Fix cgroup path computation

In testing scenarios, the process path is not necessarily `/proc/<pid>/cgroup`, but `fixtures/<pid>/cgroup` or similar. Signed-off-by: Nathan Monfils <[email protected]>
prometheus · Jul 21, 2021 · 8506463 · 8506463
1 parent 139df5d
commit 8506463
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/proc_cgroup.go b/proc_cgroup.go
@@ -90,7 +90,7 @@ func parseCgroups(data []byte) ([]Cgroup, error) {
 // control hierarchy running on this system. On every system (v1 and v2), all hierarchies contain all processes,
 // so the len of the returned struct is equal to the number of active hierarchies on this system
 func (p Proc) Cgroups() ([]Cgroup, error) {
-	data, err := util.ReadFileNoStat(fmt.Sprintf("/proc/%d/cgroup", p.PID))
+	data, err := util.ReadFileNoStat(p.path("cgroup"))
 	if err != nil {
 		return nil, err
 	}