vendor files

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/BASEIMAGE

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+amd64=gcr.io/google-containers/debian-base-amd64:0.3
+arm=gcr.io/google-containers/debian-base-arm:0.3
+arm64=gcr.io/google-containers/debian-base-arm64:0.3
+ppc64le=gcr.io/google-containers/debian-base-ppc64le:0.3

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/Dockerfile

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+# Copyright 2016 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.
+
+# TODO: get rid of bash dependency and switch to plain busybox.
+# The tar in busybox also doesn't seem to understand compression.
+FROM BASEIMAGE
+
+CROSS_BUILD_COPY qemu-QEMUARCH-static /usr/bin/
+
+RUN clean-install wget netcat
+
+ADD on-start.sh /
+
+COPY peer-finder /
+
+# See README.md
+RUN wget -q -O /zookeeper-3.5.0-alpha.tar.gz http://apache.mirrors.pair.com/zookeeper/zookeeper-3.5.0-alpha/zookeeper-3.5.0-alpha.tar.gz && \
+    tar -xzf /zookeeper-3.5.0-alpha.tar.gz -C /tmp/ && mv /tmp/zookeeper-3.5.0-alpha /zookeeper && rm /zookeeper-3.5.0-alpha.tar.gz
+
+ADD install.sh /
+RUN chmod -c 755 /install.sh /on-start.sh /peer-finder
+Entrypoint ["/install.sh"]

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/Makefile

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+# Copyright 2016 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.
+
+SRCS = peer-finder
+ARCH ?= amd64
+TARGET ?= $(CURDIR)
+GOLANG_VERSION ?= latest
+SRC_DIR = pets/peer-finder
+export
+
+bin:
+	../../image-util.sh bin $(SRCS)
+
+.PHONY: bin

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/README.md

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+# Zookeeper statefulset e2e tester
+
+The image in this directory is the init container for contrib/pets/zookeeper but for one difference, it bakes a specific version of zookeeper into the base image so we get deterministic test results without having to depend on a zookeeper download server. Discussing the tradeoffs to either approach (download the version at runtime, or maintain an image per version) are outside the scope of this document.
+
+You can execute the image locally via:
+```
+$ docker run -it gcr.io/google_containers/zookeeper-install-3.5.0-alpha:e2e --cmd --install-into=/opt --work-dir=/work-dir
+```
+To share the installation with other containers mount the appropriate volumes as `--install-into` and `--work-dir`, where `install-into` is the directory to install zookeeper into, and `work-dir` is the directory to install the user/admin supplied on-{start,change} hook scripts.
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/test/images/pets/zookeeper/README.md?pixel)]()

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/VERSION

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+1.1

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/install.sh

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+#! /bin/bash
+
+# Copyright 2016 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.
+
+# This volume is assumed to exist and is shared with parent of the init
+# container. It contains the zookeeper installation.
+INSTALL_VOLUME="/opt"
+
+# This volume is assumed to exist and is shared with the peer-finder
+# init container. It contains on-start/change configuration scripts.
+WORKDIR_VOLUME="/work-dir"
+
+# As of April-2016 is 3.4.8 is the latest stable, but versions 3.5.0 onward
+# allow dynamic reconfiguration.
+VERSION="3.5.0-alpha"
+
+for i in "$@"
+do
+case $i in
+    -i=*|--install-into=*)
+    INSTALL_VOLUME="${i#*=}"
+    shift
+    ;;
+    -w=*|--work-dir=*)
+    WORKDIR_VOLUME="${i#*=}"
+    shift
+    ;;
+    *)
+    # unknown option
+    ;;
+esac
+done
+
+echo installing config scripts into "${WORKDIR_VOLUME}"
+mkdir -p "${WORKDIR_VOLUME}"
+cp /on-start.sh "${WORKDIR_VOLUME}"/
+cp /peer-finder "${WORKDIR_VOLUME}"/
+
+echo installing zookeeper-"${VERSION}" into "${INSTALL_VOLUME}"
+mkdir -p "${INSTALL_VOLUME}"
+mv /zookeeper "${INSTALL_VOLUME}"/zookeeper
+cp "${INSTALL_VOLUME}"/zookeeper/conf/zoo_sample.cfg "${INSTALL_VOLUME}"/zookeeper/conf/zoo.cfg
+
+# TODO: Should dynamic config be tied to the version?
+IFS="." read -ra RELEASE <<< "${VERSION}"
+if [ $(expr "${RELEASE[1]}") -gt 4 ]; then
+    echo zookeeper-"${VERSION}" supports dynamic reconfiguration, enabling it
+    echo "standaloneEnabled=false" >> "${INSTALL_VOLUME}"/zookeeper/conf/zoo.cfg
+    echo "dynamicConfigFile="${INSTALL_VOLUME}"/zookeeper/conf/zoo.cfg.dynamic" >> "${INSTALL_VOLUME}"/zookeeper/conf/zoo.cfg
+fi
+
+# TODO: This is a hack, netcat is convenient to have in the zookeeper container
+# I want to avoid using a custom zookeeper image just for this. So copy it.
+NC=$(which nc)
+if [ "${NC}" != "" ]; then
+    echo copying nc into "${INSTALL_VOLUME}"
+    cp "${NC}" "${INSTALL_VOLUME}"
+fi

