fix(ci): use custom terraform-ci container image

- Use gitea.arnodo.fr/damien/terraform-ci:latest (Terraform 1.5.7 + TFLint)
- Remove setup-terraform and setup-tflint actions (already in image)
- Replace actions/github-script with curl + Gitea API for PR comments
- Use gitea.* context variables instead of github.*
- Fix plan exit code handling (0=no changes, 2=changes, 1=error)

Refs #3

.gitea/workflows/terraform.yml

@@ -29,28 +29,18 @@ jobs:
   validate:
     name: Validate
     runs-on: self-hosted
+    container:
+      image: gitea.arnodo.fr/damien/terraform-ci:latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Terraform
-        uses: hashicorp/setup-terraform@v3
-        with:
-          terraform_version: "1.9"
-
-      - name: Setup TFLint
-        uses: terraform-linters/setup-tflint@v4
-
       - name: Terraform Format Check
         id: fmt
         run: terraform fmt -check -recursive -diff
         working-directory: ${{ env.TF_WORKING_DIR }}
         continue-on-error: true
 
-      - name: TFLint Init
-        run: tflint --init
-        working-directory: ${{ env.TF_WORKING_DIR }}
-
       - name: TFLint
         id: lint
         run: tflint --recursive --format compact
@@ -89,6 +79,8 @@ jobs:
   plan:
     name: Plan
     runs-on: self-hosted
+    container:
+      image: gitea.arnodo.fr/damien/terraform-ci:latest
     needs: validate
     outputs:
       plan_exitcode: ${{ steps.plan.outputs.exitcode }}
@@ -96,11 +88,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Terraform
-        uses: hashicorp/setup-terraform@v3
-        with:
-          terraform_version: "1.9"
-
       - name: Terraform Init
         run: terraform init -input=false
         working-directory: ${{ env.TF_WORKING_DIR }}
@@ -108,16 +95,24 @@ jobs:
       - name: Terraform Plan
         id: plan
         run: |
+          set +e
           terraform plan -input=false -no-color -detailed-exitcode -out=tfplan 2>&1 | tee plan_output.txt
-          echo "exitcode=$?" >> $GITHUB_OUTPUT
+          EXITCODE=$?
+          echo "exitcode=${EXITCODE}" >> $GITHUB_OUTPUT
+          # Exit 0 for no changes, exit 2 for changes - both are OK
+          if [ $EXITCODE -eq 1 ]; then
+            exit 1
+          fi
+          exit 0
         working-directory: ${{ env.TF_WORKING_DIR }}
-        continue-on-error: true
 
       - name: Upload Plan
         uses: actions/upload-artifact@v4
         with:
           name: tfplan
-          path: ${{ env.TF_WORKING_DIR }}/tfplan
+          path: |
+            ${{ env.TF_WORKING_DIR }}/tfplan
+            ${{ env.TF_WORKING_DIR }}/plan_output.txt
           retention-days: 7
 
       - name: Plan Summary
@@ -125,81 +120,74 @@ jobs:
         run: |
           echo "## Terraform Plan" >> $GITHUB_STEP_SUMMARY
           echo "" >> $GITHUB_STEP_SUMMARY
+          echo "**Exit code:** \`${{ steps.plan.outputs.exitcode }}\`" >> $GITHUB_STEP_SUMMARY
+          echo "- \`0\` = No changes" >> $GITHUB_STEP_SUMMARY
+          echo "- \`2\` = Changes detected" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
           echo '```' >> $GITHUB_STEP_SUMMARY
           cat plan_output.txt >> $GITHUB_STEP_SUMMARY
           echo '```' >> $GITHUB_STEP_SUMMARY
         working-directory: ${{ env.TF_WORKING_DIR }}
 
       - name: Comment PR with Plan
-        if: github.event_name == 'pull_request'
+        if: gitea.event_name == 'pull_request'
-        uses: actions/github-script@v7
+        env:
-        with:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
-          script: |
+        run: |
-            const fs = require('fs');
+          PLAN_OUTPUT=$(cat plan_output.txt | head -c 60000)
-            const plan = fs.readFileSync('${{ env.TF_WORKING_DIR }}/plan_output.txt', 'utf8');
+          COMMENT_BODY=$(cat <<EOF
-            const maxLength = 60000;
+          ## 🔍 Terraform Plan
-            const truncated = plan.length > maxLength 
-              ? plan.substring(0, maxLength) + '\n... (truncated)'
-              : plan;
           
-            const body = `## 🔍 Terraform Plan
+          **Exit code:** \`${{ steps.plan.outputs.exitcode }}\`
+          - \`0\` = No changes
+          - \`2\` = Changes detected
           
-            <details>
+          <details>
-            <summary>Click to expand</summary>
+          <summary>Click to expand plan output</summary>
           
-            \`\`\`hcl
+          \`\`\`hcl
-            ${truncated}
+          ${PLAN_OUTPUT}
-            \`\`\`
+          \`\`\`
           
-            </details>
+          </details>
+          EOF
+          )
           
-            **Exit code:** \`${{ steps.plan.outputs.exitcode }}\`
+          # Post comment via Gitea API
-            - \`0\` = No changes
+          curl -s -X POST \
-            - \`1\` = Error
+            -H "Authorization: token ${GITEA_TOKEN}" \
-            - \`2\` = Changes detected
+            -H "Content-Type: application/json" \
-            `;
+            -d "$(jq -n --arg body "$COMMENT_BODY" '{body: $body}')" \
-            
+            "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/issues/${{ gitea.event.pull_request.number }}/comments"
-            github.rest.issues.createComment({
+        working-directory: ${{ env.TF_WORKING_DIR }}
-              issue_number: context.issue.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: body
-            });
-
-      - name: Check Plan Status
-        if: steps.plan.outputs.exitcode == '1'
-        run: exit 1
 
   # ===========================================================================
-  # Apply - Runs on push to dev OR after PR merge
+  # Apply - Runs on push to dev only (when changes detected)
   # ===========================================================================
   apply:
     name: Apply
     runs-on: self-hosted
+    container:
+      image: gitea.arnodo.fr/damien/terraform-ci:latest
     needs: plan
     if: |
-      (github.event_name == 'push' && github.ref == 'refs/heads/dev') &&
+      gitea.event_name == 'push' && 
+      gitea.ref == 'refs/heads/dev' &&
       needs.plan.outputs.plan_exitcode == '2'
-    environment: production
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Terraform
-        uses: hashicorp/setup-terraform@v3
-        with:
-          terraform_version: "1.9"
-
-      - name: Terraform Init
-        run: terraform init -input=false
-        working-directory: ${{ env.TF_WORKING_DIR }}
-
       - name: Download Plan
         uses: actions/download-artifact@v4
         with:
           name: tfplan
           path: ${{ env.TF_WORKING_DIR }}
 
+      - name: Terraform Init
+        run: terraform init -input=false
+        working-directory: ${{ env.TF_WORKING_DIR }}
+
       - name: Terraform Apply
         run: terraform apply -input=false -auto-approve tfplan
         working-directory: ${{ env.TF_WORKING_DIR }}