Initial commit

This commit is contained in:
Ria Bhatia
2017-12-04 13:32:57 -06:00
committed by Erik St. Martin
commit 0075e5b0f3
9056 changed files with 2523100 additions and 0 deletions

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package container
import (
"io"
"time"
"github.com/hyperhq/hypercli/daemon"
"github.com/hyperhq/hypercli/daemon/exec"
"github.com/hyperhq/hypercli/pkg/archive"
"github.com/hyperhq/hypercli/pkg/version"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/container"
)
// execBackend includes functions to implement to provide exec functionality.
type execBackend interface {
ContainerExecCreate(config *types.ExecConfig) (string, error)
ContainerExecInspect(id string) (*exec.Config, error)
ContainerExecResize(name string, height, width int) error
ContainerExecStart(name string, stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) error
ExecExists(name string) (bool, error)
}
// copyBackend includes functions to implement to provide container copy functionality.
type copyBackend interface {
ContainerArchivePath(name string, path string) (content io.ReadCloser, stat *types.ContainerPathStat, err error)
ContainerCopy(name string, res string) (io.ReadCloser, error)
ContainerExport(name string, out io.Writer) error
ContainerExtractToDir(name, path string, noOverwriteDirNonDir bool, content io.Reader) error
ContainerStatPath(name string, path string) (stat *types.ContainerPathStat, err error)
}
// stateBackend includes functions to implement to provide container state lifecycle functionality.
type stateBackend interface {
ContainerCreate(types.ContainerCreateConfig) (types.ContainerCreateResponse, error)
ContainerKill(name string, sig uint64) error
ContainerPause(name string) error
ContainerRename(oldName, newName string) error
ContainerResize(name string, height, width int) error
ContainerRestart(name string, seconds int) error
ContainerRm(name string, config *types.ContainerRmConfig) error
ContainerStart(name string, hostConfig *container.HostConfig) error
ContainerStop(name string, seconds int) error
ContainerUnpause(name string) error
ContainerUpdate(name string, hostConfig *container.HostConfig) ([]string, error)
ContainerWait(name string, timeout time.Duration) (int, error)
Exists(id string) bool
}
// monitorBackend includes functions to implement to provide containers monitoring functionality.
type monitorBackend interface {
ContainerChanges(name string) ([]archive.Change, error)
ContainerInspect(name string, size bool, version version.Version) (interface{}, error)
ContainerLogs(name string, config *daemon.ContainerLogsConfig) error
ContainerStats(name string, config *daemon.ContainerStatsConfig) error
ContainerTop(name string, psArgs string) (*types.ContainerProcessList, error)
Containers(config *daemon.ContainersConfig) ([]*types.Container, error)
}
// attachBackend includes function to implement to provide container attaching functionality.
type attachBackend interface {
ContainerAttachWithLogs(name string, c *daemon.ContainerAttachWithLogsConfig) error
ContainerWsAttachWithLogs(name string, c *daemon.ContainerWsAttachWithLogsConfig) error
}
// Backend is all the methods that need to be implemented to provide container specific functionality.
