mirror of https://github.com/docker/cli.git
Move image trust related cli methods into the image package.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
This commit is contained in:
Daniel Nephin
parent
e2f7387906
commit
0cf85349f3
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@ -21,6 +21,13 @@ import (
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"github.com/docker/go-connections/tlsconfig"
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)
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// Streams is an interface which exposes the standard input and output streams
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type Streams interface {
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In() *InStream
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Out() *OutStream
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Err() io.Writer
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}
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// DockerCli represents the docker command line client.
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// Instances of the client can be returned from NewDockerCli.
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type DockerCli struct {
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@ -105,7 +112,7 @@ func NewAPIClientFromFlags(opts *cliflags.CommonOptions, configFile *configfile.
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if customHeaders == nil {
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customHeaders = map[string]string{}
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}
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customHeaders["User-Agent"] = clientUserAgent()
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customHeaders["User-Agent"] = UserAgent()
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verStr := api.DefaultVersion
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if tmpStr := os.Getenv("DOCKER_API_VERSION"); tmpStr != "" {
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@ -159,6 +166,7 @@ func newHTTPClient(host string, tlsOptions *tlsconfig.Options) (*http.Client, er
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}, nil
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}
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func clientUserAgent() string {
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// UserAgent returns the user agent string used for making API requests
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func UserAgent() string {
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return "Docker-Client/" + dockerversion.Version + " (" + runtime.GOOS + ")"
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}
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@ -9,6 +9,7 @@ import (
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"github.com/docker/docker/cli"
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"github.com/docker/docker/cli/command"
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"github.com/docker/docker/cli/command/image"
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"github.com/docker/docker/pkg/jsonmessage"
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// FIXME migrate to docker/distribution/reference
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"github.com/docker/docker/api/types"
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@ -169,7 +170,7 @@ func createContainer(ctx context.Context, dockerCli *command.DockerCli, config *
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if ref, ok := ref.(reference.NamedTagged); ok && command.IsTrusted() {
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var err error
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trustedRef, err = dockerCli.TrustedReference(ctx, ref)
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trustedRef, err = image.TrustedReference(ctx, dockerCli, ref)
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if err != nil {
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return nil, err
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}
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@ -190,7 +191,7 @@ func createContainer(ctx context.Context, dockerCli *command.DockerCli, config *
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return nil, err
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}
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if ref, ok := ref.(reference.NamedTagged); ok && trustedRef != nil {
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if err := dockerCli.TagTrusted(ctx, trustedRef, ref); err != nil {
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if err := image.TagTrusted(ctx, dockerCli, trustedRef, ref); err != nil {
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return nil, err
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}
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}
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@ -12,14 +12,9 @@ import (
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"golang.org/x/net/context"
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)
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type streams interface {
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In() *command.InStream
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Out() *command.OutStream
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}
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// holdHijackedConnection handles copying input to and output from streams to the
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// connection
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func holdHijackedConnection(ctx context.Context, streams streams, tty bool, inputStream io.ReadCloser, outputStream, errorStream io.Writer, resp types.HijackedResponse) error {
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func holdHijackedConnection(ctx context.Context, streams command.Streams, tty bool, inputStream io.ReadCloser, outputStream, errorStream io.Writer, resp types.HijackedResponse) error {
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var (
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err error
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restoreOnce sync.Once
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@ -100,14 +95,14 @@ func holdHijackedConnection(ctx context.Context, streams streams, tty bool, inpu
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return nil
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}
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func setRawTerminal(streams streams) error {
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func setRawTerminal(streams command.Streams) error {
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if err := streams.In().SetRawTerminal(); err != nil {
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return err
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}
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return streams.Out().SetRawTerminal()
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}
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func restoreTerminal(streams streams, in io.Closer) error {
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func restoreTerminal(streams command.Streams, in io.Closer) error {
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streams.In().RestoreTerminal()
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streams.Out().RestoreTerminal()
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// WARNING: DO NOT REMOVE THE OS CHECK !!!
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@ -220,9 +220,12 @@ func runBuild(dockerCli *command.DockerCli, options buildOptions) error {
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var resolvedTags []*resolvedTag
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if command.IsTrusted() {
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translator := func(ctx context.Context, ref reference.NamedTagged) (reference.Canonical, error) {
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return TrustedReference(ctx, dockerCli, ref)
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}
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// Wrap the tar archive to replace the Dockerfile entry with the rewritten
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// Dockerfile which uses trusted pulls.
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buildCtx = replaceDockerfileTarWrapper(ctx, buildCtx, relDockerfile, dockerCli.TrustedReference, &resolvedTags)
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buildCtx = replaceDockerfileTarWrapper(ctx, buildCtx, relDockerfile, translator, &resolvedTags)
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}
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// Setup an upload progress bar
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@ -323,7 +326,7 @@ func runBuild(dockerCli *command.DockerCli, options buildOptions) error {
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// Since the build was successful, now we must tag any of the resolved
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// images from the above Dockerfile rewrite.
