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systemd: Export IsSystemdRunning() function 

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
This commit is contained in:
Mrunal Patel 2020-03-27 14:59:46 -07:00
parent 4a9e1747da
commit 33c6125da6
4 changed files with 8 additions and 8 deletions
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2
libcontainer/cgroups/systemd/apply_nosystemd.go
View File

@ -14,7 +14,7 @@ type Manager struct {
Paths map[string]string
}
func UseSystemd() bool {
func IsRunningSystemd() bool {
return false
}

4
libcontainer/cgroups/systemd/apply_systemd.go
View File

@ -89,7 +89,7 @@ func newProp(name string, units interface{}) systemdDbus.Property {
// system. This functions similarly to systemd's `sd_booted(3)`: internally, it
// checks whether /run/systemd/system/ exists and is a directory.
// http://www.freedesktop.org/software/systemd/man/sd_booted.html
func isRunningSystemd() bool {
func IsRunningSystemd() bool {
fi, err := os.Lstat("/run/systemd/system")
if err != nil {
return false
@ -116,7 +116,7 @@ func UseSystemd() bool {
}
func NewSystemdCgroupsManager() (func(config *configs.Cgroup, paths map[string]string) cgroups.Manager, error) {
if !isRunningSystemd() {
if !IsRunningSystemd() {
return nil, fmt.Errorf("systemd not running on this host, can't use systemd as a cgroups.Manager")
}
if cgroups.IsCgroup2UnifiedMode() {

8
libcontainer/integration/exec_test.go
View File

@ -506,7 +506,7 @@ func TestFreeze(t *testing.T) {
}
func TestSystemdFreeze(t *testing.T) {
if !systemd.UseSystemd() {
if !systemd.IsRunningSystemd() {
t.Skip("Systemd is unsupported")
}
testFreeze(t, true)
@ -563,7 +563,7 @@ func TestCpuShares(t *testing.T) {
}
func TestCpuSharesSystemd(t *testing.T) {
if !systemd.UseSystemd() {
if !systemd.IsRunningSystemd() {
t.Skip("Systemd is unsupported")
}
testCpuShares(t, true)
@ -598,7 +598,7 @@ func TestPids(t *testing.T) {
}
func TestPidsSystemd(t *testing.T) {
if !systemd.UseSystemd() {
if !systemd.IsRunningSystemd() {
t.Skip("Systemd is unsupported")
}
testPids(t, true)
@ -684,7 +684,7 @@ func TestRunWithKernelMemory(t *testing.T) {
}
func TestRunWithKernelMemorySystemd(t *testing.T) {
if !systemd.UseSystemd() {
if !systemd.IsRunningSystemd() {
t.Skip("Systemd is unsupported")
}
testRunWithKernelMemory(t, true)

2
utils_linux.go
View File

@ -47,7 +47,7 @@ func loadFactory(context *cli.Context) (libcontainer.Factory, error) {
cgroupManager = libcontainer.RootlessCgroupfs
}
if context.GlobalBool("systemd-cgroup") {
if systemd.UseSystemd() {
if systemd.IsRunningSystemd() {
cgroupManager = libcontainer.SystemdCgroups
} else {
return nil, fmt.Errorf("systemd cgroup flag passed, but systemd support for managing cgroups is not available")