Add redis cluster config

Issue-ID: DCAEGEN2-245
Change-Id: I1ed2d9e1bd7ae37e1772eaaa8da5fd6875e3e5cd
Signed-off-by: Lusheng Ji <lji@research.att.com>

2 files changed, 45 insertions, 2 deletions

diff --git a/redis-cluster-container/Dockerfile b/redis-cluster-container/Dockerfile
index 0892ced..082b272 100644
--- a/redis-cluster-container/Dockerfile
+++ b/redis-cluster-container/Dockerfile
@@ -17,11 +17,14 @@ FROM redis:4.0.8
 ENV DEBIAN_FRONTEND noninteractive
 RUN apt-get -y update \
   && apt-get -y upgrade \
-  && apt-get -y --no-install-recommends install ruby wget \
+  && apt-get -y --no-install-recommends install ruby wget jq \
   && gem install redis -v 3.3.5 \
   && apt-get -y autoremove \
   && apt-get -y clean
 RUN wget -O /usr/local/bin/redis-trib http://download.redis.io/redis-stable/src/redis-trib.rb
 RUN sed -i -e 's/yes_or_die \"/#yes_or_die \"/g' /usr/local/bin/redis-trib
 RUN chmod 755 /usr/local/bin/redis-trib
-CMD redis-server
+COPY redis-server-config.sh /usr/local/bin/redis-server-config.sh
+RUN chmod 755 /usr/local/bin/redis-server-config.sh
+#CMD redis-server
+CMD redis-server-config.sh
diff --git a/redis-cluster-container/redis-server-config.sh b/redis-cluster-container/redis-server-config.sh
new file mode 100755
index 0000000..29ab843
--- /dev/null
+++ b/redis-cluster-container/redis-server-config.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# ================================================================================
+# Copyright (c) 2018 AT&T Intellectual Property. 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.
+# ============LICENSE_END=========================================================
+
+
+if [[ "$HOSTNAME" == *redis-cluster-0 ]]; then
+  {
+  NODES=""
+  echo "====> wait for all 6 redis pods up"
+  while [ "$(echo $NODES | wc -w)" -lt 6 ]
+  do
+    echo "======> $(echo $NODES |wc -w) / 6 pods up"
+    sleep 5
+    RESP=$(wget -vO- --ca-certificate /var/run/secrets/kubernetes.io/serviceaccount/ca.crt  --header "Authorization: Bearer $(</var/run/secrets/kubernetes.io/serviceaccount/token)" https://$KUBERNETES_SERVICE_HOST:$KUBERNETES_PORT_443_TCP_PORT/api/v1/namespaces/default/pods?labelSelector=name=onap-dcaegen2-redis-cluster)
+    NODES=$(echo $RESP | jq -r '.items[].status.podIP + ":6379"')
+  done
+  echo "====> all 6 redis cluster pods are up. wait 10 seconds before the next step"; echo
+  sleep 10
+
+  echo "====> Configure the cluster"
+
+  # we might want NODES w/o quotes
+  redis-trib create --replicas 1 $NODES
+  } &
+fi
+
+redis-server