LogsPDH *string
RunArvMount
MkTempDir
- ArvMount *exec.Cmd
- ArvMountPoint string
- HostOutputDir string
- CleanupTempDir []string
- Binds []string
- Volumes map[string]struct{}
- OutputPDH *string
- SigChan chan os.Signal
- ArvMountExit chan error
- finalState string
-
- statLogger io.WriteCloser
- statReporter *crunchstat.Reporter
- statInterval time.Duration
- cgroupRoot string
+ ArvMount *exec.Cmd
+ ArvMountPoint string
+ HostOutputDir string
+ Binds []string
+ Volumes map[string]struct{}
+ OutputPDH *string
+ SigChan chan os.Signal
+ ArvMountExit chan error
+ finalState string
+ parentTemp string
+
+ statLogger io.WriteCloser
+ statReporter *crunchstat.Reporter
+ hoststatLogger io.WriteCloser
+ hoststatReporter *crunchstat.Reporter
+ statInterval time.Duration
+ cgroupRoot string
// What we expect the container's cgroup parent to be.
expectCgroupParent string
// What we tell docker to use as the container's cgroup
setCgroupParent string
cStateLock sync.Mutex
- cStarted bool // StartContainer() succeeded
cCancelled bool // StopContainer() invoked
enableNetwork string // one of "default" or "always"
go func(sig chan os.Signal) {
for s := range sig {
- runner.CrunchLog.Printf("caught signal: %v", s)
- runner.stop()
+ runner.stop(s)
}
}(runner.SigChan)
}
// stop the underlying Docker container.
-func (runner *ContainerRunner) stop() {
+func (runner *ContainerRunner) stop(sig os.Signal) {
runner.cStateLock.Lock()
defer runner.cStateLock.Unlock()
- if !runner.cStarted {
+ if sig != nil {
+ runner.CrunchLog.Printf("caught signal: %v", sig)
+ }
+ if runner.ContainerID == "" {
return
}
runner.cCancelled = true
}
}
-func (runner *ContainerRunner) stopSignals() {
- if runner.SigChan != nil {
- signal.Stop(runner.SigChan)
- }
-}
-
var errorBlacklist = []string{
"(?ms).*[Cc]annot connect to the Docker daemon.*",
"(?ms).*oci runtime error.*starting container process.*container init.*mounting.*to rootfs.*no such file or directory.*",
func (runner *ContainerRunner) SetupArvMountPoint(prefix string) (err error) {
if runner.ArvMountPoint == "" {
- runner.ArvMountPoint, err = runner.MkTempDir("", prefix)
+ runner.ArvMountPoint, err = runner.MkTempDir(runner.parentTemp, prefix)
}
return
}
+func copyfile(src string, dst string) (err error) {
+ srcfile, err := os.Open(src)
+ if err != nil {
+ return
+ }
+
+ os.MkdirAll(path.Dir(dst), 0777)
+
+ dstfile, err := os.Create(dst)
+ if err != nil {
+ return
+ }
+ _, err = io.Copy(dstfile, srcfile)
+ if err != nil {
+ return
+ }
+
+ err = srcfile.Close()
+ err2 := dstfile.Close()
+
+ if err != nil {
+ return
+ }
+
+ if err2 != nil {
+ return err2
+ }
+
+ return nil
+}
+
func (runner *ContainerRunner) SetupMounts() (err error) {
err = runner.SetupArvMountPoint("keep")
if err != nil {
runner.Binds = nil
runner.Volumes = make(map[string]struct{})
needCertMount := true
+ type copyFile struct {
+ src string
+ bind string
+ }
+ var copyFiles []copyFile
var binds []string
for bind := range runner.Container.Mounts {
pdhOnly = false
src = fmt.Sprintf("%s/by_id/%s", runner.ArvMountPoint, mnt.UUID)
} else if mnt.PortableDataHash != "" {
- if mnt.Writable {
+ if mnt.Writable && !strings.HasPrefix(bind, runner.Container.OutputPath+"/") {
return fmt.Errorf("Can never write to a collection specified by portable data hash")
}
idx := strings.Index(mnt.PortableDataHash, "/")
if mnt.Writable {
if bind == runner.Container.OutputPath {
runner.HostOutputDir = src
+ runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s", src, bind))
} else if strings.HasPrefix(bind, runner.Container.OutputPath+"/") {
- return fmt.Errorf("Writable mount points are not permitted underneath the output_path: %v", bind)
+ copyFiles = append(copyFiles, copyFile{src, runner.HostOutputDir + bind[len(runner.Container.OutputPath):]})
+ } else {
+ runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s", src, bind))
}
- runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s", src, bind))
} else {
runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s:ro", src, bind))
}
case mnt.Kind == "tmp":
var tmpdir string
- tmpdir, err = runner.MkTempDir("", "")
+ tmpdir, err = runner.MkTempDir(runner.parentTemp, "tmp")
if err != nil {
return fmt.Errorf("While creating mount temp dir: %v", err)
}
if staterr != nil {
return fmt.Errorf("While Chmod temp dir: %v", err)
}
- runner.CleanupTempDir = append(runner.CleanupTempDir, tmpdir)
runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s", tmpdir, bind))
if bind == runner.Container.OutputPath {
runner.HostOutputDir = tmpdir
// can ensure the file is world-readable
// inside the container, without having to
// make it world-readable on the docker host.
