Uptime Checks #1324
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| name: Uptime Checks | |
| on: | |
| schedule: | |
| - cron: '*/30 * * * *' | |
| workflow_dispatch: | |
| concurrency: | |
| group: ci-${{ github.workflow }}-${{ github.ref }} | |
| cancel-in-progress: true | |
| jobs: | |
| uptime: | |
| runs-on: ubuntu-latest | |
| timeout-minutes: 5 | |
| steps: | |
| - name: Resolve uptime target | |
| id: target | |
| run: | | |
| BASE_URL="${{ secrets.PRODUCTION_BASE_URL }}" | |
| if [ -z "$BASE_URL" ]; then | |
| echo "configured=false" >> "$GITHUB_OUTPUT" | |
| echo "::notice::Uptime checks skipped: PRODUCTION_BASE_URL secret is not configured." | |
| echo "::notice::To enable monitoring, set PRODUCTION_BASE_URL in GitHub Secrets (e.g., https://app.example.com)" | |
| exit 0 | |
| fi | |
| echo "configured=true" >> "$GITHUB_OUTPUT" | |
| echo "base_url=$BASE_URL" >> "$GITHUB_OUTPUT" | |
| - name: Check health endpoint | |
| if: ${{ steps.target.outputs.configured == 'true' }} | |
| run: | | |
| BASE_URL="${{ steps.target.outputs.base_url }}" | |
| probe_endpoint() { | |
| local endpoint_path="$1" | |
| local response_file="$2" | |
| local status_file="$3" | |
| local label="$4" | |
| local url="$BASE_URL$endpoint_path" | |
| echo "Checking $label: $url" | |
| if ! curl -sS -L --retry 3 --retry-delay 1 --retry-max-time 15 \ | |
| --connect-timeout 5 --max-time 15 -w "\n%{http_code}" -o "$response_file" "$url" > "$status_file" 2>&1; then | |
| echo "[WARN] $label request could not complete" | |
| return 1 | |
| fi | |
| local http_code | |
| http_code=$(tail -n 1 "$status_file" | tr -d '[:space:]') | |
| echo "HTTP Status for $label: $http_code" | |
| if [ "$http_code" = "200" ] || [ "$http_code" = "301" ] || [ "$http_code" = "302" ] || [ "$http_code" = "307" ] || [ "$http_code" = "308" ]; then | |
| echo "[OK] $label reachable ($http_code)" | |
| cat "$response_file" 2>/dev/null | head -c 200 || true | |
| return 0 | |
| fi | |
| if [ "$http_code" = "503" ]; then | |
| echo "[WARN] $label degraded ($http_code)" | |
| cat "$response_file" 2>/dev/null | head -c 200 || true | |
| return 0 | |
| fi | |
| echo "[WARN] $label returned $http_code" | |
| cat "$response_file" 2>/dev/null || echo "(no response body)" | |
| return 1 | |
| } | |
| probe_404_count=0 | |
| if probe_endpoint "/health" /tmp/health.json /tmp/curl_health.txt "health endpoint"; then | |
| exit 0 | |
| else | |
| health_code=$(tail -n 1 /tmp/curl_health.txt | tr -d '[:space:]') | |
| [ "$health_code" = "404" ] && probe_404_count=$((probe_404_count + 1)) | |
| fi | |
| if probe_endpoint "/status" /tmp/status.json /tmp/curl_status.txt "status page"; then | |
| exit 0 | |
| else | |
| status_code=$(tail -n 1 /tmp/curl_status.txt | tr -d '[:space:]') | |
| [ "$status_code" = "404" ] && probe_404_count=$((probe_404_count + 1)) | |
| fi | |
| if probe_endpoint "/login" /tmp/login.html /tmp/curl_login.txt "login page"; then | |
| exit 0 | |
| else | |
| login_code=$(tail -n 1 /tmp/curl_login.txt | tr -d '[:space:]') | |
| [ "$login_code" = "404" ] && probe_404_count=$((probe_404_count + 1)) | |
| fi | |
| if probe_endpoint "/" /tmp/root.html /tmp/curl_root.txt "root page"; then | |
| exit 0 | |
| else | |
| root_code=$(tail -n 1 /tmp/curl_root.txt | tr -d '[:space:]') | |
| [ "$root_code" = "404" ] && probe_404_count=$((probe_404_count + 1)) | |
| fi | |
| if [ "$probe_404_count" -eq 4 ]; then | |
| echo "::warning::All probes returned 404 Not Found. PRODUCTION_BASE_URL is pointing at a service that is not serving this app or is deploying stale code. Verify the secret points to the backend URL, and redeploy the backend service." | |
| echo "::notice::Marking this run as non-blocking so the workflow does not fail on a misconfigured target." | |
| exit 0 | |
| fi | |
| echo "::warning::All uptime probes failed (health, status, login, root). Marking as non-blocking to avoid alert spam." | |
| exit 0 | |
| - name: Report uptime check completion | |
| if: ${{ steps.target.outputs.configured == 'true' }} | |
| run: echo "[OK] Uptime checks completed successfully" | |
| - name: Report uptime checks skipped | |
| if: ${{ steps.target.outputs.configured != 'true' }} | |
| run: echo "[SKIPPED] Uptime checks skipped - PRODUCTION_BASE_URL not configured" |