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8 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
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2e8377a708 | ||
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a76cfb7dc7 | ||
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409dce8a89 | ||
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5b14746045 | ||
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a3d2e8323a | ||
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2be4deb980 | ||
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5f71547262 | ||
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6c791a0559 |
@@ -1,6 +1,10 @@
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skopeo [](https://travis-ci.org/projectatomic/skopeo)
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=
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<img src="https://cdn.rawgit.com/projectatomic/skopeo/master/docs/skopeo.svg" width="250">
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----
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`skopeo` is a command line utility that performs various operations on container images and image repositories. Skopeo works with API V2 registries such as Docker registries, the Atomic registry, private registries, local directories and local OCI-layout directories. Skopeo does not require a daemon to be running to perform these operations which consist of:
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* Inspecting an image showing its properties including its layers.
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@@ -7,9 +7,11 @@ import (
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"strings"
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"github.com/containers/image/copy"
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"github.com/containers/image/manifest"
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"github.com/containers/image/transports"
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"github.com/containers/image/transports/alltransports"
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"github.com/containers/image/types"
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imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/urfave/cli"
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)
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@@ -55,12 +57,27 @@ func copyHandler(context *cli.Context) error {
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return err
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}
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var manifestType string
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if context.IsSet("format") {
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switch context.String("format") {
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case "oci":
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manifestType = imgspecv1.MediaTypeImageManifest
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case "v2s1":
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manifestType = manifest.DockerV2Schema1SignedMediaType
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case "v2s2":
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manifestType = manifest.DockerV2Schema2MediaType
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default:
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return fmt.Errorf("unknown format %q. Choose on of the supported formats: 'oci', 'v2s1', or 'v2s2'", context.String("format"))
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}
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}
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return copy.Image(policyContext, destRef, srcRef, ©.Options{
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RemoveSignatures: removeSignatures,
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SignBy: signBy,
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ReportWriter: os.Stdout,
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SourceCtx: sourceCtx,
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DestinationCtx: destinationCtx,
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RemoveSignatures: removeSignatures,
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SignBy: signBy,
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ReportWriter: os.Stdout,
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SourceCtx: sourceCtx,
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DestinationCtx: destinationCtx,
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ForceManifestMIMEType: manifestType,
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})
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}
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@@ -131,5 +148,13 @@ var copyCmd = cli.Command{
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Value: "",
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Usage: "`DIRECTORY` to use to store retrieved blobs (OCI layout destinations only)",
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},
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cli.StringFlag{
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Name: "format, f",
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Usage: "`MANIFEST TYPE` (oci, v2s1, or v2s2) to use when saving image to directory using the 'dir:' transport (default is manifest type of source)",
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},
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cli.BoolFlag{
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Name: "dest-compress",
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Usage: "Compress tarball image layers when saving to directory using the 'dir' transport. (default is same compression type as source)",
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},
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},
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}
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@@ -18,6 +18,7 @@ func contextFromGlobalOptions(c *cli.Context, flagPrefix string) (*types.SystemC
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DockerInsecureSkipTLSVerify: !c.GlobalBoolT("tls-verify"),
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OSTreeTmpDirPath: c.String(flagPrefix + "ostree-tmp-dir"),
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OCISharedBlobDirPath: c.String(flagPrefix + "shared-blob-dir"),
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DirForceCompress: c.Bool(flagPrefix + "compress"),
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}
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if c.IsSet(flagPrefix + "tls-verify") {
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ctx.DockerInsecureSkipTLSVerify = !c.BoolT(flagPrefix + "tls-verify")
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@@ -20,20 +20,24 @@ _complete_() {
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}
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_skopeo_copy() {
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local options_with_args="
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--sign-by
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--src-creds --screds
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--src-cert-dir
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--src-tls-verify
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--dest-creds --dcreds
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--dest-cert-dir
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--dest-ostree-tmp-dir
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--dest-tls-verify
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"
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local boolean_options="
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--remove-signatures
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"
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_complete_ "$options_with_args" "$boolean_options"
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local options_with_args="
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--format -f
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--sign-by
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--src-creds --screds
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--src-cert-dir
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--src-tls-verify
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--dest-creds --dcreds
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--dest-cert-dir
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--dest-ostree-tmp-dir
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--dest-tls-verify
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"
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local boolean_options="
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--dest-compress
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--remove-signatures
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"
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_complete_ "$options_with_args" "$boolean_options"
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}
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_skopeo_inspect() {
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@@ -60,12 +60,16 @@ Uses the system's trust policy to validate images, rejects images not trusted by
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_destination-image_ use the "image name" format described above
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**--format, -f** _manifest-type_ Manifest type (oci, v2s1, or v2s2) to use when saving image to directory using the 'dir:' transport (default is manifest type of source)
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**--remove-signatures** do not copy signatures, if any, from _source-image_. Necessary when copying a signed image to a destination which does not support signatures.
