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Merge pull request #20210 from Microsoft/jjh/hcswin32-v2

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Windows: Revendor HCS to use revised error scheme
This commit is contained in:
David Calavera 2016-02-10 17:20:14 -08:00
commit dfebb6074f
8 changed files with 90 additions and 79 deletions
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14
daemon/execdriver/windows/exec.go
View file

@ -4,6 +4,7 @@ package windows
import (
"fmt"
"syscall"
"github.com/Microsoft/hcsshim"
"github.com/Sirupsen/logrus"
@ -17,7 +18,6 @@ func (d *Driver) Exec(c *execdriver.Command, processConfig *execdriver.ProcessCo
term execdriver.Terminal
err error
exitCode int32
errno uint32
)
active := d.activeContainers[c.ID]
@ -41,13 +41,13 @@ func (d *Driver) Exec(c *execdriver.Command, processConfig *execdriver.ProcessCo
}
// Start the command running in the container.
pid, stdin, stdout, stderr, rc, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !processConfig.Tty, createProcessParms)
pid, stdin, stdout, stderr, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !processConfig.Tty, createProcessParms)
if err != nil {
// TODO Windows: TP4 Workaround. In Hyper-V containers, there is a limitation
// of one exec per container. This should be fixed post TP4. CreateProcessInComputeSystem
// will return a specific error which we handle here to give a good error message
// back to the user instead of an inactionable "An invalid argument was supplied"
if rc == hcsshim.Win32InvalidArgument {
if herr, ok := err.(*hcsshim.HcsError); ok && herr.Err == hcsshim.WSAEINVAL {
return -1, fmt.Errorf("The limit of docker execs per Hyper-V container has been exceeded")
}
logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
@ -75,12 +75,12 @@ func (d *Driver) Exec(c *execdriver.Command, processConfig *execdriver.ProcessCo
hooks.Start(&c.ProcessConfig, int(pid), chOOM)
}
if exitCode, errno, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite); err != nil {
if errno == hcsshim.Win32PipeHasBeenEnded {
logrus.Debugf("Exiting Run() after WaitForProcessInComputeSystem failed with recognised error 0x%X", errno)
if exitCode, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite); err != nil {
if herr, ok := err.(*hcsshim.HcsError); ok && herr.Err == syscall.ERROR_BROKEN_PIPE {
logrus.Debugf("Exiting Run() after WaitForProcessInComputeSystem failed with recognised error %s", err)
return hcsshim.WaitErrExecFailed, nil
}
logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): 0x%X %s", errno, err)
logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): %s", err)
return -1, err
}

