Merge pull request #653 from pdevine/catalog-api
Catalog for V2 API Implementation
This commit is contained in:
Stephen Day
commit
76f29c2630
13 changed files with 1352 additions and 12 deletions
331
docs/spec/api.md
331
docs/spec/api.md
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@ -120,6 +120,16 @@ indicating what is different. Optionally, we may start marking parts of the
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specification to correspond with the versions enumerated here.
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specification to correspond with the versions enumerated here.
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<dl>
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<dl>
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<dt>2.0.4</dt>>
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<dd>
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<ul>
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<li>Added support for listing registry contents.</li>
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<li>Added pagination to tags API.</li>
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<li>Added common approach to support pagination.</li>
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</ul>
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</dd>
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<dt>2.0.3</dt>
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<dt>2.0.3</dt>
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<dd>
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<dd>
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<li>Allow repository name components to be one character.</li>
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<li>Allow repository name components to be one character.</li>
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@ -131,7 +141,6 @@ specification to correspond with the versions enumerated here.
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<li>Added section covering digest format.</li>
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<li>Added section covering digest format.</li>
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<li>Added more clarification that manifest cannot be deleted by tag.</li>
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<li>Added more clarification that manifest cannot be deleted by tag.</li>
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</dd>
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</dd>
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<dt>2.0.1</dt>
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<dt>2.0.1</dt>
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<dd>
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<dd>
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<ul>
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<ul>
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@ -745,7 +754,131 @@ each unknown blob. The response format is as follows:
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]
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]
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}
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}
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#### Listing Image Tags
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### Listing Repositories
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Images are stored in collections, known as a _repository_, which is keyed by a
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`name`, as seen throughout the API specification. A registry instance may
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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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```
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GET /v2/_catalog
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```
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The response will be in the following format:
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```
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200 OK
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Content-Type: application/json
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{
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"repositories": [
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<name>,
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...
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]
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}
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```
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Note that the contents of the response are specific to the registry
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implementation. Some registries may opt to provide a full catalog output,
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limit it based on the user's access level or omit upstream results, if
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providing mirroring functionality. Subsequently, the presence of a repository
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in the catalog listing only means that the registry *may* provide access to
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the repository at the time of the request. Conversely, a missing entry does
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*not* mean that the registry does not have the repository. More succinctly,
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the presence of a repository only guarantees that it is there but not that it
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is _not_ there.
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For registries with a large number of repositories, this response may be quite
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large. If such a response is expected, one should use pagination.
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#### Pagination
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Paginated catalog results can be retrieved by adding an `n` parameter to the
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request URL, declaring that the response should be limited to `n` results.
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Starting a paginated flow begins as follows:
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```
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GET /v2/_catalog?n=<integer>
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```
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The above specifies that a catalog response should be returned, from the start of
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the result set, ordered lexically, limiting the number of results to `n`. The
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response to such a request would look as follows:
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```
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200 OK
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Content-Type: application/json
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Link: <<url>?n=<n from the request>&last=<last repository in response>>; rel="next"
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{
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"repositories": [
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<name>,
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...
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]
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}
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```
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The above includes the _first_ `n` entries from the result set. To get the
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_next_ `n` entries, one can create a URL where the argument `last` has the
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value from `repositories[len(repositories)-1]`. If there are indeed more
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results, the URL for the next block is encoded in an
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[RFC5988](https://tools.ietf.org/html/rfc5988) `Link` header, as a "next"
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relation. The presence of the `Link` header communicates to the client that
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the entire result set has not been returned and another request must be
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issued. If the header is not present, the client can assume that all results
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have been recieved.
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> __NOTE:__ In the request template above, note that the brackets
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> are required. For example, if the url is
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> `http://example.com/v2/_catalog?n=20&last=b`, the value of the header would
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> be `<http://example.com/v2/_catalog?n=20&last=b>; rel="next"`. Please see
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> [RFC5988](https://tools.ietf.org/html/rfc5988) for details.
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Compliant client implementations should always use the `Link` header
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value when proceeding through results linearly. The client may construct URLs
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to skip forward in the catalog.
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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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```
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The above process should then be repeated until the `Link` header is no longer
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set.
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The catalog result set is represented abstractly as a lexically sorted list,
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where the position in that list can be specified by the query term `last`. The
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entries in the response start _after_ the term specified by `last`, up to `n`
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entries.
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The behavior of `last` is quite simple when demonstrated with an example. Let
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us say the registry has the following repositories:
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```
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a
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b
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c
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d
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```
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If the value of `n` is 2, _a_ and _b_ will be returned on the first response.
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The `Link` header returned on the response will have `n` set to 2 and last set
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to _b_:
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```
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Link: <<url>?n=2&last=b>; rel="next"
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```
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The client can then issue the request with above value from the `Link` header,
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receiving the values _c_ and _d_. Note that n may change on second to last
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response or be omitted fully, if the server may so choose.
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### Listing Image Tags
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It may be necessary to list all of the tags under a given repository. The tags
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It may be necessary to list all of the tags under a given repository. The tags
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for an image repository can be retrieved with the following request:
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for an image repository can be retrieved with the following request:
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@ -766,8 +899,51 @@ The response will be in the following format:
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}
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}
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For repositories with a large number of tags, this response may be quite
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For repositories with a large number of tags, this response may be quite
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large, so care should be taken by the client when parsing the response to
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large. If such a response is expected, one should use the pagination.
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reduce copying.
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#### Pagination
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Paginated tag results can be retrieved by adding the appropriate parameters to
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the request URL described above. The behavior of tag pagination is identical
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to that specified for catalog pagination. We cover a simple flow to highlight
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any differences.
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Starting a paginated flow may begin as follows:
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```
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GET /v2/<name>/tags/list?n=<integer>
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```
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The above specifies that a tags response should be returned, from the start of
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the result set, ordered lexically, limiting the number of results to `n`. The
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response to such a request would look as follows:
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```
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200 OK
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Content-Type: application/json
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Link: <<url>?n=<n from the request>&last=<last tag value from previous response>>; rel="next"
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{
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"name": <name>,
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"tags": [
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<tag>,
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...
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]
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}
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```
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To get the next result set, a client would issue the request as follows, using
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the value encoded in the [RFC5988](https://tools.ietf.org/html/rfc5988) `Link`
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header:
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```
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GET /v2/<name>/tags/list?n=<n from the request>&last=<last tag 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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set in the response. The behavior of the `last` parameter, the provided
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response result, lexical ordering and encoding of the `Link` header are
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identical to that of catalog pagination.
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### Deleting an Image
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### Deleting an Image
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@ -817,6 +993,7 @@ A list of methods and URIs are covered in the table below:
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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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| 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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| 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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| 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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The detail for each endpoint is covered in the following sections.
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The detail for each endpoint is covered in the following sections.
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@ -886,7 +1063,6 @@ The API implements V2 protocol and is accessible.
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###### On Failure: Unauthorized
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###### On Failure: Unauthorized
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```
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```
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@ -973,6 +1149,7 @@ The following parameters should be specified on the request:
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```
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```
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200 OK
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200 OK
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Content-Length: <length>
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Content-Length: <length>
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Link: <<url>?n=<last n value>&last=<last entry from response>>; rel="next"
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Content-Type: application/json; charset=utf-8
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Content-Type: application/json; charset=utf-8
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{
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{
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@ -1056,6 +1233,52 @@ The error codes that may be included in the response body are enumerated below:
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```
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GET /v2/<name>/tags/list?n=<integer>last=<integer>
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```
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Return a portion of the tags for the specified repository.
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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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|`name`|path|Name of the target repository.|
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|`n`|query|Limit the number of entries in each response. It not present, all entries will be returned.|
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|`last`|query|Result set will include values lexically after last.|
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###### On Success: OK
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```
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200 OK
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|
Content-Length: <length>
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Content-Type: application/json; charset=utf-8
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|
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{
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|
"name": <name>,
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"tags": [
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<tag>,
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|
...
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|
],
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|
}
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|
```
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A list of tags for the named repository.
