirs <<< "${{ steps.check_diff.outputs.directory }}" | |
| for i in "${dirs[@]}"; do | |
| if [[ "$i" != ".azure" && "$i" != *"module"* ]] | |
| then | |
| array+=("$i") | |
| fi | |
| done | |
| if [ ${#array[@]} -eq 0 ]; then | |
| echo "No directories to process" | |
| echo "planNeeded=false" >> $GITHUB_OUTPUT | |
| else | |
| echo "planNeeded=true" >> $GITHUB_OUTPUT | |
| fi | |
| echo "remove duplicates directory and sort" | |
| sorted_array=($(echo "${array[@]}" | tr ' ' '\n' | sort -u | tr '\n' ' ')) | |
| echo "check directories is exist" | |
| checkarray=() | |
| for i in "${sorted_array[@]}"; do | |
| if [ -d "$i" ]; then | |
| checkarray+=("$i") | |
| fi | |
| done | |
| json=$(jq --compact-output --null-input '$ARGS.positional' --args -- "${checkarray[@]}") | |
| echo "matrix=$json" | |
| echo "matrix=$json" >> $GITHUB_OUTPUT | |
| outputs: | |
| matrix: ${{ steps.set-matrix.outputs.matrix }} | |
| planNeeded: ${{ steps.check_diff.outputs.planNeeded }} | |
| terraform_plan_comments: | |
| runs-on: ubuntu-latest | |
| needs: provide_paths | |
| if: needs.provide_paths.outputs.planNeeded != 'false' | |
| strategy: | |
| matrix: | |
| path: ${{fromJson(needs.provide_paths.outputs.matrix)}} | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v3 | |
| - name: Log in to Azure using OIDC | |
| uses: azure/login@v1 | |
| with: | |
| client-id: ${{ secrets.AZURE_CLIENT_ID }} | |
| tenant-id: ${{ secrets.AZURE_TENANT_ID }} | |
| subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }} | |
| # Install node | |
| - uses: actions/setup-node@v4 | |
| with: | |
| node-version: latest | |
| - run: node --version | |
| # Install the latest version of Terraform CLI | |
| - name: Setup Terraform | |
| uses: hashicorp/setup-terraform@v2 | |
| with: | |
| terraform_wrapper: false | |
| # Initialize a new or existing Terraform working directory by creating initial files, loading any remote state, downloading modules, etc. | |
| - name: Terraform Init | |
| id: init | |
| run: terraform init | |
| working-directory: ${{ matrix.path }} | |
| - name: Terraform Fmt | |
| id: fmt | |
| run: terraform fmt -check | |
| working-directory: ${{ matrix.path }} | |
| continue-on-error: true | |
| - name: Terraform Validate | |
| id: validate | |
| run: terraform validate -no-color | |
| working-directory: ${{ matrix.path }} | |
| - run: mkdir -p "${{ runner.temp }}/${{ matrix.path }}" | |
| # Generates an execution plan for Terraform | |
| - name: Terraform Plan | |
| id: plan | |
| run: terraform plan -input=false -lock=false -out "${{ runner.temp }}/${{ matrix.path }}/terraform.plan" | |
| working-directory: ${{ matrix.path }} | |
| - run: terraform show -no-color "${{ runner.temp }}/${{ matrix.path }}/terraform.plan" > "${{ runner.temp }}/${{ matrix.path }}/terraform.text" | |
| working-directory: ${{ matrix.path }} | |
| # generate json output | |
| - run: | | |
| # this is a known issue for ahmadnassri/action-terraform-report when plan result is no change | |
| terraform show -json ${{ runner.temp }}/${{ matrix.path }}/terraform.plan > ${{ runner.temp }}/${{ matrix.path }}/tf-temp.json | |
| # check if the .resource_changes is null in the tf.plan file and if it is, | |
| # add an empty array to the json file else don't do anything. | |
| if [ "$(jq '.resource_changes' ${{ runner.temp }}/${{ matrix.path }}/tf-temp.json)" == "null" ]; then | |
| echo "resource_changes is null" | |
| jq --argjson to_add '{"resource_changes":[]}' '. * $to_add' ${{ runner.temp }}/${{ matrix.path }}/tf-temp.json > ${{ runner.temp }}/${{ matrix.path }}/terraform.json | |
| else | |
| echo "resource_changes is not null" | |
| cp ${{ runner.temp }}/${{ matrix.path }}/tf-temp.json ${{ runner.temp }}/${{ matrix.path }}/terraform.json | |
| fi | |
| working-directory: ${{ matrix.path }} | |
| if: steps.plan.outcome == 'success' | |
| - name: Update Pull Request | |
| uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const output = `#### Terraform plan run for \`${{ matrix.path }}\` | |
| #### Terraform Initialization 🤖\`${{ steps.init.outcome }}\` | |
| #### Terraform Format and Style 🖌\`${{ steps.fmt.outcome }}\` | |
| #### You can run terraform fmt to fix the formatting issues | |
| #### Terraform Validation 🤖\`${{ steps.validate.outcome }}\` | |
| #### Terraform Plan 🤖\`${{ steps.plan.outcome }}\` | |
| *Pushed by: @${{ github.actor }}, Action: \`${{ github.event_name }}\`*`; | |
| github.rest.issues.createComment({ | |
| issue_number: context.issue.number, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| body: output | |
| }) | |
| if: always() | |
| - uses: ahmadnassri/action-terraform-report@v3 | |
| with: | |
| # tell the action the plan outputs | |
| terraform-text: ${{ runner.temp }}/${{ matrix.path }}/terraform.text | |
| terraform-json: ${{ runner.temp }}/${{ matrix.path }}/terraform.json | |
| remove-stale-reports: false | |
| if: steps.plan.outcome == 'success' | |
| - name: Terraform Plan Status | |
| if: steps.plan.outcome == 'failure' | |
| run: exit 1 | |