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libct: rename root to stateDir in struct Container

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The name "root" (or "containerRoot") is confusing; one might think it is
the root of container's file system (the directory we chroot into).

Rename to stateDir for clarity.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin
2023-10-03 13:04:27 -07:00
committed by Aleksa Sarai
parent c89faacc13
commit efbebb39b5
5 changed files with 24 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libcontainer/container_linux.go
+10 -10
View File
@@ -36,7 +36,7 @@ const stdioFdCount = 3
// Container is a libcontainer container object.
type Container struct {
id string
root string
stateDir string
config *configs.Config
cgroupManager cgroups.Manager
intelRdtManager *intelrdt.Manager
@@ -242,7 +242,7 @@ func (c *Container) Exec() error {
}
func (c *Container) exec() error {
path := filepath.Join(c.root, execFifoFilename)
path := filepath.Join(c.stateDir, execFifoFilename)
pid := c.initProcess.pid()
blockingFifoOpenCh := awaitFifoOpen(path)
for {
@@ -409,7 +409,7 @@ func (c *Container) createExecFifo() error {
return err
}
fifoName := filepath.Join(c.root, execFifoFilename)
fifoName := filepath.Join(c.stateDir, execFifoFilename)
if _, err := os.Stat(fifoName); err == nil {
return fmt.Errorf("exec fifo %s already exists", fifoName)
}
@@ -424,7 +424,7 @@ func (c *Container) createExecFifo() error {
}
func (c *Container) deleteExecFifo() {
fifoName := filepath.Join(c.root, execFifoFilename)
fifoName := filepath.Join(c.stateDir, execFifoFilename)
os.Remove(fifoName)
}
@@ -433,7 +433,7 @@ func (c *Container) deleteExecFifo() {
// un-opened). It then adds the FifoFd to the given exec.Cmd as an inherited
// fd, with _LIBCONTAINER_FIFOFD set to its fd number.
func (c *Container) includeExecFifo(cmd *exec.Cmd) error {
fifoName := filepath.Join(c.root, execFifoFilename)
fifoName := filepath.Join(c.stateDir, execFifoFilename)
fifo, err := os.OpenFile(fifoName, unix.O_PATH|unix.O_CLOEXEC, 0)
if err != nil {
return err
@@ -512,7 +512,7 @@ func (c *Container) newParentProcess(p *Process) (parentProcess, error) {
} else {
var err error
if isDmzBinarySafe(c.config) {
dmzExe, err = dmz.Binary(c.root)
dmzExe, err = dmz.Binary(c.stateDir)
if err == nil {
// We can use our own executable without cloning if we are using
// runc-dmz.
@@ -531,7 +531,7 @@ func (c *Container) newParentProcess(p *Process) (parentProcess, error) {
err = dmz.ErrNoDmzBinary
}
if errors.Is(err, dmz.ErrNoDmzBinary) {
safeExe, err = dmz.CloneSelfExe(c.root)
safeExe, err = dmz.CloneSelfExe(c.stateDir)
if err != nil {
return nil, fmt.Errorf("unable to create safe /proc/self/exe clone for runc init: %w", err)
}
@@ -951,7 +951,7 @@ func (c *Container) updateState(process parentProcess) (*State, error) {
}
func (c *Container) saveState(s *State) (retErr error) {
tmpFile, err := os.CreateTemp(c.root, "state-")
tmpFile, err := os.CreateTemp(c.stateDir, "state-")
if err != nil {
return err
}
@@ -972,7 +972,7 @@ func (c *Container) saveState(s *State) (retErr error) {
return err
}
stateFilePath := filepath.Join(c.root, stateFilename)
stateFilePath := filepath.Join(c.stateDir, stateFilename)
return os.Rename(tmpFile.Name(), stateFilePath)
}
@@ -1019,7 +1019,7 @@ func (c *Container) runType() Status {
}
// We'll create exec fifo and blocking on it after container is created,
// and delete it after start container.
if _, err := os.Stat(filepath.Join(c.root, execFifoFilename)); err == nil {
if _, err := os.Stat(filepath.Join(c.stateDir, execFifoFilename)); err == nil {
return Created
}
return Running