Copy content of the workspace directory

Change-Id: I76726e87dbf76bf0b9b4b2d8bada683e8e983dfe
diff --git a/test-nodejs-pipeline.groovy b/test-nodejs-pipeline.groovy
index 87b78d3..30ea642 100644
--- a/test-nodejs-pipeline.groovy
+++ b/test-nodejs-pipeline.groovy
@@ -37,7 +37,7 @@
                 returnStdout: true,
             ).trim()
             common.successMsg("Container with id ${containerId} started.")
-            sh("docker cp ${workspace}/ ${containerId}:/opt/workspace/")
+            sh("docker cp ${workspace}/. ${containerId}:/opt/workspace/")
         }
         executeCmd(containerId, "npm install")
         def cmds = COMMANDS.tokenize('\n')