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-rw-r--r--pkg/adapter/checkpoint_restore.go145
-rw-r--r--pkg/adapter/client.go67
-rw-r--r--pkg/adapter/client_unix.go30
-rw-r--r--pkg/adapter/client_windows.go15
-rw-r--r--pkg/adapter/containers.go62
-rw-r--r--pkg/adapter/containers_remote.go33
-rw-r--r--pkg/adapter/runtime_remote.go27
-rw-r--r--pkg/rootless/rootless_linux.c22
-rw-r--r--pkg/rootless/rootless_linux.go3
-rw-r--r--pkg/varlinkapi/images.go67
-rw-r--r--pkg/varlinkapi/virtwriter/virtwriter.go106
11 files changed, 488 insertions, 89 deletions
diff --git a/pkg/adapter/checkpoint_restore.go b/pkg/adapter/checkpoint_restore.go
new file mode 100644
index 000000000..97ba5ecf7
--- /dev/null
+++ b/pkg/adapter/checkpoint_restore.go
@@ -0,0 +1,145 @@
+// +build !remoteclient
+
+package adapter
+
+import (
+ "context"
+ "github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/libpod/image"
+ "github.com/containers/storage/pkg/archive"
+ jsoniter "github.com/json-iterator/go"
+ spec "github.com/opencontainers/runtime-spec/specs-go"
+ "github.com/pkg/errors"
+ "io"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+)
+
+// Prefixing the checkpoint/restore related functions with 'cr'
+
+// crImportFromJSON imports the JSON files stored in the exported
+// checkpoint tarball
+func crImportFromJSON(filePath string, v interface{}) error {
+ jsonFile, err := os.Open(filePath)
+ if err != nil {
+ return errors.Wrapf(err, "Failed to open container definition %s for restore", filePath)
+ }
+ defer jsonFile.Close()
+
+ content, err := ioutil.ReadAll(jsonFile)
+ if err != nil {
+ return errors.Wrapf(err, "Failed to read container definition %s for restore", filePath)
+ }
+ json := jsoniter.ConfigCompatibleWithStandardLibrary
+ if err = json.Unmarshal([]byte(content), v); err != nil {
+ return errors.Wrapf(err, "Failed to unmarshal container definition %s for restore", filePath)
+ }
+
+ return nil
+}
+
+// crImportCheckpoint it the function which imports the information
+// from checkpoint tarball and re-creates the container from that information
+func crImportCheckpoint(ctx context.Context, runtime *libpod.Runtime, input string, name string) ([]*libpod.Container, error) {
+ // First get the container definition from the
+ // tarball to a temporary directory
+ archiveFile, err := os.Open(input)
+ if err != nil {
+ return nil, errors.Wrapf(err, "Failed to open checkpoint archive %s for import", input)
+ }
+ defer archiveFile.Close()
+ options := &archive.TarOptions{
+ // Here we only need the files config.dump and spec.dump
+ ExcludePatterns: []string{
+ "checkpoint",
+ "artifacts",
+ "ctr.log",
+ "network.status",
+ },
+ }
+ dir, err := ioutil.TempDir("", "checkpoint")
+ if err != nil {
+ return nil, err
+ }
+ defer os.RemoveAll(dir)
+ err = archive.Untar(archiveFile, dir, options)
+ if err != nil {
+ return nil, errors.Wrapf(err, "Unpacking of checkpoint archive %s failed", input)
+ }
+
+ // Load spec.dump from temporary directory
+ spec := new(spec.Spec)
+ if err := crImportFromJSON(filepath.Join(dir, "spec.dump"), spec); err != nil {
+ return nil, err
+ }
+
+ // Load config.dump from temporary directory
+ config := new(libpod.ContainerConfig)
+ if err = crImportFromJSON(filepath.Join(dir, "config.dump"), config); err != nil {
+ return nil, err
+ }
+
+ // This should not happen as checkpoints with these options are not exported.
