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homelab-frontend/k8s/network-policy.yaml
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fix(network): allow poimen namespace to access api-gateway
Enable Poimen orchestrator and worker pods to reach the LLM API gateway
in the api namespace.

The api-gateway NetworkPolicy was only allowing traffic from:
- ingress-nginx (external ingress)
- monitoring (Prometheus scraping)

Added new ingress rule to allow:
- poimen namespace (orchestrator-job and worker pods)
- Port 8080 (api-gateway service port)

This fixes the DNS resolution error where orchestrator pods couldn't
reach http://api-gateway.api:8080/health from within the cluster.

Managed via ArgoCD in homelab/k8s/argocd/apps/55-api-gateway.yaml
which syncs from this repo's k8s/ directory.
2026-08-31 14:59:29 -07:00

80 lines
1.8 KiB
YAML

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: api-gateway
namespace: api
labels:
app: api-gateway
spec:
podSelector:
matchLabels:
app: api-gateway
policyTypes:
- Ingress
- Egress
ingress:
# Allow from ingress-nginx controller (from ingress-nginx namespace)
- from:
- namespaceSelector:
matchLabels:
name: ingress-nginx
ports:
- protocol: TCP
port: 8080
# Allow from Prometheus scraping (if in monitoring namespace)
- from:
- namespaceSelector:
matchLabels:
name: monitoring
ports:
- protocol: TCP
port: 8080
# Allow from poimen namespace (orchestrator & worker pods)
# Enable Poimen workflows to call the LLM API gateway
- from:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: poimen
ports:
- protocol: TCP
port: 8080
egress:
# Allow DNS
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: kube-system
ports:
- protocol: UDP
port: 53
- protocol: TCP
port: 53
# Allow to upstreams (LLM services in llm-serving namespace)
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: llm-serving
ports:
- protocol: TCP
port: 80
- protocol: TCP
port: 8000
- protocol: TCP
port: 8001
# Allow to other upstreams if needed (embeddings, reranker, etc.)
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: llm-serving
ports:
- protocol: TCP
port: 8080
# Allow to atlas (riotpiao-backend) for /cluster/* routes
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: atlas
ports:
- protocol: TCP
port: 8080