2016-03-04 11:29:24 +03:00
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package main
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import (
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2016-06-14 05:54:20 +03:00
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"bytes"
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2016-03-04 11:29:24 +03:00
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"os/exec"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/docker/docker/opts"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/docker/docker/pkg/ioutils"
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"github.com/docker/docker/pkg/tlsconfig"
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"github.com/docker/go-connections/sockets"
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"github.com/go-check/check"
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)
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2016-07-28 17:19:09 +03:00
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var daemonSockRoot = filepath.Join(os.TempDir(), "docker-integration")
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2016-03-04 11:29:24 +03:00
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// Daemon represents a Docker daemon for the testing framework.
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type Daemon struct {
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GlobalFlags []string
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id string
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c *check.C
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logFile *os.File
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folder string
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root string
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stdin io.WriteCloser
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stdout, stderr io.ReadCloser
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cmd *exec.Cmd
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storageDriver string
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wait chan error
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userlandProxy bool
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useDefaultHost bool
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useDefaultTLSHost bool
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}
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type clientConfig struct {
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transport *http.Transport
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scheme string
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addr string
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}
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// NewDaemon returns a Daemon instance to be used for testing.
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// This will create a directory such as d123456789 in the folder specified by $DEST.
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// The daemon will not automatically start.
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func NewDaemon(c *check.C) *Daemon {
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dest := os.Getenv("DEST")
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c.Assert(dest, check.Not(check.Equals), "", check.Commentf("Please set the DEST environment variable"))
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2016-07-28 17:19:09 +03:00
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err := os.MkdirAll(daemonSockRoot, 0700)
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c.Assert(err, checker.IsNil, check.Commentf("could not create daemon socket root"))
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2016-03-04 11:29:24 +03:00
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id := fmt.Sprintf("d%d", time.Now().UnixNano()%100000000)
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dir := filepath.Join(dest, id)
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daemonFolder, err := filepath.Abs(dir)
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c.Assert(err, check.IsNil, check.Commentf("Could not make %q an absolute path", dir))
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daemonRoot := filepath.Join(daemonFolder, "root")
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c.Assert(os.MkdirAll(daemonRoot, 0755), check.IsNil, check.Commentf("Could not create daemon root %q", dir))
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userlandProxy := true
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if env := os.Getenv("DOCKER_USERLANDPROXY"); env != "" {
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if val, err := strconv.ParseBool(env); err != nil {
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userlandProxy = val
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}
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}
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return &Daemon{
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id: id,
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c: c,
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folder: daemonFolder,
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root: daemonRoot,
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storageDriver: os.Getenv("DOCKER_GRAPHDRIVER"),
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userlandProxy: userlandProxy,
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}
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}
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func (d *Daemon) getClientConfig() (*clientConfig, error) {
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var (
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transport *http.Transport
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scheme string
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addr string
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proto string
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)
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if d.useDefaultTLSHost {
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option := &tlsconfig.Options{
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CAFile: "fixtures/https/ca.pem",
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CertFile: "fixtures/https/client-cert.pem",
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KeyFile: "fixtures/https/client-key.pem",
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}
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tlsConfig, err := tlsconfig.Client(*option)
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if err != nil {
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return nil, err
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}
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transport = &http.Transport{
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TLSClientConfig: tlsConfig,
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}
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addr = fmt.Sprintf("%s:%d", opts.DefaultHTTPHost, opts.DefaultTLSHTTPPort)
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scheme = "https"
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proto = "tcp"
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} else if d.useDefaultHost {
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addr = opts.DefaultUnixSocket
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proto = "unix"
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scheme = "http"
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transport = &http.Transport{}
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} else {
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2016-07-28 17:19:09 +03:00
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addr = d.sockPath()
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2016-03-04 11:29:24 +03:00
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proto = "unix"
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scheme = "http"
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transport = &http.Transport{}
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}
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d.c.Assert(sockets.ConfigureTransport(transport, proto, addr), check.IsNil)
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return &clientConfig{
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transport: transport,
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scheme: scheme,
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addr: addr,
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}, nil
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}
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// Start will start the daemon and return once it is ready to receive requests.
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// You can specify additional daemon flags.
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func (d *Daemon) Start(args ...string) error {
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logFile, err := os.OpenFile(filepath.Join(d.folder, "docker.log"), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0600)
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d.c.Assert(err, check.IsNil, check.Commentf("[%s] Could not create %s/docker.log", d.id, d.folder))
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return d.StartWithLogFile(logFile, args...)
