455 lines
26 KiB
Bash
Executable File
455 lines
26 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2020 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -o errexit
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set -o nounset
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set -o pipefail
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run_kubectl_debug_pod_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug (pod tests)"
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### Pod Troubleshooting by ephemeral containers
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug target -it --image=busybox --attach=false -c debug-container "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod/target '{{range.spec.ephemeralContainers}}{{.name}}:{{end}}' 'debug-container:'
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# Clean up
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kubectl delete pod target "${kube_flags[@]:?}"
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### Pod Troubleshooting by Copy
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.image}}:{{end}}' "${IMAGE_NGINX:?}:busybox:"
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container replacing the previous pod
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kubectl debug target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false --replace "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target-copy:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.image}}:{{end}}' "${IMAGE_NGINX:?}:busybox:"
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# Clean up
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kubectl delete pod target-copy "${kube_flags[@]:?}"
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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kube::test::get_object_assert pod/target '{{(index .spec.containers 0).name}}' 'target'
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# Command: copy the pod and replace the image of an existing container
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kubectl debug target --image=busybox --container=target --copy-to=target-copy "${kube_flags[@]:?}" -- sleep 1m
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy "{{(len .spec.containers)}}:{{${image_field:?}}}" '1:busybox'
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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kube::test::get_object_assert pod/target '{{(index .spec.containers 0).name}}' 'target'
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# Command: copy the pod and replace the image of an existing container
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kubectl get pod/target -o yaml > "${KUBE_TEMP}"/test-pod-debug.yaml
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kubectl debug -f "${KUBE_TEMP}"/test-pod-debug.yaml --image=busybox --container=target --copy-to=target-copy "${kube_flags[@]:?}" -- sleep 1m
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy "{{(len .spec.containers)}}:{{${image_field:?}}}" '1:busybox'
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_node_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug (pod tests)"
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### Node Troubleshooting by Privileged Container
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# Pre-Condition: Pod "nginx" is created
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kube::test::get_object_assert nodes "{{range.items}}{{${id_field:?}}}:{{end}}" '127.0.0.1:'
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# Command: create a new node debugger pod
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output_message=$(kubectl debug node/127.0.0.1 --image=busybox --attach=false "${kube_flags[@]:?}" -- true)
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# Post-Conditions
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kube::test::get_object_assert pod "{{(len .items)}}" '1'
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debugger=$(kubectl get pod -o go-template="{{(index .items 0)${id_field:?}}}")
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kube::test::if_has_string "${output_message:?}" "${debugger:?}"
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kube::test::get_object_assert "pod/${debugger:?}" "{{${image_field:?}}}" 'busybox'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.nodeName}}' '127.0.0.1'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostIPC}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostNetwork}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostPID}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{(index (index .spec.containers 0).volumeMounts 0).mountPath}}' '/host'
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kube::test::get_object_assert "pod/${debugger:?}" '{{(index .spec.volumes 0).hostPath.path}}' '/'
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# Clean up
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# pod.spec.nodeName is set by kubectl debug node which causes the delete to hang,
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# presumably waiting for a kubelet that's not present. Force the delete.
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kubectl delete --force pod "${debugger:?}" "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_general_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile general"
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### Debug by pod copy
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### probes are removed, sets SYS_PTRACE in debugging container, sets shareProcessNamespace
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug --profile general target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.image}}:{{end}}' "${IMAGE_NGINX:?}:busybox:"
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "livenessProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "readinessProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "startupProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{(index (index .spec.containers 1).securityContext.capabilities.add 0)}}' 'SYS_PTRACE'
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kube::test::get_object_assert pod/target-copy '{{.spec.shareProcessNamespace}}' 'true'
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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### Debug by EC
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### sets SYS_PTRACE in ephemeral container
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug --profile general target -it --image=busybox --container=debug-container --attach=false "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod/target '{{range.spec.ephemeralContainers}}{{.name}}:{{.image}}{{end}}' 'debug-container:busybox'
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kube::test::get_object_assert pod/target '{{(index (index .spec.ephemeralContainers 0).securityContext.capabilities.add 0)}}' 'SYS_PTRACE'
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# Clean up
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kubectl delete pod target "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_general_node_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile general (node)"
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### Debug node
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### empty securityContext, uses host namespaces, mounts root partition
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# Pre-Condition: node exists
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kube::test::get_object_assert nodes "{{range.items}}{{${id_field:?}}}:{{end}}" '127.0.0.1:'
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# Command: create a new node debugger pod
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output_message=$(kubectl debug --profile general node/127.0.0.1 --image=busybox --attach=false "${kube_flags[@]:?}" -- true)
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# Post-Conditions
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kube::test::get_object_assert pod "{{(len .items)}}" '1'
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debugger=$(kubectl get pod -o go-template="{{(index .items 0)${id_field:?}}}")
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kube::test::if_has_string "${output_message:?}" "${debugger:?}"
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kube::test::get_object_assert "pod/${debugger:?}" "{{${image_field:?}}}" 'busybox'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.nodeName}}' '127.0.0.1'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostIPC}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostNetwork}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostPID}}' 'true'
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kube::test::get_object_assert "pod/${debugger:?}" '{{(index (index .spec.containers 0).volumeMounts 0).mountPath}}' '/host'
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kube::test::get_object_assert "pod/${debugger:?}" '{{(index .spec.volumes 0).hostPath.path}}' '/'
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kube::test::get_object_assert "pod/${debugger:?}" '{{if (index (index .spec.containers 0) "securityContext")}}:{{end}}' ''
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# Clean up
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# pod.spec.nodeName is set by kubectl debug node which causes the delete to hang,
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# presumably waiting for a kubelet that's not present. Force the delete.
