How to return 200 for health checks

Question

Google Cloud GCP Will NOT forward to Ingress that does not pass health checks. Could anyone share how exactly to configure Traefik Ingress to pass health checks? I think it needs to return a 200 on /health or something like that. But what would exact configuration look like? I am starting traefik using arguments rather than toml file. Thanks. 304 not accepted. Must be 200 I think.

UPDATE: Here is my deployment. I think this correct but looking at the logs I am getting:

[29/Jun/2019:16:21:44 +0000] “GET /health HTTP/1.1” 404 19 “-” “kube-probe/1.13+” 4 “backend not found” “/health” 0ms How do I setup to return the 200?

kind: Deployment
apiVersion: apps/v1
metadata:
name: traefik-ingress-controller
labels:
k8s-app: traefik-ingress-controller
spec:
replicas: 2
selector:
matchLabels:
k8s-app: traefik-ingress-controller
template:
metadata:
labels:
k8s-app: traefik-ingress-controller
name: traefik-ingress-controller
spec:
serviceAccountName: traefik-ingress-serviceaccount
terminationGracePeriodSeconds: 35
containers:
- image: traefik
name: traefik-ingress-controller
imagePullPolicy: Always
resources:
limits:
cpu: 200m
memory: 384Mi
requests:
cpu: 25m
memory: 128Mi
livenessProbe:
failureThreshold: 2
httpGet:
path: /health
port: 80
scheme: HTTP
initialDelaySeconds: 10
periodSeconds: 5
readinessProbe:
failureThreshold: 2
httpGet:
path: /health
port: 80
scheme: HTTP
periodSeconds: 5
ports:
- name: http
containerPort: 80
- name: https
containerPort: 443
- name: dashboard
containerPort: 8080
args:
- --logLevel=DEBUG
- --api
- --api.dashboard=true
- --kubernetes
- --accesslog=true

Answer 1

With Traefik the ping definition can be utilized to add a health check endpoint to Traefik. Use it like this:

defaultEntryPoints = ["http"]

[entryPoints]
  [entryPoints.http]
  address = ":80"

[ping]
entryPoint = "http"

It will add

A simple endpoint to check for Traefik process liveness. Return a code 200 with the content: OK