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|
The following headers will be returned with the response:
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|
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|
|Name|Description|
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|
|----|-----------|
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|
|`Content-Length`|Length of the JSON response body.|
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|`Link`|RFC5988 compliant rel='next' with URL to next result set, if available|
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### Manifest
|
### Manifest
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||||||
|
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|
@ -1453,7 +1676,6 @@ The following parameters should be specified on the request:
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|
|
||||||
|
|
||||||
|
|
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|
|
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###### On Failure: Invalid Name or Reference
|
###### On Failure: Invalid Name or Reference
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|
|
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```
|
```
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|
|
@ -2907,3 +3129,100 @@ The error codes that may be included in the response body are enumerated below:
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|
|
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|
|
||||||
|
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|
### Catalog
|
||||||
|
|
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|
List a set of available repositories in the local registry cluster. Does not provide any indication of what may be available upstream. Applications can only determine if a repository is available but not if it is not available.
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|
|
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|
|
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|
|
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|
#### GET Catalog
|
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|
|
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|
Retrieve a sorted, json list of repositories available in the registry.
|
||||||
|
|
||||||
|
|
||||||
|
##### Catalog Fetch Complete
|
||||||
|
|
||||||
|
```
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|
GET /v2/_catalog
|
||||||
|
```
|
||||||
|
|
||||||
|
Request an unabridged list of repositories available.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
###### On Success: OK
|
||||||
|
|
||||||
|
```
|
||||||
|
200 OK
|
||||||
|
Content-Length: <length>
|
||||||
|
Link: <<url>?n=<last n value>&last=<last entry from response>>; rel="next"
|
||||||
|
Content-Type: application/json; charset=utf-8
|
||||||
|
|
||||||
|
{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
Returns the unabridged list of repositories as a json response.
|
||||||
|
|
||||||
|
The following headers will be returned with the response:
|
||||||
|
|
||||||
|
|Name|Description|
|
||||||
|
|----|-----------|
|
||||||
|
|`Content-Length`|Length of the JSON response body.|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
##### Catalog Fetch Paginated
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/_catalog?n=<integer>last=<integer>
|
||||||
|
```
|
||||||
|
|
||||||
|
Return the specified portion of repositories.
|
||||||
|
|
||||||
|
|
||||||
|
The following parameters should be specified on the request:
|
||||||
|
|
||||||
|
|Name|Kind|Description|
|
||||||
|
|----|----|-----------|
|
||||||
|
|`n`|query|Limit the number of entries in each response. It not present, all entries will be returned.|
|
||||||
|
|`last`|query|Result set will include values lexically after last.|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
###### On Success: OK
|
||||||
|
|
||||||
|
```
|
||||||
|
200 OK
|
||||||
|
Content-Length: <length>
|
||||||
|
Content-Type: application/json; charset=utf-8
|
||||||
|
|
||||||
|
{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
"next": "<url>?last=<name>&n=<last value of n>"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
The following headers will be returned with the response:
|
||||||
|
|
||||||
|
|Name|Description|
|
||||||
|
|----|-----------|
|
||||||
|
|`Content-Length`|Length of the JSON response body.|
|
||||||
|
|`Link`|RFC5988 compliant rel='next' with URL to next result set, if available|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -120,6 +120,16 @@ indicating what is different. Optionally, we may start marking parts of the
|
||||||
specification to correspond with the versions enumerated here.
|
specification to correspond with the versions enumerated here.
|
||||||
|
|
||||||
<dl>
|
<dl>
|
||||||
|
|
||||||
|
<dt>2.0.4</dt>>
|
||||||
|
<dd>
|
||||||
|
<ul>
|
||||||
|
<li>Added support for listing registry contents.</li>
|
||||||
|
<li>Added pagination to tags API.</li>
|
||||||
|
<li>Added common approach to support pagination.</li>
|
||||||
|
</ul>
|
||||||
|
</dd>
|
||||||
|
|
||||||
<dt>2.0.3</dt>
|
<dt>2.0.3</dt>
|
||||||
<dd>
|
<dd>
|
||||||
<li>Allow repository name components to be one character.</li>
|
<li>Allow repository name components to be one character.</li>
|
||||||
|
|
@ -131,7 +141,6 @@ specification to correspond with the versions enumerated here.
|
||||||
<li>Added section covering digest format.</li>
|
<li>Added section covering digest format.</li>
|
||||||
<li>Added more clarification that manifest cannot be deleted by tag.</li>
|
<li>Added more clarification that manifest cannot be deleted by tag.</li>
|
||||||
</dd>
|
</dd>
|
||||||
|
|
||||||
<dt>2.0.1</dt>
|
<dt>2.0.1</dt>
|
||||||
<dd>
|
<dd>
|
||||||
<ul>
|
<ul>
|
||||||
|
|
@ -745,7 +754,131 @@ each unknown blob. The response format is as follows:
|
||||||
]
|
]
|
||||||
}
|
}
|
||||||
|
|
||||||
#### Listing Image Tags
|
### Listing Repositories
|
||||||
|
|
||||||
|
Images are stored in collections, known as a _repository_, which is keyed by a
|
||||||
|
`name`, as seen throughout the API specification. A registry instance may
|
||||||
|
contain several repositories. The list of available repositories is made
|
||||||
|
available through the _catalog_.
|
||||||
|
|
||||||
|
The catalog for a given registry can be retrived with the following request:
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/_catalog
|
||||||
|
```
|
||||||
|
|
||||||
|
The response will be in the following format:
|
||||||
|
|
||||||
|
```
|
||||||
|
200 OK
|
||||||
|
Content-Type: application/json
|
||||||
|
|
||||||
|
{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
Note that the contents of the response are specific to the registry
|
||||||
|
implementation. Some registries may opt to provide a full catalog output,
|
||||||
|
limit it based on the user's access level or omit upstream results, if
|
||||||
|
providing mirroring functionality. Subsequently, the presence of a repository
|
||||||
|
in the catalog listing only means that the registry *may* provide access to
|
||||||
|
the repository at the time of the request. Conversely, a missing entry does
|
||||||
|
*not* mean that the registry does not have the repository. More succinctly,
|
||||||
|
the presence of a repository only guarantees that it is there but not that it
|
||||||
|
is _not_ there.
|
||||||
|
|
||||||
|
For registries with a large number of repositories, this response may be quite
|
||||||
|
large. If such a response is expected, one should use pagination.
|
||||||
|
|
||||||
|
#### Pagination
|
||||||
|
|
||||||
|
Paginated catalog results can be retrieved by adding an `n` parameter to the
|
||||||
|
request URL, declaring that the response should be limited to `n` results.
|
||||||
|
Starting a paginated flow begins as follows:
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/_catalog?n=<integer>
|
||||||
|
```
|
||||||
|
|
||||||
|
The above specifies that a catalog response should be returned, from the start of
|
||||||
|
the result set, ordered lexically, limiting the number of results to `n`. The
|
||||||
|
response to such a request would look as follows:
|
||||||
|
|
||||||
|
```
|
||||||
|
200 OK
|
||||||
|
Content-Type: application/json
|
||||||
|
Link: <<url>?n=<n from the request>&last=<last repository in response>>; rel="next"
|
||||||
|
|
||||||
|
{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
The above includes the _first_ `n` entries from the result set. To get the
|
||||||
|
_next_ `n` entries, one can create a URL where the argument `last` has the
|
||||||
|
value from `repositories[len(repositories)-1]`. If there are indeed more
|
||||||
|
results, the URL for the next block is encoded in an
|
||||||
|
[RFC5988](https://tools.ietf.org/html/rfc5988) `Link` header, as a "next"
|
||||||
|
relation. The presence of the `Link` header communicates to the client that
|
||||||
|
the entire result set has not been returned and another request must be
|
||||||
|
issued. If the header is not present, the client can assume that all results
|
||||||
|
have been recieved.
|
||||||
|
|
||||||
|
> __NOTE:__ In the request template above, note that the brackets
|
||||||
|
> are required. For example, if the url is
|
||||||
|
> `http://example.com/v2/_catalog?n=20&last=b`, the value of the header would
|
||||||
|
> be `<http://example.com/v2/_catalog?n=20&last=b>; rel="next"`. Please see
|
||||||
|
> [RFC5988](https://tools.ietf.org/html/rfc5988) for details.
