forked from TrueCloudLab/distribution
Stephen Day
commit
ef1c72b978
3 changed files with 206 additions and 14 deletions
141
docs/spec/api.md
141
docs/spec/api.md
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@ -175,7 +175,6 @@ identify a set of modifications.
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<li>Added error code for unsupported operations.</li>
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</ul>
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</dd>
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</dl>
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## Overview
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@ -727,7 +726,8 @@ delete may be issued with the following request format:
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DELETE /v2/<name>/blobs/<digest>
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If the blob exists and has been successfully deleted, the following response will be issued:
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If the blob exists and has been successfully deleted, the following response
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will be issued:
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202 Accepted
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Content-Length: None
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@ -735,6 +735,8 @@ If the blob exists and has been successfully deleted, the following response wil
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If the blob had already been deleted or did not exist, a `404 Not Found`
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response will be issued instead.
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If a layer is deleted which is referenced by a manifest in the registry,
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then the complete images will not be resolvable.
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#### Pushing an Image Manifest
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@ -1016,13 +1018,13 @@ A list of methods and URIs are covered in the table below:
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| PUT | `/v2/<name>/manifests/<reference>` | Manifest | Put the manifest identified by `name` and `reference` where `reference` can be a tag or digest. |
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| DELETE | `/v2/<name>/manifests/<reference>` | Manifest | Delete the manifest identified by `name` and `reference`. Note that a manifest can _only_ be deleted by `digest`. |
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| GET | `/v2/<name>/blobs/<digest>` | Blob | Retrieve the blob from the registry identified by `digest`. A `HEAD` request can also be issued to this endpoint to obtain resource information without receiving all data. |
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| DELETE | `/v2/<name>/blobs/<digest>` | Blob | Delete the blob identified by `name` and `digest` |
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| POST | `/v2/<name>/blobs/uploads/` | Initiate Blob Upload | Initiate a resumable blob upload. If successful, an upload location will be provided to complete the upload. Optionally, if the `digest` parameter is present, the request body will be used to complete the upload in a single request. |
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| GET | `/v2/<name>/blobs/uploads/<uuid>` | Blob Upload | Retrieve status of upload identified by `uuid`. The primary purpose of this endpoint is to resolve the current status of a resumable upload. |
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| PATCH | `/v2/<name>/blobs/uploads/<uuid>` | Blob Upload | Upload a chunk of data for the specified upload. |
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| PUT | `/v2/<name>/blobs/uploads/<uuid>` | Blob Upload | Complete the upload specified by `uuid`, optionally appending the body as the final chunk. |
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| DELETE | `/v2/<name>/blobs/uploads/<uuid>` | Blob Upload | Cancel outstanding upload processes, releasing associated resources. If this is not called, the unfinished uploads will eventually timeout. |
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| GET | `/v2/_catalog` | Catalog | Retrieve a sorted, json list of repositories available in the registry. |
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| DELETE | `/v2/<name>/blobs/<digest>` | Blob delete | Delete the blob identified by `name` and `digest`|
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The detail for each endpoint is covered in the following sections.
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@ -1374,7 +1376,7 @@ The error codes that may be included in the response body are enumerated below:
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### Manifest
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Create, update and retrieve manifests.
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Create, update, delete and retrieve manifests.
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@ -1732,7 +1734,6 @@ The error codes that may be included in the response body are enumerated below:
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#### DELETE Manifest
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Delete the manifest identified by `name` and `reference`. Note that a manifest can _only_ be deleted by `digest`.
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@ -1874,7 +1875,7 @@ The error codes that may be included in the response body are enumerated below:
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### Blob
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Fetch the blob identified by `name` and `digest`. Used to fetch layers by digest.
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Operations on blobs identified by `name` and `digest`. Used to fetch or delete layers by digest.