type Backend interface {
execBackend
copyBackend
stateBackend
monitorBackend
attachBackend
}

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package container
import (
"github.com/hyperhq/hypercli/api/server/router"
"github.com/hyperhq/hypercli/api/server/router/local"
)
// containerRouter is a router to talk with the container controller
type containerRouter struct {
backend Backend
routes []router.Route
}
// NewRouter initializes a new container router
func NewRouter(b Backend) router.Router {
r := &containerRouter{
backend: b,
}
r.initRoutes()
return r
}
// Routes returns the available routers to the container controller
func (r *containerRouter) Routes() []router.Route {
return r.routes
}
// initRoutes initializes the routes in container router
func (r *containerRouter) initRoutes() {
r.routes = []router.Route{
// HEAD
local.NewHeadRoute("/containers/{name:.*}/archive", r.headContainersArchive),
// GET
local.NewGetRoute("/containers/json", r.getContainersJSON),
local.NewGetRoute("/containers/{name:.*}/export", r.getContainersExport),
local.NewGetRoute("/containers/{name:.*}/changes", r.getContainersChanges),
local.NewGetRoute("/containers/{name:.*}/json", r.getContainersByName),
local.NewGetRoute("/containers/{name:.*}/top", r.getContainersTop),
local.NewGetRoute("/containers/{name:.*}/logs", r.getContainersLogs),
local.NewGetRoute("/containers/{name:.*}/stats", r.getContainersStats),
local.NewGetRoute("/containers/{name:.*}/attach/ws", r.wsContainersAttach),
local.NewGetRoute("/exec/{id:.*}/json", r.getExecByID),
local.NewGetRoute("/containers/{name:.*}/archive", r.getContainersArchive),
// POST
local.NewPostRoute("/containers/create", r.postContainersCreate),
local.NewPostRoute("/containers/{name:.*}/kill", r.postContainersKill),
local.NewPostRoute("/containers/{name:.*}/pause", r.postContainersPause),
local.NewPostRoute("/containers/{name:.*}/unpause", r.postContainersUnpause),
local.NewPostRoute("/containers/{name:.*}/restart", r.postContainersRestart),
local.NewPostRoute("/containers/{name:.*}/start", r.postContainersStart),
local.NewPostRoute("/containers/{name:.*}/stop", r.postContainersStop),
local.NewPostRoute("/containers/{name:.*}/wait", r.postContainersWait),
local.NewPostRoute("/containers/{name:.*}/resize", r.postContainersResize),
local.NewPostRoute("/containers/{name:.*}/attach", r.postContainersAttach),
local.NewPostRoute("/containers/{name:.*}/copy", r.postContainersCopy),
local.NewPostRoute("/containers/{name:.*}/exec", r.postContainerExecCreate),
local.NewPostRoute("/exec/{name:.*}/start", r.postContainerExecStart),
local.NewPostRoute("/exec/{name:.*}/resize", r.postContainerExecResize),
local.NewPostRoute("/containers/{name:.*}/rename", r.postContainerRename),
local.NewPostRoute("/containers/{name:.*}/update", r.postContainerUpdate),
// PUT
local.NewPutRoute("/containers/{name:.*}/archive", r.putContainersArchive),
// DELETE
local.NewDeleteRoute("/containers/{name:.*}", r.deleteContainers),
}
}

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package container
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"syscall"
"time"
"github.com/Sirupsen/logrus"
"github.com/docker/distribution/registry/api/errcode"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/container"
timetypes "github.com/docker/engine-api/types/time"
"github.com/hyperhq/hypercli/api/server/httputils"
"github.com/hyperhq/hypercli/daemon"
derr "github.com/hyperhq/hypercli/errors"
"github.com/hyperhq/hypercli/pkg/ioutils"
"github.com/hyperhq/hypercli/pkg/signal"
"github.com/hyperhq/hypercli/pkg/term"
"github.com/hyperhq/hypercli/runconfig"
"github.com/hyperhq/hypercli/utils"
"golang.org/x/net/context"
"golang.org/x/net/websocket"
)
func (s *containerRouter) getContainersJSON(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
config := &daemon.ContainersConfig{
All: httputils.BoolValue(r, "all"),
Size: httputils.BoolValue(r, "size"),
Since: r.Form.Get("since"),
Before: r.Form.Get("before"),
Filters: r.Form.Get("filters"),
}
if tmpLimit := r.Form.Get("limit"); tmpLimit != "" {
limit, err := strconv.Atoi(tmpLimit)
if err != nil {
return err
}
config.Limit = limit
}
containers, err := s.backend.Containers(config)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, containers)
}
func (s *containerRouter) getContainersStats(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
stream := httputils.BoolValueOrDefault(r, "stream", true)
var out io.Writer
if !stream {
w.Header().Set("Content-Type", "application/json")
out = w
} else {
wf := ioutils.NewWriteFlusher(w)
out = wf
defer wf.Close()
}
var closeNotifier <-chan bool
if notifier, ok := w.(http.CloseNotifier); ok {
closeNotifier = notifier.CloseNotify()
}
config := &daemon.ContainerStatsConfig{
Stream: stream,
OutStream: out,
Stop: closeNotifier,
Version: httputils.VersionFromContext(ctx),
}
return s.backend.ContainerStats(vars["name"], config)
}
func (s *containerRouter) getContainersLogs(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
// Args are validated before the stream starts because when it starts we're
// sending HTTP 200 by writing an empty chunk of data to tell the client that
// daemon is going to stream. By sending this initial HTTP 200 we can't report
// any error after the stream starts (i.e. container not found, wrong parameters)
// with the appropriate status code.