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}
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// StartWithLogFile will start the daemon and attach its streams to a given file.
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func (d *Daemon) StartWithLogFile(out *os.File, providedArgs ...string) error {
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2016-05-26 14:14:35 +03:00
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dockerdBinary, err := exec.LookPath(dockerdBinary)
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2016-03-04 11:29:24 +03:00
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d.c.Assert(err, check.IsNil, check.Commentf("[%s] could not find docker binary in $PATH", d.id))
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args := append(d.GlobalFlags,
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2016-03-23 03:55:47 +03:00
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"--containerd", "/var/run/docker/libcontainerd/docker-containerd.sock",
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2016-03-04 11:29:24 +03:00
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"--graph", d.root,
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2016-03-29 03:33:09 +03:00
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"--exec-root", filepath.Join(d.folder, "exec-root"),
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2016-03-04 11:29:24 +03:00
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"--pidfile", fmt.Sprintf("%s/docker.pid", d.folder),
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fmt.Sprintf("--userland-proxy=%t", d.userlandProxy),
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)
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if !(d.useDefaultHost || d.useDefaultTLSHost) {
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args = append(args, []string{"--host", d.sock()}...)
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}
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if root := os.Getenv("DOCKER_REMAP_ROOT"); root != "" {
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args = append(args, []string{"--userns-remap", root}...)
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}
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// If we don't explicitly set the log-level or debug flag(-D) then
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// turn on debug mode
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foundLog := false
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foundSd := false
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for _, a := range providedArgs {
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if strings.Contains(a, "--log-level") || strings.Contains(a, "-D") || strings.Contains(a, "--debug") {
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foundLog = true
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}
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if strings.Contains(a, "--storage-driver") {
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foundSd = true
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}
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}
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if !foundLog {
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args = append(args, "--debug")
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}
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if d.storageDriver != "" && !foundSd {
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args = append(args, "--storage-driver", d.storageDriver)
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}
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args = append(args, providedArgs...)
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2016-05-26 14:14:35 +03:00
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d.cmd = exec.Command(dockerdBinary, args...)
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2016-06-21 03:44:45 +03:00
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d.cmd.Env = append(os.Environ(), "DOCKER_SERVICE_PREFER_OFFLINE_IMAGE=1")
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2016-03-04 11:29:24 +03:00
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d.cmd.Stdout = out
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d.cmd.Stderr = out
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d.logFile = out
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if err := d.cmd.Start(); err != nil {
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return fmt.Errorf("[%s] could not start daemon container: %v", d.id, err)
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}
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wait := make(chan error)
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go func() {
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wait <- d.cmd.Wait()
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d.c.Logf("[%s] exiting daemon", d.id)
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close(wait)
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}()
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d.wait = wait
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tick := time.Tick(500 * time.Millisecond)
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// make sure daemon is ready to receive requests
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startTime := time.Now().Unix()
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for {
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d.c.Logf("[%s] waiting for daemon to start", d.id)
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if time.Now().Unix()-startTime > 5 {
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// After 5 seconds, give up
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return fmt.Errorf("[%s] Daemon exited and never started", d.id)
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}
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select {
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case <-time.After(2 * time.Second):
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return fmt.Errorf("[%s] timeout: daemon does not respond", d.id)
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case <-tick:
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clientConfig, err := d.getClientConfig()
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if err != nil {
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return err
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}
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client := &http.Client{
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Transport: clientConfig.transport,
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}
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req, err := http.NewRequest("GET", "/_ping", nil)
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d.c.Assert(err, check.IsNil, check.Commentf("[%s] could not create new request", d.id))
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req.URL.Host = clientConfig.addr
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req.URL.Scheme = clientConfig.scheme
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resp, err := client.Do(req)
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if err != nil {
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continue
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}
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if resp.StatusCode != http.StatusOK {
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d.c.Logf("[%s] received status != 200 OK: %s", d.id, resp.Status)
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}
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d.c.Logf("[%s] daemon started", d.id)
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d.root, err = d.queryRootDir()
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if err != nil {
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return fmt.Errorf("[%s] error querying daemon for root directory: %v", d.id, err)
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}
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return nil
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2016-03-26 00:42:30 +03:00
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case <-d.wait:
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return fmt.Errorf("[%s] Daemon exited during startup", d.id)
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2016-03-04 11:29:24 +03:00
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}
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}
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}
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// StartWithBusybox will first start the daemon with Daemon.Start()
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// then save the busybox image from the main daemon and load it into this Daemon instance.