- tmpdir, err := runner.MkTempDir("", "")
+ tmpdir, err := runner.MkTempDir(runner.parentTemp, "json")
if err != nil {
return fmt.Errorf("creating temp dir: %v", err)
}
- runner.CleanupTempDir = append(runner.CleanupTempDir, tmpdir)
tmpfn := filepath.Join(tmpdir, "mountdata.json")
err = ioutil.WriteFile(tmpfn, jsondata, 0644)
if err != nil {
runner.Binds = append(runner.Binds, fmt.Sprintf("%s:%s:ro", tmpfn, bind))
case mnt.Kind == "git_tree":
- tmpdir, err := runner.MkTempDir("", "")
+ tmpdir, err := runner.MkTempDir(runner.parentTemp, "git_tree")
if err != nil {
return fmt.Errorf("creating temp dir: %v", err)
}
- runner.CleanupTempDir = append(runner.CleanupTempDir, tmpdir)
err = gitMount(mnt).extractTree(runner.ArvClient, tmpdir, token)
if err != nil {
return err
}
}
+ for _, cp := range copyFiles {
+ st, err := os.Stat(cp.src)
+ if err != nil {
+ return fmt.Errorf("While staging writable file from %q to %q: %v", cp.src, cp.bind, err)
+ }
+ if st.IsDir() {
+ err = filepath.Walk(cp.src, func(walkpath string, walkinfo os.FileInfo, walkerr error) error {
+ if walkerr != nil {
+ return walkerr
+ }
+ target := path.Join(cp.bind, walkpath[len(cp.src):])
+ if walkinfo.Mode().IsRegular() {
+ copyerr := copyfile(walkpath, target)
+ if copyerr != nil {
+ return copyerr
+ }
+ return os.Chmod(target, walkinfo.Mode()|0777)
+ } else if walkinfo.Mode().IsDir() {
+ mkerr := os.MkdirAll(target, 0777)
+ if mkerr != nil {
+ return mkerr
+ }
+ return os.Chmod(target, walkinfo.Mode()|os.ModeSetgid|0777)
+ } else {
+ return fmt.Errorf("Source %q is not a regular file or directory", cp.src)
+ }
+ })
+ } else if st.Mode().IsRegular() {
+ err = copyfile(cp.src, cp.bind)
+ if err == nil {
+ err = os.Chmod(cp.bind, st.Mode()|0777)
+ }
+ }
+ if err != nil {
+ return fmt.Errorf("While staging writable file from %q to %q: %v", cp.src, cp.bind, err)
+ }
+ }
+
return nil
}
func (runner *ContainerRunner) ProcessDockerAttach(containerReader io.Reader) {
// Handle docker log protocol
// https://docs.docker.com/engine/reference/api/docker_remote_api_v1.15/#attach-to-a-container
+ defer close(runner.loggingDone)
header := make([]byte, 8)
- for {
- _, readerr := io.ReadAtLeast(containerReader, header, 8)
-
- if readerr == nil {
- readsize := int64(header[7]) | (int64(header[6]) << 8) | (int64(header[5]) << 16) | (int64(header[4]) << 24)
- if header[0] == 1 {
- // stdout
- _, readerr = io.CopyN(runner.Stdout, containerReader, readsize)
- } else {
- // stderr
- _, readerr = io.CopyN(runner.Stderr, containerReader, readsize)
+ var err error
+ for err == nil {
+ _, err = io.ReadAtLeast(containerReader, header, 8)
+ if err != nil {
+ if err == io.EOF {
+ err = nil
}
+ break
}
+ readsize := int64(header[7]) | (int64(header[6]) << 8) | (int64(header[5]) << 16) | (int64(header[4]) << 24)
+ if header[0] == 1 {
+ // stdout
+ _, err = io.CopyN(runner.Stdout, containerReader, readsize)
+ } else {
+ // stderr
+ _, err = io.CopyN(runner.Stderr, containerReader, readsize)
+ }
+ }
- if readerr != nil {
- if readerr != io.EOF {
- runner.CrunchLog.Printf("While reading docker logs: %v", readerr)
- }
-
- closeerr := runner.Stdout.Close()
- if closeerr != nil {
- runner.CrunchLog.Printf("While closing stdout logs: %v", closeerr)
- }
+ if err != nil {
+ runner.CrunchLog.Printf("error reading docker logs: %v", err)
+ }
- closeerr = runner.Stderr.Close()
- if closeerr != nil {
- runner.CrunchLog.Printf("While closing stderr logs: %v", closeerr)
- }
+ err = runner.Stdout.Close()
+ if err != nil {
