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It seems that netlink in older kernels, including RHEL6, does not support RTM_SETLINK with IFLA_MASTER. It just silently ignores it, reporting no error, causing netlink.NetworkSetMaster() to not do anything yet return no error. We fix this by introducing and using AddToBridge() in a very similar manner to CreateBridge(), which use the old ioctls directly. This fixes https://github.com/dotcloud/docker/issues/4668 Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson) Upstream-commit: 59c1b2880be8fb9d9a632fa42a10097c1580591a Component: engine
pkg/ is a collection of utility packages used by the Docker project without being specific to its internals.
Utility packages are kept separate from the docker core codebase to keep it as small and concise as possible. If some utilities grow larger and their APIs stabilize, they may be moved to their own repository under the Docker organization, to facilitate re-use by other projects. However that is not the priority.
The directory pkg is named after the same directory in the camlistore project. Since Brad is a core
Go maintainer, we thought it made sense to copy his methods for organizing Go code :) Thanks Brad!
Because utility packages are small and neatly separated from the rest of the codebase, they are a good place to start for aspiring maintainers and contributors. Get in touch if you want to help maintain them!