mongo-express/mongo-express-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mongo-express
  namespace: mongo-express
  labels:
    app: mongo-express
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mongo-express
  template:
    metadata:
      labels:
        app: mongo-express
    spec:
      containers:
      - name: mongo-express
        image: mongo-express
        ports:
        - containerPort: 8081
        env:
        # 1. Fuerza a Mongo Express a ignorar su lógica interna de construcción
        - name: ME_CONFIG_MONGODB_URL
          value: "mongodb://mongo-mongodb-headless.overleaf.svc.cluster.local:27017/sharelatex?authSource=admin"

        # 2. Obligatorio: Pon el "SERVER" apuntando exactamente a la misma dirección 
        # para resolver un bug de herencia de variables en Kubernetes.
        - name: ME_CONFIG_MONGODB_SERVER
          value: "mongo-mongodb-headless.overleaf.svc.cluster.local"
                # 1. OBLIGATORIO en versiones nuevas: Activa explícitamente el BasicAuth
        - name: ME_CONFIG_BASICAUTH
          value: "true"

        # 2. Configura tu usuario y contraseña personalizados
        - name: ME_CONFIG_BASICAUTH_USERNAME
          valueFrom:
            secretKeyRef:
              name: mongodb-secret
              key: mongo-root-username
        - name: ME_CONFIG_BASICAUTH_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mongodb-secret
              key: mongo-root-password
---
apiVersion: v1
kind: Service
metadata:
  name: mongo-express-service
  namespace: mongo-express
spec:
  selector:
    app: mongo-express
  type: NodePort
  ports:
    - protocol: TCP
      port: 8081
      targetPort: 8081
      nodePort: 30000