Fixed #266 Externalize version tag so it is based on GitHub tag when deployed to production (GRN-1) (#292)

* Update Jenkinsfile

* updating Jenkinsfile

* updating version in Jenkins

* Update version.rb

Jenkinsfile

@@ -61,10 +61,12 @@ volumes: [
           withCredentials([file(credentialsId: 'cloud-datastore-user-account-creds', variable: 'FILE'), string(credentialsId: 'DOCKER_USER', variable: 'DOCKER_USER'), string(credentialsId: 'DOCKER_PASSWORD', variable: 'DOCKER_PASSWORD')]) {
             sh "gcloud auth activate-service-account --key-file=$FILE"
             if (stageBuild) {
+              sh "sed -i 's/VERSION =.*/VERSION = \"${gitBranch}\"/g' config/initializers/version.rb"
               sh "gcloud docker -- build -t ${imageTag} -t 'bigbluebutton/${appName}:master' . && gcloud docker -- push ${imageTag}"
               sh "docker login -u $DOCKER_USER -p $DOCKER_PASSWORD"
               sh "docker push 'bigbluebutton/${appName}:master'"
             } else if (releaseBuild) {
+              sh "sed -i 's/VERSION =.*/VERSION = \"${gitTag.substring(8)}\"/g' config/initializers/version.rb"
               imageTag = "gcr.io/${project}/${appName}:${gitTag}"
               sh "gcloud docker -- build -t ${imageTag} -t 'bigbluebutton/${appName}:${greenlightVersion}' -t 'bigbluebutton/${appName}:${gitTag}' . && gcloud docker -- push ${imageTag}"
               sh "docker login -u $DOCKER_USER -p $DOCKER_PASSWORD"
@@ -91,4 +93,4 @@ volumes: [
        slackSend (color: '#FF0000', message: "FAILED: Job '${env.JOB_NAME} [${env.BUILD_NUMBER}]' message: ${e} (${env.BUILD_URL})")
     }
   }
-}
+}

config/initializers/version.rb

@@ -2,6 +2,6 @@
 
 module Greenlight
   class Application
-    VERSION = "2.0.0"
+    VERSION = "2"
   end
 end