Add mysql docker build

Change-Id: Ica193e1d9be7e1d9f307c9b8bd4696d46e4f5e8f
diff --git a/jenkins/client/job/docker/init.yml b/jenkins/client/job/docker/init.yml
index 2f1f49a..1685748 100644
--- a/jenkins/client/job/docker/init.yml
+++ b/jenkins/client/job/docker/init.yml
@@ -34,6 +34,10 @@
               branch: "master"
               tags: "latest"
               dockerfile: "image/Dockerfile"
+            - name: mysql
+              branch: "master"
+              tags: "5.6 latest"
+              dockerfile: "5.6/Dockerfile"
           template:
             discard:
               build:
@@ -83,4 +87,4 @@
                 default: "dockerhub"
               DOCKER_GIT_TAG:
                 type: boolean
-                default: "true"
\ No newline at end of file
+                default: "true"