diff --git a/redis/3-highly-available/README.md b/redis/3-highly-available/README.md
index b8995610..1e7d2bfd 100644
--- a/redis/3-highly-available/README.md
+++ b/redis/3-highly-available/README.md
@@ -74,9 +74,7 @@ tasks:
                 cpu: 250m
                 memory: 500Mi
             command:
-              - /bin/bash
-              - -c
-              - 'container run_master_and_sentinel'
+              - container run_master_and_sentinel
             environment_variables:
               REDIS_SENTINEL_SERVICE_HOST: ''
           deployment_strategy:
@@ -181,5 +179,5 @@ tasks:
       image:
         image: quay.io/continuouspipe/redis3-highly-available:stable
       commands:
-        - /bin/bash -c 'container master_failover_and_sentinel_cleanup'
+        - container master_failover_and_sentinel_cleanup
 ```
diff --git a/redis/3-highly-available/usr/local/share/redis_functions.sh b/redis/3-highly-available/usr/local/share/redis_functions.sh
index 5e2794a8..3cf4849a 100644
--- a/redis/3-highly-available/usr/local/share/redis_functions.sh
+++ b/redis/3-highly-available/usr/local/share/redis_functions.sh
@@ -2,7 +2,7 @@
 
 function sentinel_command()
 {
-  redis-cli -h redis-sentinel -p 26379 --csv SENTINEL
+  redis-cli -h redis-sentinel -p 26379 --csv SENTINEL "$@"
 }
 
 function get_existing_master()
@@ -49,7 +49,12 @@ function sentinel_cleanup()
     echo "> Waiting for the sentinel to receive data from the other sentinels"
     sleep 11s
     echo "> Resetting sentinel data for $sentinel"
-    redis-cli -h "$sentinel" -p 26379 SENTINEL RESET mymaster
+
+    if test_remote_ports "$sentinel:26379"; then
+      redis-cli -h "$sentinel" -p 26379 SENTINEL RESET mymaster
+    else
+      echo "> Sentinel $sentinel doesn't appear to be active any more"
+    fi
   done
 }