pin Portainer Update to CE Version only

block update from Portainer when not CE Version is installed.

Author: sgaert

ct/docker.sh

@@ -47,7 +47,7 @@ function update_script() {
     msg_ok "Docker Compose updated"
   fi
 
-  if docker ps -a --format '{{.Names}}' | grep -q '^portainer$'; then
+  if docker ps -a --format '{{.Image}}' | grep -q '^portainer/portainer-ce:latest$'; then
     msg_info "Updating Portainer"
     $STD docker pull portainer/portainer-ce:latest
     $STD docker stop portainer && docker rm portainer