From c60d99ce5690fe5eb64c7e89d995f4b9f55852de Mon Sep 17 00:00:00 2001
From: Staffan Olsson <staffan@repos.se>
Date: Mon, 26 Dec 2016 00:12:43 +0100
Subject: Manages to set zk node id without altering the official image, but
 leader-election port bind fails when using DNS name instead of 0.0.0.0

---
 zookeeper/init/on-start.sh | 73 ----------------------------------------------
 1 file changed, 73 deletions(-)
 delete mode 100755 zookeeper/init/on-start.sh

(limited to 'zookeeper/init/on-start.sh')

diff --git a/zookeeper/init/on-start.sh b/zookeeper/init/on-start.sh
deleted file mode 100755
index 392b82a..0000000
--- a/zookeeper/init/on-start.sh
+++ /dev/null
@@ -1,73 +0,0 @@
-#! /bin/bash
-
-# Copyright 2016 The Kubernetes Authors 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.
-
-# 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.
-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 "" > "${CFG_BAK}"
-i=0
-for peer in "${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" >> "${CFG_BAK}"
-    else
-      echo "server.${i}=${peer}:2888:3888:participant;2181" >> "${CFG_BAK}"
-    fi
-done
-
-# 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} ${CFG}
-
-# TODO: zkServer-initialize is the safe way to handle changes to datadir
-# because simply starting will create a new datadir, BUT if the user changed
-# pod template they might end up with 2 datadirs and brief split brain.
-/opt/zookeeper/bin/zkServer.sh start
-
-# TODO: We shouldn't need to specify the address of the master as long as
-# there's quorum. According to the docs the new server is just not allowed to
-# vote, it's still allowed to propose config changes, and it knows the
-# existing members of the ensemble from *its* config. This works as expected,
-# but we should correlate with more satisfying empirical evidence.
-/opt/zookeeper/bin/zkCli.sh reconfig -add "server.$MY_ID=$MY_NAME:2888:3888:participant;2181"
-/opt/zookeeper/bin/zkServer.sh stop
-- 
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