func runPush(dockerCli *client.DockerCli, remote string) error {
ref, err := reference.ParseNamed(remote)
if err != nil {
return err
}
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(ref)
if err != nil {
return err
}
ctx := context.Background()
// Resolve the Auth config relevant for this server
authConfig := dockerCli.ResolveAuthConfig(ctx, repoInfo.Index)
requestPrivilege := dockerCli.RegistryAuthenticationPrivilegedFunc(repoInfo.Index, "push")
if client.IsTrusted() {
return dockerCli.TrustedPush(ctx, repoInfo, ref, authConfig, requestPrivilege)
}
responseBody, err := dockerCli.ImagePushPrivileged(ctx, authConfig, ref.String(), requestPrivilege)
if err != nil {
return err
}
defer responseBody.Close()
return jsonmessage.DisplayJSONMessagesStream(responseBody, dockerCli.Out(), dockerCli.OutFd(), dockerCli.IsTerminalOut(), nil)
}
func runPull(dockerCli *client.DockerCli, opts pullOptions) error {
distributionRef, err := reference.ParseNamed(opts.remote)
if err != nil {
return err
}
if opts.all && !reference.IsNameOnly(distributionRef) {
return errors.New("tag can't be used with --all-tags/-a")
}
if !opts.all && reference.IsNameOnly(distributionRef) {
distributionRef = reference.WithDefaultTag(distributionRef)
fmt.Fprintf(dockerCli.Out(), "Using default tag: %s\n", reference.DefaultTag)
}
var tag string
switch x := distributionRef.(type) {
case reference.Canonical:
tag = x.Digest().String()
case reference.NamedTagged:
tag = x.Tag()
}
registryRef := registry.ParseReference(tag)
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(distributionRef)
if err != nil {
return err
}
ctx := context.Background()
authConfig := dockerCli.ResolveAuthConfig(ctx, repoInfo.Index)
requestPrivilege := dockerCli.RegistryAuthenticationPrivilegedFunc(repoInfo.Index, "pull")
if client.IsTrusted() && !registryRef.HasDigest() {
// Check if tag is digest
err = dockerCli.TrustedPull(ctx, repoInfo, registryRef, authConfig, requestPrivilege)
} else {
err = dockerCli.ImagePullPrivileged(ctx, authConfig, distributionRef.String(), requestPrivilege, opts.all)
}
if err != nil {
if strings.Contains(err.Error(), "target is a plugin") {
return errors.New(err.Error() + " - Use `docker plugin install`")
}
return err
}
return nil
}
// rewriteDockerfileFrom rewrites the given Dockerfile by resolving images in
// "FROM <image>" instructions to a digest reference. `translator` is a
// function that takes a repository name and tag reference and returns a
// trusted digest reference.
func rewriteDockerfileFrom(ctx context.Context, dockerfile io.Reader, translator translatorFunc) (newDockerfile []byte, resolvedTags []*resolvedTag, err error) {
scanner := bufio.NewScanner(dockerfile)
buf := bytes.NewBuffer(nil)
// Scan the lines of the Dockerfile, looking for a "FROM" line.
