Fixes posix compatibility for probes

Author: solsson

zookeeper/50pzoo.yml

@@ -66,13 +66,13 @@ spec:
             command:
             - /bin/sh
             - -c
-            - '[ "imok" == $(echo "ruok" | nc -w 1 127.0.0.1 2181) ]'
+            - '[ "imok" = "$(echo ruok | nc -w 1 127.0.0.1 2181)" ]'
         readinessProbe:
           exec:
             command:
             - /bin/sh
             - -c
-            - '[ "imok" == $(echo "ruok" | nc -w 1 127.0.0.1 2181) ]'
+            - '[ "imok" = "$(echo ruok | nc -w 1 127.0.0.1 2181)" ]'
         volumeMounts:
         - name: config
           mountPath: /usr/local/kafka/config

zookeeper/51zoo.yml

@@ -66,13 +66,13 @@ spec:
             command:
             - /bin/sh
             - -c
-            - '[ "imok" == $(echo "ruok" | nc -w 1 127.0.0.1 2181) ]'
+            - '[ "imok" = "$(echo ruok | nc -w 1 127.0.0.1 2181)" ]'
         readinessProbe:
           exec:
             command:
             - /bin/sh
             - -c
-            - '[ "imok" == $(echo "ruok" | nc -w 1 127.0.0.1 2181) ]'
+            - '[ "imok" = "$(echo ruok | nc -w 1 127.0.0.1 2181)" ]'
         volumeMounts:
         - name: config
           mountPath: /usr/local/kafka/config