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func (d *Daemon) StartWithBusybox(arg ...string) error {
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if err := d.Start(arg...); err != nil {
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return err
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}
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return d.LoadBusybox()
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}
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2016-03-18 21:50:19 +03:00
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// Kill will send a SIGKILL to the daemon
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func (d *Daemon) Kill() error {
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if d.cmd == nil || d.wait == nil {
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return errors.New("daemon not started")
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}
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defer func() {
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d.logFile.Close()
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d.cmd = nil
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}()
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if err := d.cmd.Process.Kill(); err != nil {
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d.c.Logf("Could not kill daemon: %v", err)
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return err
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}
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if err := os.Remove(fmt.Sprintf("%s/docker.pid", d.folder)); err != nil {
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return err
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}
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return nil
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}
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2016-07-27 21:17:44 +03:00
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// DumpStackAndQuit sends SIGQUIT to the daemon, which triggers it to dump its
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// stack to its log file and exit
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// This is used primarily for gathering debug information on test timeout
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func (d *Daemon) DumpStackAndQuit() {
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if d.cmd == nil || d.cmd.Process == nil {
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return
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}
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signalDaemonDump(d.cmd.Process.Pid)
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}
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2016-03-04 11:29:24 +03:00
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// Stop will send a SIGINT every second and wait for the daemon to stop.
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// If it timeouts, a SIGKILL is sent.
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// Stop will not delete the daemon directory. If a purged daemon is needed,
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// instantiate a new one with NewDaemon.
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func (d *Daemon) Stop() error {
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if d.cmd == nil || d.wait == nil {
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return errors.New("daemon not started")
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}
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defer func() {
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d.logFile.Close()
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d.cmd = nil
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}()
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i := 1
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tick := time.Tick(time.Second)
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if err := d.cmd.Process.Signal(os.Interrupt); err != nil {
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return fmt.Errorf("could not send signal: %v", err)
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}
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out1:
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for {
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select {
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case err := <-d.wait:
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return err
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2016-06-14 05:54:20 +03:00
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case <-time.After(20 * time.Second):
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2016-03-04 11:29:24 +03:00
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// time for stopping jobs and run onShutdown hooks
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2016-06-14 05:54:20 +03:00
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d.c.Logf("timeout: %v", d.id)
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2016-03-04 11:29:24 +03:00
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break out1
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}
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}
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out2:
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for {
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select {
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case err := <-d.wait:
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return err
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case <-tick:
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i++
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2016-06-14 05:54:20 +03:00
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if i > 5 {
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2016-03-04 11:29:24 +03:00
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d.c.Logf("tried to interrupt daemon for %d times, now try to kill it", i)
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break out2
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}
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d.c.Logf("Attempt #%d: daemon is still running with pid %d", i, d.cmd.Process.Pid)
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if err := d.cmd.Process.Signal(os.Interrupt); err != nil {
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return fmt.Errorf("could not send signal: %v", err)
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}
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}
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}
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if err := d.cmd.Process.Kill(); err != nil {
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d.c.Logf("Could not kill daemon: %v", err)
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return err
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}
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2016-03-18 21:50:19 +03:00
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if err := os.Remove(fmt.Sprintf("%s/docker.pid", d.folder)); err != nil {
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return err
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}
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2016-03-04 11:29:24 +03:00
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return nil
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}
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// Restart will restart the daemon by first stopping it and then starting it.
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func (d *Daemon) Restart(arg ...string) error {
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d.Stop()
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// in the case of tests running a user namespace-enabled daemon, we have resolved
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// d.root to be the actual final path of the graph dir after the "uid.gid" of
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// remapped root is added--we need to subtract it from the path before calling
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// start or else we will continue making subdirectories rather than truly restarting
|
|
|
|
// with the same location/root:
|
|
|
|
if root := os.Getenv("DOCKER_REMAP_ROOT"); root != "" {
|
|
|
|
d.root = filepath.Dir(d.root)
|
|
|
|
}
|
|
|
|
return d.Start(arg...)