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for _, resolved := range resolvedTags {
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if err := dockerCli.TagTrusted(ctx, resolved.digestRef, resolved.tagRef); err != nil {
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if err := TagTrusted(ctx, dockerCli, resolved.digestRef, resolved.tagRef); err != nil {
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return err
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}
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}
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@ -78,9 +78,9 @@ func runPull(dockerCli *command.DockerCli, opts pullOptions) error {
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if command.IsTrusted() && !registryRef.HasDigest() {
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// Check if tag is digest
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err = dockerCli.TrustedPull(ctx, repoInfo, registryRef, authConfig, requestPrivilege)
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err = trustedPull(ctx, dockerCli, repoInfo, registryRef, authConfig, requestPrivilege)
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} else {
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err = dockerCli.ImagePullPrivileged(ctx, authConfig, distributionRef.String(), requestPrivilege, opts.all)
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err = imagePullPrivileged(ctx, dockerCli, authConfig, distributionRef.String(), requestPrivilege, opts.all)
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}
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if err != nil {
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if strings.Contains(err.Error(), "target is a plugin") {
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@ -48,10 +48,10 @@ func runPush(dockerCli *command.DockerCli, remote string) error {
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requestPrivilege := dockerCli.RegistryAuthenticationPrivilegedFunc(repoInfo.Index, "push")
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if command.IsTrusted() {
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return dockerCli.TrustedPush(ctx, repoInfo, ref, authConfig, requestPrivilege)
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return trustedPush(ctx, dockerCli, repoInfo, ref, authConfig, requestPrivilege)
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}
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responseBody, err := dockerCli.ImagePushPrivileged(ctx, authConfig, ref.String(), requestPrivilege)
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responseBody, err := imagePushPrivileged(ctx, dockerCli, authConfig, ref.String(), requestPrivilege)
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if err != nil {
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return err
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}
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@ -0,0 +1,576 @@
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package image
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import (
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"encoding/hex"
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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"
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"net/http"
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"net/url"
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"os"
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"path"
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"path/filepath"
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"sort"
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"time"
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"golang.org/x/net/context"
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"github.com/Sirupsen/logrus"
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"github.com/docker/distribution/digest"
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"github.com/docker/distribution/registry/client/auth"
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"github.com/docker/distribution/registry/client/transport"
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"github.com/docker/docker/api/types"
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registrytypes "github.com/docker/docker/api/types/registry"
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"github.com/docker/docker/cli/command"
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"github.com/docker/docker/cliconfig"
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"github.com/docker/docker/distribution"
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"github.com/docker/docker/pkg/jsonmessage"
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"github.com/docker/docker/reference"
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"github.com/docker/docker/registry"
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"github.com/docker/go-connections/tlsconfig"
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"github.com/docker/notary/client"
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"github.com/docker/notary/passphrase"
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"github.com/docker/notary/trustmanager"
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"github.com/docker/notary/trustpinning"
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"github.com/docker/notary/tuf/data"
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"github.com/docker/notary/tuf/signed"
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"github.com/docker/notary/tuf/store"
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)
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var (
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releasesRole = path.Join(data.CanonicalTargetsRole, "releases")
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)
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type target struct {
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reference registry.Reference
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digest digest.Digest
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size int64
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}
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// trustedPush handles content trust pushing of an image
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func trustedPush(ctx context.Context, cli *command.DockerCli, repoInfo *registry.RepositoryInfo, ref reference.Named, authConfig types.AuthConfig, requestPrivilege types.RequestPrivilegeFunc) error {
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responseBody, err := imagePushPrivileged(ctx, cli, authConfig, ref.String(), requestPrivilege)
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if err != nil {
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return err
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}
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defer responseBody.Close()
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// If it is a trusted push we would like to find the target entry which match the
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// tag provided in the function and then do an AddTarget later.
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target := &client.Target{}
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// Count the times of calling for handleTarget,
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// if it is called more that once, that should be considered an error in a trusted push.
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cnt := 0
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handleTarget := func(aux *json.RawMessage) {
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cnt++
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if cnt > 1 {
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// handleTarget should only be called one. This will be treated as an error.
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return
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}
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var pushResult distribution.PushResult
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err := json.Unmarshal(*aux, &pushResult)
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if err == nil && pushResult.Tag != "" && pushResult.Digest.Validate() == nil {
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h, err := hex.DecodeString(pushResult.Digest.Hex())
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if err != nil {
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target = nil
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return
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}
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target.Name = registry.ParseReference(pushResult.Tag).String()
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target.Hashes = data.Hashes{string(pushResult.Digest.Algorithm()): h}
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target.Length = int64(pushResult.Size)
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}
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}
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var tag string
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switch x := ref.(type) {
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case reference.Canonical:
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return errors.New("cannot push a digest reference")
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case reference.NamedTagged:
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tag = x.Tag()
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}
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// We want trust signatures to always take an explicit tag,
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// otherwise it will act as an untrusted push.
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if tag == "" {
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if err = jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), nil); err != nil {
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return err
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}
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fmt.Fprintln(cli.Out(), "No tag specified, skipping trust metadata push")
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return nil
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}
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if err = jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), handleTarget); err != nil {
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return err
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}
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if cnt > 1 {
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return fmt.Errorf("internal error: only one call to handleTarget expected")
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}
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if target == nil {
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fmt.Fprintln(cli.Out(), "No targets found, please provide a specific tag in order to sign it")
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return nil
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}
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fmt.Fprintln(cli.Out(), "Signing and pushing trust metadata")
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repo, err := GetNotaryRepository(cli, repoInfo, authConfig, "push", "pull")
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if err != nil {
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fmt.Fprintf(cli.Out(), "Error establishing connection to notary repository: %s\n", err)
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return err
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}
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// get the latest repository metadata so we can figure out which roles to sign
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err = repo.Update(false)
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switch err.(type) {
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case client.ErrRepoNotInitialized, client.ErrRepositoryNotExist:
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keys := repo.CryptoService.ListKeys(data.CanonicalRootRole)
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var rootKeyID string
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// always select the first root key
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if len(keys) > 0 {
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sort.Strings(keys)
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rootKeyID = keys[0]
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} else {
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rootPublicKey, err := repo.CryptoService.Create(data.CanonicalRootRole, "", data.ECDSAKey)
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if err != nil {
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return err
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}
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rootKeyID = rootPublicKey.ID()
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}
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// Initialize the notary repository with a remotely managed snapshot key
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if err := repo.Initialize(rootKeyID, data.CanonicalSnapshotRole); err != nil {
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return notaryError(repoInfo.FullName(), err)
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}
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fmt.Fprintf(cli.Out(), "Finished initializing %q\n", repoInfo.FullName())
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err = repo.AddTarget(target, data.CanonicalTargetsRole)
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case nil:
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// already initialized and we have successfully downloaded the latest metadata
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err = addTargetToAllSignableRoles(repo, target)
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default:
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return notaryError(repoInfo.FullName(), err)
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}
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if err == nil {
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err = repo.Publish()
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}
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if err != nil {
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fmt.Fprintf(cli.Out(), "Failed to sign %q:%s - %s\n", repoInfo.FullName(), tag, err.Error())
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return notaryError(repoInfo.FullName(), err)
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}
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fmt.Fprintf(cli.Out(), "Successfully signed %q:%s\n", repoInfo.FullName(), tag)
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return nil
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}
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// Attempt to add the image target to all the top level delegation roles we can
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// (based on whether we have the signing key and whether the role's path allows
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// us to).
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// If there are no delegation roles, we add to the targets role.
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func addTargetToAllSignableRoles(repo *client.NotaryRepository, target *client.Target) error {
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var signableRoles []string
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// translate the full key names, which includes the GUN, into just the key IDs
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allCanonicalKeyIDs := make(map[string]struct{})
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for fullKeyID := range repo.CryptoService.ListAllKeys() {
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allCanonicalKeyIDs[path.Base(fullKeyID)] = struct{}{}
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}
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allDelegationRoles, err := repo.GetDelegationRoles()
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if err != nil {
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return err
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}
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// if there are no delegation roles, then just try to sign it into the targets role
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if len(allDelegationRoles) == 0 {
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return repo.AddTarget(target, data.CanonicalTargetsRole)
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}
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// there are delegation roles, find every delegation role we have a key for, and
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// attempt to sign into into all those roles.
