|
| 1 | +name: Terraform CD |
| 2 | + |
| 3 | +on: |
| 4 | + push: |
| 5 | + branches: |
| 6 | + - main |
| 7 | + paths: |
| 8 | + - 'terraform/**' |
| 9 | + - '.github/workflows/cd.yml' |
| 10 | + |
| 11 | + workflow_dispatch: |
| 12 | + inputs: |
| 13 | + plan_only: |
| 14 | + description: 'Run plan only (no apply)' |
| 15 | + required: false |
| 16 | + default: 'false' |
| 17 | + type: choice |
| 18 | + options: |
| 19 | + - 'true' |
| 20 | + - 'false' |
| 21 | + |
| 22 | + destroy: |
| 23 | + description: 'Destroy all infrastructure (DANGEROUS)' |
| 24 | + required: false |
| 25 | + default: 'false' |
| 26 | + type: choice |
| 27 | + options: |
| 28 | + - 'true' |
| 29 | + - 'false' |
| 30 | + |
| 31 | +permissions: |
| 32 | + contents: read |
| 33 | + id-token: write |
| 34 | + issues: write |
| 35 | + |
| 36 | +env: |
| 37 | + AWS_REGION: us-west-2 |
| 38 | + TF_WORKING_DIR: terraform |
| 39 | + TERRAFORM_VERSION: 1.6.0 |
| 40 | + |
| 41 | +jobs: |
| 42 | + terraform-plan: |
| 43 | + name: Plan Infrastructure Changes |
| 44 | + runs-on: ubuntu-latest |
| 45 | + |
| 46 | + environment: |
| 47 | + name: production |
| 48 | + |
| 49 | + defaults: |
| 50 | + run: |
| 51 | + working-directory: ${{ env.TF_WORKING_DIR }} |
| 52 | + |
| 53 | + outputs: |
| 54 | + has_changes: ${{ steps.plan.outputs.exitcode == 2 }} |
| 55 | + |
| 56 | + steps: |
| 57 | + - name: Checkout Code |
| 58 | + uses: actions/checkout@v4 |
| 59 | + |
| 60 | + - name: Configure AWS Credentials |
| 61 | + uses: aws-actions/configure-aws-credentials@v4 |
| 62 | + with: |
| 63 | + aws-access-key-id: ${{ secrets.AWS_SECRET_ACCESS_ID }} |
| 64 | + aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} |
| 65 | + aws-region: ${{ env.AWS_REGION }} |
| 66 | + |
| 67 | + - name: Setup Terraform |
| 68 | + uses: hashicorp/setup-terraform@v3 |
| 69 | + with: |
| 70 | + terraform_version: ${{ env.TERRAFORM_VERSION }} |
| 71 | + terraform_wrapper: false |
| 72 | + |
| 73 | + - name: Terraform Format Check |
| 74 | + run: terraform fmt -check -recursive |
| 75 | + |
| 76 | + - name: Terraform Init |
| 77 | + run: terraform init -upgrade |
| 78 | + |
| 79 | + - name: Terraform Validate |
| 80 | + run: terraform validate |
| 81 | + |
| 82 | + - name: Terraform Plan |
| 83 | + id: plan |
| 84 | + run: | |
| 85 | + terraform plan -detailed-exitcode -out=tfplan -input=false || exit_code=$? |
| 86 | + echo "exitcode=$exit_code" >> $GITHUB_OUTPUT |
| 87 | + terraform show tfplan -no-color |
| 88 | + continue-on-error: true |
| 89 | + |
| 90 | + - name: Upload Plan Artifact |
| 91 | + if: steps.plan.outputs.exitcode == 2 |
| 92 | + uses: actions/upload-artifact@v4 |
| 93 | + with: |
| 94 | + name: terraform-plan-${{ github.sha }} |
| 95 | + path: ${{ env.TF_WORKING_DIR }}/tfplan |
| 96 | + retention-days: 1 |
| 97 | + |
| 98 | + - name: Create Deployment Summary |
| 99 | + if: always() |
| 100 | + run: | |
