mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
455e837e20
namespaces are not well documented, and I had to jump around to other docs. replacing `foo/bar` hopefully makes what's going on here a bit more obvious. Docker-DCO-1.1-Signed-off-by: Tim Ruffles <timruffles@gmail.com> (github: timruffles)
513 lines
14 KiB
Markdown
513 lines
14 KiB
Markdown
page_title: Registry API
|
||
page_description: API Documentation for Docker Registry
|
||
page_keywords: API, Docker, index, registry, REST, documentation
|
||
|
||
# Docker Registry API
|
||
|
||
## Introduction
|
||
|
||
- This is the REST API for the Docker Registry
|
||
- It stores the images and the graph for a set of repositories
|
||
- It does not have user accounts data
|
||
- It has no notion of user accounts or authorization
|
||
- It delegates authentication and authorization to the Index Auth
|
||
service using tokens
|
||
- It supports different storage backends (S3, cloud files, local FS)
|
||
- It doesn't have a local database
|
||
- It will be open-sourced at some point
|
||
|
||
We expect that there will be multiple registries out there. To help to
|
||
grasp the context, here are some examples of registries:
|
||
|
||
- **sponsor registry**: such a registry is provided by a third-party
|
||
hosting infrastructure as a convenience for their customers and the
|
||
docker community as a whole. Its costs are supported by the third
|
||
party, but the management and operation of the registry are
|
||
supported by dotCloud. It features read/write access, and delegates
|
||
authentication and authorization to the Index.
|
||
- **mirror registry**: such a registry is provided by a third-party
|
||
hosting infrastructure but is targeted at their customers only. Some
|
||
mechanism (unspecified to date) ensures that public images are
|
||
pulled from a sponsor registry to the mirror registry, to make sure
|
||
that the customers of the third-party provider can “docker pull”
|
||
those images locally.
|
||
- **vendor registry**: such a registry is provided by a software
|
||
vendor, who wants to distribute docker images. It would be operated
|
||
and managed by the vendor. Only users authorized by the vendor would
|
||
be able to get write access. Some images would be public (accessible
|
||
for anyone), others private (accessible only for authorized users).
|
||
Authentication and authorization would be delegated to the Index.
|
||
The goal of vendor registries is to let someone do “docker pull
|
||
basho/riak1.3” and automatically push from the vendor registry
|
||
(instead of a sponsor registry); i.e. get all the convenience of a
|
||
sponsor registry, while retaining control on the asset distribution.
|
||
- **private registry**: such a registry is located behind a firewall,
|
||
or protected by an additional security layer (HTTP authorization,
|
||
SSL client-side certificates, IP address authorization...). The
|
||
registry is operated by a private entity, outside of dotCloud's
|
||
control. It can optionally delegate additional authorization to the
|
||
Index, but it is not mandatory.
|
||
|
||
> **Note**:
|
||
> Mirror registries and private registries which do not use the Index
|
||
> don't even need to run the registry code. They can be implemented by any
|
||
> kind of transport implementing HTTP GET and PUT. Read-only registries
|
||
> can be powered by a simple static HTTP server.
|
||
|
||
> **Note**:
|
||
> The latter implies that while HTTP is the protocol of choice for a registry,
|
||
> multiple schemes are possible (and in some cases, trivial):
|
||
>
|
||
> - HTTP with GET (and PUT for read-write registries);
|
||
> - local mount point;
|
||
> - remote docker addressed through SSH.
|
||
|
||
The latter would only require two new commands in docker, e.g.,
|
||
`registryget` and `registryput`, wrapping access to the local filesystem
|
||
(and optionally doing consistency checks). Authentication and authorization
|
||
are then delegated to SSH (e.g., with public keys).
|
||
|
||
The default namespace for a private repository is `library`.
