diff options
| author | Ophestra <cat@gensokyo.uk> | 2025-08-01 23:54:33 +0900 |
|---|---|---|
| committer | Ophestra <cat@gensokyo.uk> | 2025-08-01 23:56:28 +0900 |
| commit | 3b8a3d3b004695d79745c34821b33cfbe41048a9 (patch) | |
| tree | bdc3ba42fa32e2d4c2c48305e8f381f40bc4c891 /internal/app/seal_linux.go | |
| parent | c5d24979f5d6095116d66beb544aa382816183f9 (diff) | |
app: remount root readonly
This does nothing for security, but should help avoid hiding bugs of programs developed in a hakurei container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
Diffstat (limited to 'internal/app/seal_linux.go')
| -rw-r--r-- | internal/app/seal_linux.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/internal/app/seal_linux.go b/internal/app/seal_linux.go index cc92db29..b25b5c4f 100644 --- a/internal/app/seal_linux.go +++ b/internal/app/seal_linux.go @@ -478,6 +478,9 @@ func (seal *outcome) finalise(ctx context.Context, sys sys.State, config *hst.Co seal.container.Tmpfs(dest, 1<<13, 0755) } + // mount root read-only as the final setup Op + seal.container.Remount("/", syscall.MS_RDONLY) + // append ExtraPerms last for _, p := range config.ExtraPerms { if p == nil { |