Created
July 9, 2023 09:43
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# https://stackoverflow.com/questions/52422300/how-to-schedule-pods-restart | |
--- | |
# 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: <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: <namespace> | |
rules: | |
- apiGroups: ["apps", "extensions"] | |
resources: ["deployments"] | |
resourceNames: ["<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: <namespace> | |
roleRef: | |
apiGroup: rbac.authorization.k8s.io | |
kind: Role | |
name: deployment-restart | |
subjects: | |
- kind: ServiceAccount | |
name: deployment-restart | |
namespace: <namespace> | |
--- | |
apiVersion: batch/v1 | |
kind: CronJob | |
metadata: | |
name: deployment-restart | |
namespace: <namespace> | |
spec: | |
concurrencyPolicy: Forbid | |
schedule: '0 22 */2 * *' # cron spec of time, here, 22 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/<deployment-name>' |
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