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for _, delegationRole := range allDelegationRoles {
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// We do not support signing any delegation role that isn't a direct child of the targets role.
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// Also don't bother checking the keys if we can't add the target
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// to this role due to path restrictions
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if path.Dir(delegationRole.Name) != data.CanonicalTargetsRole || !delegationRole.CheckPaths(target.Name) {
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continue
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}
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for _, canonicalKeyID := range delegationRole.KeyIDs {
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if _, ok := allCanonicalKeyIDs[canonicalKeyID]; ok {
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signableRoles = append(signableRoles, delegationRole.Name)
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break
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}
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}
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}
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if len(signableRoles) == 0 {
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return fmt.Errorf("no valid signing keys for delegation roles")
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}
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return repo.AddTarget(target, signableRoles...)
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}
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// imagePushPrivileged push the image
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func imagePushPrivileged(ctx context.Context, cli *command.DockerCli, authConfig types.AuthConfig, ref string, requestPrivilege types.RequestPrivilegeFunc) (io.ReadCloser, error) {
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encodedAuth, err := command.EncodeAuthToBase64(authConfig)
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if err != nil {
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return nil, err
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}
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options := types.ImagePushOptions{
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RegistryAuth: encodedAuth,
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PrivilegeFunc: requestPrivilege,
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}
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return cli.Client().ImagePush(ctx, ref, options)
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}
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// trustedPull handles content trust pulling of an image
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func trustedPull(ctx context.Context, cli *command.DockerCli, repoInfo *registry.RepositoryInfo, ref registry.Reference, authConfig types.AuthConfig, requestPrivilege types.RequestPrivilegeFunc) error {
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var refs []target
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notaryRepo, err := GetNotaryRepository(cli, repoInfo, authConfig, "pull")
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if err != nil {
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fmt.Fprintf(cli.Out(), "Error establishing connection to trust repository: %s\n", err)
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return err
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}
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if ref.String() == "" {
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// List all targets
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targets, err := notaryRepo.ListTargets(releasesRole, data.CanonicalTargetsRole)
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if err != nil {
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return notaryError(repoInfo.FullName(), err)
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}
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for _, tgt := range targets {
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t, err := convertTarget(tgt.Target)
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if err != nil {
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fmt.Fprintf(cli.Out(), "Skipping target for %q\n", repoInfo.Name())
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continue
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}
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// Only list tags in the top level targets role or the releases delegation role - ignore
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// all other delegation roles
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if tgt.Role != releasesRole && tgt.Role != data.CanonicalTargetsRole {
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continue
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}
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refs = append(refs, t)
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}
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if len(refs) == 0 {
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return notaryError(repoInfo.FullName(), fmt.Errorf("No trusted tags for %s", repoInfo.FullName()))
|
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}
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} else {
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t, err := notaryRepo.GetTargetByName(ref.String(), releasesRole, data.CanonicalTargetsRole)
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if err != nil {
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return notaryError(repoInfo.FullName(), err)
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}
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// Only get the tag if it's in the top level targets role or the releases delegation role
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// ignore it if it's in any other delegation roles
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if t.Role != releasesRole && t.Role != data.CanonicalTargetsRole {
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return notaryError(repoInfo.FullName(), fmt.Errorf("No trust data for %s", ref.String()))
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}
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logrus.Debugf("retrieving target for %s role\n", t.Role)
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r, err := convertTarget(t.Target)
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if err != nil {
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return err
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|
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}
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refs = append(refs, r)
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}
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for i, r := range refs {
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displayTag := r.reference.String()
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if displayTag != "" {
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displayTag = ":" + displayTag
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}
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fmt.Fprintf(cli.Out(), "Pull (%d of %d): %s%s@%s\n", i+1, len(refs), repoInfo.Name(), displayTag, r.digest)
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ref, err := reference.WithDigest(repoInfo, r.digest)
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if err != nil {
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return err
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}
|
||||
if err := imagePullPrivileged(ctx, cli, authConfig, ref.String(), requestPrivilege, false); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// If reference is not trusted, tag by trusted reference
|
||||
if !r.reference.HasDigest() {
|
||||
tagged, err := reference.WithTag(repoInfo, r.reference.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
trustedRef, err := reference.WithDigest(repoInfo, r.digest)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := TagTrusted(ctx, cli, trustedRef, tagged); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// imagePullPrivileged pulls the image and displays it to the output
|
||||
func imagePullPrivileged(ctx context.Context, cli *command.DockerCli, authConfig types.AuthConfig, ref string, requestPrivilege types.RequestPrivilegeFunc, all bool) error {
|
||||
|
||||
encodedAuth, err := command.EncodeAuthToBase64(authConfig)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
options := types.ImagePullOptions{
|
||||
RegistryAuth: encodedAuth,
|
||||
PrivilegeFunc: requestPrivilege,
|
||||
All: all,
|
||||
}
|
||||
|
||||
responseBody, err := cli.Client().ImagePull(ctx, ref, options)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer responseBody.Close()
|
||||
|
||||
return jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), nil)
|
||||
}
|
||||
|
||||
func trustDirectory() string {
|
||||
return filepath.Join(cliconfig.ConfigDir(), "trust")
|
||||
}
|
||||
|
||||
// certificateDirectory returns the directory containing
|
||||
// TLS certificates for the given server. An error is
|
||||
// returned if there was an error parsing the server string.
|
||||
func certificateDirectory(server string) (string, error) {
|
||||
u, err := url.Parse(server)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return filepath.Join(cliconfig.ConfigDir(), "tls", u.Host), nil
|
||||
}
|
||||
|
||||
func trustServer(index *registrytypes.IndexInfo) (string, error) {
|
||||
if s := os.Getenv("DOCKER_CONTENT_TRUST_SERVER"); s != "" {
|
||||
urlObj, err := url.Parse(s)
|
||||
if err != nil || urlObj.Scheme != "https" {
|
||||
return "", fmt.Errorf("valid https URL required for trust server, got %s", s)
|
||||
}
|
||||
|
||||
return s, nil
|
||||
}
|
||||
if index.Official {
|
||||
return registry.NotaryServer, nil
|
||||
}
|
||||
return "https://" + index.Name, nil
|
||||
}
|
||||
|
||||
type simpleCredentialStore struct {
|
||||
auth types.AuthConfig
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) Basic(u *url.URL) (string, string) {
|
||||
return scs.auth.Username, scs.auth.Password
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) RefreshToken(u *url.URL, service string) string {
|
||||
return scs.auth.IdentityToken
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) SetRefreshToken(*url.URL, string, string) {
|
||||
}
|
||||
|
||||
// GetNotaryRepository returns a NotaryRepository which stores all the
|
||||
// information needed to operate on a notary repository.