+ runner.CrunchLog.Printf("error closing stdout logs: %v", err)
+ }
- if runner.statReporter != nil {
- runner.statReporter.Stop()
- closeerr = runner.statLogger.Close()
- if closeerr != nil {
- runner.CrunchLog.Printf("While closing crunchstat logs: %v", closeerr)
- }
- }
+ err = runner.Stderr.Close()
+ if err != nil {
+ runner.CrunchLog.Printf("error closing stderr logs: %v", err)
+ }
- runner.loggingDone <- true
- close(runner.loggingDone)
- return
+ if runner.statReporter != nil {
+ runner.statReporter.Stop()
+ err = runner.statLogger.Close()
+ if err != nil {
+ runner.CrunchLog.Printf("error closing crunchstat logs: %v", err)
}
}
}
-func (runner *ContainerRunner) StartCrunchstat() {
+func (runner *ContainerRunner) stopHoststat() error {
+ if runner.hoststatReporter == nil {
+ return nil
+ }
+ runner.hoststatReporter.Stop()
+ err := runner.hoststatLogger.Close()
+ if err != nil {
+ return fmt.Errorf("error closing hoststat logs: %v", err)
+ }
+ return nil
+}
+
+func (runner *ContainerRunner) startHoststat() {
+ runner.hoststatLogger = NewThrottledLogger(runner.NewLogWriter("hoststat"))
+ runner.hoststatReporter = &crunchstat.Reporter{
+ Logger: log.New(runner.hoststatLogger, "", 0),
+ CgroupRoot: runner.cgroupRoot,
+ PollPeriod: runner.statInterval,
+ }
+ runner.hoststatReporter.Start()
+}
+
+func (runner *ContainerRunner) startCrunchstat() {
runner.statLogger = NewThrottledLogger(runner.NewLogWriter("crunchstat"))
runner.statReporter = &crunchstat.Reporter{
CID: runner.ContainerID,
_, err := io.Copy(response.Conn, stdinRdr)
if err != nil {
runner.CrunchLog.Print("While writing stdin collection to docker container %q", err)
- runner.stop()
+ runner.stop(nil)
}
stdinRdr.Close()
response.CloseWrite()
_, err := io.Copy(response.Conn, bytes.NewReader(stdinJson))
if err != nil {
runner.CrunchLog.Print("While writing stdin json to docker container %q", err)
- runner.stop()
+ runner.stop(nil)
}
response.CloseWrite()
}()
runner.ContainerConfig.Volumes = runner.Volumes
+ maxRAM := int64(runner.Container.RuntimeConstraints.RAM)
runner.HostConfig = dockercontainer.HostConfig{
Binds: runner.Binds,
LogConfig: dockercontainer.LogConfig{
},
Resources: dockercontainer.Resources{
CgroupParent: runner.setCgroupParent,
+ NanoCPUs: int64(runner.Container.RuntimeConstraints.VCPUs) * 1000000000,
+ Memory: maxRAM, // RAM
+ MemorySwap: maxRAM, // RAM+swap
+ KernelMemory: maxRAM, // kernel portion
},
}
}
return fmt.Errorf("could not start container: %v%s", err, advice)
}
- runner.cStarted = true
return nil
}
// WaitFinish waits for the container to terminate, capture the exit code, and
// close the stdout/stderr logging.
-func (runner *ContainerRunner) WaitFinish() (err error) {
+func (runner *ContainerRunner) WaitFinish() error {
runner.CrunchLog.Print("Waiting for container to finish")
waitOk, waitErr := runner.Docker.ContainerWait(context.TODO(), runner.ContainerID, dockercontainer.WaitConditionNotRunning)
+ arvMountExit := runner.ArvMountExit
+ for {
+ select {
+ case waitBody := <-waitOk:
+ runner.CrunchLog.Printf("Container exited with code: %v", waitBody.StatusCode)
+ code := int(waitBody.StatusCode)
+ runner.ExitCode = &code
+
+ // wait for stdout/stderr to complete
+ <-runner.loggingDone
+ return nil
- go func() {
- <-runner.ArvMountExit
- if runner.cStarted {
+ case err := <-waitErr:
+ return fmt.Errorf("container wait: %v", err)
+
+ case <-arvMountExit:
runner.CrunchLog.Printf("arv-mount exited while container is still running. Stopping container.")
