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Merge pull request #26243 from metral/fix-pause

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Automatic merge from submit-queue

use kubectl-with-retry on pause & resume

attempts to fix https://github.com/kubernetes/kubernetes/issues/25645 by using `kubectl-with-retry` on `rollout {pause,resume}` (`resume` is for safe measures) instead of `kubectl` directly, as is done with other `rollout {pause,resume}` tests in this same script.
This commit is contained in:
k8s-merge-robot 2016-05-25 19:49:45 -07:00
commit 128e7f13af
1 changed files with 29 additions and 13 deletions
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42
hack/test-cmd.sh
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@ -109,6 +109,7 @@ function check-curl-proxy-code()
function kubectl-with-retry()
{
ERROR_FILE="${KUBE_TEMP}/kubectl-error"
preserve_err_file=${PRESERVE_ERR_FILE-false}
for count in $(seq 0 3); do
kubectl "$@" 2> ${ERROR_FILE} || true
if grep -q "the object has been modified" "${ERROR_FILE}"; then
@ -116,7 +117,9 @@ function kubectl-with-retry()
rm "${ERROR_FILE}"
sleep $((2**count))
else
rm "${ERROR_FILE}"
if [ "$preserve_err_file" != true ] ; then
rm "${ERROR_FILE}"
fi
break
fi
done
@ -1064,7 +1067,7 @@ __EOF__
kube::test::get_object_assert 'rc busybox1' "{{$rc_replicas_field}}" '1'
# Command
output_message=$(! kubectl scale --current-replicas=1 --replicas=2 -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
# Post-condition: busybox0 & busybox replication controllers are scaled to 2 # replicas, and since busybox2 is malformed, it should error
# Post-condition: busybox0 & busybox1 replication controllers are scaled to 2 replicas, and since busybox2 is malformed, it should error
kube::test::get_object_assert 'rc busybox0' "{{$rc_replicas_field}}" '2'
kube::test::get_object_assert 'rc busybox1' "{{$rc_replicas_field}}" '2'
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
@ -1078,7 +1081,7 @@ __EOF__
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
### Rollback a deployment
### Rollout on multiple deployments recursively
# Pre-condition: no deployments exist
kube::test::get_object_assert deployment "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
@ -1086,45 +1089,58 @@ __EOF__
! kubectl create -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
kube::test::get_object_assert deployment "{{range.items}}{{$id_field}}:{{end}}" 'nginx0-deployment:nginx1-deployment:'
kube::test::get_object_assert deployment "{{range.items}}{{$deployment_image_field}}:{{end}}" "${IMAGE_NGINX}:${IMAGE_NGINX}:"
## Rollback to revision 1 - should be no-op
## Rollback the deployments to revision 1 recursively
output_message=$(! kubectl rollout undo -f hack/testdata/recursive/deployment --recursive --to-revision=1 2>&1 "${kube_flags[@]}")
# Post-condition: nginx0 & nginx1 should be a no-op, and since nginx2 is malformed, it should error
kube::test::get_object_assert deployment "{{range.items}}{{$deployment_image_field}}:{{end}}" "${IMAGE_NGINX}:${IMAGE_NGINX}:"
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
## Pause the deployment
output_message=$(! kubectl rollout pause -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
## Pause the deployments recursively
PRESERVE_ERR_FILE=true
kubectl-with-retry rollout pause -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
output_message=$(cat ${ERROR_FILE})
# Post-condition: nginx0 & nginx1 should both have paused set to true, and since nginx2 is malformed, it should error
kube::test::get_object_assert deployment "{{range.items}}{{.spec.paused}}:{{end}}" "true:true:"
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
## Resume the deployment
output_message=$(! kubectl rollout resume -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
## Resume the deployments recursively
kubectl-with-retry rollout resume -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}"
output_message=$(cat ${ERROR_FILE})
# Post-condition: nginx0 & nginx1 should both have paused set to nothing, and since nginx2 is malformed, it should error
kube::test::get_object_assert deployment "{{range.items}}{{.spec.paused}}:{{end}}" "<no value>:<no value>:"
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
## Retrieve the rollout history of the deployments recursively
output_message=$(! kubectl rollout history -f hack/testdata/recursive/deployment --recursive 2>&1 "${kube_flags[@]}")
# Post-condition: nginx0 & nginx1 should both have a history, and since nginx2 is malformed, it should error
kube::test::if_has_string "${output_message}" "nginx0-deployment"
kube::test::if_has_string "${output_message}" "nginx1-deployment"
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
# Clean up
unset PRESERVE_ERR_FILE
rm "${ERROR_FILE}"
! kubectl delete -f hack/testdata/recursive/deployment --recursive "${kube_flags[@]}" --grace-period=0
sleep 1
### Rollback a resource that cannot be rolled back (replication controller)
### Rollout on multiple replication controllers recursively - these tests ensure that rollouts cannot be performed on resources that don't support it
# Pre-condition: no replication controller exists
kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
# Create replication controllers (revision 1) recursively from directory of YAML files
# Create replication controllers recursively from directory of YAML files
! kubectl create -f hack/testdata/recursive/rc --recursive "${kube_flags[@]}"
kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" 'busybox0:busybox1:'
# Command
## Rollback to revision 1 - should be no-op
## Attempt to rollback the replication controllers to revision 1 recursively
output_message=$(! kubectl rollout undo -f hack/testdata/recursive/rc --recursive --to-revision=1 2>&1 "${kube_flags[@]}")
# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
kube::test::if_has_string "${output_message}" 'no rollbacker has been implemented for {"" "ReplicationController"}'
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
## Pause the deployment
## Attempt to pause the replication controllers recursively
output_message=$(! kubectl rollout pause -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
kube::test::if_has_string "${output_message}" 'error when pausing "hack/testdata/recursive/rc/busybox.yaml'
kube::test::if_has_string "${output_message}" 'error when pausing "hack/testdata/recursive/rc/rc/busybox.yaml'
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"
## Resume the deployment
## Attempt to resume the replication controllers recursively
output_message=$(! kubectl rollout resume -f hack/testdata/recursive/rc --recursive 2>&1 "${kube_flags[@]}")
# Post-condition: busybox0 & busybox1 should error as they are RC's, and since busybox2 is malformed, it should error
kube::test::if_has_string "${output_message}" 'error when resuming "hack/testdata/recursive/rc/busybox.yaml'
kube::test::if_has_string "${output_message}" 'error when resuming "hack/testdata/recursive/rc/rc/busybox.yaml'
kube::test::if_has_string "${output_message}" "Object 'Kind' is missing"