|
||||
// It creates an HTTP transport providing authentication support.
|
||||
// TODO: move this too
|
||||
func GetNotaryRepository(streams command.Streams, repoInfo *registry.RepositoryInfo, authConfig types.AuthConfig, actions ...string) (*client.NotaryRepository, error) {
|
||||
server, err := trustServer(repoInfo.Index)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var cfg = tlsconfig.ClientDefault()
|
||||
cfg.InsecureSkipVerify = !repoInfo.Index.Secure
|
||||
|
||||
// Get certificate base directory
|
||||
certDir, err := certificateDirectory(server)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
logrus.Debugf("reading certificate directory: %s", certDir)
|
||||
|
||||
if err := registry.ReadCertsDirectory(cfg, certDir); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
base := &http.Transport{
|
||||
Proxy: http.ProxyFromEnvironment,
|
||||
Dial: (&net.Dialer{
|
||||
Timeout: 30 * time.Second,
|
||||
KeepAlive: 30 * time.Second,
|
||||
DualStack: true,
|
||||
}).Dial,
|
||||
TLSHandshakeTimeout: 10 * time.Second,
|
||||
TLSClientConfig: cfg,
|
||||
DisableKeepAlives: true,
|
||||
}
|
||||
|
||||
// Skip configuration headers since request is not going to Docker daemon
|
||||
modifiers := registry.DockerHeaders(command.UserAgent(), http.Header{})
|
||||
authTransport := transport.NewTransport(base, modifiers...)
|
||||
pingClient := &http.Client{
|
||||
Transport: authTransport,
|
||||
Timeout: 5 * time.Second,
|
||||
}
|
||||
endpointStr := server + "/v2/"
|
||||
req, err := http.NewRequest("GET", endpointStr, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
challengeManager := auth.NewSimpleChallengeManager()
|
||||
|
||||
resp, err := pingClient.Do(req)
|
||||
if err != nil {
|
||||
// Ignore error on ping to operate in offline mode
|
||||
logrus.Debugf("Error pinging notary server %q: %s", endpointStr, err)
|
||||
} else {
|
||||
defer resp.Body.Close()
|
||||
|
||||
// Add response to the challenge manager to parse out
|
||||
// authentication header and register authentication method
|
||||
if err := challengeManager.AddResponse(resp); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
creds := simpleCredentialStore{auth: authConfig}
|
||||
tokenHandler := auth.NewTokenHandler(authTransport, creds, repoInfo.FullName(), actions...)
|
||||
basicHandler := auth.NewBasicHandler(creds)
|
||||
modifiers = append(modifiers, transport.RequestModifier(auth.NewAuthorizer(challengeManager, tokenHandler, basicHandler)))
|
||||
tr := transport.NewTransport(base, modifiers...)
|
||||
|
||||
return client.NewNotaryRepository(
|
||||
trustDirectory(),
|
||||
repoInfo.FullName(),
|
||||
server,
|
||||
tr,
|
||||
getPassphraseRetriever(streams),
|
||||
trustpinning.TrustPinConfig{})
|
||||
}
|
||||
|
||||
func getPassphraseRetriever(streams command.Streams) passphrase.Retriever {
|
||||
aliasMap := map[string]string{
|
||||
"root": "root",
|
||||
"snapshot": "repository",
|
||||
"targets": "repository",
|
||||
"default": "repository",
|
||||
}
|
||||
baseRetriever := passphrase.PromptRetrieverWithInOut(streams.In(), streams.Out(), aliasMap)
|
||||
env := map[string]string{
|
||||
"root": os.Getenv("DOCKER_CONTENT_TRUST_ROOT_PASSPHRASE"),
|
||||
"snapshot": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
"targets": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
"default": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
}
|
||||
|
||||
return func(keyName string, alias string, createNew bool, numAttempts int) (string, bool, error) {
|
||||
if v := env[alias]; v != "" {
|
||||
return v, numAttempts > 1, nil
|
||||
}
|
||||
// For non-root roles, we can also try the "default" alias if it is specified
|
||||
if v := env["default"]; v != "" && alias != data.CanonicalRootRole {
|
||||
return v, numAttempts > 1, nil
|
||||
}
|
||||
return baseRetriever(keyName, alias, createNew, numAttempts)
|
||||
}
|
||||
}
|
||||
|
||||
// TrustedReference returns the canonical trusted reference for an image reference
|
||||
func TrustedReference(ctx context.Context, cli *command.DockerCli, ref reference.NamedTagged) (reference.Canonical, error) {
|
||||
repoInfo, err := registry.ParseRepositoryInfo(ref)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Resolve the Auth config relevant for this server
|
||||
authConfig := cli.ResolveAuthConfig(ctx, repoInfo.Index)
|
||||
|
||||
notaryRepo, err := GetNotaryRepository(cli, repoInfo, authConfig, "pull")
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.Out(), "Error establishing connection to trust repository: %s\n", err)
|
||||
return nil, err
|
||||
}
|
||||
|
||||
t, err := notaryRepo.GetTargetByName(ref.Tag(), releasesRole, data.CanonicalTargetsRole)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Only list tags in the top level targets role or the releases delegation role - ignore
|
||||
// all other delegation roles
|
||||
if t.Role != releasesRole && t.Role != data.CanonicalTargetsRole {
|
||||
return nil, notaryError(repoInfo.FullName(), fmt.Errorf("No trust data for %s", ref.Tag()))
|
||||
}
|
||||
r, err := convertTarget(t.Target)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
|
||||
}
|
||||
|
||||
return reference.WithDigest(ref, r.digest)
|
||||
}
|
||||
|
||||
func convertTarget(t client.Target) (target, error) {
|
||||
h, ok := t.Hashes["sha256"]
|
||||
if !ok {
|
||||
return target{}, errors.New("no valid hash, expecting sha256")
|
||||
}
|
||||
return target{
|
||||
reference: registry.ParseReference(t.Name),
|
||||
digest: digest.NewDigestFromHex("sha256", hex.EncodeToString(h)),
|
||||
size: t.Length,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// TagTrusted tags a trusted ref
|
||||
func TagTrusted(ctx context.Context, cli *command.DockerCli, trustedRef reference.Canonical, ref reference.NamedTagged) error {
