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HeadlessX Deployment Notes

This service runs the modular HeadlessX browserless API behind the internal gateway. The manifests live in k8s/applications/web/headlessx and stay aligned with the original docker-compose configuration.

Build and Image​

  • The Dockerfile at images/headlessx/Dockerfile builds HeadlessX from source using the upstream repository at https://github.com/saifyxpro/HeadlessX.
  • The build uses a three-stage Dockerfile pattern matching the official HeadlessX Dockerfile:
    1. Source stage: Clones the HeadlessX repository at the specified version
    2. Website builder stage: Builds the HeadlessX web interface for production
    3. Runtime stage: Uses the official Playwright base image (mcr.microsoft.com/playwright:v1.56.0-noble) with all browser dependencies pre-installed
  • The CI workflow in .github/workflows/image-build.yaml automatically builds and pushes the image to ghcr.io/theepicsaxguy/headlessx:1.2.0 when changes are made to the Dockerfile.
  • The runtime image includes a HEALTHCHECK that probes /api/health every 30 seconds.

Namespace​

  • Namespace: headlessx. No extra quota or limit range is defined here—reuse the cluster defaults.

Configuration and Secrets​

  • Runtime knobs (PORT, NODE_ENV, UV_THREADPOOL_SIZE, NODE_OPTIONS) are set directly on the Deployment.
  • AUTH_TOKEN comes from es-headlessx-auth-token, which pulls app-headlessx-auth-token out of Bitwarden through External Secrets.

Storage Layout​

  • Logs persist to headlessx-logs, a 10Gi Longhorn-backed PVC mounted at /app/logs.
  • /tmp uses an emptyDir to mimic the compose bind mount.

Deployment Highlights​

  • Single replica Deployment with requests set to 1 CPU / 1Gi and limits to 4 CPU / 4Gi.
  • Probes hit GET /api/health on port 3000 with a 15s initial delay, 30s period, and 10s timeout.
  • Pod security: runAsNonRoot, runAsUser/runAsGroup 1000, default seccomp, no privilege escalation, and all capabilities dropped.

Networking​

  • Service headlessx exposes port 3000 internally.
  • HTTPRoute binds headlessx.pc-tips.se to the internal Gateway and forwards all paths to the Service.
  • NetworkPolicy only permits ingress from namespaces labeled name=gateway, and limits egress to DNS plus outbound HTTP/HTTPS.
  • Publish headlessx.pc-tips.se inside the private DNS zone so the Gateway’s internal address resolves for callers.

Verification Checklist​

  1. Wait for the Deployment to become Available and confirm probes stay green.
  2. kubectl port-forward or exec into the pod and curl http://localhost:3000/api/health → HTTP 200.
  3. Resolve headlessx.pc-tips.se from an internal network and curl through the Gateway → HTTP 200.
  4. Inspect /app/logs to verify log files reach the PVC. Tune retention or ship to centralized logging before the volume fills.