From 9c1e27fdd536f6026efe3da4360755a3e9135ca8 Mon Sep 17 00:00:00 2001 From: Giuseppe Scrivano Date: Thu, 16 Sep 2021 12:14:02 +0200 Subject: system: always move pause process when running on systemd when running on a systemd with systemd, always try to move the pause process to its own scope. Signed-off-by: Giuseppe Scrivano --- utils/utils.go | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'utils') diff --git a/utils/utils.go b/utils/utils.go index 2e415130e..e2760d225 100644 --- a/utils/utils.go +++ b/utils/utils.go @@ -4,10 +4,12 @@ import ( "bytes" "fmt" "io" + "io/ioutil" "os" "os/exec" "strconv" "strings" + "sync" "github.com/containers/podman/v3/libpod/define" "github.com/containers/storage/pkg/archive" @@ -155,3 +157,18 @@ func RemoveScientificNotationFromFloat(x float64) (float64, error) { } return result, nil } + +var ( + runsOnSystemdOnce sync.Once + runsOnSystemd bool +) + +// RunsOnSystemd returns whether the system is using systemd +func RunsOnSystemd() bool { + runsOnSystemdOnce.Do(func() { + initCommand, err := ioutil.ReadFile("/proc/1/comm") + // On errors, default to systemd + runsOnSystemd = err != nil || strings.TrimRight(string(initCommand), "\n") == "systemd" + }) + return runsOnSystemd +} -- cgit v1.2.3-54-g00ecf