如何在调用 kubernetes 的 create_namespaced_pod() 之前以编程方式检查 docker 映像是否存在

Question

I am using create_namespaced_pod() of the kubernetes-client package to dynamically create kubernetes pods from docker images that are in an images registry.

How do I check if the Docker image exists in the registry before calling create_namespaced_pod() ? I want to avoid creating the pod and then having to deal with error messages.

Answer 1

you may use docker registry ls to list the contents of your registry and parse for your image specifically. if ls isn't working for you, you can try a simple HTTP call to the image's URL in the registry, and check the response code.