Openshift：自动更新上游图像

Question

在Openshift中，我们有一个BuildConfig，它依赖于hub.docker.com（ubuntu:xenial）中的映像。

strategy:
  type: Docker
  dockerStrategy:
    from:
      kind: ImageStreamTag
      namespace: <my namespace>
      name: 'ubuntu:xenial'
    forcePull: true

为此，我使用以下配置创建了一个ImageStream：

apiVersion: v1
kind: ImageStream
metadata:
  name: ubuntu
  namespace: <my namespace>
spec:
  dockerImageRepository: registry.hub.docker.com/library/ubuntu

我现在想在上游Ubuntu映像更改时运行BuildConfig。我可以通过运行手动更新Ubuntu映像oc import-image ubuntu。

除了创建外部cron作业以外，还有另一种自动更新映像的方法吗？

版本号

OpenShift Master: v1.3.1
Kubernetes Master: v1.3.0+52492b4

Answer 1

查看与图像流标签关联的scheduled字段importPolicy。

$ oc explain is.spec.tags.importPolicy
RESOURCE: importPolicy <Object>

DESCRIPTION:
     Import is information that controls how images may be imported by the
     server.

    TagImportPolicy describes the tag import policy

FIELDS:
   insecure <boolean>
     Insecure is true if the server may bypass certificate verification or
     connect directly over HTTP during image import.

   scheduled    <boolean>
     Scheduled indicates to the server that this tag should be periodically
     checked to ensure it is up to date, and imported

在以下内容中有提及：

• 导入标签和图像元数据