Prior to this patch, when list containers by "ctr containers" or
"ctr containers xxx", it will not get the proper status of conatinser(s).
That was caused by the wrong implementation of State() for structure process,
it only send a signal "0" to ping the "init" process and do nothing.
Since the OCI/runc has implemented an interface Status(), we can use that.
And I think this is more compatible with the design for containerd:
- containerd -> runtime -> fun()
Signed-off-by: Hu Keping <hukeping@huawei.com>
This currently depends on a runc PR:
https://github.com/opencontainers/runc/pull/703
We need this pr because we have to SIGKILL runc and the container root
dir will still be left around.
As for the containerd changes this adds a flag to containerd so that you
can configure the timeout without any more code changes. It also adds
better handling in the error cases and will kill the containerd-shim and
runc ( as well as the user process if it exists ) if the timeout is hit.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This allows you to pass options like:
```bash
containerd --debug --runtime-args "--debug" --runtime-args
"--systemd-cgroup"
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
If containerd binary is renamed to docker-containerd, then it should
invoke the docker-containerd-shim binary.
Signed-off-by: Tibor Vass <tibor@docker.com>
If we fail to exec a process make sure that it is cleaned up within the
container's information and on disk state.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
If the shim gets sigkilled while containerd is down we need to be able
to remove the container correctly so that it does not stay in a stopped
state forever.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Signed-off-by: John Howard <jhoward@microsoft.com>
Move process sorter to new file
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Sort containers by id
This will not be the most accurate sorting but atleast the list will be
consistent inbetween calls.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Allow runtime to be configurable via daemon start
This allows people to pass an alternate name or location to the runtime
binary to start containers.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fix state output for containers
Return the proper state/status for a container by checking if the pid is
still alive. Also fix the cleanup handling in the shim to make sure
containers are not left behind.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Properly wait for container start
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Remove runtime files from containerd
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Update supervisor for orphaned containers
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Remove ctr/container.go back to rpc calls
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add attach to loaded container
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add monitor based on epoll for process exits
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Convert pids in containerd to string
This is so that we no longer care about linux or system level pids and
processes in containerd have user defined process id(pid) kinda like the
exec process ids that docker has today.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add reaper back to containerd
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Implement list containers with new process model
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Implement restore of processes
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add NONBLOCK to exit fifo open
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Implement tty reattach
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fix race in exit pipe creation
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add delete to shim
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Update shim to use pid-file and not stdout
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
