Sometimes if we try to remove the cgroup directory too soon after killing the
sandbox we EBUSY. This CL adds a retry (up to 5 seconds) for removing.
Deflakes ChrootTest.
PiperOrigin-RevId: 217526909
Change-Id: I749bb172117e2298c9888ecad094072393b94810
Sandbox creation uses the limits and reservations configured in the
OCI spec and set cgroup options accordinly. Then it puts both the
sandbox and gofer processes inside the cgroup.
It also allows the cgroup to be pre-configured by the caller. If the
cgroup already exists, sandbox and gofer processes will join the
cgroup but it will not modify the cgroup with spec limits.
PiperOrigin-RevId: 216538209
Change-Id: If2c65ffedf55820baab743a0edcfb091b89c1019
Nicolas Lacasse
Fabricio Voznika