Fix redis in azure-pipeline

Author: kellyyeh

.azure-pipelines/build.yml

@@ -43,6 +43,9 @@ jobs:
           libnl-genl-3-dev \
           libnl-nf-3-dev \
           redis-server
+      sudo sed -ri 's/^# unixsocket/unixsocket/' /etc/redis/redis.conf
+      sudo sed -ri 's/^unixsocketperm .../unixsocketperm 777/' /etc/redis/redis.conf
+      sudo sed -ri 's/redis-server.sock/redis.sock/' /etc/redis/redis.conf
       sudo service redis-server start
 
     displayName: "Install dependencies"