func (cli *DockerCli) call(method, path string, data interface{}, passAuthInfo bool) (io.ReadCloser, int, error) {
params, err := cli.encodeData(data)
if err != nil {
return nil, -1, err
}
req, err := http.NewRequest(method, fmt.Sprintf("/v%s%s", api.APIVERSION, path), params)
if err != nil {
return nil, -1, err
}
if passAuthInfo {
cli.LoadConfigFile()
// Resolve the Auth config relevant for this server
authConfig := cli.configFile.ResolveAuthConfig(registry.IndexServerAddress())
getHeaders := func(authConfig registry.AuthConfig) (map[string][]string, error) {
buf, err := json.Marshal(authConfig)
if err != nil {
return nil, err
}
registryAuthHeader := []string{
base64.URLEncoding.EncodeToString(buf),
}
return map[string][]string{"X-Registry-Auth": registryAuthHeader}, nil
}
if headers, err := getHeaders(authConfig); err == nil && headers != nil {
for k, v := range headers {
req.Header[k] = v
}
}
}
req.Header.Set("User-Agent", "Docker-Client/"+dockerversion.VERSION)
req.URL.Host = cli.addr
req.URL.Scheme = cli.scheme
if data != nil {
req.Header.Set("Content-Type", "application/json")
} else if method == "POST" {
req.Header.Set("Content-Type", "plain/text")
}
resp, err := cli.HTTPClient().Do(req)
if err != nil {
if strings.Contains(err.Error(), "connection refused") {
return nil, -1, ErrConnectionRefused
}
if cli.tlsConfig == nil {
return nil, -1, fmt.Errorf("%v. Are you trying to connect to a TLS-enabled daemon without TLS?", err)
}
return nil, -1, fmt.Errorf("An error occurred trying to connect: %v", err)
}
if resp.StatusCode < 200 || resp.StatusCode >= 400 {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, -1, err
}
if len(body) == 0 {
return nil, resp.StatusCode, fmt.Errorf("Error: request returned %s for API route and version %s, check if the server supports the requested API version", http.StatusText(resp.StatusCode), req.URL)
}
return nil, resp.StatusCode, fmt.Errorf("Error response from daemon: %s", bytes.TrimSpace(body))
}
return resp.Body, resp.StatusCode, nil
}
func main() {
var insecureDockerRegistries registries
var dockerRegistryIPs ips
flagSet := flag.NewFlagSet("builder", flag.ExitOnError)
dockerImageURL := flagSet.String(
"dockerImageURL",
"",
"docker image uri in docker://[registry/][scope/]repository[#tag] format",
)
dockerRef := flagSet.String(
"dockerRef",
"",
"docker image reference in standard docker string format",
)
outputFilename := flagSet.String(
"outputMetadataJSONFilename",
"/tmp/result/result.json",
"filename in which to write the app metadata",
)
flagSet.Var(
&insecureDockerRegistries,
"insecureDockerRegistries",
"insecure Docker Registry addresses (host:port)",
)
dockerDaemonExecutablePath := flagSet.String(
"dockerDaemonExecutablePath",
"/tmp/docker_app_lifecycle/docker",
"path to the 'docker' executable",
)
cacheDockerImage := flagSet.Bool(
"cacheDockerImage",
false,
"Caches Docker images to private docker registry",
)
flagSet.Var(
&dockerRegistryIPs,
"dockerRegistryIPs",
"Docker Registry IPs",
)
dockerRegistryHost := flagSet.String(
"dockerRegistryHost",
"",
"Docker Registry host",
)
dockerRegistryPort := flagSet.Int(
"dockerRegistryPort",
8080,
"Docker Registry port",
)
dockerLoginServer := flagSet.String(
"dockerLoginServer",
registry.IndexServerAddress(),
"Docker Login server address",
)
dockerUser := flagSet.String(
"dockerUser",
"",
"User for pulling from docker registry",
)
dockerPassword := flagSet.String(
"dockerPassword",
"",
"Password for pulling from docker registry",
)
dockerEmail := flagSet.String(
"dockerEmail",
"",
"Email for pulling from docker registry",
)
if err := flagSet.Parse(os.Args[1:len(os.Args)]); err != nil {
println(err.Error())
os.Exit(1)
}
var repoName string
var tag string
if len(*dockerImageURL) > 0 {
parts, err := url.Parse(*dockerImageURL)
if err != nil {
println("invalid dockerImageURL: " + *dockerImageURL)
flagSet.PrintDefaults()
os.Exit(1)
}
repoName, tag = helpers.ParseDockerURL(parts)
} else if len(*dockerRef) > 0 {
repoName, tag = helpers.ParseDockerRef(*dockerRef)
} else {
println("missing flag: dockerImageURL or dockerRef required")
flagSet.PrintDefaults()
os.Exit(1)
}
builder := Builder{
RepoName: repoName,
Tag: tag,
OutputFilename: *outputFilename,
DockerDaemonExecutablePath: *dockerDaemonExecutablePath,
InsecureDockerRegistries: insecureDockerRegistries,
DockerDaemonTimeout: 10 * time.Second,
CacheDockerImage: *cacheDockerImage,
DockerRegistryIPs: dockerRegistryIPs,
DockerRegistryHost: *dockerRegistryHost,
DockerRegistryPort: *dockerRegistryPort,
DockerLoginServer: *dockerLoginServer,
DockerUser: *dockerUser,
DockerPassword: *dockerPassword,
DockerEmail: *dockerEmail,
}
members := grouper.Members{
{"builder", ifrit.RunFunc(builder.Run)},
}
if *cacheDockerImage {
if len(dockerRegistryIPs) == 0 {
println("missing flag: dockerRegistryIPs required")
os.Exit(1)
}
if len(*dockerRegistryHost) == 0 {
println("missing flag: dockerRegistryHost required")
os.Exit(1)
}
if strings.Contains(*dockerRegistryHost, ":") {
println("invalid host format", *dockerRegistryHost)
os.Exit(1)
}
if *dockerRegistryPort < 0 {
println("negative port number", *dockerRegistryPort)
os.Exit(1)
}
if *dockerRegistryPort > 65535 {
println("port number too big", *dockerRegistryPort)
os.Exit(1)
}
validateCredentials(*dockerLoginServer, *dockerUser, *dockerPassword, *dockerEmail)
if _, err := os.Stat(*dockerDaemonExecutablePath); err != nil {
println("docker daemon not found in", *dockerDaemonExecutablePath)
os.Exit(1)
}
dockerDaemon := DockerDaemon{
DockerDaemonPath: *dockerDaemonExecutablePath,
InsecureDockerRegistries: insecureDockerRegistries,
DockerRegistryIPs: dockerRegistryIPs,
DockerRegistryHost: *dockerRegistryHost,
}
members = append(members, grouper.Member{"docker_daemon", ifrit.RunFunc(dockerDaemon.Run)})
}
group := grouper.NewParallel(os.Interrupt, members)
process := ifrit.Invoke(sigmon.New(group))
fmt.Println("Staging process started ...")
err := <-process.Wait()
if err != nil {
println("Staging process failed:", err.Error())
os.Exit(2)
}
fmt.Println("Staging process finished")
}