Merge pull request #6303 from roberthbailey/liveness-sh

hack/e2e-suite/liveness.sh

-#!/bin/bash
-
-# Copyright 2014 Google Inc. All rights reserved.
-#
-# 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.
-
-# Launches a container and verifies it can be reached. Assumes that
-# we're being called by hack/e2e-test.sh (we use some env vars it sets up).
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
-
-: ${KUBE_VERSION_ROOT:=${KUBE_ROOT}}
-: ${KUBECTL:="${KUBE_VERSION_ROOT}/cluster/kubectl.sh"}
-: ${KUBE_CONFIG_FILE:="config-test.sh"}
-
-export KUBECTL KUBE_CONFIG_FILE
-
-source "${KUBE_ROOT}/cluster/kube-env.sh"
-source "${KUBE_VERSION_ROOT}/cluster/${KUBERNETES_PROVIDER}/util.sh"
-
-prepare-e2e
-
-liveness_tests="http exec"
-if [[ ${KUBERNETES_PROVIDER} == "gke" ]]; then
-  server_version=$(kube_server_version)
-  if [[ ${server_version} -le 702 ]]; then
-    echo "GKE server version <= 0.7.2, limiting test to http (version = ${server_version})"
-    liveness_tests="http"
-  fi
-fi
-
-function teardown() {
-  echo "Cleaning up test artifacts"
-  for test in ${liveness_tests}; do
-    ${KUBECTL} delete pods liveness-${test}
-  done
-}
-
-function waitForNotPending() {
-  pod_id_list=$(${KUBECTL} get pods -o template '--template={{range.items}}{{.id}} {{end}}' -l test=liveness)
-  # Pod turn up on a clean cluster can take a while for the docker image pull.
-  all_running=0
-  for i in $(seq 1 24); do
-    echo "Waiting for pod to come up."
-    sleep 5
-    all_running=1
-    for id in $pod_id_list; do
-      current_status=$(${KUBECTL} get pods $id -o template '--template={{.currentState.status}}') || true
-      if [[ "$current_status" == "Pending" ]]; then
-        all_running=0
-        break
-      fi
-    done
-    if [[ "${all_running}" == 1 ]]; then
-      break
-    fi
-  done
-  if [[ "${all_running}" == 0 ]]; then
-    echo "Pods did not come up in time"
-    exit 1
-  fi
-}
-
-trap "teardown" EXIT
-
-for test in ${liveness_tests}; do
-  echo "Liveness test: ${test}"
-  ${KUBECTL} create -f ${KUBE_ROOT}/examples/liveness/${test}-liveness.yaml
-  waitForNotPending
-
-  before=$(${KUBECTL} get pods "liveness-${test}" -o template '--template={{.currentState.info.liveness.restartCount}}')
-  while [[ "${before}" == "<no value>" ]]; do
-    before=$(${KUBECTL} get pods "liveness-${test}" -o template '--template={{.currentState.info.liveness.restartCount}}')
-  done
-
-  echo "Waiting for restarts."
-  for i in $(seq 1 24); do
-    sleep 10
-    after=$(${KUBECTL} get pods "liveness-${test}" -o template '--template={{.currentState.info.liveness.restartCount}}')
-    echo "Restarts: ${after} > ${before}"
-    if [[ "${after}" == "<no value>" ]]; then
-      continue
-    fi
-    if [[ "${after}" > "${before}" ]]; then
-      break
-    fi
-  done
-
-  if [[ "${before}" < "${after}" ]]; then
-    continue
-  fi
-
-  echo "Unexpected absence of failures in ${test}"
-  echo "Restarts before: ${before}."
-  echo "Restarts after: ${after}"
-  exit 1
-done
-
-exit 0