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832644f0b3
`kubectl exec` command supports getting files as inputs. However, if the file contains multiple resources, it returns unclear error message; `cannot attach to *v1.List: selector for *v1.List not implemented`. Since `exec` command does not support multi resources, this PR handles that and returns descriptive error message earlier.
124 lines
4.0 KiB
Bash
Executable File
124 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2019 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_exec_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 exec POD COMMAND"
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### Test execute non-existing POD
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output_message=$(! kubectl exec abc date 2>&1)
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# POD abc should error since it doesn't exist
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kube::test::if_has_string "${output_message}" 'pods "abc" not found'
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### Test execute multiple resources
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output_message=$(! kubectl exec -f - 2>&1 -- echo test << __EOF__
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apiVersion: v1
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kind: Pod
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metadata:
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name: test
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spec:
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containers:
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- name: nginx
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image: nginx
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---
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apiVersion: v1
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kind: Pod
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metadata:
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name: test2
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spec:
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containers:
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- name: nginx
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image: nginx
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__EOF__
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)
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kube::test::if_has_string "${output_message}" 'cannot exec into multiple objects at a time'
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### Test execute existing POD
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# Create test-pod
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kubectl create -f hack/testdata/pod.yaml
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# Execute existing POD
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output_message=$(! kubectl exec test-pod date 2>&1)
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# POD test-pod is exists this is shouldn't have output not found
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kube::test::if_has_not_string "${output_message}" 'pods "test-pod" not found'
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# These must be pass the validate
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kube::test::if_has_not_string "${output_message}" 'pod or type/name must be specified'
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# Clean up
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kubectl delete pods test-pod
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set +o nounset
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set +o errexit
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}
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run_kubectl_exec_resource_name_tests() {
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set +o nounset
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set +o errexit
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create_and_use_new_namespace
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kube::log::status "Testing kubectl exec TYPE/NAME COMMAND"
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### Test execute invalid resource type
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output_message=$(! kubectl exec foo/bar date 2>&1)
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# resource type foo should error since it's invalid
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kube::test::if_has_string "${output_message}" 'error:'
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### Test execute non-existing resources
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output_message=$(! kubectl exec deployments/bar date 2>&1)
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# resource type foo should error since it doesn't exist
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kube::test::if_has_string "${output_message}" '"bar" not found'
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kubectl create -f hack/testdata/pod.yaml
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kubectl create -f hack/testdata/frontend-replicaset.yaml
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kubectl create -f hack/testdata/configmap.yaml
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### Test execute non-implemented resources
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output_message=$(! kubectl exec configmap/test-set-env-config date 2>&1)
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# resource type configmap should error since configmap not implemented to be attached
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kube::test::if_has_string "${output_message}" 'not implemented'
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### Test execute exists and valid resource type.
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# Just check the output, since test-cmd not run kubelet, pod never be assigned.
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# and not really can run `kubectl exec` command
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output_message=$(! kubectl exec pods/test-pod date 2>&1)
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# POD test-pod is exists this is shouldn't have output not found
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kube::test::if_has_not_string "${output_message}" 'not found'
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# These must be pass the validate
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kube::test::if_has_not_string "${output_message}" 'pod, type/name or --filename must be specified'
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output_message=$(! kubectl exec replicaset/frontend date 2>&1)
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# Replicaset frontend is valid and exists will select the first pod.
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# and Shouldn't have output not found
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kube::test::if_has_not_string "${output_message}" 'not found'
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# These must be pass the validate
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kube::test::if_has_not_string "${output_message}" 'pod, type/name or --filename must be specified'
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# Clean up
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kubectl delete pods/test-pod
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kubectl delete replicaset/frontend
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kubectl delete configmap/test-set-env-config
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set +o nounset
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set +o errexit
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}
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