According to https://www.elastic.co/guide/en/kibana/current/docker.html the Docker image of Kibana:5 includes x-pack.
I accidentally built a container based on kibana:5 and installed x-pack manually. Comparing this with the stock kibana:5 shows x-pack in my image, and missing in the official image.
Is this a known bug? I cannot even see within the official Dockerfile where x-pack might be installed...
P.S. if I use my own image with x-pack, I cannot launch due to file permission problems.