+ if (len(config.Dependencies) > 0) || (len(config.NamedVolumes) > 0) {
+ return nil, errors.Errorf("Cannot import checkpoints of containers with named volumes or dependencies")
+ }
+
+ ctrID := config.ID
+ newName := false
+
+ // Check if the restored container gets a new name
+ if name != "" {
+ config.ID = ""
+ config.Name = name
+ newName = true
+ }
+
+ ctrName := config.Name
+
+ // The code to load the images is copied from create.go
+ var writer io.Writer
+ // In create.go this only set if '--quiet' does not exist.
+ writer = os.Stderr
+ rtc, err := runtime.GetConfig()
+ if err != nil {
+ return nil, err
+ }
+
+ _, err = runtime.ImageRuntime().New(ctx, config.RootfsImageName, rtc.SignaturePolicyPath, "", writer, nil, image.SigningOptions{}, false, nil)
+ if err != nil {
+ return nil, err
+ }
+
+ // Now create a new container from the just loaded information
+ container, err := runtime.RestoreContainer(ctx, spec, config)
+ if err != nil {
+ return nil, err
+ }
+
+ var containers []*libpod.Container
+ if container == nil {
+ return nil, nil
+ }
+
+ containerConfig := container.Config()
+ if containerConfig.Name != ctrName {
+ return nil, errors.Errorf("Name of restored container (%s) does not match requested name (%s)", containerConfig.Name, ctrName)
+ }
+
+ if newName == false {
+ // Only check ID for a restore with the same name.
+ // Using -n to request a new name for the restored container, will also create a new ID
+ if containerConfig.ID != ctrID {
+ return nil, errors.Errorf("ID of restored container (%s) does not match requested ID (%s)", containerConfig.ID, ctrID)
+ }
+ }
+
+ // Check if the ExitCommand points to the correct container ID
+ if containerConfig.ExitCommand[len(containerConfig.ExitCommand)-1] != containerConfig.ID {
+ return nil, errors.Errorf("'ExitCommandID' uses ID %s instead of container ID %s", containerConfig.ExitCommand[len(containerConfig.ExitCommand)-1], containerConfig.ID)
+ }
+
+ containers = append(containers, container)
+ return containers, nil
+}
diff --git a/pkg/adapter/client.go b/pkg/adapter/client.go
index 01914834f..69aa3220a 100644
--- a/pkg/adapter/client.go
+++ b/pkg/adapter/client.go
@@ -6,42 +6,52 @@ import (
"fmt"
"os"
+ "github.com/containers/libpod/cmd/podman/remoteclientconfig"
"github.com/pkg/errors"
+ "github.com/sirupsen/logrus"
"github.com/varlink/go/varlink"
)
var remoteEndpoint *Endpoint
func (r RemoteRuntime) RemoteEndpoint() (remoteEndpoint *Endpoint, err error) {
- if remoteEndpoint == nil {
- remoteEndpoint = &Endpoint{Unknown, ""}
- } else {
- return remoteEndpoint, nil
- }
+ remoteConfigConnections, _ := remoteclientconfig.ReadRemoteConfig(r.config)
- // I'm leaving this here for now as a document of the birdge format. It can be removed later once the bridge
- // function is more flushed out.
- // bridge := `ssh -T root@192.168.122.1 "/usr/bin/varlink -A '/usr/bin/podman varlink \$VARLINK_ADDRESS' bridge"`
- if len(r.cmd.RemoteHost) > 0 {
- // The user has provided a remote host endpoint
+ // If the user defines an env variable for podman_varlink_bridge
+ // we use that as passed.