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kubectl delete --force pod "${debugger:?}" "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_baseline_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile baseline"
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### Debug by pod copy
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### probes are removed, empty securityContext, sets shareProcessNamespace
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug --profile baseline target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.image}}:{{end}}' "${IMAGE_NGINX:?}:busybox:"
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "livenessProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "readinessProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{if (index . "startupProbe")}}:{{end}}{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{if (index (index .spec.containers 0) "securityContext")}}:{{end}}' ''
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kube::test::get_object_assert pod/target-copy '{{.spec.shareProcessNamespace}}' 'true'
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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### Debug by EC
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### empty securityContext
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Command: create a copy of target with a new debug container
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kubectl debug --profile baseline target -it --image=busybox --container=debug-container --attach=false "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod/target '{{range.spec.ephemeralContainers}}{{.name}}:{{.image}}{{end}}' 'debug-container:busybox'
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kube::test::get_object_assert pod/target '{{if (index (index .spec.ephemeralContainers 0) "securityContext")}}:{{end}}' ''
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# Clean up
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kubectl delete pod target "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_baseline_node_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile baseline (node)"
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### Debug node
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### empty securityContext, uses isolated namespaces
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# Pre-Condition: node exists
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kube::test::get_object_assert nodes "{{range.items}}{{${id_field:?}}}:{{end}}" '127.0.0.1:'
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# Command: create a new node debugger pod
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output_message=$(kubectl debug --profile baseline node/127.0.0.1 --image=busybox --attach=false "${kube_flags[@]:?}" -- true)
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# Post-Conditions
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kube::test::get_object_assert pod "{{(len .items)}}" '1'
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debugger=$(kubectl get pod -o go-template="{{(index .items 0)${id_field:?}}}")
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kube::test::if_has_string "${output_message:?}" "${debugger:?}"
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kube::test::get_object_assert "pod/${debugger:?}" "{{${image_field:?}}}" 'busybox'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.nodeName}}' '127.0.0.1'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostIPC}}' '<no value>'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostNetwork}}' '<no value>'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostPID}}' '<no value>'
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kube::test::get_object_assert "pod/${debugger:?}" '{{if (index (index .spec.containers 0) "securityContext")}}:{{end}}' ''
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# Clean up
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# pod.spec.nodeName is set by kubectl debug node which causes the delete to hang,
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# presumably waiting for a kubelet that's not present. Force the delete.
