Code fixes

vars/dockerDeploy.groovy

@@ -1,13 +1,8 @@
 #!/usr/bin/env groovy
 
 def call() {
-    environment {
-        CREDS = credentials('docker-registry')
-    }
-    steps {
     sh 'docker-compose build --parallel'
-        sh 'docker login --username $CREDS_USR --password $CREDS_PSW $REGISTRY'
+    sh 'docker login --username $CREDENTIALS_USR --password $CREDENTIALS_PSW $REGISTRY'
     sh 'docker-compose push'
     sh 'docker stack deploy --with-registry-auth --prune --compose-file docker-compose.yml $PROJECT_NAME'
-    }
 }