+ if bridge := os.Getenv("PODMAN_VARLINK_BRIDGE"); bridge != "" {
+ logrus.Debug("creating a varlink bridge based on env variable")
+ remoteEndpoint, err = newBridgeConnection(bridge, nil, r.cmd.LogLevel)
+ // if an environment variable for podman_varlink_address is defined,
+ // we used that as passed
+ } else if address := os.Getenv("PODMAN_VARLINK_ADDRESS"); address != "" {
+ logrus.Debug("creating a varlink address based on env variable: %s", address)
+ remoteEndpoint, err = newSocketConnection(address)
+ // if the user provides a remote host, we use it to configure a bridge connection
+ } else if len(r.cmd.RemoteHost) > 0 {
+ logrus.Debug("creating a varlink bridge based on user input")
if len(r.cmd.RemoteUserName) < 1 {
return nil, errors.New("you must provide a username when providing a remote host name")
}
- remoteEndpoint.Type = BridgeConnection
- remoteEndpoint.Connection = fmt.Sprintf(
- `ssh -T %s@%s /usr/bin/varlink -A \'/usr/bin/podman --log-level=%s varlink \\\$VARLINK_ADDRESS\' bridge`,
- r.cmd.RemoteUserName, r.cmd.RemoteHost, r.cmd.LogLevel)
-
- } else if bridge := os.Getenv("PODMAN_VARLINK_BRIDGE"); bridge != "" {
- remoteEndpoint.Type = BridgeConnection
- remoteEndpoint.Connection = bridge
- } else {
- address := os.Getenv("PODMAN_VARLINK_ADDRESS")
- if address == "" {
- address = DefaultAddress
+ rc := remoteclientconfig.RemoteConnection{r.cmd.RemoteHost, r.cmd.RemoteUserName, false}
+ remoteEndpoint, err = newBridgeConnection("", &rc, r.cmd.LogLevel)
+ // if the user has a config file with connections in it
+ } else if len(remoteConfigConnections.Connections) > 0 {
+ logrus.Debug("creating a varlink bridge based configuration file")
+ var rc *remoteclientconfig.RemoteConnection
+ if len(r.cmd.ConnectionName) > 0 {
+ rc, err = remoteConfigConnections.GetRemoteConnection(r.cmd.ConnectionName)
+ } else {
+ rc, err = remoteConfigConnections.GetDefault()
+ }
+ if err != nil {
+ return nil, err
}
- remoteEndpoint.Type = DirectConnection
- remoteEndpoint.Connection = address
+ remoteEndpoint, err = newBridgeConnection("", rc, r.cmd.LogLevel)
+ // last resort is to make a socket connection with the default varlink address for root user
+ } else {
+ logrus.Debug("creating a varlink address based default root address")
+ remoteEndpoint, err = newSocketConnection(DefaultAddress)
}
return
}
@@ -72,3 +82,12 @@ func (r RemoteRuntime) RefreshConnection() error {
r.Conn = newConn
return nil
}
+
+// newSocketConnection returns an endpoint for a uds based connection
+func newSocketConnection(address string) (*Endpoint, error) {
+ endpoint := Endpoint{
+ Type: DirectConnection,
+ Connection: address,
+ }
+ return &endpoint, nil
+}
diff --git a/pkg/adapter/client_unix.go b/pkg/adapter/client_unix.go
new file mode 100644
index 000000000..e0406567c
--- /dev/null
+++ b/pkg/adapter/client_unix.go
@@ -0,0 +1,30 @@
+// +build linux darwin
+// +build remoteclient
+
+package adapter
+
+import (
+ "fmt"
+
+ "github.com/containers/libpod/cmd/podman/remoteclientconfig"
+ "github.com/pkg/errors"
+)
+
+// newBridgeConnection creates a bridge type endpoint with username, destination, and log-level
+func newBridgeConnection(formattedBridge string, remoteConn *remoteclientconfig.RemoteConnection, logLevel string) (*Endpoint, error) {
+ endpoint := Endpoint{
+ Type: BridgeConnection,
+ }
+
+ if len(formattedBridge) < 1 && remoteConn == nil {
+ return nil, errors.New("bridge connections must either be created by string or remoteconnection")
+ }
+ if len(formattedBridge) > 0 {
+ endpoint.Connection = formattedBridge
+ return &endpoint, nil
+ }
+ endpoint.Connection = fmt.Sprintf(
+ `ssh -T %s@%s -- /usr/bin/varlink -A \'/usr/bin/podman --log-level=%s varlink \\\$VARLINK_ADDRESS\' bridge`,
+ remoteConn.Username, remoteConn.Destination, logLevel)
+ return &endpoint, nil
+}
diff --git a/pkg/adapter/client_windows.go b/pkg/adapter/client_windows.go
new file mode 100644
index 000000000..088550667
--- /dev/null
+++ b/pkg/adapter/client_windows.go
@@ -0,0 +1,15 @@
+// +build remoteclient
+
+package adapter
+
+import (
+ "github.com/containers/libpod/cmd/podman/remoteclientconfig"
+ "github.com/containers/libpod/libpod"
+)
+
+func newBridgeConnection(formattedBridge string, remoteConn *remoteclientconfig.RemoteConnection, logLevel string) (*Endpoint, error) {
+ // TODO
+ // Unix and Windows appear to quote their ssh implementations differently therefore once we figure out what
+ // windows ssh is doing here, we can then get the format correct.
