
What I really want is https://github.com/GoogleCloudPlatform/kubernetes/issues/2953, but haven't had a chance to code that yet. Maybe it's time. (Then I'd remove the provider-specific test and just say "is it > 0.7.2, or does it claim to be capable of something from the future?" The latter covers the HEAD server case .. though just bumping the server version immediately after release might also accomplish that, too.)
105 lines
3.0 KiB
Bash
Executable File
105 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 Google Inc. All rights reserved.
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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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# Launches a container and verifies it can be reached. Assumes that
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# we're being called by hack/e2e-test.sh (we use some env vars it sets up).
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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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KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
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source "${KUBE_ROOT}/cluster/kube-env.sh"
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source "${KUBE_ROOT}/cluster/$KUBERNETES_PROVIDER/util.sh"
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liveness_tests="http exec"
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if [[ ${KUBERNETES_PROVIDER} == "gke" ]]; then
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server_version=$(kube_server_version)
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if [[ ${server_version} -le 702 ]]; then
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echo "GKE server version <= 0.7.2, limiting test to http (version = ${server_version})"
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liveness_tests="http"
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fi
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fi
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function teardown() {
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echo "Cleaning up test artifacts"
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for test in ${liveness_tests}; do
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${KUBECFG} delete pods/liveness-${test}
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done
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}
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function waitForNotPending() {
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pod_id_list=$($KUBECFG '-template={{range.items}}{{.id}} {{end}}' -l test=liveness list pods)
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# Pod turn up on a clean cluster can take a while for the docker image pull.
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all_running=0
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for i in $(seq 1 24); do
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echo "Waiting for pod to come up."
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sleep 5
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all_running=1
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for id in $pod_id_list; do
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current_status=$($KUBECFG -template '{{.currentState.status}}' get pods/$id) || true
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if [[ "$current_status" == "Pending" ]]; then
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all_running=0
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break
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fi
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done
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if [[ "${all_running}" == 1 ]]; then
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break
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fi
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done
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if [[ "${all_running}" == 0 ]]; then
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echo "Pods did not come up in time"
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exit 1
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fi
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}
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trap "teardown" EXIT
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for test in ${liveness_tests}; do
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echo "Liveness test: ${test}"
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${KUBECFG} -c ${KUBE_ROOT}/examples/liveness/${test}-liveness.yaml create pods
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waitForNotPending
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before=$(${KUBECFG} '-template={{.currentState.info.liveness.restartCount}}' get pods/liveness-${test})
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while [[ "${before}" == "<no value>" ]]; do
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before=$(${KUBECFG} '-template={{.currentState.info.liveness.restartCount}}' get pods/liveness-${test})
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done
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echo "Waiting for restarts."
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for i in $(seq 1 24); do
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sleep 10
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after=$(${KUBECFG} '-template={{.currentState.info.liveness.restartCount}}' get pods/liveness-${test})
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echo "Restarts: ${after} > ${before}"
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if [[ "${after}" == "<no value>" ]]; then
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continue
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fi
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if [[ "${after}" > "${before}" ]]; then
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break
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fi
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done
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if [[ "${before}" < "${after}" ]]; then
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continue
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fi
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echo "Unexpected absence of failures in ${test}"
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echo "Restarts before: ${before}."
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echo "Restarts after: ${after}"
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exit 1
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done
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exit 0
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