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**--sign-by=**_key-id_ add a signature using that key ID for an image name corresponding to _destination-image_
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**--src-creds** _username[:password]_ for accessing the source registry
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**--dest-compress** _bool-value_ Compress tarball image layers when saving to directory using the 'dir' transport. (default is same compression type as source)
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**--dest-creds** _username[:password]_ for accessing the destination registry
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**--src-cert-dir** _path_ Use certificates at _path_ (*.crt, *.cert, *.key) to connect to the source registry
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546
docs/skopeo.svg
Normal file
546
docs/skopeo.svg
Normal file
@@ -0,0 +1,546 @@
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@@ -15,6 +15,7 @@ import (
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"github.com/go-check/check"
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"github.com/opencontainers/go-digest"
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imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
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)
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@@ -591,6 +592,32 @@ func (s *CopySuite) TestCopySchemaConversion(c *check.C) {
|
||||
s.testCopySchemaConversionRegistries(c, "docker://"+v2s1DockerRegistryURL+"/schema1", "docker://"+v2DockerRegistryURL+"/schema2")
|
||||
}
|
||||
|
||||
func (s *CopySuite) TestCopyManifestConversion(c *check.C) {
|
||||
topDir, err := ioutil.TempDir("", "manifest-conversion")
|
||||
c.Assert(err, check.IsNil)
|
||||
defer os.RemoveAll(topDir)
|
||||
srcDir := filepath.Join(topDir, "source")
|
||||
destDir1 := filepath.Join(topDir, "dest1")
|
||||
destDir2 := filepath.Join(topDir, "dest2")
|
||||
|
||||
// oci to v2s1 and vice-versa not supported yet
|
||||
// get v2s2 manifest type
|
||||
assertSkopeoSucceeds(c, "", "copy", "docker://busybox", "dir:"+srcDir)
|
||||
verifyManifestMIMEType(c, srcDir, manifest.DockerV2Schema2MediaType)
|
||||
// convert from v2s2 to oci
|
||||
assertSkopeoSucceeds(c, "", "copy", "--format=oci", "dir:"+srcDir, "dir:"+destDir1)
|
||||
verifyManifestMIMEType(c, destDir1, imgspecv1.MediaTypeImageManifest)
|
||||
// convert from oci to v2s2
|
||||
assertSkopeoSucceeds(c, "", "copy", "--format=v2s2", "dir:"+destDir1, "dir:"+destDir2)
|
||||
verifyManifestMIMEType(c, destDir2, manifest.DockerV2Schema2MediaType)
|
||||
// convert from v2s2 to v2s1
|
||||
assertSkopeoSucceeds(c, "", "copy", "--format=v2s1", "dir:"+srcDir, "dir:"+destDir1)
|
||||
verifyManifestMIMEType(c, destDir1, manifest.DockerV2Schema1SignedMediaType)
|
||||
// convert from v2s1 to v2s2
|
||||
assertSkopeoSucceeds(c, "", "copy", "--format=v2s2", "dir:"+destDir1, "dir:"+destDir2)
|
||||
verifyManifestMIMEType(c, destDir2, manifest.DockerV2Schema2MediaType)
|
||||
}
|
||||
|
||||
func (s *CopySuite) testCopySchemaConversionRegistries(c *check.C, schema1Registry, schema2Registry string) {
|
||||
topDir, err := ioutil.TempDir("", "schema-conversion")
|
||||
c.Assert(err, check.IsNil)
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
github.com/urfave/cli v1.17.0
|
||||
github.com/containers/image master
|
||||
github.com/containers/image f950aa3529148eb0dea90888c24b6682da641b13
|
||||
github.com/opencontainers/go-digest master
