When a container is in a PID namespace, it is enought to send
the stop signal to the PID 1 of the namespace, only send signals
to all processes in the container when the container is not in
a pid namespace.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
For future work, we need multiple implementations of the OCI
runtime, not just a Conmon-wrapped runtime matching the runc CLI.
As part of this, do some refactoring on the interface for exec
(move to a struct, not a massive list of arguments). Also, add
'all' support to Kill and Stop (supported by runc and used a bit
internally for removing containers).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
If you are running a rootless container on cgroupV1
you can not pause the container. We need to report the proper error
if this happens.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Support generating systemd unit files for a pod. Podman generates one
unit file for the pod including the PID file for the infra container's
conmon process and one unit file for each container (excluding the infra
container).
Note that this change implies refactorings in the `pkg/systemdgen` API.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
the compilation demands of having libpod in main is a burden for the
remote client compilations. to combat this, we should move the use of
libpod structs, vars, constants, and functions into the adapter code
where it will only be compiled by the local client.
this should result in cleaner code organization and smaller binaries. it
should also help if we ever need to compile the remote client on
non-Linux operating systems natively (not cross-compiled).
Signed-off-by: baude <bbaude@redhat.com>
Allow Podman containers to request to use a specific OCI runtime
if multiple runtimes are configured. This is the first step to
properly supporting containers in a multi-runtime environment.
The biggest changes are that all OCI runtimes are now initialized
when Podman creates its runtime, and containers now use the
runtime requested in their configuration (instead of always the
default runtime).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
We have a very high performance JSON library that doesn't need to
perform code generation. Let's use it instead of our questionably
performant, reflection-dependent deep copy library.
Most changes because some functions can now return errors.
Also converts cmd/podman to use jsoniter, instead of pkg/json,
for increased performance.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
In lipod, we now log major events that occurr. These events
can be displayed using the `podman events` command. Each
event contains:
* Type (container, image, volume, pod...)
* Status (create, rm, stop, kill, ....)
* Timestamp in RFC3339Nano format
* Name (if applicable)
* Image (if applicable)
The format of the event and the varlink endpoint are to not
be considered stable until cockpit has done its enablement.
Signed-off-by: baude <bbaude@redhat.com>
like podman stop of containers, we should allow the user to specify
a timeout override when stopping pods; otherwise they have to wait
the full timeout time specified during the pod/container creation.
Signed-off-by: baude <bbaude@redhat.com>
To work better with Kata containers, we need to delete() from the
OCI runtime as a part of cleanup, to ensure resources aren't
retained longer than they need to be.
To enable this, we need to add a new state to containers,
ContainerStateExited. Containers transition from
ContainerStateStopped to ContainerStateExited via cleanupRuntime
which is invoked as part of cleanup(). A container in the Exited
state is identical to Stopped, except it has been removed from
the OCI runtime and thus will be handled differently when
initializing the container.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
As well as small style corrections, update pod_top_test to use CreatePod, and move handling of adding a container to the pod's namespace from container_internal_linux to libpod/option.
Signed-off-by: haircommander <pehunt@redhat.com>
Closes: #1187
Approved by: mheon
A pause container is added to the pod if the user opts in. The default pause image and command can be overridden. Pause containers are ignored in ps unless the -a option is present. Pod inspect and pod ps show shared namespaces and pause container. A pause container can't be removed with podman rm, and a pod can be removed if it only has a pause container.
Signed-off-by: haircommander <pehunt@redhat.com>
Closes: #1187
Approved by: mheon
To better reflect it's usage: to share functions between podman and varlink.
Signed-off-by: haircommander <pehunt@redhat.com>
Closes: #1275
Approved by: mheon
Specifically, pod.Start() always returned CtrErrors, even if none failed. This cause podman start to not return the successfully started pod id.
Also, pod.Kill() didn't return an error along with ctrErrors.
Signed-off-by: haircommander <pehunt@redhat.com>
Closes: #1272
Approved by: rhatdan
Also, don't return the internal podState struct - instead return
a public inspect struct.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #1258
Approved by: rhatdan
This removes anything but structs and simple accessors from
pod.go itself, which is a target file for FFJSON generation. This
should reduce the amount of times FFJSON needs to run.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #1247
Approved by: rhatdan
