https://juejin.cn/s/k8s定时重启pod
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: my-cronjob
spec:
schedule: "0 1 * * *"
jobTemplate:
spec:
template:
spec:
containers:
- name: my-container
image: my-image
restartPolicy: OnFailure
metadata:
name: my-pod
2.使用cronjob命令配合rollout restart每天定时重启动pod
https://www.xiaowu95.wang/posts/26c255e0/
#Service account the client will use to reset the deployment,
#by default the pods running inside the cluster can do no such things.
kind: ServiceAccount
apiVersion: v1
metadata:
name: deployment-restart
namespace: <YOUR NAMESPACE>
---
# allow getting status and patching only the one deployment you want
# to restart
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: deployment-restart
namespace: <YOUR NAMESPACE>
rules:
- apiGroups: ["apps", "extensions"]
resources: ["deployments"]
resourceNames: ["<YOUR DEPLOYMENT NAME>"]
verbs: ["get", "patch", "list", "watch"] # "list" and "watch" are only needed
# if you want to use `rollout status`
---
# bind the role to the service account
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: deployment-restart
namespace: <YOUR NAMESPACE>
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: deployment-restart
subjects:
- kind: ServiceAccount
name: deployment-restart
namespace: <YOUR NAMESPACE>
---
# cronjob配置:
apiVersion: batch/v1
kind: CronJob
metadata:
name: deployment-restart
namespace: <YOUR NAMESPACE>
spec:
concurrencyPolicy: Forbid
schedule: '0 8 * * *' # cron spec of time, here, 8 o'clock
jobTemplate:
spec:
backoffLimit: 2 # this has very low chance of failing, as all this does
# is prompt kubernetes to schedule new replica set for
# the deployment
activeDeadlineSeconds: 600 # timeout, makes most sense with
# "waiting for rollout" variant specified below
template:
spec:
serviceAccountName: deployment-restart # name of the service
# account configured above
restartPolicy: Never
containers:
- name: kubectl
image: bitnami/kubectl # probably any kubectl image will do,
# optionaly specify version, but this
# should not be necessary, as long the
# version of kubectl is new enough to
# have `rollout restart`
command:
- 'kubectl'
- 'rollout'
- 'restart'
- 'deployment/<YOUR DEPLOYMENT NAME>'
如果希望cronjob等待部署完成，可以将cronjob命令更改为:
command:
- bash
- -c
- >-
kubectl rollout restart deployment/<YOUR DEPLOYMENT NAME> &&
kubectl rollout status deployment/<YOUR DEPLOYMENT NAME>