stdout, stderr := httputils.BoolValue(r, "stdout"), httputils.BoolValue(r, "stderr")
if !(stdout || stderr) {
return fmt.Errorf("Bad parameters: you must choose at least one stream")
}
var since time.Time
if r.Form.Get("since") != "" {
s, n, err := timetypes.ParseTimestamps(r.Form.Get("since"), 0)
if err != nil {
return err
}
since = time.Unix(s, n)
}
var closeNotifier <-chan bool
if notifier, ok := w.(http.CloseNotifier); ok {
closeNotifier = notifier.CloseNotify()
}
containerName := vars["name"]
if !s.backend.Exists(containerName) {
return derr.ErrorCodeNoSuchContainer.WithArgs(containerName)
}
// write an empty chunk of data (this is to ensure that the
// HTTP Response is sent immediately, even if the container has
// not yet produced any data)
w.WriteHeader(http.StatusOK)
if flusher, ok := w.(http.Flusher); ok {
flusher.Flush()
}
output := ioutils.NewWriteFlusher(w)
defer output.Close()
logsConfig := &daemon.ContainerLogsConfig{
Follow: httputils.BoolValue(r, "follow"),
Timestamps: httputils.BoolValue(r, "timestamps"),
Since: since,
Tail: r.Form.Get("tail"),
UseStdout: stdout,
UseStderr: stderr,
OutStream: output,
Stop: closeNotifier,
}
if err := s.backend.ContainerLogs(containerName, logsConfig); err != nil {
// The client may be expecting all of the data we're sending to
// be multiplexed, so send it through OutStream, which will
// have been set up to handle that if needed.
fmt.Fprintf(logsConfig.OutStream, "Error running logs job: %s\n", utils.GetErrorMessage(err))
}
return nil
}
func (s *containerRouter) getContainersExport(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
return s.backend.ContainerExport(vars["name"], w)
}
func (s *containerRouter) postContainersStart(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
// If contentLength is -1, we can assumed chunked encoding
// or more technically that the length is unknown
// https://golang.org/src/pkg/net/http/request.go#L139
// net/http otherwise seems to swallow any headers related to chunked encoding
// including r.TransferEncoding
// allow a nil body for backwards compatibility
var hostConfig *container.HostConfig
if r.Body != nil && (r.ContentLength > 0 || r.ContentLength == -1) {
if err := httputils.CheckForJSON(r); err != nil {
return err
}
c, err := runconfig.DecodeHostConfig(r.Body)
if err != nil {
return err
}
hostConfig = c
}
if err := s.backend.ContainerStart(vars["name"], hostConfig); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersStop(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
seconds, _ := strconv.Atoi(r.Form.Get("t"))
if err := s.backend.ContainerStop(vars["name"], seconds); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersKill(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
var sig syscall.Signal
name := vars["name"]
// If we have a signal, look at it. Otherwise, do nothing
if sigStr := r.Form.Get("signal"); sigStr != "" {
var err error
if sig, err = signal.ParseSignal(sigStr); err != nil {
return err
}
}
if err := s.backend.ContainerKill(name, uint64(sig)); err != nil {
theErr, isDerr := err.(errcode.ErrorCoder)
isStopped := isDerr && theErr.ErrorCode() == derr.ErrorCodeNotRunning
// Return error that's not caused because the container is stopped.
