Since we now have a common set of error definitions, mapped to existing
error codes, we no longer need the specialized error codes used for
interaction with linux processes. The main issue was that string
matching was being used to map these to useful error codes. With this
change, we use errors defined in the `errdefs` package, which map
cleanly to GRPC error codes and are recoverable on either side of the
request.
The main focus of this PR was in removin these from the shim. We may
need follow ups to ensure error codes are preserved by the `Tasks`
service.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
These rpcs only return pids []uint32 so should be named that way in
order to have other rpcs that list Processes such as Exec'd processes.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
* Sync process.State() with the matching events
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Allow requesting events for a specific container
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Sync container state retrieval with other events
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Let containerd take care of calling runtime delete on exit
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Take care of possible race in TestBusyboxTopExecTopKillInit
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
This fixes a sync issue when the containerd api returns after a
container has started. It fixes it by calling the runtime start inside
containerd after the oom handler has been setup.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
* Micro benchmarks: use container.Runtime to kill container
Signed-off-by: Julio Montes <julio.montes@intel.com>
* Micro benchmarks: add support for multiples runtimes
Signed-off-by: Julio Montes <julio.montes@intel.com>
* Vendor in runc afaa21f79ade3b2e99a68f3f15e7219155aa4662
This updates the Dockerfile to use go 1.6.2 and install pkg-config are
both are now needed by runc.
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Add support for runc create/start operation
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Remove dependency on runc state directory for OOM handler
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
* Add OOM test
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
This is the first in a series of micro benchmarks for containerd.
Performance measurement will use containerd objects and methods
that are not dependent on the grpc API and dont require the daemon
to the running. Test will require containerd-shim and runc.
The motivation is to understand the baseline performance at the lowest
containerd layer. A natural extension to this effort would be to write
macro benchmarks which would include API and daemon.
Note:
- Currently measures only one workload (busybox sh) start times. Will
add other bundles and args soon.
- Can use integration-test utils for bundle processing. However, json
marshal/unmarshal is currently timing out standard benchmark times. So
going with default spec for now.
Sample run:
BenchmarkBusyboxSh-4 / # / # / # 2 576013841 ns/op
ok github.com/docker/containerd/runtime 1.800s
Signed-off-by: Anusha Ragunathan <anusha@docker.com>
* containerd build clean on Solaris
Signed-off-by: Amit Krishnan <krish.amit@gmail.com>
* Vendor golang.org/x/sys
Signed-off-by: Amit Krishnan <krish.amit@gmail.com>
See https://github.com/docker/docker/issues/22643 for an example
where we get an error running a cmd but there's no output so `b`
is an empty string, which means the user doesn't see any interesting
error message to help them.
This PR will send back the `err` and `b` so that between those two
bits of info they should get something more than a blank string.
Signed-off-by: Doug Davis <dug@us.ibm.com>
Because we are launching alot of different runc commands to do
operations there is a race between doing a `cmd.Wait()` and getting the
sigchld and reaping it. We can remove the sigchild reaper from
containerd as long as we make sure we reap the shim process if we are
the parent, i.e. not restored.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
runc `events --stats` now has stable output so we don't need to bind to
libcontainer directly to get stats output for the containers.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
runc now has a `ps` command with json output to support listing all the
processes inside a container. We no longer need to use libcontainer
directly for doing this.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