|
||||
gopkg.in/cheggaaa/pb.v1 ad4efe000aa550bb54918c06ebbadc0ff17687b9 https://github.com/cheggaaa/pb
|
||||
github.com/containers/storage master
|
||||
|
||||
7
vendor/github.com/containers/image/copy/copy.go
generated
vendored
7
vendor/github.com/containers/image/copy/copy.go
generated
vendored
@@ -12,8 +12,6 @@ import (
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
pb "gopkg.in/cheggaaa/pb.v1"
|
||||
|
||||
"github.com/containers/image/image"
|
||||
"github.com/containers/image/pkg/compression"
|
||||
"github.com/containers/image/signature"
|
||||
@@ -22,6 +20,7 @@ import (
|
||||
"github.com/opencontainers/go-digest"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/sirupsen/logrus"
|
||||
pb "gopkg.in/cheggaaa/pb.v1"
|
||||
)
|
||||
|
||||
type digestingReader struct {
|
||||
@@ -95,6 +94,8 @@ type Options struct {
|
||||
DestinationCtx *types.SystemContext
|
||||
ProgressInterval time.Duration // time to wait between reports to signal the progress channel
|
||||
Progress chan types.ProgressProperties // Reported to when ProgressInterval has arrived for a single artifact+offset.
|
||||
// manifest MIME type of image set by user. "" is default and means use the autodetection to the the manifest MIME type
|
||||
ForceManifestMIMEType string
|
||||
}
|
||||
|
||||
// Image copies image from srcRef to destRef, using policyContext to validate
|
||||
@@ -193,7 +194,7 @@ func Image(policyContext *signature.PolicyContext, destRef, srcRef types.ImageRe
|
||||
|
||||
// We compute preferredManifestMIMEType only to show it in error messages.
|
||||
// Without having to add this context in an error message, we would be happy enough to know only that no conversion is needed.
|
||||
preferredManifestMIMEType, otherManifestMIMETypeCandidates, err := determineManifestConversion(&manifestUpdates, src, dest.SupportedManifestMIMETypes(), canModifyManifest)
|
||||
preferredManifestMIMEType, otherManifestMIMETypeCandidates, err := determineManifestConversion(&manifestUpdates, src, dest.SupportedManifestMIMETypes(), canModifyManifest, options.ForceManifestMIMEType)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
6
vendor/github.com/containers/image/copy/manifest.go
generated
vendored
6
vendor/github.com/containers/image/copy/manifest.go
generated
vendored
@@ -41,12 +41,16 @@ func (os *orderedSet) append(s string) {
|
||||
// Note that the conversion will only happen later, through src.UpdatedImage
|
||||
// Returns the preferred manifest MIME type (whether we are converting to it or using it unmodified),
|
||||
// and a list of other possible alternatives, in order.
|
||||
func determineManifestConversion(manifestUpdates *types.ManifestUpdateOptions, src types.Image, destSupportedManifestMIMETypes []string, canModifyManifest bool) (string, []string, error) {
|
||||
func determineManifestConversion(manifestUpdates *types.ManifestUpdateOptions, src types.Image, destSupportedManifestMIMETypes []string, canModifyManifest bool, forceManifestMIMEType string) (string, []string, error) {
|
||||
_, srcType, err := src.Manifest()
|
||||
if err != nil { // This should have been cached?!
|
||||
return "", nil, errors.Wrap(err, "Error reading manifest")
|
||||
}
|
||||
|
||||
if forceManifestMIMEType != "" {
|
||||
destSupportedManifestMIMETypes = []string{forceManifestMIMEType}
|
||||
}
|
||||
|
||||
if len(destSupportedManifestMIMETypes) == 0 {
|
||||
return srcType, []string{}, nil // Anything goes; just use the original as is, do not try any conversions.