| 101 | + echo "## Terraform Plan Summary" >> $GITHUB_STEP_SUMMARY |
| 102 | + echo "" >> $GITHUB_STEP_SUMMARY |
| 103 | + echo "- **Workflow:** ${{ github.workflow }}" >> $GITHUB_STEP_SUMMARY |
| 104 | + echo "- **Triggered by:** ${{ github.actor }}" >> $GITHUB_STEP_SUMMARY |
| 105 | + echo "- **Commit:** ${{ github.sha }}" >> $GITHUB_STEP_SUMMARY |
| 106 | + echo "- **Plan Status:** ${{ steps.plan.outcome }}" >> $GITHUB_STEP_SUMMARY |
| 107 | + echo "- **Has Changes:** ${{ steps.plan.outputs.exitcode == 2 }}" >> $GITHUB_STEP_SUMMARY |
| 108 | +
|
| 109 | + terraform-apply: |
| 110 | + name: Apply Infrastructure Changes |
| 111 | + runs-on: ubuntu-latest |
| 112 | + |
| 113 | + needs: terraform-plan |
| 114 | + if: | |
| 115 | + needs.terraform-plan.result == 'success' && |
| 116 | + needs.terraform-plan.outputs.has_changes == 'true' && |
| 117 | + github.event.inputs.plan_only != 'true' |
| 118 | + |
| 119 | + defaults: |
| 120 | + run: |
| 121 | + working-directory: ${{ env.TF_WORKING_DIR }} |
| 122 | + |
| 123 | + steps: |
| 124 | + - name: Checkout Code |
| 125 | + uses: actions/checkout@v4 |
| 126 | + |
| 127 | + - name: Configure AWS Credentials |
| 128 | + uses: aws-actions/configure-aws-credentials@v4 |
| 129 | + with: |
| 130 | + aws-access-key-id: ${{ secrets.AWS_SECRET_ACCESS_ID }} |
| 131 | + aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} |
| 132 | + aws-region: ${{ env.AWS_REGION }} |
| 133 | + |
| 134 | + - name: Setup Terraform |
| 135 | + uses: hashicorp/setup-terraform@v3 |
| 136 | + with: |
| 137 | + terraform_version: ${{ env.TERRAFORM_VERSION }} |
| 138 | + |
| 139 | + - name: Terraform Init |
| 140 | + run: terraform init -upgrade |
| 141 | + |
| 142 | + - name: Download Plan Artifact |
| 143 | + uses: actions/download-artifact@v4 |
| 144 | + with: |
| 145 | + name: terraform-plan-${{ github.sha }} |
| 146 | + path: ${{ env.TF_WORKING_DIR }} |
| 147 | + |
| 148 | + - name: Terraform Apply |
| 149 | + id: apply |
| 150 | + run: | |
| 151 | + echo "Applying Terraform changes..." |
| 152 | + terraform apply -auto-approve -input=false tfplan |
| 153 | + |
| 154 | + - name: Get Terraform Outputs |
| 155 | + id: outputs |
| 156 | + if: steps.apply.outcome == 'success' |
| 157 | + run: | |
| 158 | + echo "instance_id=$(terraform output -raw instance_id)" >> $GITHUB_OUTPUT |
| 159 | + echo "instance_public_ip=$(terraform output -raw instance_public_ip)" >> $GITHUB_OUTPUT |
| 160 | + echo "instance_private_ip=$(terraform output -raw instance_private_ip)" >> $GITHUB_OUTPUT |
| 161 | + |
| 162 | + - name: Create Deployment Summary |
| 163 | + if: always() |
| 164 | + run: | |
| 165 | + echo "## Terraform Apply Summary" >> $GITHUB_STEP_SUMMARY |
| 166 | + echo "" >> $GITHUB_STEP_SUMMARY |
| 167 | + echo "- **Workflow:** ${{ github.workflow }}" >> $GITHUB_STEP_SUMMARY |
| 168 | + echo "- **Triggered by:** ${{ github.actor }}" >> $GITHUB_STEP_SUMMARY |
