KUBERNETES How to Start / Run Temporary Pod On Specific Node In Kubernetes

You can start a pod temporarily on specific node for testing by using kubectl command as follows:

kubectl run <name> --image=<image> --overrides='{"apiVersion": "v1", "spec": {"nodeSelector": {"kubernetes.io/hostname": "<hostname>"}}}' --restart=Never

With above command a temporary pod with specified name and image will be started on the node specified. The pod will not start once you delete the pod since restart is specified as "Never".

For e.g. to start nginx pod using nginx image in Oracle container registry on worker1 node, your command will look as follows:

kubectl run nginx --image=container-registry.oracle.com/olcne/nginx:1.17.7 --overrides='{"apiVersion": "v1", "spec": {"nodeSelector": {"kubernetes.io/hostname": "worker1"}}}' --restart=Never

Keywords:

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