- runner.stop()
+ runner.stop(nil)
+ // arvMountExit will always be ready now that
+ // it's closed, but that doesn't interest us.
+ arvMountExit = nil
}
- }()
-
- var waitBody dockercontainer.ContainerWaitOKBody
- select {
- case waitBody = <-waitOk:
- case err = <-waitErr:
- }
-
- // Container isn't running any more
- runner.cStarted = false
-
- if err != nil {
- return fmt.Errorf("container wait: %v", err)
}
-
- runner.CrunchLog.Printf("Container exited with code: %v", waitBody.StatusCode)
- code := int(waitBody.StatusCode)
- runner.ExitCode = &code
-
- // wait for stdout/stderr to complete
- <-runner.loggingDone
-
- return nil
}
var ErrNotInOutputDir = fmt.Errorf("Must point to path within the output directory")
// go through mounts and try reverse map to collection reference
for _, bind := range binds {
mnt := runner.Container.Mounts[bind]
- if tgt == bind || strings.HasPrefix(tgt, bind+"/") {
+ if (tgt == bind || strings.HasPrefix(tgt, bind+"/")) && !mnt.Writable {
// get path relative to bind
targetSuffix := tgt[len(bind):]
continue
}
- if mnt.ExcludeFromOutput == true {
+ if mnt.ExcludeFromOutput == true || mnt.Writable {
continue
}
}
}
- for _, tmpdir := range runner.CleanupTempDir {
- if rmerr := os.RemoveAll(tmpdir); rmerr != nil {
- runner.CrunchLog.Printf("While cleaning up temporary directory %s: %v", tmpdir, rmerr)
- }
+ if rmerr := os.RemoveAll(runner.parentTemp); rmerr != nil {
+ runner.CrunchLog.Printf("While cleaning up temporary directory %s: %v", runner.parentTemp, rmerr)
}
}
// CommitLogs posts the collection containing the final container logs.
func (runner *ContainerRunner) CommitLogs() error {
- runner.CrunchLog.Print(runner.finalState)
+ func() {
+ // Hold cStateLock to prevent races on CrunchLog (e.g., stop()).
+ runner.cStateLock.Lock()
+ defer runner.cStateLock.Unlock()
- if runner.arvMountLog != nil {
- runner.arvMountLog.Close()
- }
- runner.CrunchLog.Close()
+ runner.CrunchLog.Print(runner.finalState)
+
+ if runner.arvMountLog != nil {
+ runner.arvMountLog.Close()
+ }
+ runner.CrunchLog.Close()
- // Closing CrunchLog above allows them to be committed to Keep at this
- // point, but re-open crunch log with ArvClient in case there are any
- // other further errors (such as failing to write the log to Keep!)
- // while shutting down
- runner.CrunchLog = NewThrottledLogger(&ArvLogWriter{ArvClient: runner.ArvClient,
- UUID: runner.Container.UUID, loggingStream: "crunch-run", writeCloser: nil})
- runner.CrunchLog.Immediate = log.New(os.Stderr, runner.Container.UUID+" ", 0)
+ // Closing CrunchLog above allows them to be committed to Keep at this
+ // point, but re-open crunch log with ArvClient in case there are any
+ // other further errors (such as failing to write the log to Keep!)
+ // while shutting down
+ runner.CrunchLog = NewThrottledLogger(&ArvLogWriter{ArvClient: runner.ArvClient,
+ UUID: runner.Container.UUID, loggingStream: "crunch-run", writeCloser: nil})
+ runner.CrunchLog.Immediate = log.New(os.Stderr, runner.Container.UUID+" ", 0)
+ }()
if runner.LogsPDH != nil {
// If we have already assigned something to LogsPDH,
runner.finalState = "Queued"
defer func() {
- runner.stopSignals()
runner.CleanupDirs()
runner.CrunchLog.Printf("crunch-run finished")
}
checkErr(runner.CaptureOutput())
+ checkErr(runner.stopHoststat())
checkErr(runner.CommitLogs())
checkErr(runner.UpdateContainerFinal())
}()
if err != nil {
return
}
-
- // setup signal handling
runner.setupSignals()
+ runner.startHoststat()
// check for and/or load image
err = runner.LoadImage()
}
runner.finalState = "Cancelled"
- runner.StartCrunchstat()
+ runner.startCrunchstat()
err = runner.StartContainer()
if err != nil {
os.Exit(1)
}
+ parentTemp, tmperr := cr.MkTempDir("", "crunch-run."+containerId+".")
+ if tmperr != nil {
+ log.Fatalf("%s: %v", containerId, tmperr)
+ }
+
+ cr.parentTemp = parentTemp
cr.statInterval = *statInterval
cr.cgroupRoot = *cgroupRoot
cr.expectCgroupParent = *cgroupParent
projects / arvados.git / blobdiff