kubectl debug

Debug cluster resources using interactive debugging containers. More information: https://kubernetes.io/docs/reference/kubectl/generated/kubectl_debug.

Create an interactive debugging session in a pod and immediately attach to it:

kubectl debug {{pod_name}} {{[-it|--stdin --tty]}} --image busybox

Create a debug container with a custom image and name:

kubectl debug --image {{image}} {{[-c|--container]}} {{container_name}} {{pod_name}}

Create an interactive debugging session on a node and immediately attach to it (the container will run in the host namespaces and the host's filesystem will be mounted at /host):

kubectl debug node/{{node_name}} {{[-it|--stdin --tty]}} --image busybox

Create a copy of a pod and add a debug container to it:

kubectl debug {{pod_name}} {{[-it|--stdin --tty]}} --image {{image}} --copy-to {{pod_copy_name}}

Create a copy of a pod and change the command of a specific container:

kubectl debug {{pod_name}} {{[-it|--stdin --tty]}} --copy-to {{pod_copy_name}} --container {{container_name}} -- {{command}}

Create a copy of a pod and change the image of a specific container:

kubectl debug {{pod_name}} --copy-to {{pod_copy_name}} --set-image {{container_name}}={{image}}

Create a copy of a pod and change all container images:

kubectl debug {{pod_name}} --copy-to {{pod_copy_name}} --set-image '*={{image}}'

Create an ephemeral debug container and target a specific container (useful for debugging distroless containers):

kubectl debug {{pod_name}} {{[-it|--stdin --tty]}} --image {{image}} --target {{target_container_name}}

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kubectl debug

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