|
||||
fmt.Fprintf(cli.Out(), "Tagging %s as %s\n", trustedRef.String(), ref.String())
|
||||
|
||||
return cli.Client().ImageTag(ctx, trustedRef.String(), ref.String())
|
||||
}
|
||||
|
||||
// notaryError formats an error message received from the notary service
|
||||
func notaryError(repoName string, err error) error {
|
||||
switch err.(type) {
|
||||
case *json.SyntaxError:
|
||||
logrus.Debugf("Notary syntax error: %s", err)
|
||||
return fmt.Errorf("Error: no trust data available for remote repository %s. Try running notary server and setting DOCKER_CONTENT_TRUST_SERVER to its HTTPS address?", repoName)
|
||||
case signed.ErrExpired:
|
||||
return fmt.Errorf("Error: remote repository %s out-of-date: %v", repoName, err)
|
||||
case trustmanager.ErrKeyNotFound:
|
||||
return fmt.Errorf("Error: signing keys for remote repository %s not found: %v", repoName, err)
|
||||
case *net.OpError:
|
||||
return fmt.Errorf("Error: error contacting notary server: %v", err)
|
||||
case store.ErrMetaNotFound:
|
||||
return fmt.Errorf("Error: trust data missing for remote repository %s or remote repository not found: %v", repoName, err)
|
||||
case signed.ErrInvalidKeyType:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data mismatch for remote repository %s: %v", repoName, err)
|
||||
case signed.ErrNoKeys:
|
||||
return fmt.Errorf("Error: could not find signing keys for remote repository %s, or could not decrypt signing key: %v", repoName, err)
|
||||
case signed.ErrLowVersion:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data version is lower than expected for remote repository %s: %v", repoName, err)
|
||||
case signed.ErrRoleThreshold:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data has insufficient signatures for remote repository %s: %v", repoName, err)
|
||||
case client.ErrRepositoryNotExist:
|
||||
return fmt.Errorf("Error: remote trust data does not exist for %s: %v", repoName, err)
|
||||
case signed.ErrInsufficientSignatures:
|
||||
return fmt.Errorf("Error: could not produce valid signature for %s. If Yubikey was used, was touch input provided?: %v", repoName, err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package command
|
||||
package image
|
||||
|
||||
import (
|
||||
"os"
|
||||
561
command/trust.go
561
command/trust.go
|
|
@ -1,47 +1,14 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"encoding/hex"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"os"
|
||||
"path"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"strconv"
|
||||
"time"
|
||||
|
||||
"golang.org/x/net/context"
|
||||
|
||||
"github.com/Sirupsen/logrus"
|
||||
"github.com/docker/distribution/digest"
|
||||
"github.com/docker/distribution/registry/client/auth"
|
||||
"github.com/docker/distribution/registry/client/transport"
|
||||
"github.com/docker/docker/api/types"
|
||||
registrytypes "github.com/docker/docker/api/types/registry"
|
||||
"github.com/docker/docker/cliconfig"
|
||||
"github.com/docker/docker/distribution"
|
||||
"github.com/docker/docker/pkg/jsonmessage"
|
||||
"github.com/docker/docker/reference"
|
||||
"github.com/docker/docker/registry"
|
||||
"github.com/docker/go-connections/tlsconfig"
|
||||
"github.com/docker/notary/client"
|
||||
"github.com/docker/notary/passphrase"
|
||||
"github.com/docker/notary/trustmanager"
|
||||
"github.com/docker/notary/trustpinning"
|
||||
"github.com/docker/notary/tuf/data"
|
||||
"github.com/docker/notary/tuf/signed"
|
||||
"github.com/docker/notary/tuf/store"
|
||||
"github.com/spf13/pflag"
|
||||
)
|
||||
|
||||
var (
|
||||
releasesRole = path.Join(data.CanonicalTargetsRole, "releases")
|
||||
// TODO: make this not global
|
||||
untrusted bool
|
||||
)
|
||||
|
||||
|
|
@ -70,529 +37,3 @@ func setupTrustedFlag(verify bool) (bool, string) {
|
|||
func IsTrusted() bool {
|
||||
return !untrusted
|
||||
}
|
||||
|
||||
type target struct {
|
||||
reference registry.Reference
|
||||
digest digest.Digest
|
||||
size int64
|
||||
}
|
||||
|
||||
func (cli *DockerCli) trustDirectory() string {
|
||||
return filepath.Join(cliconfig.ConfigDir(), "trust")
|
||||
}
|
||||
|
||||
// certificateDirectory returns the directory containing
|
||||
// TLS certificates for the given server. An error is
|
||||
// returned if there was an error parsing the server string.
|
||||
func (cli *DockerCli) certificateDirectory(server string) (string, error) {
|
||||
u, err := url.Parse(server)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return filepath.Join(cliconfig.ConfigDir(), "tls", u.Host), nil
|
||||
}
|
||||
|
||||
func trustServer(index *registrytypes.IndexInfo) (string, error) {
|
||||
if s := os.Getenv("DOCKER_CONTENT_TRUST_SERVER"); s != "" {
|
||||
urlObj, err := url.Parse(s)
|
||||
if err != nil || urlObj.Scheme != "https" {
|
||||
return "", fmt.Errorf("valid https URL required for trust server, got %s", s)
|
||||
}
|
||||
|
||||
return s, nil
|
||||
}
|
||||
if index.Official {
|
||||
return registry.NotaryServer, nil
|
||||
}
|
||||
return "https://" + index.Name, nil
|
||||
}
|
||||
|
||||
type simpleCredentialStore struct {
|
||||
auth types.AuthConfig
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) Basic(u *url.URL) (string, string) {
|
||||
return scs.auth.Username, scs.auth.Password
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) RefreshToken(u *url.URL, service string) string {
|
||||
return scs.auth.IdentityToken
|
||||
}
|
||||
|
||||
func (scs simpleCredentialStore) SetRefreshToken(*url.URL, string, string) {
|
||||
}
|
||||
|
||||
// getNotaryRepository returns a NotaryRepository which stores all the
|
||||
// information needed to operate on a notary repository.
|
||||
// It creates an HTTP transport providing authentication support.