+ return nil, libpod.ErrNotImplemented
+}
diff --git a/pkg/adapter/containers.go b/pkg/adapter/containers.go
index ff7b6377a..29297fbd5 100644
--- a/pkg/adapter/containers.go
+++ b/pkg/adapter/containers.go
@@ -6,6 +6,7 @@ import (
"bufio"
"context"
"fmt"
+ "io"
"io/ioutil"
"os"
"path/filepath"
@@ -15,9 +16,12 @@ import (
"syscall"
"time"
+ "github.com/containers/buildah"
+ "github.com/containers/image/manifest"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/shared"
"github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/adapter/shortcuts"
"github.com/containers/libpod/pkg/systemdgen"
"github.com/containers/psgo"
@@ -522,7 +526,7 @@ func (r *LocalRuntime) Checkpoint(c *cliconfig.CheckpointValues, options libpod.
}
// Restore one or more containers
-func (r *LocalRuntime) Restore(c *cliconfig.RestoreValues, options libpod.ContainerCheckpointOptions) error {
+func (r *LocalRuntime) Restore(ctx context.Context, c *cliconfig.RestoreValues, options libpod.ContainerCheckpointOptions) error {
var (
containers []*libpod.Container
err, lastError error
@@ -534,7 +538,9 @@ func (r *LocalRuntime) Restore(c *cliconfig.RestoreValues, options libpod.Contai
return state == libpod.ContainerStateExited
})
- if c.All {
+ if c.Import != "" {
+ containers, err = crImportCheckpoint(ctx, r.Runtime, c.Import, c.Name)
+ } else if c.All {
containers, err = r.GetContainers(filterFuncs...)
} else {
containers, err = shortcuts.GetContainersByContext(false, c.Latest, c.InputArgs, r.Runtime)
@@ -1030,3 +1036,55 @@ func (r *LocalRuntime) GenerateSystemd(c *cliconfig.GenerateSystemdValues) (stri
func (r *LocalRuntime) GetNamespaces(container shared.PsContainerOutput) *shared.Namespace {
return shared.GetNamespaces(container.Pid)
}
+
+// Commit creates a local image from a container
+func (r *LocalRuntime) Commit(ctx context.Context, c *cliconfig.CommitValues, container, imageName string) (string, error) {
+ var (
+ writer io.Writer
+ mimeType string
+ )
+ switch c.Format {
+ case "oci":
+ mimeType = buildah.OCIv1ImageManifest
+ if c.Flag("message").Changed {
+ return "", errors.Errorf("messages are only compatible with the docker image format (-f docker)")
+ }
+ case "docker":
+ mimeType = manifest.DockerV2Schema2MediaType
+ default:
+ return "", errors.Errorf("unrecognized image format %q", c.Format)
+ }
+ if !c.Quiet {
+ writer = os.Stderr
+ }
+ ctr, err := r.Runtime.LookupContainer(container)
+ if err != nil {
+ return "", errors.Wrapf(err, "error looking up container %q", container)
+ }
+
+ rtc, err := r.Runtime.GetConfig()
+ if err != nil {
+ return "", err
+ }
+
+ sc := image.GetSystemContext(rtc.SignaturePolicyPath, "", false)
+ coptions := buildah.CommitOptions{
+ SignaturePolicyPath: rtc.SignaturePolicyPath,
+ ReportWriter: writer,
+ SystemContext: sc,
+ PreferredManifestType: mimeType,
+ }
+ options := libpod.ContainerCommitOptions{
+ CommitOptions: coptions,
+ Pause: c.Pause,
+ IncludeVolumes: c.IncludeVolumes,
+ Message: c.Message,
+ Changes: c.Change,
+ Author: c.Author,
+ }
+ newImage, err := ctr.Commit(ctx, imageName, options)
+ if err != nil {
+ return "", err
+ }
+ return newImage.ID(), nil
+}
diff --git a/pkg/adapter/containers_remote.go b/pkg/adapter/containers_remote.go
index ce4b96370..cf0b90b3a 100644
--- a/pkg/adapter/containers_remote.go