| 169 | + echo "- **Commit:** ${{ github.sha }}" >> $GITHUB_STEP_SUMMARY |
| 170 | + echo "- **Apply Status:** ${{ steps.apply.outcome }}" >> $GITHUB_STEP_SUMMARY |
| 171 | + |
| 172 | + if [ "${{ steps.apply.outcome }}" == "success" ]; then |
| 173 | + echo "" >> $GITHUB_STEP_SUMMARY |
| 174 | + echo "### EC2 Instance Information" >> $GITHUB_STEP_SUMMARY |
| 175 | + echo "- **Instance ID:** ${{ steps.outputs.outputs.instance_id }}" >> $GITHUB_STEP_SUMMARY |
| 176 | + echo "- **Public IP:** ${{ steps.outputs.outputs.instance_public_ip }}" >> $GITHUB_STEP_SUMMARY |
| 177 | + echo "- **Private IP:** ${{ steps.outputs.outputs.instance_private_ip }}" >> $GITHUB_STEP_SUMMARY |
| 178 | + echo "" >> $GITHUB_STEP_SUMMARY |
| 179 | + echo "### Connect to Instance" >> $GITHUB_STEP_SUMMARY |
| 180 | + echo "\`\`\`bash" >> $GITHUB_STEP_SUMMARY |
| 181 | + echo "ssh -i ~/.ssh/ashish-test-kp.pem ec2-user@${{ steps.outputs.outputs.instance_public_ip }}" >> $GITHUB_STEP_SUMMARY |
| 182 | + echo "\`\`\`" >> $GITHUB_STEP_SUMMARY |
| 183 | + fi |
| 184 | + |
| 185 | + - name: Notify on Failure |
| 186 | + if: failure() |
| 187 | + run: | |
| 188 | + echo "::error::Terraform apply failed. Please check the logs and fix the issues." |
| 189 | +
|
| 190 | + terraform-destroy: |
| 191 | + name: Destroy Infrastructure |
| 192 | + runs-on: ubuntu-latest |
| 193 | + |
| 194 | + if: github.event_name == 'workflow_dispatch' && github.event.inputs.destroy == 'true' |
| 195 | + |
| 196 | + environment: |
| 197 | + name: destroy-production |
| 198 | + |
| 199 | + defaults: |
| 200 | + run: |
| 201 | + working-directory: ${{ env.TF_WORKING_DIR }} |
| 202 | + |
| 203 | + steps: |
| 204 | + - name: Checkout Code |
| 205 | + uses: actions/checkout@v4 |
| 206 | + |
| 207 | + - name: Configure AWS Credentials |
| 208 | + uses: aws-actions/configure-aws-credentials@v4 |
| 209 | + with: |
| 210 | + aws-access-key-id: ${{ secrets.AWS_SECRET_ACCESS_ID }} |
| 211 | + aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} |
| 212 | + aws-region: ${{ env.AWS_REGION }} |
| 213 | + |
| 214 | + - name: Setup Terraform |
| 215 | + uses: hashicorp/setup-terraform@v3 |
| 216 | + with: |
| 217 | + terraform_version: ${{ env.TERRAFORM_VERSION }} |
| 218 | + |
| 219 | + - name: Terraform Init |
| 220 | + run: terraform init -upgrade |
| 221 | + |
| 222 | + - name: Terraform Destroy |
| 223 | + run: | |
| 224 | + echo "Destroying all infrastructure..." |
| 225 | + terraform destroy -auto-approve -input=false |
| 226 | + |
| 227 | + - name: Confirm Destruction |
| 228 | + run: | |
| 229 | + echo "## Infrastructure Destroyed" >> $GITHUB_STEP_SUMMARY |
| 230 | + echo "" >> $GITHUB_STEP_SUMMARY |
| 231 | + echo "All resources have been destroyed." >> $GITHUB_STEP_SUMMARY |
| 232 | + echo "- **Triggered by:** ${{ github.actor }}" >> $GITHUB_STEP_SUMMARY |
| 233 | + echo "- **Timestamp:** $(date)" >> $GITHUB_STEP_SUMMARY |
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