|
|
|
|
}
|
|
|
|
|
|
|
|
// LoadBusybox will load the stored busybox into a newly started daemon
|
|
|
|
func (d *Daemon) LoadBusybox() error {
|
|
|
|
bb := filepath.Join(d.folder, "busybox.tar")
|
|
|
|
if _, err := os.Stat(bb); err != nil {
|
|
|
|
if !os.IsNotExist(err) {
|
|
|
|
return fmt.Errorf("unexpected error on busybox.tar stat: %v", err)
|
|
|
|
}
|
|
|
|
// saving busybox image from main daemon
|
|
|
|
if err := exec.Command(dockerBinary, "save", "--output", bb, "busybox:latest").Run(); err != nil {
|
|
|
|
return fmt.Errorf("could not save busybox image: %v", err)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// loading busybox image to this daemon
|
|
|
|
if out, err := d.Cmd("load", "--input", bb); err != nil {
|
|
|
|
return fmt.Errorf("could not load busybox image: %s", out)
|
|
|
|
}
|
|
|
|
if err := os.Remove(bb); err != nil {
|
|
|
|
d.c.Logf("could not remove %s: %v", bb, err)
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) queryRootDir() (string, error) {
|
|
|
|
// update daemon root by asking /info endpoint (to support user
|
|
|
|
// namespaced daemon with root remapped uid.gid directory)
|
|
|
|
clientConfig, err := d.getClientConfig()
|
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
|
|
|
|
client := &http.Client{
|
|
|
|
Transport: clientConfig.transport,
|
|
|
|
}
|
|
|
|
|
|
|
|
req, err := http.NewRequest("GET", "/info", nil)
|
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
req.Header.Set("Content-Type", "application/json")
|
|
|
|
req.URL.Host = clientConfig.addr
|
|
|
|
req.URL.Scheme = clientConfig.scheme
|
|
|
|
|
|
|
|
resp, err := client.Do(req)
|
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
body := ioutils.NewReadCloserWrapper(resp.Body, func() error {
|
|
|
|
return resp.Body.Close()
|
|
|
|
})
|
|
|
|
|
|
|
|
type Info struct {
|
|
|
|
DockerRootDir string
|
|
|
|
}
|
|
|
|
var b []byte
|
|
|
|
var i Info
|
|
|
|
b, err = readBody(body)
|
2016-07-19 10:40:20 +03:00
|
|
|
if err == nil && resp.StatusCode == http.StatusOK {
|
2016-03-04 11:29:24 +03:00
|
|
|
// read the docker root dir
|
|
|
|
if err = json.Unmarshal(b, &i); err == nil {
|
|
|
|
return i.DockerRootDir, nil
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) sock() string {
|
2016-07-28 17:19:09 +03:00
|
|
|
return fmt.Sprintf("unix://" + d.sockPath())
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) sockPath() string {
|
|
|
|
return filepath.Join(daemonSockRoot, d.id+".sock")
|
2016-03-04 11:29:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) waitRun(contID string) error {
|
|
|
|
args := []string{"--host", d.sock()}
|
|
|
|
return waitInspectWithArgs(contID, "{{.State.Running}}", "true", 10*time.Second, args...)
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) getBaseDeviceSize(c *check.C) int64 {
|
|
|
|
infoCmdOutput, _, err := runCommandPipelineWithOutput(
|
|
|
|
exec.Command(dockerBinary, "-H", d.sock(), "info"),
|
|
|
|
exec.Command("grep", "Base Device Size"),
|
|
|
|
)
|
|
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
basesizeSlice := strings.Split(infoCmdOutput, ":")
|
|
|
|
basesize := strings.Trim(basesizeSlice[1], " ")
|
|
|
|
basesize = strings.Trim(basesize, "\n")[:len(basesize)-3]
|
|
|
|
basesizeFloat, err := strconv.ParseFloat(strings.Trim(basesize, " "), 64)
|
|
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
basesizeBytes := int64(basesizeFloat) * (1024 * 1024 * 1024)
|
|
|
|
return basesizeBytes
|
|
|
|
}
|
|
|
|
|
|
|
|
// Cmd will execute a docker CLI command against this Daemon.
|
|
|
|
// Example: d.Cmd("version") will run docker -H unix://path/to/unix.sock version
|
2016-07-22 19:14:05 +03:00
|
|
|
func (d *Daemon) Cmd(args ...string) (string, error) {
|
|
|
|
c := exec.Command(dockerBinary, d.prependHostArg(args)...)
|
2016-03-04 11:29:24 +03:00
|
|
|
b, err := c.CombinedOutput()
|
|
|
|
return string(b), err
|
|
|
|
}
|
|
|
|
|
2016-07-22 19:14:05 +03:00
|
|
|
func (d *Daemon) prependHostArg(args []string) []string {
|
|
|
|
for _, arg := range args {
|
|
|
|
if arg == "--host" || arg == "-H" {
|
|
|
|
return args
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return append([]string{"--host", d.sock()}, args...)