|
||||
func (cli *DockerCli) getNotaryRepository(repoInfo *registry.RepositoryInfo, authConfig types.AuthConfig, actions ...string) (*client.NotaryRepository, error) {
|
||||
server, err := trustServer(repoInfo.Index)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var cfg = tlsconfig.ClientDefault()
|
||||
cfg.InsecureSkipVerify = !repoInfo.Index.Secure
|
||||
|
||||
// Get certificate base directory
|
||||
certDir, err := cli.certificateDirectory(server)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
logrus.Debugf("reading certificate directory: %s", certDir)
|
||||
|
||||
if err := registry.ReadCertsDirectory(cfg, certDir); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
base := &http.Transport{
|
||||
Proxy: http.ProxyFromEnvironment,
|
||||
Dial: (&net.Dialer{
|
||||
Timeout: 30 * time.Second,
|
||||
KeepAlive: 30 * time.Second,
|
||||
DualStack: true,
|
||||
}).Dial,
|
||||
TLSHandshakeTimeout: 10 * time.Second,
|
||||
TLSClientConfig: cfg,
|
||||
DisableKeepAlives: true,
|
||||
}
|
||||
|
||||
// Skip configuration headers since request is not going to Docker daemon
|
||||
modifiers := registry.DockerHeaders(clientUserAgent(), http.Header{})
|
||||
authTransport := transport.NewTransport(base, modifiers...)
|
||||
pingClient := &http.Client{
|
||||
Transport: authTransport,
|
||||
Timeout: 5 * time.Second,
|
||||
}
|
||||
endpointStr := server + "/v2/"
|
||||
req, err := http.NewRequest("GET", endpointStr, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
challengeManager := auth.NewSimpleChallengeManager()
|
||||
|
||||
resp, err := pingClient.Do(req)
|
||||
if err != nil {
|
||||
// Ignore error on ping to operate in offline mode
|
||||
logrus.Debugf("Error pinging notary server %q: %s", endpointStr, err)
|
||||
} else {
|
||||
defer resp.Body.Close()
|
||||
|
||||
// Add response to the challenge manager to parse out
|
||||
// authentication header and register authentication method
|
||||
if err := challengeManager.AddResponse(resp); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
creds := simpleCredentialStore{auth: authConfig}
|
||||
tokenHandler := auth.NewTokenHandler(authTransport, creds, repoInfo.FullName(), actions...)
|
||||
basicHandler := auth.NewBasicHandler(creds)
|
||||
modifiers = append(modifiers, transport.RequestModifier(auth.NewAuthorizer(challengeManager, tokenHandler, basicHandler)))
|
||||
tr := transport.NewTransport(base, modifiers...)
|
||||
|
||||
return client.NewNotaryRepository(
|
||||
cli.trustDirectory(), repoInfo.FullName(), server, tr, cli.getPassphraseRetriever(),
|
||||
trustpinning.TrustPinConfig{})
|
||||
}
|
||||
|
||||
func convertTarget(t client.Target) (target, error) {
|
||||
h, ok := t.Hashes["sha256"]
|
||||
if !ok {
|
||||
return target{}, errors.New("no valid hash, expecting sha256")
|
||||
}
|
||||
return target{
|
||||
reference: registry.ParseReference(t.Name),
|
||||
digest: digest.NewDigestFromHex("sha256", hex.EncodeToString(h)),
|
||||
size: t.Length,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (cli *DockerCli) getPassphraseRetriever() passphrase.Retriever {
|
||||
aliasMap := map[string]string{
|
||||
"root": "root",
|
||||
"snapshot": "repository",
|
||||
"targets": "repository",
|
||||
"default": "repository",
|
||||
}
|
||||
baseRetriever := passphrase.PromptRetrieverWithInOut(cli.in, cli.out, aliasMap)
|
||||
env := map[string]string{
|
||||
"root": os.Getenv("DOCKER_CONTENT_TRUST_ROOT_PASSPHRASE"),
|
||||
"snapshot": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
"targets": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
"default": os.Getenv("DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE"),
|
||||
}
|
||||
|
||||
return func(keyName string, alias string, createNew bool, numAttempts int) (string, bool, error) {
|
||||
if v := env[alias]; v != "" {
|
||||
return v, numAttempts > 1, nil
|
||||
}
|
||||
// For non-root roles, we can also try the "default" alias if it is specified
|
||||
if v := env["default"]; v != "" && alias != data.CanonicalRootRole {
|
||||
return v, numAttempts > 1, nil
|
||||
}
|
||||
return baseRetriever(keyName, alias, createNew, numAttempts)
|
||||
}
|
||||
}
|
||||
|
||||
// TrustedReference returns the canonical trusted reference for an image reference
|
||||
func (cli *DockerCli) TrustedReference(ctx context.Context, ref reference.NamedTagged) (reference.Canonical, error) {
|
||||
repoInfo, err := registry.ParseRepositoryInfo(ref)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Resolve the Auth config relevant for this server
|
||||
authConfig := cli.ResolveAuthConfig(ctx, repoInfo.Index)
|
||||
|
||||
notaryRepo, err := cli.getNotaryRepository(repoInfo, authConfig, "pull")
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.out, "Error establishing connection to trust repository: %s\n", err)
|
||||
return nil, err
|
||||
}
|
||||
|
||||
t, err := notaryRepo.GetTargetByName(ref.Tag(), releasesRole, data.CanonicalTargetsRole)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Only list tags in the top level targets role or the releases delegation role - ignore
|
||||
// all other delegation roles
|
||||
if t.Role != releasesRole && t.Role != data.CanonicalTargetsRole {
|
||||
return nil, notaryError(repoInfo.FullName(), fmt.Errorf("No trust data for %s", ref.Tag()))
|
||||
}
|
||||
r, err := convertTarget(t.Target)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
|
||||
}
|
||||
|
||||
return reference.WithDigest(ref, r.digest)
|
||||
}
|
||||
|
||||
// TagTrusted tags a trusted ref
|
||||
func (cli *DockerCli) TagTrusted(ctx context.Context, trustedRef reference.Canonical, ref reference.NamedTagged) error {
|
||||
fmt.Fprintf(cli.out, "Tagging %s as %s\n", trustedRef.String(), ref.String())
|
||||
|
||||
return cli.client.ImageTag(ctx, trustedRef.String(), ref.String())
|
||||
}
|
||||
|
||||
func notaryError(repoName string, err error) error {
|
||||
switch err.(type) {
|
||||
case *json.SyntaxError:
|
||||
logrus.Debugf("Notary syntax error: %s", err)
|
||||
return fmt.Errorf("Error: no trust data available for remote repository %s. Try running notary server and setting DOCKER_CONTENT_TRUST_SERVER to its HTTPS address?", repoName)
|
||||
case signed.ErrExpired:
|
||||
return fmt.Errorf("Error: remote repository %s out-of-date: %v", repoName, err)
|
||||
case trustmanager.ErrKeyNotFound:
