devcontainer/serverless/authentik-config.yaml

# Authentik configuration for DevContainer serverless auth
# This assumes Authentik is already deployed in the 'authentik' namespace

---
# Application definition for DevContainer Serverless
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-devcontainer-app-config
  namespace: authentik
data:
  # This will be applied via Authentik API or web interface
  application.yaml: |
    name: DevContainer Serverless
    slug: devcontainer-serverless
    provider: devcontainer-forward-auth-provider
    launch_url: https://devcontainer.farh.net/
    open_in_new_tab: true
    meta_description: "Serverless development containers with dynamic GitHub repository routing"
    meta_publisher: "DevContainer Team"
    policy_engine_mode: "all"
    group: "Development Tools"

---
# Forward Auth Provider configuration
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-devcontainer-provider-config
  namespace: authentik
data:
  provider.yaml: |
    name: devcontainer-forward-auth-provider
    authorization_flow: default-authorization-flow  # Use your default flow
    external_host: https://devcontainer.farh.net

    # Advanced settings
    token_validity: hours=24  # Long-lived sessions for dev work

    # Headers to forward to the application
    # These will be available as HTTP_* environment variables in containers
    property_mappings:
      - "authentik_core.x-authentik-username"
      - "authentik_core.x-authentik-email"
      - "authentik_core.x-authentik-name"
      - "authentik_core.x-authentik-groups"

---
# Outpost configuration for forward auth
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-devcontainer-outpost-config
  namespace: authentik
data:
  outpost.yaml: |
    name: devcontainer-forward-auth-outpost
    type: proxy
    providers:
      - devcontainer-forward-auth-provider

    # Outpost configuration
    config:
      authentik_host: https://auth.farh.net
      authentik_host_insecure: false
      authentik_host_browser: https://auth.farh.net

      # Log level for debugging
      log_level: info

      # Cookie settings
      cookie_domain: .farh.net
      cookie_secure: true

      # NGINX ingress integration
      external_host: https://devcontainer.farh.net
      internal_host: http://authentik.authentik.svc.cluster.local

      # Forward auth specific settings
      mode: forward_single
      skip_path_regex: "^/(health|metrics)$"  # Skip auth for health checks

---
# Example NGINX Ingress annotations for reference
# (These go in the main ingress resource)
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-nginx-annotations
  namespace: devcontainers
data:
  annotations.yaml: |
    # Forward auth configuration
    nginx.ingress.kubernetes.io/auth-url: http://authentik.authentik.svc.cluster.local/outpost.goauthentik.io/auth/nginx
    nginx.ingress.kubernetes.io/auth-signin: https://auth.farh.net/outpost.goauthentik.io/start?rd=$escaped_request_uri
    nginx.ingress.kubernetes.io/auth-response-headers: X-Authentik-Username,X-Authentik-Groups,X-Authentik-Email,X-Authentik-Name
    nginx.ingress.kubernetes.io/auth-snippet: |
      proxy_set_header X-Forwarded-Host $http_host;

    # Additional headers for the application
    nginx.ingress.kubernetes.io/server-snippet: |
      location ~ ^/github/([^/]+/[^/]+) {
        # Log the GitHub repo being accessed
        access_log /var/log/nginx/devcontainer-access.log combined;

        # Set additional headers for audit/monitoring
        proxy_set_header X-GitHub-Repo-Requested https://github.com/$1;
        proxy_set_header X-Request-Timestamp $time_iso8601;
        proxy_set_header X-Client-IP $remote_addr;
      }

---
# Policy for controlling access (optional - can be configured via Authentik UI)
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-devcontainer-policies
  namespace: authentik
data:
  # Example group-based access policy
  group-access-policy.yaml: |
    name: DevContainer Access Policy
    policy_type: group_membership
    groups:
      - developers
      - devops
      - admins

  # Example expression policy for advanced access control
  repo-access-policy.yaml: |
    name: Repository Access Policy
    policy_type: expression
    expression: |
      # Allow access to public repositories for all authenticated users
      # Require specific groups for private repositories

      github_repo = request.http_request.headers.get('X-GitHub-Repo', '')

      # Check if user has access to private repositories
      if 'private-repo-access' in user.ak_groups.values_list('name', flat=True):
          return True

      # For now, allow all authenticated users to access any repository
      # You can customize this based on your needs
      return True

---
# Service Monitor for Prometheus (optional)
apiVersion: v1
kind: ConfigMap
metadata:
  name: authentik-devcontainer-monitoring
  namespace: authentik
data:
  servicemonitor.yaml: |
    apiVersion: monitoring.coreos.com/v1
    kind: ServiceMonitor
    metadata:
      name: devcontainer-authentik
      namespace: authentik
    spec:
      selector:
        matchLabels:
          app.kubernetes.io/name: authentik
      endpoints:
      - port: http
        interval: 30s
        path: /metrics