fix(host-cleanup): fix service host cleanup image cannot be replaced

Signed-off-by: Aleksei Igrychev <aleksei.igrychev@palark.com>

Author: alexey-igrychev

pkg/container_backend/buildah_backend.go

@@ -847,9 +847,10 @@ func (backend *BuildahBackend) String() string {
 }
 
 func (backend *BuildahBackend) RemoveHostDirs(ctx context.Context, mountDir string, dirs []string) error {
+	serviceImage := getHostCleanupServiceImage()
 	var container *containerDesc
-	if c, err := backend.createContainers(ctx, []string{"alpine"}, CommonOpts{}); err != nil {
-		return fmt.Errorf("unable to create container based on alpine: %w", err)
+	if c, err := backend.createContainers(ctx, []string{serviceImage}, CommonOpts{}); err != nil {
+		return fmt.Errorf("unable to create container based on %q: %w", serviceImage, err)
 	} else {
 		container = c[0]
 	}

pkg/container_backend/docker_server_backend.go

@@ -320,7 +320,7 @@ func (backend *DockerServerBackend) RemoveHostDirs(ctx context.Context, mountDir
 	args := []string{
 		"--rm",
 		"--volume", fmt.Sprintf("%s:%s", mountDir, util.ToLinuxContainerPath(mountDir)),
-		"alpine",
+		getHostCleanupServiceImage(),
 		"rm", "-rf",
 	}
 

pkg/container_backend/utils.go

@@ -16,6 +16,7 @@ import (
 const (
 	SSHHostAuthSockPath      = "/run/host-services/ssh-auth.sock"
 	SSHContainerAuthSockPath = "/.werf/tmp/ssh-auth-sock"
+	hostCleanupServiceImage  = "alpine:3.14"
 )
 
 var (
@@ -78,3 +79,12 @@ func setSSHMountPoint(sshAuthSock string) (string, map[string]string) {
 	}
 	return vol, env
 }
+
+func getHostCleanupServiceImage() string {
+	image := hostCleanupServiceImage
+	if v := os.Getenv("WERF_HOST_CLEANUP_SERVICE_IMAGE"); v != "" {
+		image = v
+	}
+
+	return image
+}