|
||||||
|
|
||||||
|
Compliant client implementations should always use the `Link` header
|
||||||
|
value when proceeding through results linearly. The client may construct URLs
|
||||||
|
to skip forward in the catalog.
|
||||||
|
|
||||||
|
To get the next result set, a client would issue the request as follows, using
|
||||||
|
the URL encoded in the described `Link` header:
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/_catalog?n=<n from the request>&last=<last repostory value from previous response>
|
||||||
|
```
|
||||||
|
|
||||||
|
The above process should then be repeated until the `Link` header is no longer
|
||||||
|
set.
|
||||||
|
|
||||||
|
The catalog result set is represented abstractly as a lexically sorted list,
|
||||||
|
where the position in that list can be specified by the query term `last`. The
|
||||||
|
entries in the response start _after_ the term specified by `last`, up to `n`
|
||||||
|
entries.
|
||||||
|
|
||||||
|
The behavior of `last` is quite simple when demonstrated with an example. Let
|
||||||
|
us say the registry has the following repositories:
|
||||||
|
|
||||||
|
```
|
||||||
|
a
|
||||||
|
b
|
||||||
|
c
|
||||||
|
d
|
||||||
|
```
|
||||||
|
|
||||||
|
If the value of `n` is 2, _a_ and _b_ will be returned on the first response.
|
||||||
|
The `Link` header returned on the response will have `n` set to 2 and last set
|
||||||
|
to _b_:
|
||||||
|
|
||||||
|
```
|
||||||
|
Link: <<url>?n=2&last=b>; rel="next"
|
||||||
|
```
|
||||||
|
|
||||||
|
The client can then issue the request with above value from the `Link` header,
|
||||||
|
receiving the values _c_ and _d_. Note that n may change on second to last
|
||||||
|
response or be omitted fully, if the server may so choose.
|
||||||
|
|
||||||
|
### Listing Image Tags
|
||||||
|
|
||||||
It may be necessary to list all of the tags under a given repository. The tags
|
It may be necessary to list all of the tags under a given repository. The tags
|
||||||
for an image repository can be retrieved with the following request:
|
for an image repository can be retrieved with the following request:
|
||||||
|
|
@ -766,8 +899,51 @@ The response will be in the following format:
|
||||||
}
|
}
|
||||||
|
|
||||||
For repositories with a large number of tags, this response may be quite
|
For repositories with a large number of tags, this response may be quite
|
||||||
large, so care should be taken by the client when parsing the response to
|
large. If such a response is expected, one should use the pagination.
|
||||||
reduce copying.
|
|
||||||
|
#### Pagination
|
||||||
|
|
||||||
|
Paginated tag results can be retrieved by adding the appropriate parameters to
|
||||||
|
the request URL described above. The behavior of tag pagination is identical
|
||||||
|
to that specified for catalog pagination. We cover a simple flow to highlight
|
||||||
|
any differences.
|
||||||
|
|
||||||
|
Starting a paginated flow may begin as follows:
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/<name>/tags/list?n=<integer>
|
||||||
|
```
|
||||||
|
|
||||||
|
The above specifies that a tags response should be returned, from the start of
|
||||||
|
the result set, ordered lexically, limiting the number of results to `n`. The
|
||||||
|
response to such a request would look as follows:
|
||||||
|
|
||||||
|
```
|
||||||
|
200 OK
|
||||||
|
Content-Type: application/json
|
||||||
|
Link: <<url>?n=<n from the request>&last=<last tag value from previous response>>; rel="next"
|
||||||
|
|
||||||
|
{
|
||||||
|
"name": <name>,
|
||||||
|
"tags": [
|
||||||
|
<tag>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
To get the next result set, a client would issue the request as follows, using
|
||||||
|
the value encoded in the [RFC5988](https://tools.ietf.org/html/rfc5988) `Link`
|
||||||
|
header:
|
||||||
|
|
||||||
|
```
|
||||||
|
GET /v2/<name>/tags/list?n=<n from the request>&last=<last tag value from previous response>
|
||||||
|
```
|
||||||
|
|
||||||
|
The above process should then be repeated until the `Link` header is no longer
|
||||||
|
set in the response. The behavior of the `last` parameter, the provided
|
||||||
|
response result, lexical ordering and encoding of the `Link` header are
|
||||||
|
identical to that of catalog pagination.
|
||||||
|
|
||||||
### Deleting an Image
|
### Deleting an Image
|
||||||
|
|
||||||
|
|
@ -867,8 +1043,13 @@ Content-Type: {{.Body.ContentType}}{{end}}{{if .Body.Format}}
|
||||||
```
|
```
|
||||||
|
|
||||||
{{.Description}}
|
{{.Description}}
|
||||||
|
{{if .Fields}}The following fields may be returned in the response body:
|
||||||
|
|
||||||
{{if .Headers}}The following headers will be returned with the response:
|
|Name|Description|
|
||||||
|
|----|-----------|
|
||||||
|
{{range .Fields}}|`{{.Name}}`|{{.Description}}|
|
||||||
|
{{end}}{{end}}{{if .Headers}}
|
||||||
|
The following headers will be returned with the response:
|
||||||
|
|
||||||
|Name|Description|
|
|Name|Description|
|
||||||
|----|-----------|
|
|----|-----------|
|
||||||
|
|
|
||||||
|
|
@ -35,6 +35,12 @@ type Namespace interface {
|
||||||
// registry may or may not have the repository but should always return a
|
// registry may or may not have the repository but should always return a
|
||||||
// reference.
|
// reference.
|
||||||
Repository(ctx context.Context, name string) (Repository, error)
|
Repository(ctx context.Context, name string) (Repository, error)
|
||||||
|
|
||||||
|
// Repositories fills 'repos' with a lexigraphically sorted catalog of repositories
|
||||||
|
// up to the size of 'repos' and returns the value 'n' for the number of entries
|
||||||
|
// which were filled. 'last' contains an offset in the catalog, and 'err' will be
|
||||||
|
// set to io.EOF if there are no more entries to obtain.
|
||||||
|
Repositories(ctx context.Context, repos []string, last string) (n int, err error)
|
||||||
}
|
}
|
||||||
|
|
||||||
// ManifestServiceOption is a function argument for Manifest Service methods
|
// ManifestServiceOption is a function argument for Manifest Service methods
|
||||||
|
|
|
||||||
|
|
@ -87,6 +87,30 @@ var (
|
||||||
Format: "<digest>",
|
Format: "<digest>",
|
||||||
}
|
}
|
||||||
|
|
||||||
|
linkHeader = ParameterDescriptor{
|
||||||
|
Name: "Link",
|
||||||
|
Type: "link",
|
||||||
|
Description: "RFC5988 compliant rel='next' with URL to next result set, if available",
|
||||||
|
Format: `<<url>?n=<last n value>&last=<last entry from response>>; rel="next"`,
|
||||||
|
}
|
||||||
|
|
||||||
|
paginationParameters = []ParameterDescriptor{
|
||||||
|
{
|
||||||
|
Name: "n",
|
||||||
|
Type: "integer",
|
||||||
|
Description: "Limit the number of entries in each response. It not present, all entries will be returned.",
|
||||||
|
Format: "<integer>",
|
||||||
|
Required: false,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
Name: "last",
|
||||||
|
Type: "string",
|
||||||
|
Description: "Result set will include values lexically after last.",
|
||||||
|
Format: "<integer>",
|
||||||
|
Required: false,
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
unauthorizedResponse = ResponseDescriptor{
|
unauthorizedResponse = ResponseDescriptor{
|
||||||
Description: "The client does not have access to the repository.",
|
Description: "The client does not have access to the repository.",
|
||||||
StatusCode: http.StatusUnauthorized,
|
StatusCode: http.StatusUnauthorized,
|
||||||
|
|
@ -269,6 +293,9 @@ type ResponseDescriptor struct {
|
||||||
// Headers covers any headers that may be returned from the response.
|
// Headers covers any headers that may be returned from the response.
