[20230118] 今日思った DB Migration Jobの 使い方

[linzhengen]

DB Migration ジョブの場合

• Job

  apiVersion: batch/v1
  kind: Job
  metadata:
  name: db-migration
  spec:
  # 3600s後にジョブが自動に削除される
  ttlSecondsAfterFinished: 3600
  template:
  metadata:
    creationTimestamp: null
  spec:
    containers:
    - command:
      - /bin/sh
      -  -c
      - migrate db command
  ...
  backoffLimit: 0

• kubectl waitでjob実行結果を監視

  $ kubectl wait --for=condition=complete job/db-migration
  job.batch/my-job condition met
  $ echo $?
  0

• Kustomizeでnamesuffix を付けるとttlSecondsAfterFinished 期限内でも再実行ができる

  kustomize edit set namesuffix "_"$(date "+%Y%m%d%H%M%S")