homelab/k8s/infra/forgejo-runner/templates/networkpolicy.yaml

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: {{ .Release.Name }}-egress
  namespace: {{ .Release.Namespace }}
spec:
  podSelector:
    matchLabels:
      app: {{ .Release.Name }}
  policyTypes: [Egress]
  egress:
    # Forgejo — same cicd namespace (git push, registry push/pull)
    - to:
        - podSelector: {}
    # CoreDNS
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
      ports:
        - protocol: UDP
          port: 53
        - protocol: TCP
          port: 53
    # Internet (action deps, base images) — never LAN or pod network
    - to:
        - ipBlock:
            cidr: 0.0.0.0/0
            except:
              - 192.168.1.0/24
              - 10.244.0.0/16
    # Single LAN exception: the ingress-nginx LoadBalancer, which is how
    # forgejo.riotpiao.com resolves. Image pushes go to that name so the tag
    # matches what containerd pulls on the nodes; without this the whole /24 is
    # denied above and `docker push` hangs until it times out.
    - to:
        - ipBlock:
            cidr: {{ .Values.egress.ingressLoadBalancerIP }}/32
      ports:
        - protocol: TCP
          port: 443