|
||||||
Headers []ParameterDescriptor
|
Headers []ParameterDescriptor
|
||||||
|
|
||||||
|
// Fields describes any fields that may be present in the response.
|
||||||
|
Fields []ParameterDescriptor
|
||||||
|
|
||||||
// ErrorCodes enumerates the error codes that may be returned along with
|
// ErrorCodes enumerates the error codes that may be returned along with
|
||||||
// the response.
|
// the response.
|
||||||
ErrorCodes []errcode.ErrorCode
|
ErrorCodes []errcode.ErrorCode
|
||||||
|
|
@ -427,6 +454,36 @@ var routeDescriptors = []RouteDescriptor{
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
Description: "Return a portion of the tags for the specified repository.",
|
||||||
|
PathParameters: []ParameterDescriptor{nameParameterDescriptor},
|
||||||
|
QueryParameters: paginationParameters,
|
||||||
|
Successes: []ResponseDescriptor{
|
||||||
|
{
|
||||||
|
StatusCode: http.StatusOK,
|
||||||
|
Description: "A list of tags for the named repository.",
|
||||||
|
Headers: []ParameterDescriptor{
|
||||||
|
{
|
||||||
|
Name: "Content-Length",
|
||||||
|
Type: "integer",
|
||||||
|
Description: "Length of the JSON response body.",
|
||||||
|
Format: "<length>",
|
||||||
|
},
|
||||||
|
linkHeader,
|
||||||
|
},
|
||||||
|
Body: BodyDescriptor{
|
||||||
|
ContentType: "application/json; charset=utf-8",
|
||||||
|
Format: `{
|
||||||
|
"name": <name>,
|
||||||
|
"tags": [
|
||||||
|
<tag>,
|
||||||
|
...
|
||||||
|
],
|
||||||
|
}`,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
|
|
@ -1320,6 +1377,76 @@ var routeDescriptors = []RouteDescriptor{
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
Name: RouteNameCatalog,
|
||||||
|
Path: "/v2/_catalog",
|
||||||
|
Entity: "Catalog",
|
||||||
|
Description: "List a set of available repositories in the local registry cluster. Does not provide any indication of what may be available upstream. Applications can only determine if a repository is available but not if it is not available.",
|
||||||
|
Methods: []MethodDescriptor{
|
||||||
|
{
|
||||||
|
Method: "GET",
|
||||||
|
Description: "Retrieve a sorted, json list of repositories available in the registry.",
|
||||||
|
Requests: []RequestDescriptor{
|
||||||
|
{
|
||||||
|
Name: "Catalog Fetch Complete",
|
||||||
|
Description: "Request an unabridged list of repositories available.",
|
||||||
|
Successes: []ResponseDescriptor{
|
||||||
|
{
|
||||||
|
Description: "Returns the unabridged list of repositories as a json response.",
|
||||||
|
StatusCode: http.StatusOK,
|
||||||
|
Headers: []ParameterDescriptor{
|
||||||
|
{
|
||||||
|
Name: "Content-Length",
|
||||||
|
Type: "integer",
|
||||||
|
Description: "Length of the JSON response body.",
|
||||||
|
Format: "<length>",
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Body: BodyDescriptor{
|
||||||
|
ContentType: "application/json; charset=utf-8",
|
||||||
|
Format: `{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
}`,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
{
|
||||||
|
Name: "Catalog Fetch Paginated",
|
||||||
|
Description: "Return the specified portion of repositories.",
|
||||||
|
QueryParameters: paginationParameters,
|
||||||
|
Successes: []ResponseDescriptor{
|
||||||
|
{
|
||||||
|
StatusCode: http.StatusOK,
|
||||||
|
Body: BodyDescriptor{
|
||||||
|
ContentType: "application/json; charset=utf-8",
|
||||||
|
Format: `{
|
||||||
|
"repositories": [
|
||||||
|
<name>,
|
||||||
|
...
|
||||||
|
]
|
||||||
|
"next": "<url>?last=<name>&n=<last value of n>"
|
||||||
|
}`,
|
||||||
|
},
|
||||||
|
Headers: []ParameterDescriptor{
|
||||||
|
{
|
||||||
|
Name: "Content-Length",
|
||||||
|
Type: "integer",
|
||||||
|
Description: "Length of the JSON response body.",
|
||||||
|
Format: "<length>",
|
||||||
|
},
|
||||||
|
linkHeader,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
}
|
}
|
||||||
|
|
||||||
var routeDescriptorsMap map[string]RouteDescriptor
|
var routeDescriptorsMap map[string]RouteDescriptor
|
||||||
|
|
|
||||||
|
|
@ -11,10 +11,12 @@ const (
|
||||||
RouteNameBlob = "blob"
|
RouteNameBlob = "blob"
|
||||||
RouteNameBlobUpload = "blob-upload"
|
RouteNameBlobUpload = "blob-upload"
|
||||||
RouteNameBlobUploadChunk = "blob-upload-chunk"
|
RouteNameBlobUploadChunk = "blob-upload-chunk"
|
||||||
|
RouteNameCatalog = "catalog"
|
||||||
)
|
)
|
||||||
|
|
||||||
var allEndpoints = []string{
|
var allEndpoints = []string{
|
||||||
RouteNameManifest,
|
RouteNameManifest,
|
||||||
|
RouteNameCatalog,
|
||||||
RouteNameTags,
|
RouteNameTags,
|
||||||
RouteNameBlob,
|
RouteNameBlob,
|
||||||
RouteNameBlobUpload,
|
RouteNameBlobUpload,
|
||||||
|
|
|
||||||
|
|
@ -100,6 +100,18 @@ func (ub *URLBuilder) BuildBaseURL() (string, error) {
|
||||||
return baseURL.String(), nil
|
return baseURL.String(), nil
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// BuildCatalogURL constructs a url get a catalog of repositories
|
||||||
|
func (ub *URLBuilder) BuildCatalogURL(values ...url.Values) (string, error) {
|
||||||
|
route := ub.cloneRoute(RouteNameCatalog)
|
||||||
|
|
||||||
|
catalogURL, err := route.URL()
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
return appendValuesURL(catalogURL, values...).String(), nil
|
||||||
|
}
|
||||||
|
|
||||||
// BuildTagsURL constructs a url to list the tags in the named repository.
|
// BuildTagsURL constructs a url to list the tags in the named repository.
|
||||||
func (ub *URLBuilder) BuildTagsURL(name string) (string, error) {
|
func (ub *URLBuilder) BuildTagsURL(name string) (string, error) {
|
||||||
route := ub.cloneRoute(RouteNameTags)
|
route := ub.cloneRoute(RouteNameTags)
|
||||||
|
|
|
||||||
|
|
@ -21,6 +21,83 @@ import (
|
||||||
"github.com/docker/distribution/registry/storage/cache/memory"
|
"github.com/docker/distribution/registry/storage/cache/memory"
|
||||||
)
|
)
|
||||||
|
|
||||||
|
// Registry provides an interface for calling Repositories, which returns a catalog of repositories.