|
||||
}
|
||||
|
||||
104
vendor/github.com/containers/image/directory/directory_dest.go
generated
vendored
104
vendor/github.com/containers/image/directory/directory_dest.go
generated
vendored
@@ -4,19 +4,77 @@ import (
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"github.com/containers/image/types"
|
||||
"github.com/opencontainers/go-digest"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
const version = "Directory Transport Version: 1.0\n"
|
||||
|
||||
// ErrNotContainerImageDir indicates that the directory doesn't match the expected contents of a directory created
|
||||
// using the 'dir' transport
|
||||
var ErrNotContainerImageDir = errors.New("not a containers image directory, don't want to overwrite important data")
|
||||
|
||||
type dirImageDestination struct {
|
||||
ref dirReference
|
||||
ref dirReference
|
||||
compress bool
|
||||
}
|
||||
|
||||
// newImageDestination returns an ImageDestination for writing to an existing directory.
|
||||
func newImageDestination(ref dirReference) types.ImageDestination {
|
||||
return &dirImageDestination{ref}
|
||||
// newImageDestination returns an ImageDestination for writing to a directory.
|
||||
func newImageDestination(ref dirReference, compress bool) (types.ImageDestination, error) {
|
||||
d := &dirImageDestination{ref: ref, compress: compress}
|
||||
|
||||
// If directory exists check if it is empty
|
||||
// if not empty, check whether the contents match that of a container image directory and overwrite the contents
|
||||
// if the contents don't match throw an error
|
||||
dirExists, err := pathExists(d.ref.resolvedPath)
|
||||
if err != nil {
|
||||
return nil, errors.Wrapf(err, "error checking for path %q", d.ref.resolvedPath)
|
||||
}
|
||||
if dirExists {
|
||||
isEmpty, err := isDirEmpty(d.ref.resolvedPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if !isEmpty {
|
||||
versionExists, err := pathExists(d.ref.versionPath())
|
||||
if err != nil {
|
||||
return nil, errors.Wrapf(err, "error checking if path exists %q", d.ref.versionPath())
|
||||
}
|
||||
if versionExists {
|
||||
contents, err := ioutil.ReadFile(d.ref.versionPath())
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// check if contents of version file is what we expect it to be
|
||||
if string(contents) != version {
|
||||
return nil, ErrNotContainerImageDir
|
||||
}
|
||||
} else {
|
||||
return nil, ErrNotContainerImageDir
|
||||
}
|
||||
// delete directory contents so that only one image is in the directory at a time
|
||||
if err = removeDirContents(d.ref.resolvedPath); err != nil {
|
||||
return nil, errors.Wrapf(err, "error erasing contents in %q", d.ref.resolvedPath)
|
||||
}
|
||||
logrus.Debugf("overwriting existing container image directory %q", d.ref.resolvedPath)
|
||||
}
|
||||
} else {
|
||||
// create directory if it doesn't exist
|
||||
if err := os.MkdirAll(d.ref.resolvedPath, 0755); err != nil {
|
||||
return nil, errors.Wrapf(err, "unable to create directory %q", d.ref.resolvedPath)
|
||||
}
|
||||
}
|
||||
// create version file
|
||||
err = ioutil.WriteFile(d.ref.versionPath(), []byte(version), 0755)
|
||||
if err != nil {
|
||||
return nil, errors.Wrapf(err, "error creating version file %q", d.ref.versionPath())
|
||||
}
|
||||
return d, nil
|
||||
}
|
||||
|
||||
// Reference returns the reference used to set up this destination. Note that this should directly correspond to user's intent,
|
||||
@@ -42,7 +100,7 @@ func (d *dirImageDestination) SupportsSignatures() error {
|
||||
|
||||
// ShouldCompressLayers returns true iff it is desirable to compress layer blobs written to this destination.