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@ -2207,6 +2208,134 @@ The range specification cannot be satisfied for the requested content. This can
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#### DELETE Blob
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Delete the blob identified by `name` and `digest`
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```
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DELETE /v2/<name>/blobs/<digest>
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Host: <registry host>
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Authorization: <scheme> <token>
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```
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The following parameters should be specified on the request:
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|Name|Kind|Description|
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|----|----|-----------|
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|`Host`|header|Standard HTTP Host Header. Should be set to the registry host.|
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|`Authorization`|header|An RFC7235 compliant authorization header.|
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|`name`|path|Name of the target repository.|
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|`digest`|path|Digest of desired blob.|
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###### On Success: Accepted
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```
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202 Accepted
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Content-Length: 0
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Docker-Content-Digest: <digest>
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```
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The following headers will be returned with the response:
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|Name|Description|
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|----|-----------|
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|`Content-Length`|Zero|
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|`Docker-Content-Digest`|Digest of the targeted content for the request.|
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###### On Failure: Invalid Name or Digest
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```
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400 Bad Request
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```
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The error codes that may be included in the response body are enumerated below:
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|Code|Message|Description|
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|----|-------|-----------|
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| `DIGEST_INVALID` | provided digest did not match uploaded content | When a blob is uploaded, the registry will check that the content matches the digest provided by the client. The error may include a detail structure with the key "digest", including the invalid digest string. This error may also be returned when a manifest includes an invalid layer digest. |
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| `NAME_INVALID` | invalid repository name | Invalid repository name encountered either during manifest validation or any API operation. |
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###### On Failure: Not Found
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```
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404 Not Found
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Content-Type: application/json; charset=utf-8
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{
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"errors:" [
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{
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"code": <error code>,
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"message": "<error message>",
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"detail": ...
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},
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...
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]
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}
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```
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The blob, identified by `name` and `digest`, is unknown to the registry.
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The error codes that may be included in the response body are enumerated below:
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|Code|Message|Description|
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|----|-------|-----------|
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| `NAME_UNKNOWN` | repository name not known to registry | This is returned if the name used during an operation is unknown to the registry. |
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| `BLOB_UNKNOWN` | blob unknown to registry | This error may be returned when a blob is unknown to the registry in a specified repository. This can be returned with a standard get or if a manifest references an unknown layer during upload. |
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###### On Failure: Method Not Allowed
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```
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405 Method Not Allowed
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Content-Type: application/json; charset=utf-8
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{
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"errors:" [
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{
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"code": <error code>,
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"message": "<error message>",
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"detail": ...
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},
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...
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]
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}
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```
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Delete is not enabled on the registry
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The error codes that may be included in the response body are enumerated below:
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|Code|Message|Description|
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|----|-------|-----------|
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| `UNSUPPORTED` | The operation is unsupported. | The operation was unsupported due to a missing implementation or invalid set of parameters. |
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### Initiate Blob Upload
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@ -277,7 +277,7 @@ API. When this header is omitted, clients may fallback to an older API version.
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This API design is driven heavily by [content addressability](http://en.wikipedia.org/wiki/Content-addressable_storage).
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The core of this design is the concept of a content addressable identifier. It
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uniquely identifies content by taking a collision-resistent hash of the bytes.
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uniquely identifies content by taking a collision-resistant hash of the bytes.
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Such an identifier can be independently calculated and verified by selection
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of a common _algorithm_. If such an identifier can be communicated in a secure
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manner, one can retrieve the content from an insecure source, calculate it
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@ -791,7 +791,7 @@ Images are stored in collections, known as a _repository_, which is keyed by a
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contain several repositories. The list of available repositories is made
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available through the _catalog_.