|
||||||
|
type Registry interface {
|
||||||
|
Repositories(ctx context.Context, repos []string, last string) (n int, err error)
|
||||||
|
}
|
||||||
|
|
||||||
|
// NewRegistry creates a registry namespace which can be used to get a listing of repositories
|
||||||
|
func NewRegistry(ctx context.Context, baseURL string, transport http.RoundTripper) (Registry, error) {
|
||||||
|
ub, err := v2.NewURLBuilderFromString(baseURL)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
client := &http.Client{
|
||||||
|
Transport: transport,
|
||||||
|
Timeout: 1 * time.Minute,
|
||||||
|
}
|
||||||
|
|
||||||
|
return ®istry{
|
||||||
|
client: client,
|
||||||
|
ub: ub,
|
||||||
|
context: ctx,
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
type registry struct {
|
||||||
|
client *http.Client
|
||||||
|
ub *v2.URLBuilder
|
||||||
|
context context.Context
|
||||||
|
}
|
||||||
|
|
||||||
|
// Repositories returns a lexigraphically sorted catalog given a base URL. The 'entries' slice will be filled up to the size
|
||||||
|
// of the slice, starting at the value provided in 'last'. The number of entries will be returned along with io.EOF if there
|
||||||
|
// are no more entries
|
||||||
|
func (r *registry) Repositories(ctx context.Context, entries []string, last string) (int, error) {
|
||||||
|
var numFilled int
|
||||||
|
var returnErr error
|
||||||
|
|
||||||
|
values := buildCatalogValues(len(entries), last)
|
||||||
|
u, err := r.ub.BuildCatalogURL(values)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
|
||||||
|
resp, err := r.client.Get(u)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
defer resp.Body.Close()
|
||||||
|
|
||||||
|
switch resp.StatusCode {
|
||||||
|
case http.StatusOK:
|
||||||
|
var ctlg struct {
|
||||||
|
Repositories []string `json:"repositories"`
|
||||||
|
}
|
||||||
|
decoder := json.NewDecoder(resp.Body)
|
||||||
|
|
||||||
|
if err := decoder.Decode(&ctlg); err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
|
||||||
|
for cnt := range ctlg.Repositories {
|
||||||
|
entries[cnt] = ctlg.Repositories[cnt]
|
||||||
|
}
|
||||||
|
numFilled = len(ctlg.Repositories)
|
||||||
|
|
||||||
|
link := resp.Header.Get("Link")
|
||||||
|
if link == "" {
|
||||||
|
returnErr = io.EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
default:
|
||||||
|
return 0, handleErrorResponse(resp)
|
||||||
|
}
|
||||||
|
|
||||||
|
return numFilled, returnErr
|
||||||
|
}
|
||||||
|
|
||||||
// NewRepository creates a new Repository for the given repository name and base URL
|
// NewRepository creates a new Repository for the given repository name and base URL
|
||||||
func NewRepository(ctx context.Context, name, baseURL string, transport http.RoundTripper) (distribution.Repository, error) {
|
func NewRepository(ctx context.Context, name, baseURL string, transport http.RoundTripper) (distribution.Repository, error) {
|
||||||
if err := v2.ValidateRepositoryName(name); err != nil {
|
if err := v2.ValidateRepositoryName(name); err != nil {
|
||||||
|
|
@ -444,3 +521,17 @@ func (bs *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distributi
|
||||||
return distribution.Descriptor{}, handleErrorResponse(resp)
|
return distribution.Descriptor{}, handleErrorResponse(resp)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func buildCatalogValues(maxEntries int, last string) url.Values {
|
||||||
|
values := url.Values{}
|
||||||
|
|
||||||
|
if maxEntries > 0 {
|
||||||
|
values.Add("n", strconv.Itoa(maxEntries))
|
||||||
|
}
|
||||||
|
|
||||||
|
if last != "" {
|
||||||
|
values.Add("last", last)
|
||||||
|
}
|
||||||
|
|
||||||
|
return values
|
||||||
|
}
|
||||||
|
|
|
||||||
|
|
@ -5,9 +5,11 @@ import (
|
||||||
"crypto/rand"
|
"crypto/rand"
|
||||||
"encoding/json"
|
"encoding/json"
|
||||||
"fmt"
|
"fmt"
|
||||||
|
"io"
|
||||||
"log"
|
"log"
|
||||||
"net/http"
|
"net/http"
|
||||||
"net/http/httptest"
|
"net/http/httptest"
|
||||||
|
"strconv"
|
||||||
"strings"
|
"strings"
|
||||||
"testing"
|
"testing"
|
||||||
"time"
|
"time"
|
||||||
|
|
@ -77,6 +79,28 @@ func addTestFetch(repo string, dgst digest.Digest, content []byte, m *testutil.R
|
||||||
})
|
})
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func addTestCatalog(route string, content []byte, link string, m *testutil.RequestResponseMap) {
|
||||||
|
headers := map[string][]string{
|
||||||
|
"Content-Length": {strconv.Itoa(len(content))},
|
||||||
|
"Content-Type": {"application/json; charset=utf-8"},
|
||||||
|
}
|
||||||
|
if link != "" {
|
||||||
|
headers["Link"] = append(headers["Link"], link)
|
||||||
|
}
|
||||||
|
|
||||||
|
*m = append(*m, testutil.RequestResponseMapping{
|
||||||
|
Request: testutil.Request{
|
||||||
|
Method: "GET",
|
||||||
|
Route: route,
|
||||||
|
},
|
||||||
|
Response: testutil.Response{
|
||||||
|
StatusCode: http.StatusOK,
|
||||||
|
Body: content,
|
||||||
|
Headers: http.Header(headers),
|
||||||
|
},
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
func TestBlobFetch(t *testing.T) {
|
func TestBlobFetch(t *testing.T) {
|
||||||
d1, b1 := newRandomBlob(1024)
|
d1, b1 := newRandomBlob(1024)
|
||||||
var m testutil.RequestResponseMap
|
var m testutil.RequestResponseMap
|
||||||
|
|
@ -732,3 +756,71 @@ func TestManifestUnauthorized(t *testing.T) {
|
||||||
t.Fatalf("Unexpected message value: %q, expected %q", v2Err.Message, expected)
|
t.Fatalf("Unexpected message value: %q, expected %q", v2Err.Message, expected)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func TestCatalog(t *testing.T) {
|
||||||
|
var m testutil.RequestResponseMap
|
||||||
|
addTestCatalog(
|
||||||
|
"/v2/_catalog?n=5",
|
||||||
|
[]byte("{\"repositories\":[\"foo\", \"bar\", \"baz\"]}"), "", &m)
|
||||||
|
|
||||||
|
e, c := testServer(m)
|
||||||
|
defer c()
|
||||||
|
|
||||||
|
entries := make([]string, 5)
|
||||||
|
|
||||||
|
r, err := NewRegistry(context.Background(), e, nil)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatal(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
ctx := context.Background()
|
||||||
|
numFilled, err := r.Repositories(ctx, entries, "")
|
||||||
|
if err != io.EOF {
|
||||||
|
t.Fatal(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if numFilled != 3 {
|
||||||
|
t.Fatalf("Got wrong number of repos")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestCatalogInParts(t *testing.T) {
|
||||||
|
var m testutil.RequestResponseMap
|
||||||
|
addTestCatalog(
|
||||||
|
"/v2/_catalog?n=2",
|
||||||
|
[]byte("{\"repositories\":[\"bar\", \"baz\"]}"),
|
||||||
|
"</v2/_catalog?last=baz&n=2>", &m)
|
||||||
|
addTestCatalog(
|
||||||
|
"/v2/_catalog?last=baz&n=2",
|
||||||
|
[]byte("{\"repositories\":[\"foo\"]}"),
|
||||||
|
"", &m)
|
||||||
|
|
||||||
|
e, c := testServer(m)
|
||||||
|
defer c()
|
||||||
|
|
||||||
|
entries := make([]string, 2)
|
||||||
|
|
||||||
|
r, err := NewRegistry(context.Background(), e, nil)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatal(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
ctx := context.Background()
|
||||||
|
numFilled, err := r.Repositories(ctx, entries, "")
|
||||||
|
if err != nil {
|
||||||
|
t.Fatal(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if numFilled != 2 {
|
||||||
|
t.Fatalf("Got wrong number of repos")
|
||||||
|
}
|
||||||
|
|
||||||
|
numFilled, err = r.Repositories(ctx, entries, "baz")
|
||||||
|
if err != io.EOF {
|
||||||
|
t.Fatal(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if numFilled != 1 {
|
||||||
|
t.Fatalf("Got wrong number of repos")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
|
||||||
|
|
@ -13,6 +13,8 @@ import (
|
||||||
"os"
|
"os"
|
||||||
"path"
|
"path"
|
||||||
"reflect"
|
"reflect"
|
||||||
|
"regexp"
|
||||||
|
"strconv"
|
||||||
"strings"
|
"strings"
|
||||||
"testing"
|
"testing"
|
||||||
|
|
||||||
|
|
@ -60,6 +62,152 @@ func TestCheckAPI(t *testing.T) {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// TestCatalogAPI tests the /v2/_catalog endpoint
|
||||||
|
func TestCatalogAPI(t *testing.T) {
|
||||||
|
chunkLen := 2
|
||||||
|
env := newTestEnv(t)
|
||||||
|
|
||||||
|
values := url.Values{
|
||||||
|
"last": []string{""},
|
||||||
|
"n": []string{strconv.Itoa(chunkLen)}}
|
||||||
|
|
||||||
|
catalogURL, err := env.builder.BuildCatalogURL(values)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error building catalog url: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------
