redis-unstable cluster docker (#1889)

docker/base/Dockerfile.cluster

@@ -6,4 +6,4 @@ RUN chmod +x /create_cluster.sh
 
 EXPOSE 16379 16380 16381 16382 16383 16384
 
-CMD [ "/create_cluster.sh"]
+CMD /create_cluster.sh  16379  16384

docker/base/Dockerfile.unstable_cluster

@@ -0,0 +1,9 @@
+# produces redisfab/redis-py-cluster:6.2.6
+FROM redisfab/redis-py:unstable-bionic
+
+COPY create_cluster.sh /create_cluster.sh
+RUN chmod +x /create_cluster.sh
+
+EXPOSE 6372 6373 6374 6375 6376 6377
+
+CMD /create_cluster.sh  6372 6377

docker/base/create_cluster.sh

@@ -1,7 +1,9 @@
 #! /bin/bash
 mkdir -p /nodes
 touch /nodes/nodemap
-for PORT in $(seq 16379 16384); do
+START_NODE=$1
+END_NODE=$2
+for PORT in `seq ${START_NODE} ${END_NODE}`; do
   mkdir -p /nodes/$PORT
   if [[ -e /redis.conf ]]; then
     cp /redis.conf /nodes/$PORT/redis.conf
@@ -22,5 +24,5 @@ EOF
   fi
   echo 127.0.0.1:$PORT >> /nodes/nodemap
 done
-echo yes | redis-cli --cluster create $(seq -f 127.0.0.1:%g 16379 16384) --cluster-replicas 1
+echo yes | redis-cli --cluster create $(seq -f 127.0.0.1:%g ${START_NODE} ${END_NODE}) --cluster-replicas 1
 tail -f /redis.log

docker/unstable_cluster/redis.conf

@@ -0,0 +1,4 @@
+# Redis Cluster config file will be shared across all nodes.
+# Do not change the following configurations that are already set:
+# port, cluster-enabled, daemonize, logfile, dir
+protected-mode no

tox.ini

@@ -41,6 +41,19 @@ healtcheck_cmd = python -c "import socket;print(True) if 0 == socket.socket(sock
 volumes =
     bind:rw:{toxinidir}/docker/unstable/redis.conf:/redis.conf
 
+[docker:unstable_cluster]
+name = unstable_cluster
+image = redisfab/redis-py-cluster:unstable-bionic
+ports =
+    6372:6372/tcp
+    6373:6373/tcp
+    6374:6374/tcp
+    6375:6375/tcp
+    6376:6376/tcp
+    6377:6377/tcp
+healtcheck_cmd = python -c "import socket;print(True) if all([0 == socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect_ex(('127.0.0.1',port)) for port in range(6372,6377)]) else False"
+volumes =
+    bind:rw:{toxinidir}/docker/cluster/redis.conf:/redis.conf
 
 [docker:sentinel_1]
 name = sentinel_1
@@ -118,6 +131,7 @@ deps =
     -r {toxinidir}/dev_requirements.txt
 docker =
     unstable
+    unstable_cluster
     master
     replica
     sentinel_1