only trigger terraform when code is changed (#23) #67
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| name: Deploy | |
| permissions: | |
| id-token: write | |
| contents: read | |
| on: | |
| push: | |
| paths: | |
| - 'tf/**' | |
| - '.github/workflows/deploy.yml' | |
| branches: | |
| - main | |
| pull_request: | |
| paths: | |
| - 'tf/**' | |
| - '.github/workflows/deploy.yml' | |
| branches: | |
| - main | |
| jobs: | |
| plan: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read | |
| id-token: write | |
| pull-requests: write | |
| outputs: | |
| exitcode: ${{ steps.plan.outputs.exitcode }} | |
| steps: | |
| - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1 | |
| - uses: DeterminateSystems/nix-installer-action@cd46bde16ab981b0a7b2dce0574509104543276e # v9 | |
| - uses: DeterminateSystems/magic-nix-cache-action@8a218f9e264e9c3803c9a1ee1c30d8e4ab55be63 # v2 | |
| - uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1 | |
| with: | |
| role-to-assume: arn:aws:iam::686862074153:role/plan | |
| aws-region: eu-central-1 | |
| - name: init | |
| run: | | |
| cd tf | |
| nix shell --inputs-from . nixpkgs#opentofu --command ./tofu-init.sh | |
| - name: plan | |
| id: plan | |
| run: | | |
| cd tf | |
| set +e | |
| nix shell --inputs-from . nixpkgs#opentofu --command tofu plan -detailed-exitcode -out tfplan | |
| export exitcode=$? | |
| set -e | |
| echo "exitcode=$exitcode" >> "$GITHUB_OUTPUT" | |
| if [ $exitcode -eq 1 ]; then | |
| exit 1 | |
| else | |
| exit 0 | |
| fi | |
| - name: publish plan | |
| uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 # v4 | |
| with: | |
| name: tfplan | |
| path: tf/tfplan | |
| - name: Create String Output | |
| id: tf-plan-string | |
| run: | | |
| cd tf | |
| TERRAFORM_PLAN=$(nix shell --inputs-from . nixpkgs#opentofu --command tofu show -no-color tfplan) | |
| delimiter="$(openssl rand -hex 8)" | |
| echo "summary<<${delimiter}" >> $GITHUB_OUTPUT | |
| echo "## Plan Output" >> $GITHUB_OUTPUT | |
| echo "<details><summary>Click to expand</summary>" >> $GITHUB_OUTPUT | |
| echo "" >> $GITHUB_OUTPUT | |
| echo '```terraform' >> $GITHUB_OUTPUT | |
| echo "$TERRAFORM_PLAN" >> $GITHUB_OUTPUT | |
| echo '```' >> $GITHUB_OUTPUT | |
| echo "</details>" >> $GITHUB_OUTPUT | |
| echo "${delimiter}" >> $GITHUB_OUTPUT | |
| - name: Publish Terraform Plan to Task Summary | |
| env: | |
| SUMMARY: ${{ steps.tf-plan-string.outputs.summary }} | |
| run: | | |
| echo "$SUMMARY" >> $GITHUB_STEP_SUMMARY | |
| apply: | |
| runs-on: ubuntu-latest | |
| needs: [plan] | |
| environment: infra | |
| if: github.ref == 'refs/heads/main' && needs.plan.outputs.exitcode == 2 | |
| steps: | |
| - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1 | |
| - uses: DeterminateSystems/nix-installer-action@cd46bde16ab981b0a7b2dce0574509104543276e # v9 | |
| - uses: DeterminateSystems/magic-nix-cache-action@8a218f9e264e9c3803c9a1ee1c30d8e4ab55be63 # v2 | |
| - uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1 | |
| with: | |
| role-to-assume: arn:aws:iam::686862074153:role/deploy | |
| aws-region: eu-central-1 | |
| - name: download plan | |
| uses: actions/download-artifact@7a1cd3216ca9260cd8022db641d960b1db4d1be4 # v4 | |
| with: | |
| name: tfplan | |
| path: tf | |
| - name: init | |
| run: | | |
| cd tf | |
| nix shell --inputs-from . nixpkgs#opentofu --command ./tofu-init.sh | |
| - name: apply | |
| run: | | |
| cd tf | |
| nix shell --inputs-from . nixpkgs#opentofu --command tofu apply -auto-approve tfplan | |