|
||||||
|
// try to get an empty catalog
|
||||||
|
resp, err := http.Get(catalogURL)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error issuing request: %v", err)
|
||||||
|
}
|
||||||
|
defer resp.Body.Close()
|
||||||
|
|
||||||
|
checkResponse(t, "issuing catalog api check", resp, http.StatusOK)
|
||||||
|
|
||||||
|
var ctlg struct {
|
||||||
|
Repositories []string `json:"repositories"`
|
||||||
|
}
|
||||||
|
|
||||||
|
dec := json.NewDecoder(resp.Body)
|
||||||
|
if err := dec.Decode(&ctlg); err != nil {
|
||||||
|
t.Fatalf("error decoding fetched manifest: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
// we haven't pushed anything to the registry yet
|
||||||
|
if len(ctlg.Repositories) != 0 {
|
||||||
|
t.Fatalf("repositories has unexpected values")
|
||||||
|
}
|
||||||
|
|
||||||
|
if resp.Header.Get("Link") != "" {
|
||||||
|
t.Fatalf("repositories has more data when none expected")
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------
|
||||||
|
// push something to the registry and try again
|
||||||
|
images := []string{"foo/aaaa", "foo/bbbb", "foo/cccc"}
|
||||||
|
|
||||||
|
for _, image := range images {
|
||||||
|
createRepository(env, t, image, "sometag")
|
||||||
|
}
|
||||||
|
|
||||||
|
resp, err = http.Get(catalogURL)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error issuing request: %v", err)
|
||||||
|
}
|
||||||
|
defer resp.Body.Close()
|
||||||
|
|
||||||
|
checkResponse(t, "issuing catalog api check", resp, http.StatusOK)
|
||||||
|
|
||||||
|
dec = json.NewDecoder(resp.Body)
|
||||||
|
if err = dec.Decode(&ctlg); err != nil {
|
||||||
|
t.Fatalf("error decoding fetched manifest: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(ctlg.Repositories) != chunkLen {
|
||||||
|
t.Fatalf("repositories has unexpected values")
|
||||||
|
}
|
||||||
|
|
||||||
|
for _, image := range images[:chunkLen] {
|
||||||
|
if !contains(ctlg.Repositories, image) {
|
||||||
|
t.Fatalf("didn't find our repository '%s' in the catalog", image)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
link := resp.Header.Get("Link")
|
||||||
|
if link == "" {
|
||||||
|
t.Fatalf("repositories has less data than expected")
|
||||||
|
}
|
||||||
|
|
||||||
|
newValues := checkLink(t, link, chunkLen, ctlg.Repositories[len(ctlg.Repositories)-1])
|
||||||
|
|
||||||
|
// -----------------------------------
|
||||||
|
// get the last chunk of data
|
||||||
|
|
||||||
|
catalogURL, err = env.builder.BuildCatalogURL(newValues)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error building catalog url: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
resp, err = http.Get(catalogURL)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error issuing request: %v", err)
|
||||||
|
}
|
||||||
|
defer resp.Body.Close()
|
||||||
|
|
||||||
|
checkResponse(t, "issuing catalog api check", resp, http.StatusOK)
|
||||||
|
|
||||||
|
dec = json.NewDecoder(resp.Body)
|
||||||
|
if err = dec.Decode(&ctlg); err != nil {
|
||||||
|
t.Fatalf("error decoding fetched manifest: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(ctlg.Repositories) != 1 {
|
||||||
|
t.Fatalf("repositories has unexpected values")
|
||||||
|
}
|
||||||
|
|
||||||
|
lastImage := images[len(images)-1]
|
||||||
|
if !contains(ctlg.Repositories, lastImage) {
|
||||||
|
t.Fatalf("didn't find our repository '%s' in the catalog", lastImage)
|
||||||
|
}
|
||||||
|
|
||||||
|
link = resp.Header.Get("Link")
|
||||||
|
if link != "" {
|
||||||
|
t.Fatalf("catalog has unexpected data")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func checkLink(t *testing.T, urlStr string, numEntries int, last string) url.Values {
|
||||||
|
re := regexp.MustCompile("<(/v2/_catalog.*)>; rel=\"next\"")
|
||||||
|
matches := re.FindStringSubmatch(urlStr)
|
||||||
|
|
||||||
|
if len(matches) != 2 {
|
||||||
|
t.Fatalf("Catalog link address response was incorrect")
|
||||||
|
}
|
||||||
|
linkURL, _ := url.Parse(matches[1])
|
||||||
|
urlValues := linkURL.Query()
|
||||||
|
|
||||||
|
if urlValues.Get("n") != strconv.Itoa(numEntries) {
|
||||||
|
t.Fatalf("Catalog link entry size is incorrect")
|
||||||
|
}
|
||||||
|
|
||||||
|
if urlValues.Get("last") != last {
|
||||||
|
t.Fatal("Catalog link last entry is incorrect")
|
||||||
|
}
|
||||||
|
|
||||||
|
return urlValues
|
||||||
|
}
|
||||||
|
|
||||||
|
func contains(elems []string, e string) bool {
|
||||||
|
for _, elem := range elems {
|
||||||
|
if elem == e {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
|
||||||
func TestURLPrefix(t *testing.T) {
|
func TestURLPrefix(t *testing.T) {
|
||||||
config := configuration.Configuration{
|
config := configuration.Configuration{
|
||||||
Storage: configuration.Storage{
|
Storage: configuration.Storage{
|
||||||
|
|
@ -869,3 +1017,60 @@ func checkErr(t *testing.T, err error, msg string) {
|
||||||
t.Fatalf("unexpected error %s: %v", msg, err)
|
t.Fatalf("unexpected error %s: %v", msg, err)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func createRepository(env *testEnv, t *testing.T, imageName string, tag string) {
|
||||||
|
unsignedManifest := &manifest.Manifest{
|
||||||
|
Versioned: manifest.Versioned{
|
||||||
|
SchemaVersion: 1,
|
||||||
|
},
|
||||||
|
Name: imageName,
|
||||||
|
Tag: tag,
|
||||||
|
FSLayers: []manifest.FSLayer{
|
||||||
|
{
|
||||||
|
BlobSum: "asdf",
|
||||||
|
},
|
||||||
|
{
|
||||||
|
BlobSum: "qwer",
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
// Push 2 random layers
|
||||||
|
expectedLayers := make(map[digest.Digest]io.ReadSeeker)
|
||||||
|
|
||||||
|
for i := range unsignedManifest.FSLayers {
|
||||||
|
rs, dgstStr, err := testutil.CreateRandomTarFile()
|
||||||
|
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("error creating random layer %d: %v", i, err)
|
||||||
|
}
|
||||||
|
dgst := digest.Digest(dgstStr)
|
||||||
|
|
||||||
|
expectedLayers[dgst] = rs
|
||||||
|
unsignedManifest.FSLayers[i].BlobSum = dgst
|
||||||
|
|
||||||
|
uploadURLBase, _ := startPushLayer(t, env.builder, imageName)
|
||||||
|
pushLayer(t, env.builder, imageName, dgst, uploadURLBase, rs)
|
||||||
|
}
|
||||||
|
|
||||||
|
signedManifest, err := manifest.Sign(unsignedManifest, env.pk)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("unexpected error signing manifest: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
payload, err := signedManifest.Payload()
|
||||||
|
checkErr(t, err, "getting manifest payload")
|
||||||
|
|
||||||
|
dgst, err := digest.FromBytes(payload)
|
||||||
|
checkErr(t, err, "digesting manifest")
|
||||||
|
|
||||||
|
manifestDigestURL, err := env.builder.BuildManifestURL(imageName, dgst.String())
|
||||||
|
checkErr(t, err, "building manifest url")
|
||||||
|
|
||||||
|
resp := putManifest(t, "putting signed manifest", manifestDigestURL, signedManifest)
|
||||||
|
checkResponse(t, "putting signed manifest", resp, http.StatusAccepted)
|
||||||
|
checkHeaders(t, resp, http.Header{
|
||||||
|
"Location": []string{manifestDigestURL},
|
||||||
|
"Docker-Content-Digest": []string{dgst.String()},
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
|
||||||
|
|
@ -69,6 +69,7 @@ func NewApp(ctx context.Context, configuration configuration.Configuration) *App
|
||||||
return http.HandlerFunc(apiBase)
|
return http.HandlerFunc(apiBase)
|
||||||
})
|
})
|
||||||
app.register(v2.RouteNameManifest, imageManifestDispatcher)
|
app.register(v2.RouteNameManifest, imageManifestDispatcher)
|
||||||
|
app.register(v2.RouteNameCatalog, catalogDispatcher)
|
||||||
app.register(v2.RouteNameTags, tagsDispatcher)
|
app.register(v2.RouteNameTags, tagsDispatcher)
|
||||||
app.register(v2.RouteNameBlob, blobDispatcher)
|
app.register(v2.RouteNameBlob, blobDispatcher)
|
||||||
app.register(v2.RouteNameBlobUpload, blobUploadDispatcher)
|
app.register(v2.RouteNameBlobUpload, blobUploadDispatcher)
|
||||||
|
|
@ -493,6 +494,7 @@ func (app *App) authorized(w http.ResponseWriter, r *http.Request, context *Cont
|
||||||
}
|
}
|
||||||
return fmt.Errorf("forbidden: no repository name")
|
return fmt.Errorf("forbidden: no repository name")
|
||||||
}
|
}
|
||||||
|
accessRecords = appendCatalogAccessRecord(accessRecords, r)
|
||||||
}
|
}
|
||||||
|
|
||||||
ctx, err := app.accessController.Authorized(context.Context, accessRecords...)
