Hi, Please tell me how to get health checks to work on a load balancer which is used by Kubernetes. I am running DOs managed Kubernetes service and spawned a Load Balancer service which has created an external load balancer, however when I hit the IP via HTTP I get a 503 gateway. When I check the health statuses of the nodes, they appear down.
Any help would be much appreciated. This is my yml for the service:
apiVersion: v1
kind: Service
metadata:
name: wordpress
labels:
app: wordpress
annotations:
service.beta.kubernetes.io/do-loadbalancer-protocol: "http"
service.beta.kubernetes.io/do-loadbalancer-healthcheck-path: "/health"
spec:
type: LoadBalancer
externalTrafficPolicy: Local
ports:
# the port the service serves on
- port: 80
selector:
app: wordpress
tier: frontend
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Problem solved: After executing kubectl exec -it pod-name-1234 sh, I used top to see Apache wasn’t running in my applications container. After checking the image, I noticed Apache was never going to run as it wasn’t included in the container build. Included Apache, problem solved after applying the new deployment yaml file.