internal/pkg: automatic overlay mount on work

This directly submits the upperdir to cache. It is primarily used in bootstrapping where tools are limited and should not be used unless there is a very good reason to.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
2026-01-07 03:14:33 +09:00
parent 54da6ce03d
commit 8e08e8f518
4 changed files with 140 additions and 25 deletions

View File

@@ -411,6 +411,36 @@ func TestFlatten(t *testing.T) {
{Mode: fs.ModeDir | 0700, Path: "work"},
}, pkg.MustDecode("_r1IBeMWCkLwQ9Im9w0tV9_CWIOfQlXkkP2CogPHLmZp_AB6W3_8HVZqDV00dNAm")},
{"sample exec container overlay work", fstest.MapFS{
".": {Mode: fs.ModeDir | 0700},
"checksum": {Mode: fs.ModeDir | 0700},
"checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9": {Mode: fs.ModeDir | 0500},
"checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9/check": {Mode: 0400, Data: []byte{0}},
"checksum/MGWmEfjut2QE2xPJwTsmUzpff4BN_FEnQ7T0j7gvUCCiugJQNwqt9m151fm9D1yU": {Mode: fs.ModeDir | 0500},
"identifier": {Mode: fs.ModeDir | 0700},
"identifier/VMCurZKCA_MV80zb-ZBWVytfl3rhYOKJeo2u9l-OuaytQ_w_r4EsqgJ2nfO93x5_": {Mode: fs.ModeSymlink | 0777, Data: []byte("../checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9")},
"identifier/nfeISfLeFDr1k-g3hpE1oZ440kTqDdfF8TDpoLdbTPqaMMIl95oiqcvqjRkMjubA": {Mode: fs.ModeSymlink | 0777, Data: []byte("../checksum/MGWmEfjut2QE2xPJwTsmUzpff4BN_FEnQ7T0j7gvUCCiugJQNwqt9m151fm9D1yU")},
"temp": {Mode: fs.ModeDir | 0700},
"work": {Mode: fs.ModeDir | 0700},
}, []pkg.FlatEntry{
{Mode: fs.ModeDir | 0700, Path: "."},
{Mode: fs.ModeDir | 0700, Path: "checksum"},
{Mode: fs.ModeDir | 0500, Path: "checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9"},
{Mode: 0400, Path: "checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9/check", Data: []byte{0}},
{Mode: fs.ModeDir | 0500, Path: "checksum/MGWmEfjut2QE2xPJwTsmUzpff4BN_FEnQ7T0j7gvUCCiugJQNwqt9m151fm9D1yU"},
{Mode: fs.ModeDir | 0700, Path: "identifier"},
{Mode: fs.ModeSymlink | 0777, Path: "identifier/VMCurZKCA_MV80zb-ZBWVytfl3rhYOKJeo2u9l-OuaytQ_w_r4EsqgJ2nfO93x5_", Data: []byte("../checksum/GPa4aBakdSJd7Tz7LYj_VJFoojzyZinmVcG3k6M5xI6CZ821J5sXLhLDDuS47gi9")},
{Mode: fs.ModeSymlink | 0777, Path: "identifier/nfeISfLeFDr1k-g3hpE1oZ440kTqDdfF8TDpoLdbTPqaMMIl95oiqcvqjRkMjubA", Data: []byte("../checksum/MGWmEfjut2QE2xPJwTsmUzpff4BN_FEnQ7T0j7gvUCCiugJQNwqt9m151fm9D1yU")},
{Mode: fs.ModeDir | 0700, Path: "temp"},
{Mode: fs.ModeDir | 0700, Path: "work"},
}, pkg.MustDecode("-DrfvuB9gUAT-Tgw6V1KjFyosYGMGKJW7KMZFF1Ew8jZ9LJ82FtXf0wTgM3fO0oD")},
{"sample file short", fstest.MapFS{
".": {Mode: fs.ModeDir | 0700},