+++ b/pkg/adapter/containers_remote.go
@@ -663,6 +663,10 @@ func (r *LocalRuntime) Attach(ctx context.Context, c *cliconfig.AttachValues) er
// Checkpoint one or more containers
func (r *LocalRuntime) Checkpoint(c *cliconfig.CheckpointValues, options libpod.ContainerCheckpointOptions) error {
+ if c.Export != "" {
+ return errors.New("the remote client does not support exporting checkpoints")
+ }
+
var lastError error
ids, err := iopodman.GetContainersByContext().Call(r.Conn, c.All, c.Latest, c.InputArgs)
if err != nil {
@@ -698,7 +702,11 @@ func (r *LocalRuntime) Checkpoint(c *cliconfig.CheckpointValues, options libpod.
}
// Restore one or more containers
-func (r *LocalRuntime) Restore(c *cliconfig.RestoreValues, options libpod.ContainerCheckpointOptions) error {
+func (r *LocalRuntime) Restore(ctx context.Context, c *cliconfig.RestoreValues, options libpod.ContainerCheckpointOptions) error {
+ if c.Import != "" {
+ return errors.New("the remote client does not support importing checkpoints")
+ }
+
var lastError error
ids, err := iopodman.GetContainersByContext().Call(r.Conn, c.All, c.Latest, c.InputArgs)
if err != nil {
@@ -993,3 +1001,26 @@ func (r *LocalRuntime) GetNamespaces(container shared.PsContainerOutput) *shared
}
return &ns
}
+
+// Commit creates a local image from a container
+func (r *LocalRuntime) Commit(ctx context.Context, c *cliconfig.CommitValues, container, imageName string) (string, error) {
+ var iid string
+ reply, err := iopodman.Commit().Send(r.Conn, varlink.More, container, imageName, c.Change, c.Author, c.Message, c.Pause, c.Format)
+ if err != nil {
+ return "", err
+ }
+ for {
+ responses, flags, err := reply()
+ if err != nil {
+ return "", err
+ }
+ for _, line := range responses.Logs {
+ fmt.Fprintln(os.Stderr, line)
+ }
+ iid = responses.Id
+ if flags&varlink.Continues == 0 {
+ break
+ }
+ }
+ return iid, nil
+}
diff --git a/pkg/adapter/runtime_remote.go b/pkg/adapter/runtime_remote.go
index e0c0898bd..a1d358f68 100644
--- a/pkg/adapter/runtime_remote.go
+++ b/pkg/adapter/runtime_remote.go
@@ -20,6 +20,7 @@ import (
"github.com/containers/image/docker/reference"
"github.com/containers/image/types"
"github.com/containers/libpod/cmd/podman/cliconfig"
+ "github.com/containers/libpod/cmd/podman/remoteclientconfig"
"github.com/containers/libpod/cmd/podman/varlink"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/events"
@@ -40,6 +41,7 @@ type RemoteRuntime struct {
Conn *varlink.Connection
Remote bool
cmd cliconfig.MainFlags
+ config io.Reader
}
// LocalRuntime describes a typical libpod runtime
@@ -49,10 +51,35 @@ type LocalRuntime struct {
// GetRuntime returns a LocalRuntime struct with the actual runtime embedded in it
func GetRuntime(ctx context.Context, c *cliconfig.PodmanCommand) (*LocalRuntime, error) {
+ var (
+ customConfig bool
+ err error
+ f *os.File
+ )
runtime := RemoteRuntime{
Remote: true,
cmd: c.GlobalFlags,
}
+ configPath := remoteclientconfig.GetConfigFilePath()
+ if len(c.GlobalFlags.RemoteConfigFilePath) > 0 {
+ configPath = c.GlobalFlags.RemoteConfigFilePath
+ customConfig = true
+ }
+
+ f, err = os.Open(configPath)
+ if err != nil {
+ // If user does not explicitly provide a configuration file path and we cannot
+ // find a default, no error should occur.
