feat: relative parent paths on bind mount src

Signed-off-by: Alano Terblanche <18033717+Benehiko@users.noreply.github.com>

Author: Benehiko

cli/command/container/opts.go

@@ -382,7 +382,7 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
 
 			if parsed.Type == string(mounttypes.TypeBind) {
 				if hostPart, targetPath, ok := strings.Cut(bind, ":"); ok {
-					if strings.HasPrefix(hostPart, "."+string(filepath.Separator)) || hostPart == "." {
+					if !filepath.IsAbs(hostPart) && strings.HasPrefix(hostPart, ".") {
 						if absHostPart, err := filepath.Abs(hostPart); err == nil {
 							hostPart = absHostPart
 						}

opts/mount.go

@@ -93,7 +93,7 @@ func (m *MountOpt) Set(value string) error {
 			mount.Type = mounttypes.Type(strings.ToLower(val))
 		case "source", "src":
 			mount.Source = val
-			if strings.HasPrefix(val, "."+string(filepath.Separator)) || val == "." {
+			if !filepath.IsAbs(val) && strings.HasPrefix(val, ".") {
 				if abs, err := filepath.Abs(val); err == nil {
 					mount.Source = abs
 				}

opts/mount_test.go

@@ -39,11 +39,22 @@ func TestMountRelative(t *testing.T) {
 			name: "Current path",
 			path: ".",
 			bind: "type=bind,source=.,target=/target",
-		}, {
+		},
+		{
 			name: "Current path with slash",
 			path: "./",
 			bind: "type=bind,source=./,target=/target",
 		},
+		{
+			name: "Parent path with slash",
+			path: "../",
+			bind: "type=bind,source=../,target=/target",
+		},
+		{
+			name: "Parent path",
+			path: "..",
+			bind: "type=bind,source=..,target=/target",
+		},
 	} {
 		t.Run(testcase.name, func(t *testing.T) {
 			var mount MountOpt