Add proper readiness probe

Also remove liveness one as it does nothing

Depends-On: I8b74906ba3b5cc358f51831d1f87a8a7f0335f02
Depends-On: I2e8aaeeabcb0c2ddfcf605008763a7a938a578b4
Change-Id: I6a59b65966369f2e08e1b3ff3de9ceda703cd26e

service/keystone.yaml

@@ -7,10 +7,10 @@ service:
     - name: keystone
       image: keystone
       probes:
-        readiness: "true"
-        liveness:
-          command: "true"
-          type: "exec"
+        readiness:
+          type: "httpGet"
+          port: {{ keystone.admin_port.cont }}
+          path: "/"
       volumes:
         - name: keystone-logs
           path: "/var/log/ccp/keystone"