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kubectl delete --force pod "${debugger:?}" "${kube_flags[@]:?}"
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_restricted_tests() {
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set -o nounset
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set -o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile restricted"
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### Pod Troubleshooting by ephemeral containers with restricted profile
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile just works in not restricted namespace
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# Command: add a new debug container with restricted profile
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output_message=$(kubectl debug target -it --image=busybox --attach=false -c debug-container --profile=restricted "${kube_flags[@]:?}")
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kube::test::if_has_not_string "${output_message}" 'forbidden: violates PodSecurity'
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# Post-Conditions
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kube::test::get_object_assert pod/target '{{range.spec.ephemeralContainers}}{{.name}}:{{end}}' 'debug-container:'
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# Clean up
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kubectl delete pod target "${kube_flags[@]:?}"
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# Pre-Condition: Pod "nginx" is created
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kubectl run target "--image=${IMAGE_NGINX:?}" "${kube_flags[@]:?}"
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile just works in not restricted namespace
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# Command: create a copy of target with a new debug container
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kubectl debug target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false --profile=restricted "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert pod "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert pod/target-copy '{{range.spec.containers}}{{.image}}:{{end}}' "${IMAGE_NGINX:?}:busybox:"
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# Clean up
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kubectl delete pod target target-copy "${kube_flags[@]:?}"
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ns_name="namespace-restricted"
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# Command: create namespace and add a label
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kubectl create namespace "${ns_name}"
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kubectl label namespace "${ns_name}" pod-security.kubernetes.io/enforce=restricted
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output_message=$(kubectl get namespaces "${ns_name}" --show-labels)
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kube::test::if_has_string "${output_message}" 'pod-security.kubernetes.io/enforce=restricted'
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# Pre-Condition: Pod "busybox" is created that complies with the restricted policy
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kubectl create -f hack/testdata/pod-restricted-runtime-default.yaml -n "${ns_name}"
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile works when pod's seccompProfile is RuntimeDefault
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# Command: add a new debug container with restricted profile
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output_message=$(kubectl debug target -it --image=busybox --attach=false -c debug-container --profile=restricted -n "${ns_name}" "${kube_flags[@]:?}")
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kube::test::if_has_not_string "${output_message}" 'forbidden: violates PodSecurity'
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# Post-Conditions
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kube::test::get_object_assert "pod/target -n ${ns_name}" '{{range.spec.ephemeralContainers}}{{.name}}:{{end}}' 'debug-container:'
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# Clean up
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kubectl delete pod target -n "${ns_name}" "${kube_flags[@]:?}"
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# Pre-Condition: Pod "nginx" is created
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kubectl create -f hack/testdata/pod-restricted-runtime-default.yaml -n "${ns_name}"
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile works when pod's seccompProfile is RuntimeDefault
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# Command: create a copy of target with a new debug container
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kubectl debug target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false --profile=restricted -n ${ns_name} "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert "pod/target-copy -n ${ns_name}" '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert "pod/target-copy -n ${ns_name}" '{{range.spec.containers}}{{.image}}:{{end}}' "busybox:busybox:"
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# Clean up
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kubectl delete pod target target-copy -n "${ns_name}" "${kube_flags[@]:?}"
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# Pre-Condition: Pod "busybox" is created that complies with the restricted policy
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kubectl create -f hack/testdata/pod-restricted-localhost.yaml -n "${ns_name}"
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile works when pod's seccompProfile is Localhost
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# Command: add a new debug container with restricted profile
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output_message=$(kubectl debug target -it --image=busybox --attach=false -c debug-container --profile=restricted -n ${ns_name} "${kube_flags[@]:?}")
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kube::test::if_has_not_string "${output_message}" 'forbidden: violates PodSecurity'
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# Post-Conditions
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kube::test::get_object_assert "pod/target -n ${ns_name}" '{{range.spec.ephemeralContainers}}{{.name}}:{{end}}' 'debug-container:'
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# Clean up
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kubectl delete pod target -n ${ns_name} "${kube_flags[@]:?}"
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|
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# Pre-Condition: Pod "nginx" is created
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kubectl create -f hack/testdata/pod-restricted-localhost.yaml -n "${ns_name}"
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:'
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# Restricted profile works when pod's seccompProfile is Localhost
|
|
# Command: create a copy of target with a new debug container
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kubectl debug target -it --copy-to=target-copy --image=busybox --container=debug-container --attach=false --profile=restricted -n ${ns_name} "${kube_flags[@]:?}"
