My app based on express node framework and start with https cert. So does k8s support https liveness probe? Schema is HTTPS. I think the liveness probe is send request via IP address, not domain. So it seems HTTPS schema actually doesn't work.
livenessProbe:
httpGet:
path: /api/alive
port: 8433
scheme: HTTPS
yes, it does. Both "HTTP" and "HTTPS" are supported. see below sample
apiVersion: v1
kind: Pod
metadata:
labels:
test: liveness
name: liveness-http
spec:
containers:
- args:
- /server
image: k8s.gcr.io/liveness
livenessProbe:
httpGet:
# when "host" is not defined, "PodIP" will be used
# host: my-host
# when "scheme" is not defined, "HTTP" scheme will be used. Only "HTTP" and "HTTPS" are allowed
# scheme: HTTPS
path: /healthz
port: 8080
httpHeaders:
- name: X-Custom-Header
value: Awesome
initialDelaySeconds: 15
timeoutSeconds: 1
name: liveness
Note that If scheme field is set to HTTPS, the kubelet sends an HTTPS request to specified path (path: /healthz) and port (port: 8080 ) to perform the check skipping the certificate verification