vendor/k8s.io/kubernetes/test/images/pets/zookeeper-installer/on-start.sh

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+#! /bin/bash
+
+# Copyright 2016 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 -eo pipefail
+
+# This script configures zookeeper cluster member ship for version of zookeeper
+# >= 3.5.0. It should not be used with the on-change.sh script in this example.
+# As of April-2016 is 3.4.8 is the latest stable.
+
+# Both /opt and /tmp/zookeeper are assumed to be volumes shared with the parent.
+# The format of each line in the dynamic config file is:
+# server.<1 based index>=<server-dns-name>:<peer port>:<election port>[:role];[<client port address>:]<client port>
+# <1 based index> is the server index that matches the id in datadir/myid
+# <peer port> is the port on which peers communicate to agree on updates
+# <election port> is the port used for leader election
+# [:role] can be set to observer, participant by default
+# <client port address> is optional and defaults to 0.0.0.0
+# <client port> is the port on which the server accepts client connections
+
+CFG=/opt/zookeeper/conf/zoo.cfg.dynamic
+CFG_BAK=/opt/zookeeper/conf/zoo.cfg.bak
+MY_ID_FILE=/tmp/zookeeper/myid
+HOSTNAME=$(hostname)
+
+while read -ra LINE; do
+    PEERS=("${PEERS[@]}" $LINE)
+done
+
+# Don't add the first member as an observer
+if [ ${#PEERS[@]} -eq 1 ]; then
+    # We need to write our index in this list of servers into MY_ID_FILE.
+    # Note that this may not always coincide with the hostname id.
+    echo 1 > "${MY_ID_FILE}"
+    echo "server.1=${PEERS[0]}:2888:3888;2181" > "${CFG}"
+    # TODO: zkServer-initialize is the safe way to handle changes to datadir
+    # because simply starting will create a new datadir, BUT if the user changed
+    # pod template they might end up with 2 datadirs and brief split brain.
+    exit
+fi
+
+# Every subsequent member is added as an observer and promoted to a participant
+echo "" > "${CFG_BAK}"
+i=0
+LEADER=$HOSTNAME
+for peer in "${PEERS[@]}"; do
+    let i=i+1
+    if [[ "${peer}" == *"${HOSTNAME}"* ]]; then
+      MY_ID=$i
+      MY_NAME=${peer}
+      echo $i > "${MY_ID_FILE}"
+      echo "server.${i}=${peer}:2888:3888:observer;2181" >> "${CFG_BAK}"
+    else
+      if [[ $(echo srvr | /opt/nc "${peer}" 2181 | grep Mode) = "Mode: leader" ]]; then
+        LEADER="${peer}"
+      fi
+      echo "server.${i}=${peer}:2888:3888:participant;2181" >> "${CFG_BAK}"
+    fi
+done
+
+# zookeeper won't start without myid anyway.
+# This means our hostname wasn't in the peer list.
+if [ ! -f "${MY_ID_FILE}" ]; then
+  exit 1
+fi
+
+# Once the dynamic config file is written it shouldn't be modified, so the final
+# reconfigure needs to happen through the "reconfig" command.
+cp ${CFG_BAK} ${CFG}
+
+# TODO: zkServer-initialize is the safe way to handle changes to datadir
+# because simply starting will create a new datadir, BUT if the user changed
+# pod template they might end up with 2 datadirs and brief split brain.
+/opt/zookeeper/bin/zkServer.sh start
+
+# TODO: We shouldn't need to specify the address of the master as long as
+# there's quorum. According to the docs the new server is just not allowed to
+# vote, it's still allowed to propose config changes, and it knows the
+# existing members of the ensemble from *its* config.
+ADD_SERVER="server.$MY_ID=$MY_NAME:2888:3888:participant;0.0.0.0:2181"
+/opt/zookeeper/bin/zkCli.sh reconfig -s "${LEADER}":2181 -add "${ADD_SERVER}"
+
+# Prove that we've actually joined the running cluster
+ITERATION=0
+until $(echo config | /opt/nc localhost 2181 | grep "${ADD_SERVER}" > /dev/null); do
+  echo $ITERATION] waiting for updated config to sync back to localhost
+  sleep 1
+  let ITERATION=ITERATION+1
+  if [ $ITERATION -eq 20 ]; then
+    exit 1
+  fi
+done
+
+/opt/zookeeper/bin/zkServer.sh stop