pkg/lvm: add flock-based lock around any lvm invocations

See - https://jira.mesosphere.com/browse/DCOS_OSS-5434 - lvmteam/lvm2#23
d2iq-archive · Aug 9, 2019 · 1706389 · 1706389
1 parent f91368e
commit 1706389
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/pkg/lvm/lock.go b/pkg/lvm/lock.go
@@ -0,0 +1,17 @@
+package lvm
+
+import (
+	"github.com/gofrs/flock"
+)
+
+var lvmlock *flock.Flock
+
+// SetLockFilePath sets the path to the LOCK file to use for preventing
+// concurrent invocations of LVM command-line utilities.
+//
+// See
+// - https://jira.mesosphere.com/browse/DCOS_OSS-5434
+// - https://github.com/lvmteam/lvm2/issues/23
+func SetLockFilePath(filepath string) {
+	lvmlock = flock.New(filepath)
+}