|
||
|
||
# Endpoints
|
||
|
||
## Images
|
||
|
||
### Layer
|
||
|
||
`GET /v1/images/(image_id)/layer`
|
||
|
||
Get image layer for a given `image_id`
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/images/088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c/layer HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Authorization: Token signature=123abc,repository="foo/bar",access=read
|
||
|
||
Parameters:
|
||
|
||
- **image_id** – the id for the layer you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
X-Docker-Registry-Version: 0.6.0
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
{layer binary data stream}
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Image not found
|
||
|
||
`PUT /v1/images/(image_id)/layer`
|
||
|
||
Put image layer for a given `image_id`
|
||
|
||
**Example Request**:
|
||
|
||
PUT /v1/images/088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c/layer HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Transfer-Encoding: chunked
|
||
Authorization: Token signature=123abc,repository="foo/bar",access=write
|
||
|
||
{layer binary data stream}
|
||
|
||
Parameters:
|
||
|
||
- **image_id** – the id for the layer you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Image not found
|
||
|
||
## Image
|
||
|
||
`PUT /v1/images/(image_id)/json`
|
||
|
||
Put image for a given `image_id`
|
||
|
||
**Example Request**:
|
||
|
||
PUT /v1/images/088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c/json HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
{
|
||
id: "088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c",
|
||
parent: "aeee6396d62273d180a49c96c62e45438d87c7da4a5cf5d2be6bee4e21bc226f",
|
||
created: "2013-04-30T17:46:10.843673+03:00",
|
||
container: "8305672a76cc5e3d168f97221106ced35a76ec7ddbb03209b0f0d96bf74f6ef7",
|
||
container_config: {
|
||
Hostname: "host-test",
|
||
User: "",
|
||
Memory: 0,
|
||
MemorySwap: 0,
|
||
AttachStdin: false,
|
||
AttachStdout: false,
|
||
AttachStderr: false,
|
||
PortSpecs: null,
|
||
Tty: false,
|
||
OpenStdin: false,
|
||
StdinOnce: false,
|
||
Env: null,
|
||
Cmd: [
|
||
"/bin/bash",
|
||
"-c",
|
||
"apt-get -q -yy -f install libevent-dev"
|
||
],
|
||
Dns: null,
|
||
Image: "imagename/blah",
|
||
Volumes: { },
|
||
VolumesFrom: ""
|
||
},
|
||
docker_version: "0.1.7"
|
||
}
|
||
|
||
Parameters:
|
||
|
||
- **image_id** – the id for the layer you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
|
||
`GET /v1/images/(image_id)/json`
|
||
|
||
Get image for a given `image_id`
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/images/088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c/json HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
Parameters:
|
||
|
||
- **image_id** – the id for the layer you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
X-Docker-Size: 456789
|
||
X-Docker-Checksum: b486531f9a779a0c17e3ed29dae8f12c4f9e89cc6f0bc3c38722009fe6857087
|
||
|
||
{
|
||
id: "088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c",
|
||
parent: "aeee6396d62273d180a49c96c62e45438d87c7da4a5cf5d2be6bee4e21bc226f",
|
||
created: "2013-04-30T17:46:10.843673+03:00",
|
||
container: "8305672a76cc5e3d168f97221106ced35a76ec7ddbb03209b0f0d96bf74f6ef7",
|
||
container_config: {
|
||
Hostname: "host-test",
|
||
User: "",
|
||
Memory: 0,
|
||
MemorySwap: 0,
|
||
AttachStdin: false,
|
||
AttachStdout: false,
|
||
AttachStderr: false,
|
||
PortSpecs: null,
|
||
Tty: false,
|
||
OpenStdin: false,
|
||
StdinOnce: false,
|
||
Env: null,
|
||
Cmd: [
|
||
"/bin/bash",
|
||
"-c",
|
||
"apt-get -q -yy -f install libevent-dev"
|
||
],
|
||
Dns: null,
|
||
Image: "imagename/blah",
|
||
Volumes: { },
|
||
VolumesFrom: ""
|
||
},
|
||
docker_version: "0.1.7"
|
||
}
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Image not found
|
||
|
||
## Ancestry
|
||
|
||
`GET /v1/images/(image_id)/ancestry`
|
||
|
||
Get ancestry for an image given an `image_id`
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/images/088b4505aa3adc3d35e79c031fa126b403200f02f51920fbd9b7c503e87c7a2c/ancestry HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
Parameters:
|
||
|
||
- **image_id** – the id for the layer you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
["088b4502f51920fbd9b7c503e87c7a2c05aa3adc3d35e79c031fa126b403200f",
|
||
"aeee63968d87c7da4a5cf5d2be6bee4e21bc226fd62273d180a49c96c62e4543",
|
||
"bfa4c5326bc764280b0863b46a4b20d940bc1897ef9c1dfec060604bdc383280",
|
||
"6ab5893c6927c15a15665191f2c6cf751f5056d8b95ceee32e43c5e8a3648544"]
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Image not found
|
||
|
||
## Tags
|
||
|
||
`GET /v1/repositories/(namespace)/(repository)/tags`
|
||
|
||
Get all of the tags for the given repo.