|
2016-03-04 11:29:24 +03:00
|
|
|
}
|
|
|
|
|
2016-06-14 05:54:20 +03:00
|
|
|
// SockRequest executes a socket request on a daemon and returns statuscode and output.
|
|
|
|
func (d *Daemon) SockRequest(method, endpoint string, data interface{}) (int, []byte, error) {
|
|
|
|
jsonData := bytes.NewBuffer(nil)
|
|
|
|
if err := json.NewEncoder(jsonData).Encode(data); err != nil {
|
|
|
|
return -1, nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
res, body, err := d.SockRequestRaw(method, endpoint, jsonData, "application/json")
|
|
|
|
if err != nil {
|
|
|
|
return -1, nil, err
|
|
|
|
}
|
|
|
|
b, err := readBody(body)
|
|
|
|
return res.StatusCode, b, err
|
|
|
|
}
|
|
|
|
|
|
|
|
// SockRequestRaw executes a socket request on a daemon and returns a http
|
|
|
|
// response and a reader for the output data.
|
|
|
|
func (d *Daemon) SockRequestRaw(method, endpoint string, data io.Reader, ct string) (*http.Response, io.ReadCloser, error) {
|
|
|
|
return sockRequestRawToDaemon(method, endpoint, data, ct, d.sock())
|
|
|
|
}
|
|
|
|
|
2016-03-04 11:29:24 +03:00
|
|
|
// LogFileName returns the path the the daemon's log file
|
|
|
|
func (d *Daemon) LogFileName() string {
|
|
|
|
return d.logFile.Name()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) getIDByName(name string) (string, error) {
|
|
|
|
return d.inspectFieldWithError(name, "Id")
|
|
|
|
}
|
|
|
|
|
2016-06-14 05:54:20 +03:00
|
|
|
func (d *Daemon) activeContainers() (ids []string) {
|
|
|
|
out, _ := d.Cmd("ps", "-q")
|
|
|
|
for _, id := range strings.Split(out, "\n") {
|
|
|
|
if id = strings.TrimSpace(id); id != "" {
|
|
|
|
ids = append(ids, id)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2016-03-04 11:29:24 +03:00
|
|
|
func (d *Daemon) inspectFilter(name, filter string) (string, error) {
|
|
|
|
format := fmt.Sprintf("{{%s}}", filter)
|
|
|
|
out, err := d.Cmd("inspect", "-f", format, name)
|
|
|
|
if err != nil {
|
|
|
|
return "", fmt.Errorf("failed to inspect %s: %s", name, out)
|
|
|
|
}
|
|
|
|
return strings.TrimSpace(out), nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) inspectFieldWithError(name, field string) (string, error) {
|
|
|
|
return d.inspectFilter(name, fmt.Sprintf(".%s", field))
|
|
|
|
}
|
|
|
|
|
|
|
|
func (d *Daemon) findContainerIP(id string) string {
|
|
|
|
out, err := d.Cmd("inspect", fmt.Sprintf("--format='{{ .NetworkSettings.Networks.bridge.IPAddress }}'"), id)
|
|
|
|
if err != nil {
|
|
|
|
d.c.Log(err)
|
|
|
|
}
|
|
|
|
return strings.Trim(out, " \r\n'")
|
|
|
|
}
|
2016-05-24 11:13:54 +03:00
|
|
|
|
|
|
|
func (d *Daemon) buildImageWithOut(name, dockerfile string, useCache bool, buildFlags ...string) (string, int, error) {
|
|
|
|
buildCmd := buildImageCmdWithHost(name, dockerfile, d.sock(), useCache, buildFlags...)
|
|
|
|
return runCommandWithOutput(buildCmd)
|
|
|
|
}
|
2016-06-14 05:54:20 +03:00
|
|
|
|
|
|
|
func (d *Daemon) checkActiveContainerCount(c *check.C) (interface{}, check.CommentInterface) {
|
|
|
|
out, err := d.Cmd("ps", "-q")
|
|
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
if len(strings.TrimSpace(out)) == 0 {
|
|
|
|
return 0, nil
|
|
|
|
}
|
|
|
|
return len(strings.Split(strings.TrimSpace(out), "\n")), check.Commentf("output: %q", string(out))
|
|
|
|
}
|