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use kubectl-with-retry on pause & resume
This commit is contained in:
Mike Metral
parent
39f0c6ba25
commit
54e6d2356c
@ -109,6 +109,7 @@ function check-curl-proxy-code()
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function kubectl-with-retry()
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{
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ERROR_FILE="${KUBE_TEMP}/kubectl-error"
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preserve_err_file=${PRESERVE_ERR_FILE-false}
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for count in $(seq 0 3); do
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kubectl "$@" 2> ${ERROR_FILE} || true
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if grep -q "the object has been modified" "${ERROR_FILE}"; then
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@ -116,7 +117,9 @@ function kubectl-with-retry()
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rm "${ERROR_FILE}"
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sleep $((2**count))
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else
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rm "${ERROR_FILE}"
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if [ "$preserve_err_file" != true ] ; then
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rm "${ERROR_FILE}"
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fi
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break
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fi
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done
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@ -1060,7 +1063,7 @@ __EOF__
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kube::test::get_object_assert 'rc busybox1' "{{$rc_replicas_field}}" '1'
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# Command
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output_message=$(! kubectl scale --current-replicas=1 --replicas=2 -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
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# Post-condition: busybox0 & busybox replication controllers are scaled to 2 # replicas, and since busybox2 is malformed, it should error
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# Post-condition: busybox0 & busybox1 replication controllers are scaled to 2 replicas, and since busybox2 is malformed, it should error
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kube::test::get_object_assert 'rc busybox0' "{{$rc_replicas_field}}" '2'
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kube::test::get_object_assert 'rc busybox1' "{{$rc_replicas_field}}" '2'
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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@ -1074,7 +1077,7 @@ __EOF__
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kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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### Rollback a deployment
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### Rollout on multiple deployments recursively
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# Pre-condition: no deployments exist
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kube::test::get_object_assert deployment "{{range.items}}{{$id_field}}:{{end}}" ''
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# Command
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@ -1082,45 +1085,58 @@ __EOF__
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! kubectl create -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
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kube::test::get_object_assert deployment "{{range.items}}{{$id_field}}:{{end}}" 'nginx0-deployment:nginx1-deployment:'
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kube::test::get_object_assert deployment "{{range.items}}{{$deployment_image_field}}:{{end}}" "${IMAGE_NGINX}:${IMAGE_NGINX}:"
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## Rollback to revision 1 - should be no-op
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## Rollback the deployments to revision 1 recursively
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output_message=$(! kubectl rollout undo -f hack/testdata/recursive/deployment --recursive --to-revision=1 2>&1 "${kube_flags[@]}")
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# Post-condition: nginx0 & nginx1 should be a no-op, and since nginx2 is malformed, it should error
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kube::test::get_object_assert deployment "{{range.items}}{{$deployment_image_field}}:{{end}}" "${IMAGE_NGINX}:${IMAGE_NGINX}:"
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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## Pause the deployment
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output_message=$(! kubectl rollout pause -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
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## Pause the deployments recursively
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PRESERVE_ERR_FILE=true
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kubectl-with-retry rollout pause -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
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output_message=$(cat ${ERROR_FILE})
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# Post-condition: nginx0 & nginx1 should both have paused set to true, and since nginx2 is malformed, it should error
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kube::test::get_object_assert deployment "{{range.items}}{{.spec.paused}}:{{end}}" "true:true:"
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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## Resume the deployment
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output_message=$(! kubectl rollout resume -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
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## Resume the deployments recursively
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kubectl-with-retry rollout resume -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
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output_message=$(cat ${ERROR_FILE})
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# Post-condition: nginx0 & nginx1 should both have paused set to nothing, and since nginx2 is malformed, it should error
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kube::test::get_object_assert deployment "{{range.items}}{{.spec.paused}}:{{end}}" "<no value>:<no value>:"
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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## Retrieve the rollout history of the deployments recursively
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output_message=$(! kubectl rollout history -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
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# Post-condition: nginx0 & nginx1 should both have a history, and since nginx2 is malformed, it should error
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kube::test::if_has_string "${output_message}" "nginx0-deployment"
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kube::test::if_has_string "${output_message}" "nginx1-deployment"
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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# Clean up
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unset PRESERVE_ERR_FILE
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rm "${ERROR_FILE}"
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! kubectl delete -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}" --grace-period=0
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sleep 1
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### Rollback a resource that cannot be rolled back (replication controller)
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### Rollout on multiple replication controllers recursively - these tests ensure that rollouts cannot be performed on resources that don't support it
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# Pre-condition: no replication controller exists
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kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" ''
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# Command
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# Create replication controllers (revision 1) recursively from directory of YAML files
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# Create replication controllers recursively from directory of YAML files
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! kubectl create -f hack/testdata/recursive/rc --recursive "${kube_flags[@]}"
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kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" 'busybox0:busybox1:'
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# Command
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## Rollback to revision 1 - should be no-op
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## Attempt to rollback the replication controllers to revision 1 recursively
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output_message=$(! kubectl rollout undo -f hack/testdata/recursive/rc --recursive --to-revision=1 2>&1 "${kube_flags[@]}")
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# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
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kube::test::if_has_string "${output_message}" 'no rollbacker has been implemented for {"" "ReplicationController"}'
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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## Pause the deployment
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## Attempt to pause the replication controllers recursively
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output_message=$(! kubectl rollout pause -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
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# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
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kube::test::if_has_string "${output_message}" 'error when pausing "hack/testdata/recursive/rc/busybox.yaml'
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kube::test::if_has_string "${output_message}" 'error when pausing "hack/testdata/recursive/rc/rc/busybox.yaml'
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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## Resume the deployment
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## Attempt to resume the replication controllers recursively
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output_message=$(! kubectl rollout resume -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
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# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
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kube::test::if_has_string "${output_message}" 'error when resuming "hack/testdata/recursive/rc/busybox.yaml'
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kube::test::if_has_string "${output_message}" 'error when resuming "hack/testdata/recursive/rc/rc/busybox.yaml'
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kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
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