58
daemon/execdriver/windows/run.go
View file

@ -9,6 +9,7 @@ import (
"path/filepath"
"strconv"
"strings"
"syscall"
"time"
"github.com/Microsoft/hcsshim"
@ -20,6 +21,16 @@ import (
// preconfigured on the server.
const defaultContainerNAT = "ContainerNAT"
// Win32 error codes that are used for various workarounds
// These really should be ALL_CAPS to match golangs syscall library and standard
// Win32 error conventions, but golint insists on CamelCase.
const (
CoEClassstring = syscall.Errno(0x800401F3) // Invalid class string
ErrorNoNetwork = syscall.Errno(1222) // The network is not present or not started
ErrorBadPathname = syscall.Errno(161) // The specified path is invalid
ErrorInvalidObject = syscall.Errno(0x800710D8) // The object identifier does not represent a valid object
)
type layer struct {
ID string
Path string
@ -237,17 +248,19 @@ func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execd
err = hcsshim.CreateComputeSystem(c.ID, configuration)
if err != nil {
if TP4RetryHack {
if !strings.Contains(err.Error(), `Win32 API call returned error r1=0x800401f3`) && // Invalid class string
!strings.Contains(err.Error(), `Win32 API call returned error r1=0x80070490`) && // Element not found
!strings.Contains(err.Error(), `Win32 API call returned error r1=0x80070002`) && // The system cannot find the file specified
!strings.Contains(err.Error(), `Win32 API call returned error r1=0x800704c6`) && // The network is not present or not started
!strings.Contains(err.Error(), `Win32 API call returned error r1=0x800700a1`) && // The specified path is invalid
!strings.Contains(err.Error(), `Win32 API call returned error r1=0x800710d8`) { // The object identifier does not represent a valid object
logrus.Debugln("Failed to create temporary container ", err)
return execdriver.ExitStatus{ExitCode: -1}, err
if herr, ok := err.(*hcsshim.HcsError); ok {
if herr.Err != syscall.ERROR_NOT_FOUND && // Element not found
herr.Err != syscall.ERROR_FILE_NOT_FOUND && // The system cannot find the file specified
herr.Err != ErrorNoNetwork && // The network is not present or not started
herr.Err != ErrorBadPathname && // The specified path is invalid
herr.Err != CoEClassstring && // Invalid class string
herr.Err != ErrorInvalidObject { // The object identifier does not represent a valid object
logrus.Debugln("Failed to create temporary container ", err)
return execdriver.ExitStatus{ExitCode: -1}, err
}
logrus.Warnf("Invoking Windows TP4 retry hack (%d of %d)", i, maxAttempts-1)
time.Sleep(50 * time.Millisecond)
}
logrus.Warnf("Invoking Windows TP4 retry hack (%d of %d)", i, maxAttempts-1)
time.Sleep(50 * time.Millisecond)
}
} else {
break
@ -265,16 +278,17 @@ func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execd
// Stop the container
if forceKill {
logrus.Debugf("Forcibly terminating container %s", c.ID)
if errno, err := hcsshim.TerminateComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
logrus.Warnf("Ignoring error from TerminateComputeSystem 0x%X %s", errno, err)
if err := hcsshim.TerminateComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
logrus.Warnf("Ignoring error from TerminateComputeSystem %s", err)
}
} else {
logrus.Debugf("Shutting down container %s", c.ID)
if errno, err := hcsshim.ShutdownComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
if errno != hcsshim.Win32SystemShutdownIsInProgress &&
errno != hcsshim.Win32SpecifiedPathInvalid &&
errno != hcsshim.Win32SystemCannotFindThePathSpecified {
logrus.Warnf("Ignoring error from ShutdownComputeSystem 0x%X %s", errno, err)
if err := hcsshim.ShutdownComputeSystem(c.ID, hcsshim.TimeoutInfinite, "exec-run-defer"); err != nil {
if herr, ok := err.(*hcsshim.HcsError); !ok ||
(herr.Err != hcsshim.ERROR_SHUTDOWN_IN_PROGRESS &&
herr.Err != ErrorBadPathname &&
herr.Err != syscall.ERROR_PATH_NOT_FOUND) {
logrus.Warnf("Ignoring error from ShutdownComputeSystem %s", err)
}
}
}
@ -296,7 +310,7 @@ func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execd
}
// Start the command running in the container.
pid, stdin, stdout, stderr, _, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !c.ProcessConfig.Tty, createProcessParms)
pid, stdin, stdout, stderr, err := hcsshim.CreateProcessInComputeSystem(c.ID, pipes.Stdin != nil, true, !c.ProcessConfig.Tty, createProcessParms)
if err != nil {
logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
return execdriver.ExitStatus{ExitCode: -1}, err
@ -333,13 +347,9 @@ func (d *Driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, hooks execd
hooks.Start(&c.ProcessConfig, int(pid), chOOM)
}
var (
exitCode int32
errno uint32
)
exitCode, errno, err = hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite)
exitCode, err := hcsshim.WaitForProcessInComputeSystem(c.ID, pid, hcsshim.TimeoutInfinite)
if err != nil {
if errno != hcsshim.Win32PipeHasBeenEnded {
if herr, ok := err.(*hcsshim.HcsError); ok && herr.Err != syscall.ERROR_BROKEN_PIPE {
logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): %s", err)
}
// Do NOT return err here as the container would have

8
daemon/execdriver/windows/terminatekill.go
View file

@ -28,8 +28,8 @@ func kill(id string, pid int, sig syscall.Signal) error {
if sig == syscall.SIGKILL || forceKill {
// Terminate the compute system
if errno, err := hcsshim.TerminateComputeSystem(id, hcsshim.TimeoutInfinite, context); err != nil {
logrus.Errorf("Failed to terminate %s - 0x%X %q", id, errno, err)
if err := hcsshim.TerminateComputeSystem(id, hcsshim.TimeoutInfinite, context); err != nil {
logrus.Errorf("Failed to terminate %s - %q", id, err)
}
} else {
@ -41,8 +41,8 @@ func kill(id string, pid int, sig syscall.Signal) error {
}
// Shutdown the compute system
if errno, err := hcsshim.ShutdownComputeSystem(id, hcsshim.TimeoutInfinite, context); err != nil {
logrus.Errorf("Failed to shutdown %s - 0x%X %q", id, errno, err)
if err := hcsshim.ShutdownComputeSystem(id, hcsshim.TimeoutInfinite, context); err != nil {
logrus.Errorf("Failed to shutdown %s - %q", id, err)
}
}
return err

