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(kubectl debug): Support debugging via files

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Currently `kubectl debug` only supports passing names in command line.
However, users might want to pass resources in files by passing `-f` flag like
in all other kubectl commands.

This PR adds this ability.
This commit is contained in:
Arda Güçlü
2023-02-10 10:21:15 +03:00
parent d2f40481d1
commit e0fedec69d
2 changed files with 45 additions and 14 deletions
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25
test/cmd/debug.sh
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@@ -25,6 +25,18 @@ run_kubectl_debug_pod_tests() {
create_and_use_new_namespace
kube::log::status "Testing kubectl debug (pod tests)"
### Pod Troubleshooting by ephemeral containers
# Pre-Condition: Pod "nginx" is created
kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
# Command: create a copy of target with a new debug container
kubectl debug target -it --image=busybox --attach=false -c debug-container "${kube_flags[@]:?}"
# Post-Conditions
kube::test::get_object_assert pod/target '{{range.spec.ephemeralContainers}}{{.name}}:{{end}}' 'debug-container:'
# Clean up
kubectl delete pod target "${kube_flags[@]:?}"
### Pod Troubleshooting by Copy
# Pre-Condition: Pod "nginx" is created
@@ -63,6 +75,19 @@ run_kubectl_debug_pod_tests() {
# Clean up
kubectl delete pod target target-copy "${kube_flags[@]:?}"
# Pre-Condition: Pod "nginx" is created
kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
kube::test::get_object_assert pod/target '{{(index .spec.containers 0).name}}' 'target'
# Command: copy the pod and replace the image of an existing container
kubectl get pod/target -o yaml > "${KUBE_TEMP}"/test-pod-debug.yaml
kubectl debug -f "${KUBE_TEMP}"/test-pod-debug.yaml --image=busybox --container=target --copy-to=target-copy "${kube_flags[@]:?}" -- sleep 1m
# Post-Conditions
kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
kube::test::get_object_assert pod/target-copy "{{(len .spec.containers)}}:{{${image_field:?}}}" '1:busybox'
# Clean up
kubectl delete pod target target-copy "${kube_flags[@]:?}"
set +o nounset
set +o errexit
}