|
ctx, err := app.accessController.Authorized(context.Context, accessRecords...)
|
||||||
|
|
@ -538,7 +540,8 @@ func (app *App) eventBridge(ctx *Context, r *http.Request) notifications.Listene
|
||||||
// nameRequired returns true if the route requires a name.
|
// nameRequired returns true if the route requires a name.
|
||||||
func (app *App) nameRequired(r *http.Request) bool {
|
func (app *App) nameRequired(r *http.Request) bool {
|
||||||
route := mux.CurrentRoute(r)
|
route := mux.CurrentRoute(r)
|
||||||
return route == nil || route.GetName() != v2.RouteNameBase
|
routeName := route.GetName()
|
||||||
|
return route == nil || (routeName != v2.RouteNameBase && routeName != v2.RouteNameCatalog)
|
||||||
}
|
}
|
||||||
|
|
||||||
// apiBase implements a simple yes-man for doing overall checks against the
|
// apiBase implements a simple yes-man for doing overall checks against the
|
||||||
|
|
@ -588,6 +591,26 @@ func appendAccessRecords(records []auth.Access, method string, repo string) []au
|
||||||
return records
|
return records
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Add the access record for the catalog if it's our current route
|
||||||
|
func appendCatalogAccessRecord(accessRecords []auth.Access, r *http.Request) []auth.Access {
|
||||||
|
route := mux.CurrentRoute(r)
|
||||||
|
routeName := route.GetName()
|
||||||
|
|
||||||
|
if routeName == v2.RouteNameCatalog {
|
||||||
|
resource := auth.Resource{
|
||||||
|
Type: "registry",
|
||||||
|
Name: "catalog",
|
||||||
|
}
|
||||||
|
|
||||||
|
accessRecords = append(accessRecords,
|
||||||
|
auth.Access{
|
||||||
|
Resource: resource,
|
||||||
|
Action: "*",
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return accessRecords
|
||||||
|
}
|
||||||
|
|
||||||
// applyRegistryMiddleware wraps a registry instance with the configured middlewares
|
// applyRegistryMiddleware wraps a registry instance with the configured middlewares
|
||||||
func applyRegistryMiddleware(registry distribution.Namespace, middlewares []configuration.Middleware) (distribution.Namespace, error) {
|
func applyRegistryMiddleware(registry distribution.Namespace, middlewares []configuration.Middleware) (distribution.Namespace, error) {
|
||||||
for _, mw := range middlewares {
|
for _, mw := range middlewares {
|
||||||
|
|
|
||||||
95
registry/handlers/catalog.go
Normal file
95
registry/handlers/catalog.go
Normal file
|
|
@ -0,0 +1,95 @@
|
||||||
|
package handlers
|
||||||
|
|
||||||
|
import (
|
||||||
|
"encoding/json"
|
||||||
|
"fmt"
|
||||||
|
"io"
|
||||||
|
"net/http"
|
||||||
|
"net/url"
|
||||||
|
"strconv"
|
||||||
|
|
||||||
|
"github.com/docker/distribution/registry/api/errcode"
|
||||||
|
"github.com/gorilla/handlers"
|
||||||
|
)
|
||||||
|
|
||||||
|
const maximumReturnedEntries = 100
|
||||||
|
|
||||||
|
func catalogDispatcher(ctx *Context, r *http.Request) http.Handler {
|
||||||
|
catalogHandler := &catalogHandler{
|
||||||
|
Context: ctx,
|
||||||
|
}
|
||||||
|
|
||||||
|
return handlers.MethodHandler{
|
||||||
|
"GET": http.HandlerFunc(catalogHandler.GetCatalog),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
type catalogHandler struct {
|
||||||
|
*Context
|
||||||
|
}
|
||||||
|
|
||||||
|
type catalogAPIResponse struct {
|
||||||
|
Repositories []string `json:"repositories"`
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ch *catalogHandler) GetCatalog(w http.ResponseWriter, r *http.Request) {
|
||||||
|
var moreEntries = true
|
||||||
|
|
||||||
|
q := r.URL.Query()
|
||||||
|
lastEntry := q.Get("last")
|
||||||
|
maxEntries, err := strconv.Atoi(q.Get("n"))
|
||||||
|
if err != nil || maxEntries < 0 {
|
||||||
|
maxEntries = maximumReturnedEntries
|
||||||
|
}
|
||||||
|
|
||||||
|
repos := make([]string, maxEntries)
|
||||||
|
|
||||||
|
filled, err := ch.App.registry.Repositories(ch.Context, repos, lastEntry)
|
||||||
|
if err == io.EOF {
|
||||||
|
moreEntries = false
|
||||||
|
} else if err != nil {
|
||||||
|
ch.Errors = append(ch.Errors, errcode.ErrorCodeUnknown.WithDetail(err))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
w.Header().Set("Content-Type", "application/json; charset=utf-8")
|
||||||
|
|
||||||
|
// Add a link header if there are more entries to retrieve
|
||||||
|
if moreEntries {
|
||||||
|
lastEntry = repos[len(repos)-1]
|
||||||
|
urlStr, err := createLinkEntry(r.URL.String(), maxEntries, lastEntry)
|
||||||
|
if err != nil {
|
||||||
|
ch.Errors = append(ch.Errors, errcode.ErrorCodeUnknown.WithDetail(err))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
w.Header().Set("Link", urlStr)
|
||||||
|
}
|
||||||
|
|
||||||
|
enc := json.NewEncoder(w)
|
||||||
|
if err := enc.Encode(catalogAPIResponse{
|
||||||
|
Repositories: repos[0:filled],
|
||||||
|
}); err != nil {
|
||||||
|
ch.Errors = append(ch.Errors, errcode.ErrorCodeUnknown.WithDetail(err))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Use the original URL from the request to create a new URL for
|
||||||
|
// the link header
|
||||||
|
func createLinkEntry(origURL string, maxEntries int, lastEntry string) (string, error) {
|
||||||
|
calledURL, err := url.Parse(origURL)
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
v := url.Values{}
|
||||||
|
v.Add("n", strconv.Itoa(maxEntries))
|
||||||
|
v.Add("last", lastEntry)
|
||||||
|
|
||||||
|
calledURL.RawQuery = v.Encode()
|
||||||
|
|
||||||
|
calledURL.Fragment = ""
|
||||||
|
urlStr := fmt.Sprintf("<%s>; rel=\"next\"", calledURL.String())
|
||||||
|
|
||||||
|
return urlStr, nil
|
||||||
|
}
|
||||||
65
registry/storage/catalog.go
Normal file
65
registry/storage/catalog.go
Normal file
|
|
@ -0,0 +1,65 @@
|
||||||
|
package storage
|
||||||
|
|
||||||
|
import (
|
||||||
|
"errors"
|
||||||
|
"io"
|
||||||
|
"path"
|
||||||
|
"sort"
|
||||||
|
"strings"
|
||||||
|
|
||||||
|
"github.com/docker/distribution/context"
|
||||||
|
"github.com/docker/distribution/registry/storage/driver"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Returns a list, or partial list, of repositories in the registry.