// Return error if the container is not running and the api is >= 1.20
// to keep backwards compatibility.
version := httputils.VersionFromContext(ctx)
if version.GreaterThanOrEqualTo("1.20") || !isStopped {
return fmt.Errorf("Cannot kill container %s: %v", name, utils.GetErrorMessage(err))
}
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersRestart(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
timeout, _ := strconv.Atoi(r.Form.Get("t"))
if err := s.backend.ContainerRestart(vars["name"], timeout); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersPause(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := s.backend.ContainerPause(vars["name"]); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersUnpause(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := s.backend.ContainerUnpause(vars["name"]); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersWait(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
status, err := s.backend.ContainerWait(vars["name"], -1*time.Second)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, &types.ContainerWaitResponse{
StatusCode: status,
})
}
func (s *containerRouter) getContainersChanges(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
changes, err := s.backend.ContainerChanges(vars["name"])
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, changes)
}
func (s *containerRouter) getContainersTop(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
procList, err := s.backend.ContainerTop(vars["name"], r.Form.Get("ps_args"))
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, procList)
}
func (s *containerRouter) postContainerRename(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
name := vars["name"]
newName := r.Form.Get("name")
if err := s.backend.ContainerRename(name, newName); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainerUpdate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := httputils.CheckForJSON(r); err != nil {
return err
}
var updateConfig container.UpdateConfig
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&updateConfig); err != nil {
return err
}
hostConfig := &container.HostConfig{
Resources: updateConfig.Resources,
}
name := vars["name"]
warnings, err := s.backend.ContainerUpdate(name, hostConfig)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, &types.ContainerUpdateResponse{
Warnings: warnings,
})
}
func (s *containerRouter) postContainersCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := httputils.CheckForJSON(r); err != nil {
return err
}
name := r.Form.Get("name")
config, hostConfig, networkingConfig, err := runconfig.DecodeContainerConfig(r.Body)
if err != nil {
return err
}
version := httputils.VersionFromContext(ctx)
adjustCPUShares := version.LessThan("1.19")
ccr, err := s.backend.ContainerCreate(types.ContainerCreateConfig{
Name: name,
Config: config,
HostConfig: hostConfig,
NetworkingConfig: networkingConfig,
AdjustCPUShares: adjustCPUShares,
})
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusCreated, ccr)
}
func (s *containerRouter) deleteContainers(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
name := vars["name"]
config := &types.ContainerRmConfig{
ForceRemove: httputils.BoolValue(r, "force"),
RemoveVolume: httputils.BoolValue(r, "v"),
RemoveLink: httputils.BoolValue(r, "link"),
}
if err := s.backend.ContainerRm(name, config); err != nil {
// Force a 404 for the empty string
if strings.Contains(strings.ToLower(err.Error()), "prefix can't be empty") {
