This allows other packages and plugins to easily exec things without
racing with the reaper.
The reaper is mostly needed in the shim but can be removed in containerd
in favor of the `exec.Cmd` apis
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This subreaper should always be turned on for containerd unless
explicitly needed for it to be off.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
To reduce the binary size of containerd, we no longer import the
`server` package for only a few defaults. This reduces the size of `ctr`
by 2MB. There are probably other gains elsewhere.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
This adds a config option to place the `containerd` daemon process into
a cgroup so that proper resource usage and accounting can be applied.
It defaults to not being place inside a cgroup and will create a new
cgroup if the `path` does not exist in the config or join an existing
`path` if it already exists.
```toml
[cgroup]
path = "/containerd"
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