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# Post-Conditions
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kube::test::get_object_assert "pod -n ${ns_name}" "{{range.items}}{{${id_field:?}}}:{{end}}" 'target:target-copy:'
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kube::test::get_object_assert "pod/target-copy -n ${ns_name}" '{{range.spec.containers}}{{.name}}:{{end}}' 'target:debug-container:'
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kube::test::get_object_assert "pod/target-copy -n ${ns_name}" '{{range.spec.containers}}{{.image}}:{{end}}' "busybox:busybox:"
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# Clean up
|
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kubectl delete pod target target-copy -n "${ns_name}" "${kube_flags[@]:?}"
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# Clean up restricted namespace
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kubectl delete namespace "${ns_name}"
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|
|
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set +o nounset
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set +o errexit
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}
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run_kubectl_debug_restricted_node_tests() {
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set -o nounset
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set -o errexit
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|
|
create_and_use_new_namespace
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kube::log::status "Testing kubectl debug profile restricted (node)"
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|
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### Debug node with restrected profile
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# Pre-Condition: node exists
|
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kube::test::get_object_assert nodes "{{range.items}}{{${id_field:?}}}:{{end}}" '127.0.0.1:'
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# Restricted profile just works in not restricted namespace
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# Command: create a new node debugger pod
|
|
output_message=$(kubectl debug --profile restricted node/127.0.0.1 --image=busybox --attach=false "${kube_flags[@]:?}" -- true)
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kube::test::if_has_not_string "${output_message}" 'forbidden: violates PodSecurity'
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# Post-Conditions
|
|
kube::test::get_object_assert pod "{{(len .items)}}" '1'
|
|
debugger=$(kubectl get pod -o go-template="{{(index .items 0)${id_field:?}}}")
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kube::test::if_has_string "${output_message:?}" "${debugger:?}"
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kube::test::get_object_assert "pod/${debugger:?}" "{{${image_field:?}}}" 'busybox'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.nodeName}}' '127.0.0.1'
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kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostIPC}}' '<no value>'
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|
kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostNetwork}}' '<no value>'
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|
kube::test::get_object_assert "pod/${debugger:?}" '{{.spec.hostPID}}' '<no value>'
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kube::test::get_object_assert "pod/${debugger:?}" '{{index .spec.containers 0 "securityContext" "allowPrivilegeEscalation"}}' 'false'
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|
kube::test::get_object_assert "pod/${debugger:?}" '{{index .spec.containers 0 "securityContext" "capabilities" "drop"}}' '\[ALL\]'
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|
kube::test::get_object_assert "pod/${debugger:?}" '{{if (index (index .spec.containers 0) "securityContext" "capabilities" "add") }}:{{end}}' ''
|
|
kube::test::get_object_assert "pod/${debugger:?}" '{{index .spec.containers 0 "securityContext" "runAsNonRoot"}}' 'true'
|
|
kube::test::get_object_assert "pod/${debugger:?}" '{{index .spec.containers 0 "securityContext" "seccompProfile" "type"}}' 'RuntimeDefault'
|
|
# Clean up
|
|
# pod.spec.nodeName is set by kubectl debug node which causes the delete to hang,
|
|
# presumably waiting for a kubelet that's not present. Force the delete.
|
|
kubectl delete --force pod "${debugger:?}" "${kube_flags[@]:?}"
|
|
|
|
ns_name="namespace-restricted"
|
|
# Command: create namespace and add a label
|
|
kubectl create namespace "${ns_name}"
|
|
kubectl label namespace "${ns_name}" pod-security.kubernetes.io/enforce=restricted
|
|
output_message=$(kubectl get namespaces "${ns_name}" --show-labels)
|
|
kube::test::if_has_string "${output_message}" 'pod-security.kubernetes.io/enforce=restricted'
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|
|
|
# Pre-Condition: node exists
|
|
kube::test::get_object_assert nodes "{{range.items}}{{${id_field:?}}}:{{end}}" '127.0.0.1:'
|
|
# Restricted profile works in restricted namespace
|
|
# Command: create a new node debugger pod
|
|
output_message=$(kubectl debug --profile restricted node/127.0.0.1 --image=busybox --attach=false -n ${ns_name} "${kube_flags[@]:?}" -- true)
|
|
kube::test::if_has_not_string "${output_message}" 'forbidden: violates PodSecurity'
|
|
# Post-Conditions
|
|
kube::test::get_object_assert "pod -n ${ns_name}" "{{(len .items)}}" '1'
|
|
debugger=$(kubectl get pod -n ${ns_name} -o go-template="{{(index .items 0)${id_field:?}}}")
|
|
kube::test::if_has_string "${output_message:?}" "${debugger:?}"
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" "{{${image_field:?}}}" 'busybox'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{.spec.nodeName}}' '127.0.0.1'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{.spec.hostIPC}}' '<no value>'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{.spec.hostNetwork}}' '<no value>'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{.spec.hostPID}}' '<no value>'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{index .spec.containers 0 "securityContext" "allowPrivilegeEscalation"}}' 'false'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{index .spec.containers 0 "securityContext" "capabilities" "drop"}}' '\[ALL\]'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{if (index (index .spec.containers 0) "securityContext" "capabilities" "add") }}:{{end}}' ''
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{index .spec.containers 0 "securityContext" "runAsNonRoot"}}' 'true'
|
|
kube::test::get_object_assert "pod/${debugger:?} -n ${ns_name}" '{{index .spec.containers 0 "securityContext" "seccompProfile" "type"}}' 'RuntimeDefault'
|
|
# Clean up
|
|
# pod.spec.nodeName is set by kubectl debug node which causes the delete to hang,
|
|
# presumably waiting for a kubelet that's not present. Force the delete.
|
|
kubectl delete --force pod "${debugger:?}" -n ${ns_name} "${kube_flags[@]:?}"
|
|
|
|
# Clean up restricted namespace
|
|
kubectl delete namespace "${ns_name}"
|
|
|
|
set +o nounset
|
|
set +o errexit
|
|
} |