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Docker rant


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Slides for a short rant on Docker

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Docker rant

  1. 1. POST /v1.16/containers/ 0abe202395e4e61fc35f8f90e3432ad0f2fb 3d3816a79c367ff716ecb57965dc/resize? h=24&w=107 HTTP/1.1 Host: /var/run/docker.sock User-Agent: Docker-Client/1.4.0 Content-Length: 0 Content-Type: plain/text
  2. 2. "In the future, we expect new execution engine plugins to offer more choice and greater granularity for our security-focused users."
  3. 3. all this crap running as root
  4. 4. including the containers ran by unprivileged (not any more) users
  5. 5. „trusted” images
  6. 6. KISS
  7. 7. user namespaces completely unprivileged* containers in kernel 3.9+
  8. 8. remaining setuid bits lxc-user-nic a couple netlink packets if you need a private net with CAP_NET_ADMIN ! newuidmap a single write() newgidmap if you need multiple uids/gids
  9. 9.