revert

baseimg/tools/redis/Dockfile

+FROM alpine:3.4
+
+RUN apk add --no-cache redis sed bash
+
+COPY redis-master.conf /redis-master/redis.conf
+COPY redis-slave.conf /redis-slave/redis.conf
+COPY run.sh /run.sh
+
+CMD [ "/run.sh" ]
+
+ENTRYPOINT [ "bash", "-c" ]
\ No newline at end of file

baseimg/tools/redis/run.sh

+#!/bin/bash
+
+# Copyright 2014 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.
+
+function launchmaster() {
+  if [[ ! -e /redis-master-data ]]; then
+    echo "Redis master data doesn't exist, data won't be persistent!"
+    mkdir /redis-master-data
+  fi
+  redis-server /redis-master/redis.conf --protected-mode no
+}
+
+function launchsentinel() {
+  while true; do
+    master=$(redis-cli -h ${REDIS_SENTINEL_SERVICE_HOST} -p ${REDIS_SENTINEL_SERVICE_PORT} --csv SENTINEL get-master-addr-by-name mymaster | tr ',' ' ' | cut -d' ' -f1)
+    if [[ -n ${master} ]]; then
+      master="${master//\"}"
+    else
+      master=$(hostname -i)
+    fi
+
+    redis-cli -h ${master} INFO
+    if [[ "$?" == "0" ]]; then
+      break
+    fi
+    echo "Connecting to master failed.  Waiting..."
+    sleep 10
+  done
+
+  sentinel_conf=sentinel.conf
+
+  echo "sentinel monitor mymaster ${master} 6379 2" > ${sentinel_conf}
+  echo "sentinel down-after-milliseconds mymaster 60000" >> ${sentinel_conf}
+  echo "sentinel failover-timeout mymaster 180000" >> ${sentinel_conf}
+  echo "sentinel parallel-syncs mymaster 1" >> ${sentinel_conf}
+  echo "bind 0.0.0.0" >> ${sentinel_conf}
+
+  redis-sentinel ${sentinel_conf} --protected-mode no
+}
+
+function launchslave() {
+  while true; do
+    master=$(redis-cli -h ${REDIS_SENTINEL_SERVICE_HOST} -p ${REDIS_SENTINEL_SERVICE_PORT} --csv SENTINEL get-master-addr-by-name mymaster | tr ',' ' ' | cut -d' ' -f1)
+    if [[ -n ${master} ]]; then
+      master="${master//\"}"
+    else
+      echo "Failed to find master."
+      sleep 60
+      exit 1
+    fi 
+    redis-cli -h ${master} INFO
+    if [[ "$?" == "0" ]]; then
+      break
+    fi
+    echo "Connecting to master failed.  Waiting..."
+    sleep 10
+  done
+  sed -i "s/%master-ip%/${master}/" /redis-slave/redis.conf
+  sed -i "s/%master-port%/6379/" /redis-slave/redis.conf
+  redis-server /redis-slave/redis.conf --protected-mode no
+}
+
+if [[ "${MASTER}" == "true" ]]; then
+  launchmaster
+  exit 0
+fi
+
+if [[ "${SENTINEL}" == "true" ]]; then
+  launchsentinel
+  exit 0
+fi
+
+launchslave
\ No newline at end of file