Can not change timezone for kubernetes pod - docker

Question

I am trying to modify the config file of a pod to use local time, but it show invalid when saving. Do you know what's wrong ?
In volumeMounts section: I added below lines:
- mountPath: /etc/localtime
name: tz-config
In volumes setion: I added below lines:
- name: tz-config
hostPath:
path: /usr/share/zoneinfo/Asia/Ho_Chi_Minh
Here is my yaml file:
apiVersion: v1
kind: Pod
metadata:
.....
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: default-token-jgznd
readOnly: true
- mountPath: /etc/localtime
name: tz-config
dnsPolicy: ClusterFirst
.....
volumes:
- name: default-token-jgznd
secret:
defaultMode: 420
secretName: default-token-jgznd
- name: tz-config
hostPath:
path: /usr/share/zoneinfo/Asia/Ho_Chi_Minh
UPDATE: Below are error detail
# pods "hello-75fdf45c64-w7xm8" was not valid:
# * spec: Forbidden: pod updates may not change fields other than `spec.containers[*].image`, `spec.initContainers[*].image`, `spec.activeDeadlineSeconds` or `spec.tolerations` (only additions to existing tolerations)
# core.PodSpec{
# Volumes: []core.Volume{
# {Name: "default-token-wcf8m", VolumeSource: core.VolumeSource{Secret: &core.SecretVolumeSource{SecretName: "default-token-wcf8m", DefaultMode: &420}}},
# - {
# - Name: "tz-config",
# - VolumeSource: core.VolumeSource{
# - HostPath: &core.HostPathVolumeSource{Path: "/usr/share/zoneinfo/Asia/Ho_Chi_Minh", Type: &""},
# - },
# - },
# },
# InitContainers: nil,

Answer 1

I resolved my problem by adding mountPath to the file deployment yaml as below. Many thanks #Shawlz for help:
apiVersion: apps/v1
kind: Deployment
metadata:
annotations:
deployment.kubernetes.io/revision: "1"
creationTimestamp: "2020-02-14T15:59:50Z"
generation: 1
labels:
run: hello
name: hello
namespace: default
resourceVersion: "523908"
selfLink: /apis/apps/v1/namespaces/default/deployments/hello
uid: 43196302-0176-4ce2-9d10-c8fefcc6c316
spec:
progressDeadlineSeconds: 600
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
run: hello
strategy:
rollingUpdate:
maxSurge: 25%
maxUnavailable: 25%
type: RollingUpdate
template:
metadata:
creationTimestamp: null
labels:
run: hello
spec:
containers:
- image: hello-microservice
imagePullPolicy: Never
name: hello
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- name: tz-config
mountPath: /etc/localtime
volumes:
- name: tz-config
hostPath:
path: /usr/share/zoneinfo/Asia/Ho_Chi_Minh
dnsPolicy: ClusterFirst
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}