|
||||||
|
// Because it's a quite expensive operation, it should only be used when building up
|
||||||
|
// an initial set of repositories.
|
||||||
|
func (reg *registry) Repositories(ctx context.Context, repos []string, last string) (n int, err error) {
|
||||||
|
var foundRepos []string
|
||||||
|
var errVal error
|
||||||
|
|
||||||
|
if len(repos) == 0 {
|
||||||
|
return 0, errors.New("no space in slice")
|
||||||
|
}
|
||||||
|
|
||||||
|
root, err := defaultPathMapper.path(repositoriesRootPathSpec{})
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Walk each of the directories in our storage. Unfortunately since there's no
|
||||||
|
// guarantee that storage will return files in lexigraphical order, we have
|
||||||
|
// to store everything another slice, sort it and then copy it back to our
|
||||||
|
// passed in slice.
|
||||||
|
|
||||||
|
Walk(ctx, reg.blobStore.driver, root, func(fileInfo driver.FileInfo) error {
|
||||||
|
filePath := fileInfo.Path()
|
||||||
|
|
||||||
|
// lop the base path off
|
||||||
|
repoPath := filePath[len(root)+1:]
|
||||||
|
|
||||||
|
_, file := path.Split(repoPath)
|
||||||
|
if file == "_layers" {
|
||||||
|
repoPath = strings.TrimSuffix(repoPath, "/_layers")
|
||||||
|
if repoPath > last {
|
||||||
|
foundRepos = append(foundRepos, repoPath)
|
||||||
|
}
|
||||||
|
return ErrSkipDir
|
||||||
|
} else if strings.HasPrefix(file, "_") {
|
||||||
|
return ErrSkipDir
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
})
|
||||||
|
|
||||||
|
sort.Strings(foundRepos)
|
||||||
|
n = copy(repos, foundRepos)
|
||||||
|
|
||||||
|
// Signal that we have no more entries by setting EOF
|
||||||
|
if len(foundRepos) <= len(repos) {
|
||||||
|
errVal = io.EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
return n, errVal
|
||||||
|
|
||||||
|
}
|
||||||
122
registry/storage/catalog_test.go
Normal file
122
registry/storage/catalog_test.go
Normal file
|
|
@ -0,0 +1,122 @@
|
||||||
|
package storage
|
||||||
|
|
||||||
|
import (
|
||||||
|
"io"
|
||||||
|
"testing"
|
||||||
|
|
||||||
|
"github.com/docker/distribution"
|
||||||
|
"github.com/docker/distribution/context"
|
||||||
|
"github.com/docker/distribution/registry/storage/cache/memory"
|
||||||
|
"github.com/docker/distribution/registry/storage/driver"
|
||||||
|
"github.com/docker/distribution/registry/storage/driver/inmemory"
|
||||||
|
)
|
||||||
|
|
||||||
|
type setupEnv struct {
|
||||||
|
ctx context.Context
|
||||||
|
driver driver.StorageDriver
|
||||||
|
expected []string
|
||||||
|
registry distribution.Namespace
|
||||||
|
}
|
||||||
|
|
||||||
|
func setupFS(t *testing.T) *setupEnv {
|
||||||
|
d := inmemory.New()
|
||||||
|
c := []byte("")
|
||||||
|
ctx := context.Background()
|
||||||
|
registry := NewRegistryWithDriver(ctx, d, memory.NewInMemoryBlobDescriptorCacheProvider())
|
||||||
|
rootpath, _ := defaultPathMapper.path(repositoriesRootPathSpec{})
|
||||||
|
|
||||||
|
repos := []string{
|
||||||
|
"/foo/a/_layers/1",
|
||||||
|
"/foo/b/_layers/2",
|
||||||
|
"/bar/c/_layers/3",
|
||||||
|
"/bar/d/_layers/4",
|
||||||
|
"/foo/d/in/_layers/5",
|
||||||
|
"/an/invalid/repo",
|
||||||
|
"/bar/d/_layers/ignored/dir/6",
|
||||||
|
}
|
||||||
|
|
||||||
|
for _, repo := range repos {
|
||||||
|
if err := d.PutContent(ctx, rootpath+repo, c); err != nil {
|
||||||
|
t.Fatalf("Unable to put to inmemory fs")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
expected := []string{
|
||||||
|
"bar/c",
|
||||||
|
"bar/d",
|
||||||
|
"foo/a",
|
||||||
|
"foo/b",
|
||||||
|
"foo/d/in",
|
||||||
|
}
|
||||||
|
|
||||||
|
return &setupEnv{
|
||||||
|
ctx: ctx,
|
||||||
|
driver: d,
|
||||||
|
expected: expected,
|
||||||
|
registry: registry,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestCatalog(t *testing.T) {
|
||||||
|
env := setupFS(t)
|
||||||
|
|
||||||
|
p := make([]string, 50)
|
||||||
|
|
||||||
|
numFilled, err := env.registry.Repositories(env.ctx, p, "")
|
||||||
|
|
||||||
|
if !testEq(p, env.expected, numFilled) {
|
||||||
|
t.Errorf("Expected catalog repos err")
|
||||||
|
}
|
||||||
|
|
||||||
|
if err != io.EOF {
|
||||||
|
t.Errorf("Catalog has more values which we aren't expecting")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestCatalogInParts(t *testing.T) {
|
||||||
|
env := setupFS(t)
|
||||||
|
|
||||||
|
chunkLen := 2
|
||||||
|
p := make([]string, chunkLen)
|
||||||
|
|
||||||
|
numFilled, err := env.registry.Repositories(env.ctx, p, "")
|
||||||
|
if err == io.EOF || numFilled != len(p) {
|
||||||
|
t.Errorf("Expected more values in catalog")
|
||||||
|
}
|
||||||
|
|
||||||
|
if !testEq(p, env.expected[0:chunkLen], numFilled) {
|
||||||
|
t.Errorf("Expected catalog first chunk err")
|
||||||
|
}
|
||||||
|
|
||||||
|
lastRepo := p[len(p)-1]
|
||||||
|
numFilled, err = env.registry.Repositories(env.ctx, p, lastRepo)
|
||||||
|
|
||||||
|
if err == io.EOF || numFilled != len(p) {
|
||||||
|
t.Errorf("Expected more values in catalog")
|
||||||
|
}
|
||||||
|
|
||||||
|
if !testEq(p, env.expected[chunkLen:chunkLen*2], numFilled) {
|
||||||
|
t.Errorf("Expected catalog second chunk err")
|
||||||
|
}
|
||||||
|
|
||||||
|
lastRepo = p[len(p)-1]
|
||||||
|
numFilled, err = env.registry.Repositories(env.ctx, p, lastRepo)
|
||||||
|
|
||||||
|
if err != io.EOF {
|
||||||
|
t.Errorf("Catalog has more values which we aren't expecting")
|
||||||
|
}
|
||||||
|
|
||||||
|
if !testEq(p, env.expected[chunkLen*2:chunkLen*3-1], numFilled) {
|
||||||
|
t.Errorf("Expected catalog third chunk err")
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
func testEq(a, b []string, size int) bool {
|
||||||
|
for cnt := 0; cnt < size-1; cnt++ {
|
||||||
|
if a[cnt] != b[cnt] {
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return true
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue