I am working on fixing some errors in an existing Kubernetes multi-container one pod deployment. I have part of it fixed; I just am missing the syntax to route the traffic from the 'frontend' container to the 'backend' one.
The YAML file:
apiVersion: apps/v1 kind: Deployment metadata: name: minikube-hello-world labels: app: hello-world spec: replicas: 1 selector: matchLabels: app: hello-world template: metadata: labels: app: hello-world spec: containers: - name: hello-world-frontend image: frontend:latest imagePullPolicy: Never ports: - containerPort: 80 - name: hello-world-backend image: backend:latest imagePullPolicy: Never ports: - containerPort: 80 --- kind: Service apiVersion: v1 metadata: name: hello-world-service spec: selector: app: hello-world ports: - protocol: TCP port: 80 targetPort: 80 nodePort: 31443 type: LoadBalancer
When I run minikube service hello-world-service I get the web page itself, but the backend service doesn't connect correctly, Nginx instead showing a 502 Bad Gateway error.
I've drilled down into the Kubenetes documentation and I've tried hostPort various places but I still don't have it right.
Any help would be much appreciated!