apiVersion: v1
kind: ConfigMap
metadata:
  name: tcp-services
  namespace: ingress-nginx
data:
  "5432": "database/postgres:5432"

# ─── Manual one-time steps after applying this ConfigMap ─────────────────────
#
# 1. Expose port 5432 on the ingress-nginx-controller Service:
#
#    kubectl patch svc ingress-nginx-controller -n ingress-nginx \
#      --type='json' \
#      -p='[{"op":"add","path":"/spec/ports/-","value":{"name":"postgres","port":5432,"targetPort":5432,"protocol":"TCP"}}]'
#
# 2. Add --tcp-services-configmap arg to the ingress-nginx-controller Deployment:
#
#    kubectl patch deployment ingress-nginx-controller -n ingress-nginx \
#      --type='json' \
#      -p='[{"op":"add","path":"/spec/template/spec/containers/0/args/-","value":"--tcp-services-configmap=ingress-nginx/tcp-services"}]'
#
# 3. Add to /etc/hosts on your host machine:
#
#    192.168.49.2  postgres.local
#
# ─────────────────────────────────────────────────────────────────────────────