|
||||
return fmt.Errorf("Error: signing keys for remote repository %s not found: %v", repoName, err)
|
||||
case *net.OpError:
|
||||
return fmt.Errorf("Error: error contacting notary server: %v", err)
|
||||
case store.ErrMetaNotFound:
|
||||
return fmt.Errorf("Error: trust data missing for remote repository %s or remote repository not found: %v", repoName, err)
|
||||
case signed.ErrInvalidKeyType:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data mismatch for remote repository %s: %v", repoName, err)
|
||||
case signed.ErrNoKeys:
|
||||
return fmt.Errorf("Error: could not find signing keys for remote repository %s, or could not decrypt signing key: %v", repoName, err)
|
||||
case signed.ErrLowVersion:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data version is lower than expected for remote repository %s: %v", repoName, err)
|
||||
case signed.ErrRoleThreshold:
|
||||
return fmt.Errorf("Warning: potential malicious behavior - trust data has insufficient signatures for remote repository %s: %v", repoName, err)
|
||||
case client.ErrRepositoryNotExist:
|
||||
return fmt.Errorf("Error: remote trust data does not exist for %s: %v", repoName, err)
|
||||
case signed.ErrInsufficientSignatures:
|
||||
return fmt.Errorf("Error: could not produce valid signature for %s. If Yubikey was used, was touch input provided?: %v", repoName, err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// TrustedPull handles content trust pulling of an image
|
||||
func (cli *DockerCli) TrustedPull(ctx context.Context, repoInfo *registry.RepositoryInfo, ref registry.Reference, authConfig types.AuthConfig, requestPrivilege types.RequestPrivilegeFunc) error {
|
||||
var refs []target
|
||||
|
||||
notaryRepo, err := cli.getNotaryRepository(repoInfo, authConfig, "pull")
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.out, "Error establishing connection to trust repository: %s\n", err)
|
||||
return err
|
||||
}
|
||||
|
||||
if ref.String() == "" {
|
||||
// List all targets
|
||||
targets, err := notaryRepo.ListTargets(releasesRole, data.CanonicalTargetsRole)
|
||||
if err != nil {
|
||||
return notaryError(repoInfo.FullName(), err)
|
||||
}
|
||||
for _, tgt := range targets {
|
||||
t, err := convertTarget(tgt.Target)
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.out, "Skipping target for %q\n", repoInfo.Name())
|
||||
continue
|
||||
}
|
||||
// Only list tags in the top level targets role or the releases delegation role - ignore
|
||||
// all other delegation roles
|
||||
if tgt.Role != releasesRole && tgt.Role != data.CanonicalTargetsRole {
|
||||
continue
|
||||
}
|
||||
refs = append(refs, t)
|
||||
}
|
||||
if len(refs) == 0 {
|
||||
return notaryError(repoInfo.FullName(), fmt.Errorf("No trusted tags for %s", repoInfo.FullName()))
|
||||
}
|
||||
} else {
|
||||
t, err := notaryRepo.GetTargetByName(ref.String(), releasesRole, data.CanonicalTargetsRole)
|
||||
if err != nil {
|
||||
return notaryError(repoInfo.FullName(), err)
|
||||
}
|
||||
// Only get the tag if it's in the top level targets role or the releases delegation role
|
||||
// ignore it if it's in any other delegation roles
|
||||
if t.Role != releasesRole && t.Role != data.CanonicalTargetsRole {
|
||||
return notaryError(repoInfo.FullName(), fmt.Errorf("No trust data for %s", ref.String()))
|
||||
}
|
||||
|
||||
logrus.Debugf("retrieving target for %s role\n", t.Role)
|
||||
r, err := convertTarget(t.Target)
|
||||
if err != nil {
|
||||
return err
|
||||
|
||||
}
|
||||
refs = append(refs, r)
|
||||
}
|
||||
|
||||
for i, r := range refs {
|
||||
displayTag := r.reference.String()
|
||||
if displayTag != "" {
|
||||
displayTag = ":" + displayTag
|
||||
}
|
||||
fmt.Fprintf(cli.out, "Pull (%d of %d): %s%s@%s\n", i+1, len(refs), repoInfo.Name(), displayTag, r.digest)
|
||||
|
||||
ref, err := reference.WithDigest(repoInfo, r.digest)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := cli.ImagePullPrivileged(ctx, authConfig, ref.String(), requestPrivilege, false); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// If reference is not trusted, tag by trusted reference
|
||||
if !r.reference.HasDigest() {
|
||||
tagged, err := reference.WithTag(repoInfo, r.reference.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
trustedRef, err := reference.WithDigest(repoInfo, r.digest)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := cli.TagTrusted(ctx, trustedRef, tagged); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// TrustedPush handles content trust pushing of an image
|
||||
func (cli *DockerCli) TrustedPush(ctx context.Context, repoInfo *registry.RepositoryInfo, ref reference.Named, authConfig types.AuthConfig, requestPrivilege types.RequestPrivilegeFunc) error {
|
||||
responseBody, err := cli.ImagePushPrivileged(ctx, authConfig, ref.String(), requestPrivilege)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
defer responseBody.Close()
|
||||
|
||||
// If it is a trusted push we would like to find the target entry which match the
|
||||
// tag provided in the function and then do an AddTarget later.
|
||||
target := &client.Target{}
|
||||
// Count the times of calling for handleTarget,
|
||||
// if it is called more that once, that should be considered an error in a trusted push.
|
||||
cnt := 0
|
||||
handleTarget := func(aux *json.RawMessage) {
|
||||
cnt++
|
||||
if cnt > 1 {
|
||||
// handleTarget should only be called one. This will be treated as an error.
|
||||
return
|
||||
}
|
||||
|
||||
var pushResult distribution.PushResult
|
||||
err := json.Unmarshal(*aux, &pushResult)
|
||||
if err == nil && pushResult.Tag != "" && pushResult.Digest.Validate() == nil {
|
||||
h, err := hex.DecodeString(pushResult.Digest.Hex())
|
||||
if err != nil {
|
||||
target = nil
|
||||
return
|
||||
}
|
||||
target.Name = registry.ParseReference(pushResult.Tag).String()
|
||||
target.Hashes = data.Hashes{string(pushResult.Digest.Algorithm()): h}
|
||||
target.Length = int64(pushResult.Size)
|
||||
}
|
||||
}
|
||||
|
||||
var tag string
|
||||
switch x := ref.(type) {
|
||||
case reference.Canonical:
|
||||
return errors.New("cannot push a digest reference")
|
||||
case reference.NamedTagged:
|
||||
tag = x.Tag()
|
||||
}
|
||||
|
||||
// We want trust signatures to always take an explicit tag,
|
||||
// otherwise it will act as an untrusted push.
