push unstable image (#111)

* move checkout and move to master into containers node

* use elifePipeline

* push unstable image

Jenkinsfile

-elifeLibrary {
-    def commit
+elifePipeline {
+    node('containers-jenkins-plugin') {
+        def commit
 
-    stage 'Checkout', {
-        checkout scm
-        commit = elifeGitRevision()
-    }
+        stage 'Checkout', {
+            checkout scm
+            commit = elifeGitRevision()
+        }
 
-    node('containers-jenkins-plugin') {
         stage 'Build and run tests', {
             checkout scm
             try {
@@ -15,11 +15,18 @@ elifeLibrary {
                 sh "make ci-clean"
             }
         }
-    }
 
-    elifeMainlineOnly {
-        stage 'Merge to master', {
-            elifeGitMoveToBranch commit, 'master'
+        elifeMainlineOnly {
+            stage 'Merge to master', {
+                elifeGitMoveToBranch commit, 'master'
+            }
+
+            stage 'Push unstable image', {
+                def image = DockerImage.elifesciences(this, 'sciencebeam-gym', commit)
+                def unstable_image = image.addSuffixAndTag('_unstable', commit)
+                unstable_image.tag('latest').push()
+                unstable_image.push()
+            }
         }
     }
 }