+ if os.IsNotExist(err) && !customConfig {
+ logrus.Debugf("unable to load configuration file at %s", configPath)
+ runtime.config = nil
+ } else {
+ return nil, errors.Wrapf(err, "unable to load configuration file at %s", configPath)
+ }
+ } else {
+ // create the io reader for the remote client
+ runtime.config = bufio.NewReader(f)
+ }
conn, err := runtime.Connect()
if err != nil {
return nil, err
diff --git a/pkg/rootless/rootless_linux.c b/pkg/rootless/rootless_linux.c
index a2425c83e..eb62d55e9 100644
--- a/pkg/rootless/rootless_linux.c
+++ b/pkg/rootless/rootless_linux.c
@@ -489,6 +489,7 @@ reexec_userns_join (int userns, int mountns, char *pause_pid_file_path)
char **argv;
int pid;
char *cwd = getcwd (NULL, 0);
+ sigset_t sigset, oldsigset;
if (cwd == NULL)
{
@@ -522,6 +523,22 @@ reexec_userns_join (int userns, int mountns, char *pause_pid_file_path)
return pid;
}
+ if (sigfillset (&sigset) < 0)
+ {
+ fprintf (stderr, "cannot fill sigset: %s\n", strerror (errno));
+ _exit (EXIT_FAILURE);
+ }
+ if (sigdelset (&sigset, SIGCHLD) < 0)
+ {
+ fprintf (stderr, "cannot sigdelset(SIGCHLD): %s\n", strerror (errno));
+ _exit (EXIT_FAILURE);
+ }
+ if (sigprocmask (SIG_BLOCK, &sigset, &oldsigset) < 0)
+ {
+ fprintf (stderr, "cannot block signals: %s\n", strerror (errno));
+ _exit (EXIT_FAILURE);
+ }
+
setenv ("_CONTAINERS_USERNS_CONFIGURED", "init", 1);
setenv ("_CONTAINERS_ROOTLESS_UID", uid, 1);
setenv ("_CONTAINERS_ROOTLESS_GID", gid, 1);
@@ -570,6 +587,11 @@ reexec_userns_join (int userns, int mountns, char *pause_pid_file_path)
/* We ignore errors here as we didn't create the namespace anyway. */
create_pause_process (pause_pid_file_path, argv);
}
+ if (sigprocmask (SIG_SETMASK, &oldsigset, NULL) < 0)
+ {
+ fprintf (stderr, "cannot block signals: %s\n", strerror (errno));
+ _exit (EXIT_FAILURE);
+ }
execvp (argv[0], argv);
diff --git a/pkg/rootless/rootless_linux.go b/pkg/rootless/rootless_linux.go
index d302b1777..0cac50fc0 100644
--- a/pkg/rootless/rootless_linux.go
+++ b/pkg/rootless/rootless_linux.go
@@ -169,6 +169,9 @@ func getUserNSFirstChild(fd uintptr) (*os.File, error) {
for {
nextFd, err := getParentUserNs(fd)
if err != nil {
+ if err == syscall.ENOTTY {
+ return os.NewFile(fd, "userns child"), nil
+ }
return nil, errors.Wrapf(err, "cannot get parent user namespace")
}
diff --git a/pkg/varlinkapi/images.go b/pkg/varlinkapi/images.go
index fa1a0a109..1abc4f086 100644
--- a/pkg/varlinkapi/images.go
+++ b/pkg/varlinkapi/images.go
@@ -371,7 +371,6 @@ func (i *LibpodAPI) PushImage(call iopodman.VarlinkCall, name, tag string, compr
done = true
default:
if !call.WantsMore() {
- time.Sleep(1 * time.Second)
break
}
br := iopodman.MoreResponse{
@@ -495,6 +494,9 @@ func (i *LibpodAPI) DeleteUnusedImages(call iopodman.VarlinkCall) error {
// Commit ...
