kubernetes/test/cmd/wait.sh
2022-12-20 17:02:23 +01:00

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#!/usr/bin/env bash
# Copyright 2018 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -o errexit
set -o nounset
set -o pipefail
run_wait_tests() {
set -o nounset
set -o errexit
kube::log::status "Testing kubectl wait"
create_and_use_new_namespace
### Wait for deletion using --all flag
# create test data
kubectl create deployment test-1 --image=busybox
kubectl create deployment test-2 --image=busybox
# Post-Condition: deployments exists
kube::test::get_object_assert "deployments" "{{range .items}}{{.metadata.name}},{{end}}" 'test-1,test-2,'
# wait with jsonpath will timout for busybox deployment
set +o errexit
# Command: Wait with jsonpath support fields not exist in the first place
output_message=$(kubectl wait --for=jsonpath=.status.readyReplicas=1 deploy/test-1 2>&1)
set -o errexit
# Post-Condition: Wait failed
kube::test::if_has_string "${output_message}" 'timed out'
# Delete all deployments async to kubectl wait
( sleep 2 && kubectl delete deployment --all ) &
# Command: Wait for all deployments to be deleted
output_message=$(kubectl wait deployment --for=delete --all)
# Post-Condition: Wait was successful
kube::test::if_has_string "${output_message}" 'test-1 condition met'
kube::test::if_has_string "${output_message}" 'test-2 condition met'
# create test data to test timeout error is occurred in correct time
kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: dtest
name: dtest
spec:
replicas: 3
selector:
matchLabels:
app: dtest
template:
metadata:
labels:
app: dtest
spec:
containers:
- name: bb
image: busybox
command: ["/bin/sh", "-c", "sleep infinity"]
EOF
set +o errexit
# wait timeout error because condition is invalid
start_sec=$(date +"%s")
output_message=$(time kubectl wait pod --selector=app=dtest --for=condition=InvalidCondition --timeout=1s 2>&1)
end_sec=$(date +"%s")
len_sec=$((end_sec-start_sec))
set -o errexit
kube::test::if_has_string "${output_message}" 'timed out waiting for the condition '
test $len_sec -ge 1 && test $len_sec -le 2
# Clean deployment
kubectl delete deployment dtest
set +o nounset
set +o errexit
}