|
||||
if tag == "" {
|
||||
if err = jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), nil); err != nil {
|
||||
return err
|
||||
}
|
||||
fmt.Fprintln(cli.out, "No tag specified, skipping trust metadata push")
|
||||
return nil
|
||||
}
|
||||
|
||||
if err = jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), handleTarget); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if cnt > 1 {
|
||||
return fmt.Errorf("internal error: only one call to handleTarget expected")
|
||||
}
|
||||
|
||||
if target == nil {
|
||||
fmt.Fprintln(cli.out, "No targets found, please provide a specific tag in order to sign it")
|
||||
return nil
|
||||
}
|
||||
|
||||
fmt.Fprintln(cli.out, "Signing and pushing trust metadata")
|
||||
|
||||
repo, err := cli.getNotaryRepository(repoInfo, authConfig, "push", "pull")
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.out, "Error establishing connection to notary repository: %s\n", err)
|
||||
return err
|
||||
}
|
||||
|
||||
// get the latest repository metadata so we can figure out which roles to sign
|
||||
err = repo.Update(false)
|
||||
|
||||
switch err.(type) {
|
||||
case client.ErrRepoNotInitialized, client.ErrRepositoryNotExist:
|
||||
keys := repo.CryptoService.ListKeys(data.CanonicalRootRole)
|
||||
var rootKeyID string
|
||||
// always select the first root key
|
||||
if len(keys) > 0 {
|
||||
sort.Strings(keys)
|
||||
rootKeyID = keys[0]
|
||||
} else {
|
||||
rootPublicKey, err := repo.CryptoService.Create(data.CanonicalRootRole, "", data.ECDSAKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
rootKeyID = rootPublicKey.ID()
|
||||
}
|
||||
|
||||
// Initialize the notary repository with a remotely managed snapshot key
|
||||
if err := repo.Initialize(rootKeyID, data.CanonicalSnapshotRole); err != nil {
|
||||
return notaryError(repoInfo.FullName(), err)
|
||||
}
|
||||
fmt.Fprintf(cli.out, "Finished initializing %q\n", repoInfo.FullName())
|
||||
err = repo.AddTarget(target, data.CanonicalTargetsRole)
|
||||
case nil:
|
||||
// already initialized and we have successfully downloaded the latest metadata
|
||||
err = cli.addTargetToAllSignableRoles(repo, target)
|
||||
default:
|
||||
return notaryError(repoInfo.FullName(), err)
|
||||
}
|
||||
|
||||
if err == nil {
|
||||
err = repo.Publish()
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
fmt.Fprintf(cli.out, "Failed to sign %q:%s - %s\n", repoInfo.FullName(), tag, err.Error())
|
||||
return notaryError(repoInfo.FullName(), err)
|
||||
}
|
||||
|
||||
fmt.Fprintf(cli.out, "Successfully signed %q:%s\n", repoInfo.FullName(), tag)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Attempt to add the image target to all the top level delegation roles we can
|
||||
// (based on whether we have the signing key and whether the role's path allows
|
||||
// us to).
|
||||
// If there are no delegation roles, we add to the targets role.
|
||||
func (cli *DockerCli) addTargetToAllSignableRoles(repo *client.NotaryRepository, target *client.Target) error {
|
||||
var signableRoles []string
|
||||
|
||||
// translate the full key names, which includes the GUN, into just the key IDs
|
||||
allCanonicalKeyIDs := make(map[string]struct{})
|
||||
for fullKeyID := range repo.CryptoService.ListAllKeys() {
|
||||
allCanonicalKeyIDs[path.Base(fullKeyID)] = struct{}{}
|
||||
}
|
||||
|
||||
allDelegationRoles, err := repo.GetDelegationRoles()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// if there are no delegation roles, then just try to sign it into the targets role
|
||||
if len(allDelegationRoles) == 0 {
|
||||
return repo.AddTarget(target, data.CanonicalTargetsRole)
|
||||
}
|
||||
|
||||
// there are delegation roles, find every delegation role we have a key for, and
|
||||
// attempt to sign into into all those roles.
|
||||
for _, delegationRole := range allDelegationRoles {
|
||||
// We do not support signing any delegation role that isn't a direct child of the targets role.
|
||||
// Also don't bother checking the keys if we can't add the target
|
||||
// to this role due to path restrictions
|
||||
if path.Dir(delegationRole.Name) != data.CanonicalTargetsRole || !delegationRole.CheckPaths(target.Name) {
|
||||
continue
|
||||
}
|
||||
|
||||
for _, canonicalKeyID := range delegationRole.KeyIDs {
|
||||
if _, ok := allCanonicalKeyIDs[canonicalKeyID]; ok {
|
||||
signableRoles = append(signableRoles, delegationRole.Name)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if len(signableRoles) == 0 {
|
||||
return fmt.Errorf("no valid signing keys for delegation roles")
|
||||
}
|
||||
|
||||
return repo.AddTarget(target, signableRoles...)
|
||||
}
|
||||
|
||||
// ImagePullPrivileged pulls the image and displays it to the output
|
||||
func (cli *DockerCli) ImagePullPrivileged(ctx context.Context, authConfig types.AuthConfig, ref string, requestPrivilege types.RequestPrivilegeFunc, all bool) error {
|
||||
|
||||
encodedAuth, err := EncodeAuthToBase64(authConfig)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
options := types.ImagePullOptions{
|
||||
RegistryAuth: encodedAuth,
|
||||
PrivilegeFunc: requestPrivilege,
|
||||
All: all,
|
||||
}
|
||||
|
||||
responseBody, err := cli.client.ImagePull(ctx, ref, options)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer responseBody.Close()
|
||||
|
||||
return jsonmessage.DisplayJSONMessagesToStream(responseBody, cli.Out(), nil)
|
||||
}
|
||||
|
||||
// ImagePushPrivileged push the image
|
||||
func (cli *DockerCli) ImagePushPrivileged(ctx context.Context, authConfig types.AuthConfig, ref string, requestPrivilege types.RequestPrivilegeFunc) (io.ReadCloser, error) {
|
||||
encodedAuth, err := EncodeAuthToBase64(authConfig)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
options := types.ImagePushOptions{
|
||||
RegistryAuth: encodedAuth,
|
||||
PrivilegeFunc: requestPrivilege,
|
||||
}
|
||||
|
||||
return cli.client.ImagePush(ctx, ref, options)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue