Docker Compose to Kubernetes Manifest Converter (Compose to K8s)

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: db-data-pvc
  namespace: default
  labels:
    app.kubernetes.io/name: db-data
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: frontend
  namespace: default
  labels:
    app: frontend
    app.kubernetes.io/name: frontend
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  replicas: 2
  selector:
    matchLabels:
      app: frontend
  template:
    metadata:
      labels:
        app: frontend
        app.kubernetes.io/name: frontend
    spec:
      containers:
        - name: frontend
          image: node:20-alpine
          imagePullPolicy: IfNotPresent
          args:
            - npm
            - start
          workingDir: /app
          ports:
            - name: port-3000
              containerPort: 3000
              protocol: TCP
          env:
            - name: NODE_ENV
              value: production
            - name: API_URL
              value: http://backend:4000
          resources:
            limits:
              cpu: "1"
              memory: 1024Mi
            requests:
              cpu: 200m
              memory: 256Mi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: backend
  namespace: default
  labels:
    app: backend
    app.kubernetes.io/name: backend
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  replicas: 2
  selector:
    matchLabels:
      app: backend
  template:
    metadata:
      labels:
        app: backend
        app.kubernetes.io/name: backend
    spec:
      containers:
        - name: backend
          image: node:20-alpine
          imagePullPolicy: IfNotPresent
          args:
            - node
            - dist/index.js
          workingDir: /app
          ports:
            - name: port-4000
              containerPort: 4000
              protocol: TCP
          env:
            - name: PORT
              value: "4000"
            - name: DATABASE_URL
              value: postgres://user:password@postgres:5432/appdb
            - name: REDIS_URL
              value: redis://redis:6379
          livenessProbe:
            exec:
              command:
                - curl
                - -f
                - http://localhost:4000/health
            initialDelaySeconds: 10
            periodSeconds: 30
            timeoutSeconds: 5
            failureThreshold: 3
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: default
  labels:
    app: postgres
    app.kubernetes.io/name: postgres
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
        app.kubernetes.io/name: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:16-alpine
          imagePullPolicy: IfNotPresent
          ports:
            - name: port-5432
              containerPort: 5432
              protocol: TCP
          env:
            - name: POSTGRES_DB
              value: appdb
            - name: POSTGRES_USER
              value: user
            - name: POSTGRES_PASSWORD
              value: secretpassword123
          volumeMounts:
            - name: db-data
              mountPath: /var/lib/postgresql/data
      volumes:
        - name: db-data
          persistentVolumeClaim:
            claimName: db-data-pvc
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis
  namespace: default
  labels:
    app: redis
    app.kubernetes.io/name: redis
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
        app.kubernetes.io/name: redis
    spec:
      containers:
        - name: redis
          image: redis:7-alpine
          imagePullPolicy: IfNotPresent
          ports:
            - name: port-6379
              containerPort: 6379
              protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  name: frontend
  namespace: default
  labels:
    app: frontend
    app.kubernetes.io/name: frontend
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  type: ClusterIP
  selector:
    app: frontend
  ports:
    - name: port-3000
      protocol: TCP
      port: 3000
      targetPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: backend
  namespace: default
  labels:
    app: backend
    app.kubernetes.io/name: backend
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  type: ClusterIP
  selector:
    app: backend
  ports:
    - name: port-4000
      protocol: TCP
      port: 4000
      targetPort: 4000
---
apiVersion: v1
kind: Service
metadata:
  name: postgres
  namespace: default
  labels:
    app: postgres
    app.kubernetes.io/name: postgres
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  type: ClusterIP
  selector:
    app: postgres
  ports:
    - name: port-5432
      protocol: TCP
      port: 5432
      targetPort: 5432
---
apiVersion: v1
kind: Service
metadata:
  name: redis
  namespace: default
  labels:
    app: redis
    app.kubernetes.io/name: redis
    app.kubernetes.io/managed-by: compose-to-k8s
spec:
  type: ClusterIP
  selector:
    app: redis
  ports:
    - name: port-6379
      protocol: TCP
      port: 6379
      targetPort: 6379
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: frontend-ingress
  namespace: default
  annotations:
    kubernetes.io/ingress.class: nginx
spec:
  rules:
    - http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: frontend
                port:
                  number: 3000
          - path: /backend
            pathType: Prefix
            backend:
              service:
                name: backend
                port:
                  number: 4000