func (i *LibpodAPI) Commit(call iopodman.VarlinkCall, name, imageName string, changes []string, author, message string, pause bool, manifestType string) error {
+ var newImage *image.Image
+
+ output := bytes.NewBuffer([]byte{})
ctr, err := i.Runtime.LookupContainer(name)
if err != nil {
return call.ReplyContainerNotFound(name, err.Error())
@@ -515,7 +517,7 @@ func (i *LibpodAPI) Commit(call iopodman.VarlinkCall, name, imageName string, ch
}
coptions := buildah.CommitOptions{
SignaturePolicyPath: rtc.SignaturePolicyPath,
- ReportWriter: nil,
+ ReportWriter: output,
SystemContext: sc,
PreferredManifestType: mimeType,
}
@@ -527,11 +529,61 @@ func (i *LibpodAPI) Commit(call iopodman.VarlinkCall, name, imageName string, ch
Author: author,
}
- newImage, err := ctr.Commit(getContext(), imageName, options)
- if err != nil {
- return call.ReplyErrorOccurred(err.Error())
+ if call.WantsMore() {
+ call.Continues = true
}
- return call.ReplyCommit(newImage.ID())
+
+ c := make(chan error)
+
+ go func() {
+ newImage, err = ctr.Commit(getContext(), imageName, options)
+ if err != nil {
+ c <- err
+ }
+ c <- nil
+ close(c)
+ }()
+
+ var log []string
+ done := false
+ for {
+ line, err := output.ReadString('\n')
+ if err == nil {
+ log = append(log, line)
+ continue
+ } else if err == io.EOF {
+ select {
+ case err := <-c:
+ if err != nil {
+ logrus.Errorf("reading of output during commit failed for %s", name)
+ return call.ReplyErrorOccurred(err.Error())
+ }
+ done = true
+ default:
+ if !call.WantsMore() {
+ break
+ }
+ br := iopodman.MoreResponse{
+ Logs: log,
+ }
+ call.ReplyCommit(br)
+ log = []string{}
+ }
+ } else {
+ return call.ReplyErrorOccurred(err.Error())
+ }
+ if done {
+ break
+ }
+ }
+ call.Continues = false
+
+ br := iopodman.MoreResponse{
+ Logs: log,
+ Id: newImage.ID(),
+ }
+
+ return call.ReplyCommit(br)
}
// ImportImage imports an image from a tarball to the image store
@@ -633,7 +685,6 @@ func (i *LibpodAPI) PullImage(call iopodman.VarlinkCall, name string) error {
done = true
default:
if !call.WantsMore() {
- time.Sleep(1 * time.Second)
break
}
br := iopodman.MoreResponse{
@@ -764,7 +815,6 @@ func (i *LibpodAPI) ImageSave(call iopodman.VarlinkCall, options iopodman.ImageS
done = true
default:
if !call.WantsMore() {
- time.Sleep(1 * time.Second)
break
}
br := iopodman.MoreResponse{
@@ -844,7 +894,6 @@ func (i *LibpodAPI) LoadImage(call iopodman.VarlinkCall, name, inputFile string,
done = true
default:
if !call.WantsMore() {
- time.Sleep(1 * time.Second)
break
}
br := iopodman.MoreResponse{
diff --git a/pkg/varlinkapi/virtwriter/virtwriter.go b/pkg/varlinkapi/virtwriter/virtwriter.go
index 3adaf6e17..e747984c7 100644
--- a/pkg/varlinkapi/virtwriter/virtwriter.go
+++ b/pkg/varlinkapi/virtwriter/virtwriter.go
@@ -91,65 +91,65 @@ func (v VirtWriteCloser) Write(input []byte) (int, error) {
// Reader decodes the content that comes over the wire and directs it to the proper destination.
