Files
orca/internal/store/store.go
T
Jon Chery 0358efe95b fix(P07): concurrency safety — SQLite, flock, cache, atomic writes (REQ-156)
- SQLite busy_timeout(5000) + SetMaxOpenConns(1) on all 4 DSNs
- secrets file flock (concurrent set on same ns no longer loses data)
- upgrade lock file (refuse concurrent orca upgrade)
- backup lock file (refuse concurrent backup)
- cache invalidation by writes (read-after-write consistency)
- Executor.Run mutex scope fix (hold only for DB inserts)
- ns create/inherit/set-constraint atomic writeNSMdAtomic
- writeCurrentLead + rotateSSHKeys atomic
- consolidate 3 writeAtomic impls onto security.WriteAtomic
- WebAuthn session stores guarded with sync.Mutex

Tests: concurrent secrets set, upgrade lock rejection, cache
read-after-write, WebAuthn session thread-safety (pass under -race).

---ci---
project: orca
phase: 7
milestone: v0.13
status: complete
requirements:
  covered: [156]
---/ci---
2026-08-10 12:27:05 +00:00

49 lines
1.4 KiB
Go

package store
import (
"database/sql"
"fmt"
"os"
"path/filepath"
_ "modernc.org/sqlite"
"git.cloudinit.dev/coreci/orca/internal/certpaths"
)
func Open(path string) (*sql.DB, error) {
if path == "" {
path = certpaths.DBPath()
}
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
return nil, fmt.Errorf("create db dir: %w", err)
}
db, err := sql.Open("sqlite", path+"?_pragma=journal_mode(WAL)&_pragma=foreign_keys(ON)&_pragma=busy_timeout(5000)")
if err != nil {
return nil, fmt.Errorf("open sqlite: %w", err)
}
// REQ-156 / P07 T1: SQLite is a single-writer database. Cap the
// connection pool at 1 so concurrent goroutines serialize on the
// busy_timeout(5000) above instead of racing for the WAL writer
// lock and surfacing spurious SQLITE_BUSY errors to callers.
db.SetMaxOpenConns(1)
if err := db.Ping(); err != nil {
_ = db.Close()
return nil, fmt.Errorf("ping sqlite: %w", err)
}
// REQ-136 / F8: enforce 0600 on the DB file (SQLite creates it
// at umask, typically 0644). We chmod after open+ping (the file
// exists at this point). Non-fatal if chmod fails (e.g. the DB
// is at a path we don't own); the caller is warned via vet.
if err := os.Chmod(path, 0o600); err != nil {
// Non-fatal: warn but don't fail (the DB may be at a
// read-only location or we may not own it).
_ = err
}
if err := migrate(db); err != nil {
_ = db.Close()
return nil, fmt.Errorf("migrate: %w", err)
}
return db, nil
}