return fmt.Errorf("no such container: \"\"")
}
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *containerRouter) postContainersResize(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
height, err := strconv.Atoi(r.Form.Get("h"))
if err != nil {
return err
}
width, err := strconv.Atoi(r.Form.Get("w"))
if err != nil {
return err
}
return s.backend.ContainerResize(vars["name"], height, width)
}
func (s *containerRouter) postContainersAttach(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
err := httputils.ParseForm(r)
if err != nil {
return err
}
containerName := vars["name"]
_, upgrade := r.Header["Upgrade"]
keys := []byte{}
detachKeys := r.FormValue("detachKeys")
if detachKeys != "" {
keys, err = term.ToBytes(detachKeys)
if err != nil {
logrus.Warnf("Invalid escape keys provided (%s) using default : ctrl-p ctrl-q", detachKeys)
}
}
attachWithLogsConfig := &daemon.ContainerAttachWithLogsConfig{
Hijacker: w.(http.Hijacker),
Upgrade: upgrade,
UseStdin: httputils.BoolValue(r, "stdin"),
UseStdout: httputils.BoolValue(r, "stdout"),
UseStderr: httputils.BoolValue(r, "stderr"),
Logs: httputils.BoolValue(r, "logs"),
Stream: httputils.BoolValue(r, "stream"),
DetachKeys: keys,
}
return s.backend.ContainerAttachWithLogs(containerName, attachWithLogsConfig)
}
func (s *containerRouter) wsContainersAttach(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
containerName := vars["name"]
if !s.backend.Exists(containerName) {
return derr.ErrorCodeNoSuchContainer.WithArgs(containerName)
}
var keys []byte
var err error
detachKeys := r.FormValue("detachKeys")
if detachKeys != "" {
keys, err = term.ToBytes(detachKeys)
if err != nil {
logrus.Warnf("Invalid escape keys provided (%s) using default : ctrl-p ctrl-q", detachKeys)
}
}
h := websocket.Handler(func(ws *websocket.Conn) {
defer ws.Close()
wsAttachWithLogsConfig := &daemon.ContainerWsAttachWithLogsConfig{
InStream: ws,
OutStream: ws,
ErrStream: ws,
Logs: httputils.BoolValue(r, "logs"),
Stream: httputils.BoolValue(r, "stream"),
DetachKeys: keys,
}
if err := s.backend.ContainerWsAttachWithLogs(containerName, wsAttachWithLogsConfig); err != nil {
logrus.Errorf("Error attaching websocket: %s", utils.GetErrorMessage(err))
}
})
ws := websocket.Server{Handler: h, Handshake: nil}
ws.ServeHTTP(w, r)
return nil
}

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package container
import (
"encoding/base64"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"strings"
"github.com/hyperhq/hypercli/api/server/httputils"
"github.com/docker/engine-api/types"
"golang.org/x/net/context"
)
// postContainersCopy is deprecated in favor of getContainersArchive.
func (s *containerRouter) postContainersCopy(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.CheckForJSON(r); err != nil {
return err
}
cfg := types.CopyConfig{}
if err := json.NewDecoder(r.Body).Decode(&cfg); err != nil {
return err
}
if cfg.Resource == "" {
return fmt.Errorf("Path cannot be empty")
}
data, err := s.backend.ContainerCopy(vars["name"], cfg.Resource)
if err != nil {
if strings.Contains(strings.ToLower(err.Error()), "no such container") {
w.WriteHeader(http.StatusNotFound)
return nil
}
if os.IsNotExist(err) {
return fmt.Errorf("Could not find the file %s in container %s", cfg.Resource, vars["name"])
}
return err
}
defer data.Close()
w.Header().Set("Content-Type", "application/x-tar")
if _, err := io.Copy(w, data); err != nil {
return err
}
return nil
}
// // Encode the stat to JSON, base64 encode, and place in a header.
