Ready-to-use Kubernetes folder 05.02.2025

Ready-to-use Kubernetes folder with all manifests for your backend, frontend, and optional Ollama service, fully configured for HTTPS via cert-manager. You will just need to replace Docker Hub images and your email/domain.

Here’s the structure:

k8s/
├── namespace.yaml
├── clusterissuer.yaml
├── backend-deployment.yaml
├── frontend-deployment.yaml
├── ollama-deployment.yaml
├── ingress.yaml

---

1️⃣ namespace.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: ollama-chat

---

2️⃣ clusterissuer.yaml

Replace your-email@domain.com with your email.

apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-prod
spec:
  acme:
    email: your-email@domain.com
    server: https://acme-v02.api.letsencrypt.org/directory
    privateKeySecretRef:
      name: letsencrypt-prod
    solvers:
      - http01:
          ingress:
            class: nginx

---

3️⃣ backend-deployment.yaml

Replace yourhubusername/ollama-backend:latest with your Docker Hub backend image.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ollama-backend
  namespace: ollama-chat
spec:
  replicas: 2
  selector:
    matchLabels:
      app: ollama-backend
  template:
    metadata:
      labels:
        app: ollama-backend
    spec:
      containers:
        - name: backend
          image: yourhubusername/ollama-backend:latest
          imagePullPolicy: Always
          ports:
            - containerPort: 8000
          env:
            - name: OLLAMA_HOST
              value: "http://ollama:11434"
---
apiVersion: v1
kind: Service
metadata:
  name: ollama-backend
  namespace: ollama-chat
spec:
  selector:
    app: ollama-backend
  ports:
    - protocol: TCP
      port: 8000
      targetPort: 8000
  type: ClusterIP

---

4️⃣ frontend-deployment.yaml

Replace yourhubusername/ollama-frontend:latest with your Docker Hub frontend image.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ollama-frontend
  namespace: ollama-chat
spec:
  replicas: 2
  selector:
    matchLabels:
      app: ollama-frontend
  template:
    metadata:
      labels:
        app: ollama-frontend
    spec:
      containers:
        - name: frontend
          image: yourhubusername/ollama-frontend:latest
          imagePullPolicy: Always
          ports:
            - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: ollama-frontend
  namespace: ollama-chat
spec:
  selector:
    app: ollama-frontend
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: ClusterIP

---

5️⃣ ollama-deployment.yaml (optional)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ollama
  namespace: ollama-chat
spec:
  replicas: 1
  selector:
    matchLabels:
      app: ollama
  template:
    metadata:
      labels:
        app: ollama
    spec:
      containers:
        - name: ollama
          image: ollama/ollama:latest
          ports:
            - containerPort: 11434
---
apiVersion: v1
kind: Service
metadata:
  name: ollama
  namespace: ollama-chat
spec:
  selector:
    app: ollama
  ports:
    - protocol: TCP
      port: 11434
      targetPort: 11434
  type: ClusterIP

---

6️⃣ ingress.yaml

Replace immai.acintia.com with your domain.

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ollama-ingress
  namespace: ollama-chat
  annotations:
    kubernetes.io/ingress.class: nginx
    cert-manager.io/cluster-issuer: letsencrypt-prod
spec:
  tls:
    - hosts:
        - immai.acintia.com
      secretName: ollama-tls
  rules:
    - host: immai.acintia.com
      http:
        paths:
          - path: /api/
            pathType: Prefix
            backend:
              service:
                name: ollama-backend
                port:
                  number: 8000
          - path: /
            pathType: Prefix
            backend:
              service:
                name: ollama-frontend
                port:
                  number: 80

---

7️⃣ Deployment Instructions

Step 1: Apply namespace

kubectl apply -f k8s/namespace.yaml

Step 2: Apply cert-manager ClusterIssuer

kubectl apply -f k8s/clusterissuer.yaml

Step 3: Deploy backend, frontend, and Ollama

kubectl apply -f k8s/backend-deployment.yaml
kubectl apply -f k8s/frontend-deployment.yaml
kubectl apply -f k8s/ollama-deployment.yaml   # optional

Step 4: Deploy Ingress

kubectl apply -f k8s/ingress.yaml

Step 5: Verify resources

kubectl get pods -n ollama-chat
kubectl get svc -n ollama-chat
kubectl get ingress -n ollama-chat

Step 6: Access services

• Frontend → https://immai.acintia.com/

• Backend API → https://immai.acintia.com/api/

TLS is automatically handled by cert-manager.

---

✅ With this setup:

• You can run your backend, frontend, and Ollama in any Kubernetes cluster.

• Certificates auto-renew with cert-manager.

• Services are scalable by adjusting replicas.

• Ingress routes traffic securely over HTTPS.