[kkapelon]

>My point was that Docker purports to solve the sandboxing and security problems.

Says who? The article I linked to you says nothing about security.

>Docker failed at security.

If somebody thinks security is the strong feature of Docker he/she is misinformed.

>For the vast majority Docker is just a nice and easy-to-use packaging format

For the vast majority of who? Developers? Sys admins? PMs?

The big advantage of docker is the self-contained environment for CI builds.