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/repositories/reynholm/help-system-server/tags HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
Parameters:
|
||
|
||
- **namespace** – namespace for the repo
|
||
- **repository** – name for the repo
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
{
|
||
"latest": "9e89cc6f0bc3c38722009fe6857087b486531f9a779a0c17e3ed29dae8f12c4f",
|
||
"0.1.1": "b486531f9a779a0c17e3ed29dae8f12c4f9e89cc6f0bc3c38722009fe6857087"
|
||
}
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Repository not found
|
||
|
||
`GET /v1/repositories/(namespace)/(repository)/tags/(tag*)`
|
||
|
||
Get a tag for the given repo.
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/repositories/reynholm/help-system-server/tags/latest HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
Parameters:
|
||
|
||
- **namespace** – namespace for the repo
|
||
- **repository** – name for the repo
|
||
- **tag** – name of tag you want to get
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
"9e89cc6f0bc3c38722009fe6857087b486531f9a779a0c17e3ed29dae8f12c4f"
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Tag not found
|
||
|
||
`DELETE /v1/repositories/(namespace)/(repository)/tags/(tag*)`
|
||
|
||
Delete the tag for the repo
|
||
|
||
**Example Request**:
|
||
|
||
DELETE /v1/repositories/reynholm/help-system-server/tags/latest HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
Parameters:
|
||
|
||
- **namespace** – namespace for the repo
|
||
- **repository** – name for the repo
|
||
- **tag** – name of tag you want to delete
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Tag not found
|
||
|
||
`PUT /v1/repositories/(namespace)/(repository)/tags/(tag*)`
|
||
|
||
Put a tag for the given repo.
|
||
|
||
**Example Request**:
|
||
|
||
PUT /v1/repositories/reynholm/help-system-server/tags/latest HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
"9e89cc6f0bc3c38722009fe6857087b486531f9a779a0c17e3ed29dae8f12c4f"
|
||
|
||
Parameters:
|
||
|
||
- **namespace** – namespace for the repo
|
||
- **repository** – name for the repo
|
||
- **tag** – name of tag you want to add
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **400** – Invalid data
|
||
- **401** – Requires authorization
|
||
- **404** – Image not found
|
||
|
||
## Repositories
|
||
|
||
`DELETE /v1/repositories/(namespace)/(repository)/`
|
||
|
||
Delete a repository
|
||
|
||
**Example Request**:
|
||
|
||
DELETE /v1/repositories/reynholm/help-system-server/ HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
Cookie: (Cookie provided by the Registry)
|
||
|
||
""
|
||
|
||
Parameters:
|
||
|
||
- **namespace** – namespace for the repo
|
||
- **repository** – name for the repo
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
- **401** – Requires authorization
|
||
- **404** – Repository not found
|
||
|
||
## Status
|
||
|
||
`GET /v1/_ping`
|
||
|
||
Check status of the registry. This endpoint is also used to
|
||
determine if the registry supports SSL.
|
||
|
||
**Example Request**:
|
||
|
||
GET /v1/_ping HTTP/1.1
|
||
Host: registry-1.docker.io
|
||
Accept: application/json
|
||
Content-Type: application/json
|
||
|
||
""
|
||
|
||
**Example Response**:
|
||
|
||
HTTP/1.1 200
|
||
Vary: Accept
|
||
Content-Type: application/json
|
||
X-Docker-Registry-Version: 0.6.0
|
||
|
||
""
|
||
|
||
Status Codes:
|
||
|
||
- **200** – OK
|
||
|
||
## Authorization
|
||
|
||
This is where we describe the authorization process, including the
|
||
tokens and cookies.
|
||
|
||
TODO: add more info.
|