func setContainerPathStatHeader(stat *types.ContainerPathStat, header http.Header) error {
statJSON, err := json.Marshal(stat)
if err != nil {
return err
}
header.Set(
"X-Docker-Container-Path-Stat",
base64.StdEncoding.EncodeToString(statJSON),
)
return nil
}
func (s *containerRouter) headContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
v, err := httputils.ArchiveFormValues(r, vars)
if err != nil {
return err
}
stat, err := s.backend.ContainerStatPath(v.Name, v.Path)
if err != nil {
return err
}
return setContainerPathStatHeader(stat, w.Header())
}
func (s *containerRouter) getContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
v, err := httputils.ArchiveFormValues(r, vars)
if err != nil {
return err
}
tarArchive, stat, err := s.backend.ContainerArchivePath(v.Name, v.Path)
if err != nil {
return err
}
defer tarArchive.Close()
if err := setContainerPathStatHeader(stat, w.Header()); err != nil {
return err
}
w.Header().Set("Content-Type", "application/x-tar")
_, err = io.Copy(w, tarArchive)
return err
}
func (s *containerRouter) putContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
v, err := httputils.ArchiveFormValues(r, vars)
if err != nil {
return err
}
noOverwriteDirNonDir := httputils.BoolValue(r, "noOverwriteDirNonDir")
return s.backend.ContainerExtractToDir(v.Name, v.Path, noOverwriteDirNonDir, r.Body)
}

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package container
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"github.com/Sirupsen/logrus"
"github.com/hyperhq/hypercli/api/server/httputils"
"github.com/hyperhq/hypercli/pkg/stdcopy"
"github.com/hyperhq/hypercli/utils"
"github.com/docker/engine-api/types"
"golang.org/x/net/context"
)
func (s *containerRouter) getExecByID(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
eConfig, err := s.backend.ContainerExecInspect(vars["id"])
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, eConfig)
}
func (s *containerRouter) postContainerExecCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := httputils.CheckForJSON(r); err != nil {
return err
}
name := vars["name"]
execConfig := &types.ExecConfig{}
if err := json.NewDecoder(r.Body).Decode(execConfig); err != nil {
return err
}
execConfig.Container = name
if len(execConfig.Cmd) == 0 {
return fmt.Errorf("No exec command specified")
}
// Register an instance of Exec in container.
id, err := s.backend.ContainerExecCreate(execConfig)
if err != nil {
logrus.Errorf("Error setting up exec command in container %s: %s", name, utils.GetErrorMessage(err))
return err
}
return httputils.WriteJSON(w, http.StatusCreated, &types.ContainerExecCreateResponse{
ID: id,
})
}
// TODO(vishh): Refactor the code to avoid having to specify stream config as part of both create and start.
func (s *containerRouter) postContainerExecStart(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
version := httputils.VersionFromContext(ctx)
if version.GreaterThan("1.21") {
if err := httputils.CheckForJSON(r); err != nil {
return err
}
}
var (
execName = vars["name"]
stdin, inStream io.ReadCloser
stdout, stderr, outStream io.Writer
)
execStartCheck := &types.ExecStartCheck{}
if err := json.NewDecoder(r.Body).Decode(execStartCheck); err != nil {
return err
}
if exists, err := s.backend.ExecExists(execName); !exists {
return err
}
if !execStartCheck.Detach {
var err error
// Setting up the streaming http interface.
inStream, outStream, err = httputils.HijackConnection(w)
if err != nil {
return err
}
defer httputils.CloseStreams(inStream, outStream)
if _, ok := r.Header["Upgrade"]; ok {
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
} else {
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
}
stdin = inStream
stdout = outStream
if !execStartCheck.Tty {
stderr = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
stdout = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
}
} else {
outStream = w
}
// Now run the user process in container.
if err := s.backend.ContainerExecStart(execName, stdin, stdout, stderr); err != nil {
if execStartCheck.Detach {
return err
}
logrus.Errorf("Error running exec in container: %v\n", utils.GetErrorMessage(err))
}
return nil
}
func (s *containerRouter) postContainerExecResize(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
height, err := strconv.Atoi(r.Form.Get("h"))
if err != nil {
return err
}
width, err := strconv.Atoi(r.Form.Get("w"))
if err != nil {
return err
}
return s.backend.ContainerExecResize(vars["name"], height, width)
}

View File

@@ -0,0 +1,21 @@
package container
import (
"net/http"
"github.com/hyperhq/hypercli/api/server/httputils"
"golang.org/x/net/context"
)
// getContainersByName inspects containers configuration and serializes it as json.
func (s *containerRouter) getContainersByName(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
displaySize := httputils.BoolValue(r, "size")
version := httputils.VersionFromContext(ctx)
json, err := s.backend.ContainerInspect(vars["name"], displaySize, version)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, json)
}