pod create: add `--infra-conmon-pidfile`

Add an `--infra-conmon-pidfile` flag to `podman-pod-create` to write the
infra container's conmon process ID to a specified path.  Several
container sub-commands already support `--conmon-pidfile` which is
especially helpful to allow for systemd to access and track the conmon
processes.  This allows for easily tracking the conmon process of a
pod's infra container.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/libpod/runtime_pod_infra_linux.go b/libpod/runtime_pod_infra_linux.go
index 06a7b3936..a0dee3aa1 100644
--- a/libpod/runtime_pod_infra_linux.go
+++ b/libpod/runtime_pod_infra_linux.go
@@ -130,6 +130,9 @@ func (r *Runtime) makeInfraContainer(ctx context.Context, p *Pod, imgName, rawIm
 	options = append(options, WithRootFSFromImage(imgID, imgName, rawImageName))
 	options = append(options, WithName(containerName))
 	options = append(options, withIsInfra())
+	if len(p.config.InfraContainer.ConmonPidFile) > 0 {
+		options = append(options, WithConmonPidFile(p.config.InfraContainer.ConmonPidFile))
+	}
 
 	return r.newContainer(ctx, g.Config, options...)
 }