Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

fix(WCOW): fix file access failure for multistage builds #5289

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
+31 −2
Open

fix(WCOW): fix file access failure for multistage builds #5289

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 5 additions & 2 deletions cache/contenthash/checksum.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1034,7 +1034,7 @@ func (cc *cacheContext) scanPath(ctx context.Context, m *mount, p string, follow
scanPath = resolvedPath
}

err = filepath.Walk(scanPath, func(itemPath string, fi os.FileInfo, err error) error {
walkFunc := func(itemPath string, fi os.FileInfo, err error) error {
if scanCounterEnable {
scanCounter.Add(1)
}
Expand Down Expand Up @@ -1073,7 +1073,10 @@ func (cc *cacheContext) scanPath(ctx context.Context, m *mount, p string, follow
txn.Insert(k, cr)
}
return nil
})
}

err = cc.walk(scanPath, walkFunc)

if err != nil {
return err
}
Expand Down
10 changes: 10 additions & 0 deletions cache/contenthash/checksum_unix.go
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
//go:build !windows
// +build !windows

package contenthash

import "path/filepath"

func (cc *cacheContext) walk(scanPath string, walkFunc filepath.WalkFunc) error {
return filepath.Walk(scanPath, walkFunc)
}
16 changes: 16 additions & 0 deletions cache/contenthash/checksum_windows.go
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
package contenthash

import (
"path/filepath"

"github.com/Microsoft/go-winio"
)

func (cc *cacheContext) walk(scanPath string, walkFunc filepath.WalkFunc) error {
// elevating the admin privileges to walk special files/directory
// like `System Volume Information`, etc. See similar in #4994
privileges := []string{winio.SeBackupPrivilege}
billywr marked this conversation as resolved.
Show resolved Hide resolved
return winio.RunWithPrivileges(privileges, func() error {
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I believe there was a list of paths which should be excluded if I remember correctly. A number of metadata files, some of which (if not all) are listed here:

https://github.com/containerd/continuity/blob/50fa7de4fc5d1529fed1c4d6e3efad231bf5a232/fs/fstest/compare_windows.go#L19

Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I opened an issue for that some time back #5011, I noticed that that list keeps growing and maintaining a whitelist is going to be a chase game. However, we can rethink it.

Copy link
Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@gabriel-samfira Can we proceed with this as is and handle the whitelisting part in the other open issue? This is currently blocking some integration tests for WCOW.

return filepath.Walk(scanPath, walkFunc)
})
}
Loading