Reverse proxy + Jumpbox

jumppod.yaml

# Test with Bitnami chart. helm install psql --set auth.postgresPassword=postgres oci://registry-1.docker.io/bitnamicharts/postgresql

apiVersion: v1
kind: ConfigMap
metadata:
  name: rp-jb-nginx
data:
  nginx.conf: |
    events {}
    http {
      server {
        listen 80;

        location /healthcheck {
          return 200;
        }
      }
    }

    stream {
      server {
        listen     8000;
        proxy_connect_timeout 60s;
        proxy_socket_keepalive on;
        proxy_pass psql-postgresql:5432;
      }
    }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: rp-jb-nginx
  labels:
    app: rp-jb-nginx
spec:
  selector:
    matchLabels:
      app: rp-jb-nginx
  replicas: 1
  template:
    metadata:
      labels:
        app: rp-jb-nginx
    spec:
      containers:
        - name: nginx
          image: nginx:alpine
          ports:
            - containerPort: 80
            - containerPort: 8000
          livenessProbe:
            httpGet:
              path: /healthcheck
              port: 80
          volumeMounts:
            - name: nginx-config
              mountPath: /etc/nginx/nginx.conf
              subPath: nginx.conf
      volumes:
        - name: nginx-config
          configMap:
            name: rp-jb-nginx
---
kind: Service
apiVersion: v1
metadata:
  name: rp-jb-nginx
spec:
  selector:
    app: rp-jb-nginx
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      name: rp-jb-nginx
    - protocol: TCP
      port: 8000
      targetPort: 8000
      name: psql-db