2
hack/vendor.sh
View file

@ -16,7 +16,7 @@ clone git github.com/gorilla/mux e444e69cbd
clone git github.com/kr/pty 5cf931ef8f
clone git github.com/mattn/go-shellwords v1.0.0
clone git github.com/mattn/go-sqlite3 v1.1.0
clone git github.com/Microsoft/hcsshim 35ad4d808a97203cb1748d7c43167e91f51e7f86
clone git github.com/Microsoft/hcsshim 43858ef3c5c944dfaaabfbe8b6ea093da7f28dba
clone git github.com/mistifyio/go-zfs v2.1.1
clone git github.com/tchap/go-patricia v2.1.0
clone git github.com/vdemeester/shakers 3c10293ce22b900c27acad7b28656196fcc2f73b

14
vendor/src/github.com/Microsoft/hcsshim/createprocess.go vendored
View file

@ -48,10 +48,9 @@ func makeOpenFiles(hs []syscall.Handle) (_ []io.ReadWriteCloser, err error) {
// CreateProcessInComputeSystem starts a process in a container. This is invoked, for example,
// as a result of docker run, docker exec, or RUN in Dockerfile. If successful,
// it returns the PID of the process.
func CreateProcessInComputeSystem(id string, useStdin bool, useStdout bool, useStderr bool, params CreateProcessParams) (_ uint32, _ io.WriteCloser, _ io.ReadCloser, _ io.ReadCloser, hr uint32, err error) {
func CreateProcessInComputeSystem(id string, useStdin bool, useStdout bool, useStderr bool, params CreateProcessParams) (_ uint32, _ io.WriteCloser, _ io.ReadCloser, _ io.ReadCloser, err error) {
title := "HCSShim::CreateProcessInComputeSystem"
logrus.Debugf(title+" id=%s", id)
hr = 0xFFFFFFFF
// If we are not emulating a console, ignore any console size passed to us
if !params.EmulateConsole {
@ -82,14 +81,13 @@ func CreateProcessInComputeSystem(id string, useStdin bool, useStdout bool, useS
err = createProcessWithStdHandlesInComputeSystem(id, string(paramsJson), &pid, stdinParam, stdoutParam, stderrParam)
if err != nil {
winerr := makeErrorf(err, title, "id=%s params=%v", id, params)
hr = winerr.HResult()
herr := makeErrorf(err, title, "id=%s params=%v", id, params)
err = herr
// Windows TP4: Hyper-V Containers may return this error with more than one
// concurrent exec. Do not log it as an error
if hr != Win32InvalidArgument {
logrus.Error(winerr)
if herr.Err != WSAEINVAL {
logrus.Error(err)
}
err = winerr
return
}
@ -99,5 +97,5 @@ func CreateProcessInComputeSystem(id string, useStdin bool, useStdout bool, useS
}
logrus.Debugf(title+" - succeeded id=%s params=%s pid=%d", id, paramsJson, pid)
return pid, pipes[0], pipes[1], pipes[2], 0, nil
return pid, pipes[0], pipes[1], pipes[2], nil
}

