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container/initoverlay: configure via fsconfig
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This works around the page size limit at the cost of negligible performance regressions.

Closes #34.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra
2026-05-04 02:07:52 +09:00
parent 024489e800
commit da11b26ec1
11 changed files with 124 additions and 91 deletions
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24
container/container_test.go
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@@ -16,6 +16,7 @@ import (
"strings"
"syscall"
"testing"
_ "unsafe" // for go:linkname
"hakurei.app/check"
"hakurei.app/command"
@@ -233,6 +234,9 @@ func earlyMnt(mnt ...*vfs.MountInfoEntry) func(*testing.T, context.Context) []*v
return func(*testing.T, context.Context) []*vfs.MountInfoEntry { return mnt }
}
//go:linkname toHost hakurei.app/container.toHost
func toHost(name string) string
var containerTestCases = []struct {
name string
filter bool
@@ -332,13 +336,15 @@ var containerTestCases = []struct {
func(t *testing.T, ctx context.Context) []*vfs.MountInfoEntry {
return []*vfs.MountInfoEntry{
ent("/", hst.PrivateTmp, "rw", "overlay", "overlay",
"rw,lowerdir="+
container.InternalToHostOvlEscape(ctx.Value(testVal("lower0")).(*check.Absolute).String())+":"+
container.InternalToHostOvlEscape(ctx.Value(testVal("lower1")).(*check.Absolute).String())+
"rw"+
",lowerdir+="+
toHost(ctx.Value(testVal("lower0")).(*check.Absolute).String())+
",lowerdir+="+
toHost(ctx.Value(testVal("lower1")).(*check.Absolute).String())+
",upperdir="+
container.InternalToHostOvlEscape(ctx.Value(testVal("upper")).(*check.Absolute).String())+
toHost(ctx.Value(testVal("upper")).(*check.Absolute).String())+
",workdir="+
container.InternalToHostOvlEscape(ctx.Value(testVal("work")).(*check.Absolute).String())+
toHost(ctx.Value(testVal("work")).(*check.Absolute).String())+
",redirect_dir=nofollow,uuid=on,userxattr"),
}
},
@@ -388,9 +394,11 @@ var containerTestCases = []struct {
func(t *testing.T, ctx context.Context) []*vfs.MountInfoEntry {
return []*vfs.MountInfoEntry{
ent("/", hst.PrivateTmp, "rw", "overlay", "overlay",
"ro,lowerdir="+
container.InternalToHostOvlEscape(ctx.Value(testVal("lower0")).(*check.Absolute).String())+":"+
container.InternalToHostOvlEscape(ctx.Value(testVal("lower1")).(*check.Absolute).String())+
"ro"+
",lowerdir+="+
toHost(ctx.Value(testVal("lower0")).(*check.Absolute).String())+
",lowerdir+="+
toHost(ctx.Value(testVal("lower1")).(*check.Absolute).String())+
",redirect_dir=nofollow,userxattr"),
}
},