I am novice to Kubernetes. Recently my Docker registry url is changed from dockerhub.abc.com
to dockerhub.def.com
. Is it possible that i can change this in properties of Kubernetes pod so that next time,it pulls from new registry?
If you're using secrets to hold your authorization token for your Docker registry, you can refer to using private registry
I recommend you to use secrets. All you need to do is create a new secret or update the existing one with your new url, and then put this secret to your Pod's .yaml.
apiVersion: v1
kind: Pod
metadata:
name: private-reg
spec:
containers:
- name: private-reg-container
image: <your-private-image>
imagePullSecrets:
- name: <your-secret-name>
In general you'll find it easiest if you explicitly qualify your image names to include the repository name, and not depend on a default value that isn't the official Docker Hub
image: dockerhub.abc.com/dist/image:1.2.3
in which case you can just change the image name in your deployment
image: dockerhub.def.com/dist/image:1.2.3
If you're using a system like Helm to manage your Kubernetes manifests, you might find it helpful to include the image base name and/or repository in its values file
image: dockerhub.abc.com/dist/image
tag: 1.2.3
and then you can just change the image's repository location and redeploy.