53
vendor/src/github.com/Microsoft/hcsshim/hcsshim.go vendored
View file

@ -43,47 +43,52 @@ const (
// Specific user-visible exit codes
WaitErrExecFailed = 32767
// Known Win32 RC values which should be trapped
Win32PipeHasBeenEnded = 0x8007006d // WaitForProcessInComputeSystem: The pipe has been ended
Win32SystemShutdownIsInProgress = 0x8007045B // ShutdownComputeSystem: A system shutdown is in progress
Win32SpecifiedPathInvalid = 0x800700A1 // ShutdownComputeSystem: The specified path is invalid
Win32SystemCannotFindThePathSpecified = 0x80070003 // ShutdownComputeSystem: The system cannot find the path specified
Win32InvalidArgument = 0x80072726 // CreateProcessInComputeSystem: An invalid argument was supplied
EFail = 0x80004005
ERROR_GEN_FAILURE = syscall.Errno(31)
ERROR_SHUTDOWN_IN_PROGRESS = syscall.Errno(1115)
WSAEINVAL = syscall.Errno(10022)
// Timeout on wait calls
TimeoutInfinite = 0xFFFFFFFF
)
type hcsError struct {
type HcsError struct {
title string
rest string
err error
Err error
}
type Win32Error interface {
error
HResult() uint32
func makeError(err error, title, rest string) *HcsError {
if hr, ok := err.(syscall.Errno); ok {
// Convert the HRESULT to a Win32 error code so that it better matches
// error codes returned from go and other packages.
err = syscall.Errno(win32FromHresult(uint32(hr)))
}
return &HcsError{title, rest, err}
}
func makeError(err error, title, rest string) Win32Error {
return &hcsError{title, rest, err}
}
func makeErrorf(err error, title, format string, a ...interface{}) Win32Error {
func makeErrorf(err error, title, format string, a ...interface{}) *HcsError {
return makeError(err, title, fmt.Sprintf(format, a...))
}
func (e *hcsError) HResult() uint32 {
if hr, ok := e.err.(syscall.Errno); ok {
return uint32(hr)
} else {
return EFail
func win32FromError(err error) uint32 {
if herr, ok := err.(*HcsError); ok {
return win32FromError(herr.Err)
}
if code, ok := err.(syscall.Errno); ok {
return win32FromHresult(uint32(code))
}
return uint32(ERROR_GEN_FAILURE)
}
func (e *hcsError) Error() string {
return fmt.Sprintf("%s- Win32 API call returned error r1=0x%x err=%s%s", e.title, e.HResult(), e.err, e.rest)
func win32FromHresult(hr uint32) uint32 {
if hr&0x1fff0000 == 0x00070000 {
return hr & 0xffff
}
return hr
}
func (e *HcsError) Error() string {
return fmt.Sprintf("%s- Win32 API call returned error r1=0x%x err=%s%s", e.title, win32FromError(e.Err), e.Err, e.rest)
}
func convertAndFreeCoTaskMemString(buffer *uint16) string {

11
vendor/src/github.com/Microsoft/hcsshim/shutdownterminatecomputesystem.go vendored
View file

@ -3,19 +3,19 @@ package hcsshim
import "github.com/Sirupsen/logrus"
// TerminateComputeSystem force terminates a container.
func TerminateComputeSystem(id string, timeout uint32, context string) (uint32, error) {
func TerminateComputeSystem(id string, timeout uint32, context string) error {
return shutdownTerminate(false, id, timeout, context)
}
// ShutdownComputeSystem shuts down a container by requesting a shutdown within
// the container operating system.
func ShutdownComputeSystem(id string, timeout uint32, context string) (uint32, error) {
func ShutdownComputeSystem(id string, timeout uint32, context string) error {
return shutdownTerminate(true, id, timeout, context)
}
// shutdownTerminate is a wrapper for ShutdownComputeSystem and TerminateComputeSystem
// which have very similar calling semantics
func shutdownTerminate(shutdown bool, id string, timeout uint32, context string) (uint32, error) {
func shutdownTerminate(shutdown bool, id string, timeout uint32, context string) error {
var (
title = "HCSShim::"
@ -35,10 +35,9 @@ func shutdownTerminate(shutdown bool, id string, timeout uint32, context string)
}
if err != nil {
err := makeErrorf(err, title, "id=%s context=%s", id, context)
return err.HResult(), err
return makeErrorf(err, title, "id=%s context=%s", id, context)
}
logrus.Debugf(title+" succeeded id=%s context=%s", id, context)
return 0, nil
return nil
}

9
vendor/src/github.com/Microsoft/hcsshim/waitprocess.go vendored
View file

@ -3,8 +3,8 @@ package hcsshim
import "github.com/Sirupsen/logrus"
// WaitForProcessInComputeSystem waits for a process ID to terminate and returns
// the exit code. Returns exitcode, errno, error
func WaitForProcessInComputeSystem(id string, processid uint32, timeout uint32) (int32, uint32, error) {
// the exit code. Returns exitcode, error
func WaitForProcessInComputeSystem(id string, processid uint32, timeout uint32) (int32, error) {
title := "HCSShim::WaitForProcessInComputeSystem"
logrus.Debugf(title+" id=%s processid=%d", id, processid)
@ -12,10 +12,9 @@ func WaitForProcessInComputeSystem(id string, processid uint32, timeout uint32)
var exitCode uint32
err := waitForProcessInComputeSystem(id, processid, timeout, &exitCode)
if err != nil {
err := makeErrorf(err, title, "id=%s", id)
return 0, err.HResult(), err
return 0, makeErrorf(err, title, "id=%s", id)
}
logrus.Debugf(title+" succeeded id=%s processid=%d exitcode=%d", id, processid, exitCode)
return int32(exitCode), 0, nil
return int32(exitCode), nil
}