如何在OpenShift Online的buildConfig中指定Dockerfile构建？

Question

Openshfit details: Paid Professional version. Version Information:

Been trying to create a build from a Dockerfile in Openshift. Its tough going. So I tried to use the existing templates in the Cluster Console. One of which is the Docker one. When i press "Try it" it generates a sample BuildConfig, when I try to then Create it, it gives me the error: (i have now raised the above in the Origin upstream issue tracker) Anyhoo...anyone know how to specify a buildConfig an image from a Dockerfile in a git repo? I would be grateful to know.

Answer 1

You can see the build strategies allowed for OpenShift Online on the product website: https://www.openshift.com/products/online . Dockerfile build isn't deprecated, it's just explicitly disallowed in OpenShift Online. You can build your Dockerfile locally and push it directly to the OpenShift internal registry (commands for docker login and docker push are on your cluster's About page).

However, in other environments (not OpenShift Online), you can specify a Dockerfile build as follows and providing a Git Repo with a Dockerfile contained within (located at BuildConfig.spec.source.contextDir )

strategy:
  type: Docker

There are additional options that can be configured for a Dockerfile build as well, outlined in https://docs.okd.io/latest/dev_guide/builds/build_strategies.html#docker-strategy-options .