35:A function to get the absolute path to the CGroupsV2

Signed-off-by: Neeraj Krishna Gopalakrishna <[email protected]>

Author: ngopalak-redhat

pkg/api/container.go

@@ -17,9 +17,6 @@
 package api
 
 import (
-	"os"
-	"path/filepath"
-	"strings"
 	"time"
 )
 
@@ -46,92 +43,3 @@ func (x *Container) GetFinishedAtTime() time.Time {
 	}
 	return t
 }
-
-// GetCgroupsV2AbsPath returns the absolute path to the cgroup v2 directory for this container.
-// This method converts relative cgroup paths to absolute paths, for different cgroup managers,
-// QoS classes, and custom cgroup hierarchies.
-// It returns an empty string if the container has no Linux configuration or cgroups path.
-func (x *Container) GetCgroupsV2AbsPath() string {
-	if x == nil || x.Linux == nil || x.Linux.CgroupsPath == "" {
-		return ""
-	}
-
-	cgroupPath := x.Linux.CgroupsPath
-	return getCGroupsV2Path(cgroupPath)
-}
-
-// GetCgroupsV2AbsPath returns the absolute path to the cgroup v2 directory for this pod sandbox.
-// This method converts relative cgroup paths to absolute paths, for different cgroup managers,
-// QoS classes, and custom cgroup hierarchies.
-// It returns an empty string if the container has no Linux configuration or cgroups path.
-func (x *PodSandbox) GetCgroupsV2AbsPath() string {
-	if x == nil || x.Linux == nil || x.Linux.CgroupsPath == "" {
-		return ""
-	}
-
-	cgroupPath := x.Linux.CgroupsPath
-	return getCGroupsV2Path(cgroupPath)
-}
-
-// Helper functions
-
-// getCGroupsV2Path helper
-// Same implementation for both sandbox and container
-func getCGroupsV2Path(cgroupPath string) string {
-	if filepath.IsAbs(cgroupPath) {
-		return cgroupPath
-	}
-
-	cgroupV2Root := getCgroupV2Root()
-	if cgroupV2Root == "" {
-		// Fallback to default cgroup v2 mount point
-		cgroupV2Root = "/sys/fs/cgroup"
-	}
-
-	return filepath.Join(cgroupV2Root, cgroupPath)
-}
-
-// getCgroupV2Root finds the cgroup v2 mount point by reading /proc/mounts
-// It returns an empty string if no cgroup v2 mount point is found
-func getCgroupV2Root() string {
-	commonPaths := []string{
-		"/sys/fs/cgroup",
-		"/cgroup2",
-	}
-
-	if mountPoint := findCgroupV2Mount(); mountPoint != "" {
-		return mountPoint
-	}
-
-	for _, path := range commonPaths {
-		if isCgroupV2Mount(path) {
-			return path
-		}
-	}
-
-	return "/sys/fs/cgroup"
-}
-
-// findCgroupV2Mount reads /proc/mounts to find the cgroup2 filesystem mount point
-func findCgroupV2Mount() string {
-	data, err := os.ReadFile("/proc/mounts")
-	if err != nil {
-		return ""
-	}
-
-	lines := strings.Split(string(data), "\n")
-	for _, line := range lines {
-		fields := strings.Fields(line)
-		if len(fields) >= 3 && fields[2] == "cgroup2" {
-			return fields[1]
-		}
-	}
-	return ""
-}
-
-func isCgroupV2Mount(path string) bool {
-	if _, err := os.Stat(filepath.Join(path, "cgroup.controllers")); err == nil {
-		return true
-	}
-	return false
-}