Added --selinux-enable switch to daemon to enable SELinux labeling.
The daemon will now generate a new unique random SELinux label when a
container starts, and remove it when the container is removed. The MCS
labels will be stored in the daemon memory. The labels of containers will
be stored in the container.json file.
When the daemon restarts on boot or if done by an admin, it will read all containers json files and reserve the MCS labels.
A potential problem would be conflicts if you setup thousands of containers,
current scheme would handle ~500,000 containers.
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: crosbymichael)
This has every container using the docker daemon's pid for the processes
label so it does not work correctly.
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
container.Kill() might read a pid of 0 from
container.State.Pid due to losing a race with
container.monitor() calling
container.State.SetStopped(). Sending a SIGKILL to
pid 0 is undesirable as "If pid equals 0, then sig
is sent to every process in the process group of
the calling process."
Docker-DCO-1.1-Signed-off-by: Daniel Norberg <daniel.norberg@gmail.com> (github: danielnorberg)
Michael Crosby