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The catalog for a given registry can be retrived with the following request:
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The catalog for a given registry can be retrieved with the following request:
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```
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GET /v2/_catalog
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@ -875,7 +875,7 @@ To get the next result set, a client would issue the request as follows, using
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the URL encoded in the described `Link` header:
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```
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GET /v2/_catalog?n=<n from the request>&last=<last repostory value from previous response>
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GET /v2/_catalog?n=<n from the request>&last=<last repository value from previous response>
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```
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The above process should then be repeated until the `Link` header is no longer
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@ -519,7 +519,7 @@ var routeDescriptors = []RouteDescriptor{
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Name: RouteNameManifest,
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Path: "/v2/{name:" + RepositoryNameRegexp.String() + "}/manifests/{reference:" + TagNameRegexp.String() + "|" + digest.DigestRegexp.String() + "}",
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Entity: "Manifest",
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Description: "Create, update and retrieve manifests.",
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Description: "Create, update, delete and retrieve manifests.",
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Methods: []MethodDescriptor{
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{
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Method: "GET",
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@ -536,7 +536,7 @@ var routeDescriptors = []RouteDescriptor{
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},
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Successes: []ResponseDescriptor{
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{
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Description: "The manifest idenfied by `name` and `reference`. The contents can be used to identify and resolve resources required to run the specified image.",
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Description: "The manifest identified by `name` and `reference`. The contents can be used to identify and resolve resources required to run the specified image.",
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StatusCode: http.StatusOK,
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Headers: []ParameterDescriptor{
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digestHeader,
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@ -768,9 +768,8 @@ var routeDescriptors = []RouteDescriptor{
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Name: RouteNameBlob,
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Path: "/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/{digest:" + digest.DigestRegexp.String() + "}",
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Entity: "Blob",
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Description: "Fetch the blob identified by `name` and `digest`. Used to fetch layers by digest.",
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Description: "Operations on blobs identified by `name` and `digest`. Used to fetch or delete layers by digest.",
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Methods: []MethodDescriptor{
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{
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Method: "GET",
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Description: "Retrieve the blob from the registry identified by `digest`. A `HEAD` request can also be issued to this endpoint to obtain resource information without receiving all data.",
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@ -919,6 +918,70 @@ var routeDescriptors = []RouteDescriptor{
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},
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},
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},
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{
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Method: "DELETE",
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Description: "Delete the blob identified by `name` and `digest`",
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Requests: []RequestDescriptor{
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{
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Headers: []ParameterDescriptor{
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hostHeader,
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authHeader,
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},
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PathParameters: []ParameterDescriptor{
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nameParameterDescriptor,
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digestPathParameter,
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},
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Successes: []ResponseDescriptor{
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{
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StatusCode: http.StatusAccepted,
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Headers: []ParameterDescriptor{
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{
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Name: "Content-Length",
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Type: "integer",
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Description: "0",
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Format: "0",
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},
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digestHeader,
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},
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},
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},
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Failures: []ResponseDescriptor{
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{
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Name: "Invalid Name or Digest",
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StatusCode: http.StatusBadRequest,
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ErrorCodes: []errcode.ErrorCode{
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ErrorCodeDigestInvalid,
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ErrorCodeNameInvalid,
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},
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},
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{
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Description: "The blob, identified by `name` and `digest`, is unknown to the registry.",
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StatusCode: http.StatusNotFound,
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Body: BodyDescriptor{
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ContentType: "application/json; charset=utf-8",
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Format: errorsBody,
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},
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ErrorCodes: []errcode.ErrorCode{
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ErrorCodeNameUnknown,
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ErrorCodeBlobUnknown,
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},
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},
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{
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Description: "Delete is not enabled on the registry",
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StatusCode: http.StatusMethodNotAllowed,
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Body: BodyDescriptor{
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ContentType: "application/json; charset=utf-8",
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Format: errorsBody,
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},
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ErrorCodes: []errcode.ErrorCode{
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ErrorCodeUnsupported,
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},
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},
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},
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},
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},
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},
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// TODO(stevvooe): We may want to add a PUT request here to
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// kickoff an upload of a blob, integrated with the blob upload
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// API.
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@ -928,7 +991,7 @@ var routeDescriptors = []RouteDescriptor{
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{
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Name: RouteNameBlobUpload,
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Path: "/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/uploads/",
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Entity: "Intiate Blob Upload",
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Entity: "Initiate Blob Upload",
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Description: "Initiate a blob upload. This endpoint can be used to create resumable uploads or monolithic uploads.",
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Methods: []MethodDescriptor{
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{
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