From f936b745b66de3cbbdf924a26bb35766afe5acba Mon Sep 17 00:00:00 2001
From: Giuseppe Scrivano <gscrivan@redhat.com>
Date: Mon, 26 Mar 2018 20:09:10 +0200
Subject: podman: new option --conmon-pidfile=

so that it is possible to use systemd to automatically restart the
container:

[Service]
Type=forking
PIDFile=/run/awesome-service.pid
ExecStart=/usr/bin/podman run --conmon-pidfile=/run/awesome-service.pid --name awesome -d IMAGE /usr/bin/do-something
ExecStopPost=/usr/bin/podman rm awesome
Restart=always

Closes: https://github.com/projectatomic/libpod/issues/534

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

Closes: #549
Approved by: rhatdan
---
 libpod/container.go |  2 ++
 libpod/oci.go       |  3 +++
 libpod/options.go   | 11 +++++++++++
 3 files changed, 16 insertions(+)

(limited to 'libpod')

diff --git a/libpod/container.go b/libpod/container.go
index c2b07eb3f..965ac67fe 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -251,6 +251,8 @@ type ContainerConfig struct {
 	CgroupParent string `json:"cgroupParent"`
 	// LogPath log location
 	LogPath string `json:"logPath"`
+	// File containing the conmon PID
+	ConmonPidFile string `json:"conmonPidFile,omitempty"`
 	// TODO log options for log drivers
 }
 
diff --git a/libpod/oci.go b/libpod/oci.go
index 2ea3317d6..049d0817b 100644
--- a/libpod/oci.go
+++ b/libpod/oci.go
@@ -212,6 +212,9 @@ func (r *OCIRuntime) createContainer(ctr *Container, cgroupParent string) (err e
 	args = append(args, "-p", filepath.Join(ctr.state.RunDir, "pidfile"))
 	args = append(args, "-l", ctr.LogPath())
 	args = append(args, "--exit-dir", r.exitsDir)
+	if ctr.config.ConmonPidFile != "" {
+		args = append(args, "--conmon-pidfile", ctr.config.ConmonPidFile)
+	}
 	args = append(args, "--socket-dir-path", r.socketsDir)
 	if ctr.config.Spec.Process.Terminal {
 		args = append(args, "-t")
diff --git a/libpod/options.go b/libpod/options.go
index 7cbe9afb4..987a37429 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -766,3 +766,14 @@ func WithHosts(hosts []string) CtrCreateOption {
 		return nil
 	}
 }
+
+// WithConmonPidFile specifies the path to the file that receives the pid of conmon
+func WithConmonPidFile(path string) CtrCreateOption {
+	return func(ctr *Container) error {
+		if ctr.valid {
+			return ErrCtrFinalized
+		}
+		ctr.config.ConmonPidFile = path
+		return nil
+	}
+}
-- 
cgit v1.2.3-54-g00ecf