Introduced a path level lock to synchronize updates
to /etc/hosts writes. A path level cache is maintained
to only synchronize only at the file level.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
This way we won't vendor test related functions in docker anymore.
It also moves netns related functions to a new ns package to be able to
call the ns init function in tests. I think this also helps with the
overall package isolation.
Signed-off-by: David Calavera <david.calavera@gmail.com>
There is no need to update the /etc/hosts files
of containers for endpoints which are created/deleted
in a network whose interface list is empty
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Currently the etchosts package only provides helpers
to completely build an /etc/hosts file from scratch
or update a single hostname's IP address to a different
one. This commit adds the ability to add/delete an arbitrary
number of host record entries to/from the etc hosts file
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