func Reader(r *bufio.Reader, output, errput *os.File, input *io.PipeWriter, resize chan remotecommand.TerminalSize) error {
- var saveb []byte
- var eom int
+ var messageSize int64
+ headerBytes := make([]byte, 8)
+
for {
- readb := make([]byte, 32*1024)
- n, err := r.Read(readb)
- // TODO, later may be worth checking in len of the read is 0
+ n, err := io.ReadFull(r, headerBytes)
if err != nil {
return err
}
- b := append(saveb, readb[0:n]...)
- // no sense in reading less than the header len
- for len(b) > 7 {
- eom = int(binary.BigEndian.Uint32(b[4:8])) + 8
- // The message and header are togther
- if len(b) >= eom {
- out := append([]byte{}, b[8:eom]...)
-
- switch IntToSocketDest(int(b[0])) {
- case ToStdout:
- n, err := output.Write(out)
- if err != nil {
- return err
- }
- if n < len(out) {
- return errors.New("short write error occurred on stdout")
- }
- case ToStderr:
- n, err := errput.Write(out)
- if err != nil {
- return err
- }
- if n < len(out) {
- return errors.New("short write error occurred on stderr")
- }
- case ToStdin:
- n, err := input.Write(out)
- if err != nil {
- return err
- }
- if n < len(out) {
- return errors.New("short write error occurred on stdin")
- }
- case TerminalResize:
- // Resize events come over in bytes, need to be reserialized
- resizeEvent := remotecommand.TerminalSize{}
- if err := json.Unmarshal(out, &resizeEvent); err != nil {
- return err
- }
- resize <- resizeEvent
- case Quit:
- return nil
+ if n < 8 {
+ return errors.New("short read and no full header read")
+ }
+
+ messageSize = int64(binary.BigEndian.Uint32(headerBytes[4:8]))
+
+ switch IntToSocketDest(int(headerBytes[0])) {
+ case ToStdout:
+ _, err := io.CopyN(output, r, messageSize)
+ if err != nil {
+ return err
+ }
+ case ToStderr:
+ _, err := io.CopyN(errput, r, messageSize)
+ if err != nil {
+ return err
+ }
+ case ToStdin:
+ _, err := io.CopyN(input, r, messageSize)
+ if err != nil {
+ return err
+ }
+ case TerminalResize:
+ out := make([]byte, messageSize)
+ if messageSize > 0 {
+ _, err = io.ReadFull(r, out)
+
+ if err != nil {
+ return err
}
- b = b[eom:]
- } else {
- // We do not have the header and full message, need to slurp again
- saveb = b
- break
}
+ // Resize events come over in bytes, need to be reserialized
+ resizeEvent := remotecommand.TerminalSize{}
+ if err := json.Unmarshal(out, &resizeEvent); err != nil {
+ return err
+ }
+ resize <- resizeEvent
+ case Quit:
+ out := make([]byte, messageSize)
+ if messageSize > 0 {
+ _, err = io.ReadFull(r, out)
+
+ if err != nil {
+ return err
+ }
+ }
+ return nil
+
+ default:
+ // Something really went wrong
+ return errors.New("Unknown multiplex destination")
}
}
- return nil
}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-16 16:24:22 +0000