Adding a slave_image_tag parameter (#66)

* Adding a slave_image_tag parameter

This will allow us to use the image tag to make sure we can set specific slave versions.

* Adding SLAVE_IMAGE_TAG to slave-pod template

Author: Logan Donley

openshift-templates/jenkins-slave-pod/template-with-secret.json

@@ -23,7 +23,7 @@
                     {
                         "from": {
                             "kind": "DockerImage",
-                            "name": "openshift/jenkins-slave-base-rhel7:latest"
+                            "name": "openshift/jenkins-slave-base-rhel7:${SLAVE_IMAGE_TAG}"
                         },
                         "generation": 2,
                         "importPolicy": {},
@@ -147,6 +147,12 @@
 	    "displayName": "Image name from which to build this pod",
 	    "description": "The build image which this build pod will extend to create it's new build pod type.",
 	    "value": "jenkins-slave-base-rhel7"
+	},
+        {
+	    "name": "SLAVE_IMAGE_TAG",
+	    "displayName": "Image tag for Jenkins slave.",
+	    "description": "This is the image tag used for the Jenkins slave.",
+	    "value": "latest"
 	}
     ],
     "labels": {

openshift-templates/jenkins-slave-pod/template.json

@@ -23,7 +23,7 @@
                     {
                         "from": {
                             "kind": "DockerImage",
-                            "name": "openshift/jenkins-slave-base-rhel7:latest"
+                            "name": "openshift/jenkins-slave-base-rhel7:${SLAVE_IMAGE_TAG}"
                         },
                         "generation": 2,
                         "importPolicy": {},
@@ -138,9 +138,15 @@
             "displayName": "Image name from which to build this pod",
             "description": "The build image which this build pod will extend to create it's new build pod type.",
             "value": "jenkins-slave-base-rhel7"
+        },
+        {
+            "name": "SLAVE_IMAGE_TAG",
+            "displayName": "Image tag for Jenkins slave.",
+            "description": "This is the image tag used for the Jenkins slave.",
+            "value": "latest"
         }
     ],
     "labels": {
         "template": "build-pod-template"
     }
-}
+}