|
||||
func (d *dirImageDestination) ShouldCompressLayers() bool {
|
||||
return false
|
||||
return d.compress
|
||||
}
|
||||
|
||||
// AcceptsForeignLayerURLs returns false iff foreign layers in manifest should be actually
|
||||
@@ -147,3 +205,39 @@ func (d *dirImageDestination) PutSignatures(signatures [][]byte) error {
|
||||
func (d *dirImageDestination) Commit() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// returns true if path exists
|
||||
func pathExists(path string) (bool, error) {
|
||||
_, err := os.Stat(path)
|
||||
if err == nil {
|
||||
return true, nil
|
||||
}
|
||||
if err != nil && os.IsNotExist(err) {
|
||||
return false, nil
|
||||
}
|
||||
return false, err
|
||||
}
|
||||
|
||||
// returns true if directory is empty
|
||||
func isDirEmpty(path string) (bool, error) {
|
||||
files, err := ioutil.ReadDir(path)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
return len(files) == 0, nil
|
||||
}
|
||||
|
||||
// deletes the contents of a directory
|
||||
func removeDirContents(path string) error {
|
||||
files, err := ioutil.ReadDir(path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, file := range files {
|
||||
if err := os.RemoveAll(filepath.Join(path, file.Name())); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
11
vendor/github.com/containers/image/directory/directory_transport.go
generated
vendored
11
vendor/github.com/containers/image/directory/directory_transport.go
generated
vendored
@@ -152,7 +152,11 @@ func (ref dirReference) NewImageSource(ctx *types.SystemContext) (types.ImageSou
|
||||
// NewImageDestination returns a types.ImageDestination for this reference.
|
||||
// The caller must call .Close() on the returned ImageDestination.
|
||||
func (ref dirReference) NewImageDestination(ctx *types.SystemContext) (types.ImageDestination, error) {
|
||||
return newImageDestination(ref), nil
|
||||
compress := false
|
||||
if ctx != nil {
|
||||
compress = ctx.DirForceCompress
|
||||
}
|
||||
return newImageDestination(ref, compress)
|
||||
}
|
||||
|
||||
// DeleteImage deletes the named image from the registry, if supported.
|
||||
@@ -175,3 +179,8 @@ func (ref dirReference) layerPath(digest digest.Digest) string {
|
||||
func (ref dirReference) signaturePath(index int) string {
|
||||
return filepath.Join(ref.path, fmt.Sprintf("signature-%d", index+1))
|
||||
}
|
||||
|
||||
// versionPath returns a path for the version file within a directory using our conventions.
|
||||
func (ref dirReference) versionPath() string {
|
||||
return filepath.Join(ref.path, "version")
|
||||
}
|
||||
|
||||
8
vendor/github.com/containers/image/docker/docker_image_dest.go
generated
vendored
8
vendor/github.com/containers/image/docker/docker_image_dest.go
generated
vendored
@@ -236,7 +236,7 @@ func (d *dockerImageDestination) PutManifest(m []byte) error {
|
||||
return err
|
||||
}
|
||||
defer res.Body.Close()
|
||||
if res.StatusCode != http.StatusCreated {
|
||||
if !successStatus(res.StatusCode) {
|
||||
err = errors.Wrapf(client.HandleErrorResponse(res), "Error uploading manifest to %s", path)
|
||||
if isManifestInvalidError(errors.Cause(err)) {
|
||||
err = types.ManifestTypeRejectedError{Err: err}
|
||||
@@ -246,6 +246,12 @@ func (d *dockerImageDestination) PutManifest(m []byte) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// successStatus returns true if the argument is a successful HTTP response
|
||||
// code (in the range 200 - 399 inclusive).
|
||||
func successStatus(status int) bool {
|
||||
return status >= 200 && status <= 399
|
||||
}
|
||||
|
||||
// isManifestInvalidError returns true iff err from client.HandleErrorReponse is a “manifest invalid” error.
|
||||
func isManifestInvalidError(err error) bool {
|
||||
errors, ok := err.(errcode.Errors)
|
||||
|
||||
4
vendor/github.com/containers/image/types/types.go
generated
vendored
4
vendor/github.com/containers/image/types/types.go
generated
vendored
@@ -349,6 +349,10 @@ type SystemContext struct {
|
||||
DockerDaemonHost string
|
||||
// Used to skip TLS verification, off by default. To take effect DockerDaemonCertPath needs to be specified as well.
|
||||
DockerDaemonInsecureSkipTLSVerify bool
|
||||
|
||||
// === dir.Transport overrides ===
|
||||
// DirForceCompress compresses the image layers if set to true
|
||||
DirForceCompress bool
|
||||
}
|
||||
|
||||
// ProgressProperties is used to pass information from the copy code to a monitor which
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
package version
|
||||
|
||||
// Version is the version of the build.
|
||||
const Version = "0.1.25"
|
||||
const Version = "0.1.26"
|
||||
|
||||
Reference in New Issue
Block a user