for scanner.Scan() {
line := scanner.Text()
matches := dockerfileFromLinePattern.FindStringSubmatch(line)
if matches != nil && matches[1] != api.NoBaseImageSpecifier {
// Replace the line with a resolved "FROM [email protected]"
ref, err := reference.ParseNamed(matches[1])
if err != nil {
return nil, nil, err
}
ref = reference.WithDefaultTag(ref)
if ref, ok := ref.(reference.NamedTagged); ok && client.IsTrusted() {
trustedRef, err := translator(ctx, ref)
if err != nil {
return nil, nil, err
}
line = dockerfileFromLinePattern.ReplaceAllLiteralString(line, fmt.Sprintf("FROM %s", trustedRef.String()))
resolvedTags = append(resolvedTags, &resolvedTag{
digestRef: trustedRef,
tagRef: ref,
})
}
}
_, err := fmt.Fprintln(buf, line)
if err != nil {
return nil, nil, err
}
}
return buf.Bytes(), resolvedTags, scanner.Err()
}
func runBuild(dockerCli *client.DockerCli, options buildOptions) error {
var (
buildCtx io.ReadCloser
err error
)
specifiedContext := options.context
var (
contextDir string
tempDir string
relDockerfile string
progBuff io.Writer
buildBuff io.Writer
)
progBuff = dockerCli.Out()
buildBuff = dockerCli.Out()
if options.quiet {
progBuff = bytes.NewBuffer(nil)
buildBuff = bytes.NewBuffer(nil)
}
switch {
case specifiedContext == "-":
buildCtx, relDockerfile, err = builder.GetContextFromReader(dockerCli.In(), options.dockerfileName)
case urlutil.IsGitURL(specifiedContext):
tempDir, relDockerfile, err = builder.GetContextFromGitURL(specifiedContext, options.dockerfileName)
case urlutil.IsURL(specifiedContext):
buildCtx, relDockerfile, err = builder.GetContextFromURL(progBuff, specifiedContext, options.dockerfileName)
default:
contextDir, relDockerfile, err = builder.GetContextFromLocalDir(specifiedContext, options.dockerfileName)
}
if err != nil {
if options.quiet && urlutil.IsURL(specifiedContext) {
fmt.Fprintln(dockerCli.Err(), progBuff)
}
return fmt.Errorf("unable to prepare context: %s", err)
}
if tempDir != "" {
defer os.RemoveAll(tempDir)
contextDir = tempDir
}
if buildCtx == nil {
// And canonicalize dockerfile name to a platform-independent one
relDockerfile, err = archive.CanonicalTarNameForPath(relDockerfile)
if err != nil {
return fmt.Errorf("cannot canonicalize dockerfile path %s: %v", relDockerfile, err)
}
f, err := os.Open(filepath.Join(contextDir, ".dockerignore"))
if err != nil && !os.IsNotExist(err) {
return err
}
var excludes []string
if err == nil {
excludes, err = dockerignore.ReadAll(f)
if err != nil {
return err
}
}
if err := builder.ValidateContextDirectory(contextDir, excludes); err != nil {
return fmt.Errorf("Error checking context: '%s'.", err)
}
// If .dockerignore mentions .dockerignore or the Dockerfile
// then make sure we send both files over to the daemon
// because Dockerfile is, obviously, needed no matter what, and
// .dockerignore is needed to know if either one needs to be
// removed. The daemon will remove them for us, if needed, after it
// parses the Dockerfile. Ignore errors here, as they will have been
// caught by validateContextDirectory above.
var includes = []string{"."}
keepThem1, _ := fileutils.Matches(".dockerignore", excludes)
keepThem2, _ := fileutils.Matches(relDockerfile, excludes)
if keepThem1 || keepThem2 {
includes = append(includes, ".dockerignore", relDockerfile)
}
buildCtx, err = archive.TarWithOptions(contextDir, &archive.TarOptions{
Compression: archive.Uncompressed,
ExcludePatterns: excludes,
IncludeFiles: includes,
})
if err != nil {
return err
}
}
ctx := context.Background()
var resolvedTags []*resolvedTag
if client.IsTrusted() {
// Wrap the tar archive to replace the Dockerfile entry with the rewritten
// Dockerfile which uses trusted pulls.
buildCtx = replaceDockerfileTarWrapper(ctx, buildCtx, relDockerfile, dockerCli.TrustedReference, &resolvedTags)
}
// Setup an upload progress bar
progressOutput := streamformatter.NewStreamFormatter().NewProgressOutput(progBuff, true)
var body io.Reader = progress.NewProgressReader(buildCtx, progressOutput, 0, "", "Sending build context to Docker daemon")
var memory int64
if options.memory != "" {
parsedMemory, err := units.RAMInBytes(options.memory)
if err != nil {
return err
}
memory = parsedMemory
}
var memorySwap int64
if options.memorySwap != "" {
if options.memorySwap == "-1" {
memorySwap = -1
} else {
parsedMemorySwap, err := units.RAMInBytes(options.memorySwap)
if err != nil {
return err
}
memorySwap = parsedMemorySwap
}
}
var shmSize int64
if options.shmSize != "" {
shmSize, err = units.RAMInBytes(options.shmSize)
if err != nil {
return err
}
}
buildOptions := types.ImageBuildOptions{
Memory: memory,
MemorySwap: memorySwap,
Tags: options.tags.GetAll(),
SuppressOutput: options.quiet,
NoCache: options.noCache,
Remove: options.rm,
ForceRemove: options.forceRm,
PullParent: options.pull,
Isolation: container.Isolation(options.isolation),
CPUSetCPUs: options.cpuSetCpus,
CPUSetMems: options.cpuSetMems,
CPUShares: options.cpuShares,
CPUQuota: options.cpuQuota,
CPUPeriod: options.cpuPeriod,
CgroupParent: options.cgroupParent,
Dockerfile: relDockerfile,
ShmSize: shmSize,
Ulimits: options.ulimits.GetList(),
BuildArgs: runconfigopts.ConvertKVStringsToMap(options.buildArgs.GetAll()),
AuthConfigs: dockerCli.RetrieveAuthConfigs(),
Labels: runconfigopts.ConvertKVStringsToMap(options.labels),
}
response, err := dockerCli.Client().ImageBuild(ctx, body, buildOptions)
if err != nil {
return err
}
defer response.Body.Close()
err = jsonmessage.DisplayJSONMessagesStream(response.Body, buildBuff, dockerCli.OutFd(), dockerCli.IsTerminalOut(), nil)
if err != nil {
if jerr, ok := err.(*jsonmessage.JSONError); ok {
// If no error code is set, default to 1
if jerr.Code == 0 {
jerr.Code = 1
}
if options.quiet {
fmt.Fprintf(dockerCli.Err(), "%s%s", progBuff, buildBuff)
}
return cli.StatusError{Status: jerr.Message, StatusCode: jerr.Code}
}
}
// Windows: show error message about modified file permissions if the
// daemon isn't running Windows.
if response.OSType != "windows" && runtime.GOOS == "windows" && !options.quiet {
fmt.Fprintln(dockerCli.Err(), `SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.`)
}
// Everything worked so if -q was provided the output from the daemon
// should be just the image ID and we'll print that to stdout.
if options.quiet {
fmt.Fprintf(dockerCli.Out(), "%s", buildBuff)
}
if client.IsTrusted() {
// Since the build was successful, now we must tag any of the resolved
// images from the above Dockerfile rewrite.
for _, resolved := range resolvedTags {
if err := dockerCli.TagTrusted(ctx, resolved.digestRef, resolved.tagRef); err != nil {
return err
}
}
}
return nil
}
func createContainer(ctx context.Context, dockerCli *client.DockerCli, config *container.Config, hostConfig *container.HostConfig, networkingConfig *networktypes.NetworkingConfig, cidfile, name string) (*types.ContainerCreateResponse, error) {
stderr := dockerCli.Err()
var containerIDFile *cidFile
if cidfile != "" {
var err error
if containerIDFile, err = newCIDFile(cidfile); err != nil {
return nil, err
}
defer containerIDFile.Close()
}
var trustedRef reference.Canonical
_, ref, err := reference.ParseIDOrReference(config.Image)
if err != nil {
return nil, err
}
if ref != nil {
ref = reference.WithDefaultTag(ref)
if ref, ok := ref.(reference.NamedTagged); ok && client.IsTrusted() {
var err error
trustedRef, err = dockerCli.TrustedReference(ctx, ref)
if err != nil {
return nil, err
}
config.Image = trustedRef.String()
}
}
//create the container
response, err := dockerCli.Client().ContainerCreate(ctx, config, hostConfig, networkingConfig, name)
//if image not found try to pull it
if err != nil {
if apiclient.IsErrImageNotFound(err) && ref != nil {
fmt.Fprintf(stderr, "Unable to find image '%s' locally\n", ref.String())
// we don't want to write to stdout anything apart from container.ID
if err = pullImage(ctx, dockerCli, config.Image, stderr); err != nil {
return nil, err
}
if ref, ok := ref.(reference.NamedTagged); ok && trustedRef != nil {
if err := dockerCli.TagTrusted(ctx, trustedRef, ref); err != nil {
return nil, err
}
}
// Retry
var retryErr error
response, retryErr = dockerCli.Client().ContainerCreate(ctx, config, hostConfig, networkingConfig, name)
if retryErr != nil {
return nil, retryErr
}
} else {
return nil, err
}
}
for _, warning := range response.Warnings {
fmt.Fprintf(stderr, "WARNING: %s\n", warning)
}
if containerIDFile != nil {
if err = containerIDFile.Write(response.ID); err != nil {
return nil, err
}
}
return &response, nil
}
