The CRI doesn't expect us to implicitly pull an image if it isn't
already present before we're asked to use it to create a container, and
the tests no longer depend on us doing so, either.
Limit the logic which attempts to pull an image, if it isn't present, to
only pulling the configured "pause" image, since our use of that image
for running pod sandboxes is an implementation detail that our clients
can't be expected to know or care about. Include the name of the image
that we didn't pull in the error we return when we don't pull one.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Add a basic tool for copying images from one location to another,
optionally adding a name if it's to local storage. Ideally we could use
skopeo for this, but we don't want to build it.
Use it to initially populate the test/testdata/redis-image directory, if
it's not been cleaned out, with a copy of "docker://redis:latest", and
to copy it in to the storage that ocid is using before we start up ocid.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Add tests which exercise image pulling, listing, and removal. When running
tests, prepopulate the store with an image with the default infrastructure
container's name, using the locally-built "pause" binary, so that tests won't
have to pull it down from the network.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Use containers/storage to store images, pod sandboxes, and containers.
A pod sandbox's infrastructure container has the same ID as the pod to
which it belongs, and all containers also keep track of their pod's ID.
The container configuration that we build using the data in a
CreateContainerRequest is stored in the container's ContainerDirectory
and ContainerRunDirectory.
We catch SIGTERM and SIGINT, and when we receive either, we gracefully
exit the grpc loop. If we also think that there aren't any container
filesystems in use, we attempt to do a clean shutdown of the storage
driver.
The test harness now waits for ocid to exit before attempting to delete
the storage root directory.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Vendor updated containers/image and containers/storage, along
with any new dependencies they drag in, and updated versions of other
dependencies that happen to get pulled in.
github.com/coreos/go-systemd/daemon/SdNotify() now takes a boolean to
control whether or not it unsets the NOTIFY_SOCKET variable from the
calling process's environment. Adapt.
github.com/opencontainers/runtime-tools/generate/Generator.AddProcessEnv()
now takes the environment variable name and value as two arguments, not
one. Adapt.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
* Rename 'vendor/src' -> 'vendor'
* Ignore vendor/ instead of vendor/src/ for lint
* Rename 'cmd/client' -> 'cmd/ocic' to make it 'go install'able
* Rename 'cmd/server' -> 'cmd/ocid' to make it 'go install'able
* Update Makefile to build and install from GOPATH
* Update tests to locate ocid/ocic in GOPATH/bin
* Search for binaries in GOPATH/bin instead of PATH
* Install tools using `go get -u`, so they are updated on each run
Signed-off-by: Jonathan Yu <jawnsy@redhat.com>
The default configuration can only be accessed from the cmd/server
package, which cannot be imported (since it's a "package main").
This change promotes DefaultConfig() to the "server" package.
Closes: #315
Signed-off-by: Jonathan Yu <jawnsy@redhat.com>
"executable file not found in" is part of a runc
specific output when 'runc exec' fails.
This prevents the execsync failure to pass when running
ocid with other runtimes than runc.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Some OCI container runtimes (in particular the hypervisor
based ones) will typically create a shim process between
the hypervisor and the runtime caller, in order to not
rely on the hypervisor process for e.g. forwarding the
output streams or getting a command exit code.
When executing a command inside a running container those
runtimes will create that shim process and terminate.
Therefore calling and monitoring them directly from
ExecSync() will fail. Instead we need to have a subreaper
calling the runtime and monitoring the shim process.
This change uses conmon as the subreaper from ExecSync(),
monitors the shim process and read the exec'ed command
exit code from the synchronization pipe.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Some OCI container runtimes (in particular the hypervisor
based ones) will typically create a shim process between
the hypervisor and the runtime caller, in order to not
rely on the hypervisor process for e.g. forwarding the
output streams or getting a command exit code.
With these runtimes we need to monitor a different process
than the runtime one when executing a command inside a
running container. The natural place to do so is conmon
and thus we add a new option to conmon for calling the
runtime exec command, monitor the PID and then return the
running command exit code through the sync pipe to the
parent.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
waitpid fills its second argument with a value that
contains the process exit code in the 8 least significant
bits. Instead of returning the complete value and then
convert it from ocid, return the exit status directly
by using WEXITSTATUS from conmon.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
In later versions of runC, `runc kill` *requires* the signal parameter
to know what signal needs to be sent.
Signed-off-by: Aleksa Sarai <asarai@suse.com>
We create 2 pods in 2 different networking namespace and
we check if we can ping one from the other.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When removing a pod sandbox or container, remove the ID of the item from
the corresponding ID index, so that we can correctly determine if it was
us or another actor that cleaned them up.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
