:title: Remote API
:description: API Documentation for Docker
:keywords: API, Docker, rcli, REST, documentation
=================
Docker Remote API
=================
.. contents:: Table of Contents
1. Brief introduction
=====================
- The Remote API is replacing rcli
- Default port in the docker deamon is 4243
- The API tends to be REST, but for some complex commands, like attach or pull, the HTTP connection is hijacked to transport stdout stdin and stderr
2. Version
==========
The current verson of the API is 1.1
Calling /images/<name>/insert is the same as calling /v1.1/images/<name>/insert
You can still call an old version of the api using /v1.0/images/<name>/insert
3. Endpoints
============
3.1 Containers
--------------
List containers
***************
.. http:get:: /containers/json
List containers
**Example request**:
.. sourcecode:: http
GET /containers/json?all=1&before=8dfafdbc3a40 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"Id": "8dfafdbc3a40",
"Image": "base:latest",
"Command": "echo 1",
"Created": 1367854155,
"Status": "Exit 0"
},
{
"Id": "9cd87474be90",
"Image": "base:latest",
"Command": "echo 222222",
"Created": 1367854155,
"Status": "Exit 0"
},
{
"Id": "3176a2479c92",
"Image": "base:latest",
"Command": "echo 3333333333333333",
"Created": 1367854154,
"Status": "Exit 0"
},
{
"Id": "4cb07b47f9fb",
"Image": "base:latest",
"Command": "echo 444444444444444444444444444444444",
"Created": 1367854152,
"Status": "Exit 0"
}
]
:query all: 1/True/true or 0/False/false, Show all containers. Only running containers are shown by default
:query limit: Show ``limit`` last created containers, include non-running ones.
:query since: Show only containers created since Id, include non-running ones.
:query before: Show only containers created before Id, include non-running ones.
:statuscode 200: no error
:statuscode 400: bad parameter
:statuscode 500: server error
Create a container
******************
.. http:post:: /containers/create
Create a container
**Example request**:
.. sourcecode:: http
POST /containers/create HTTP/1.1
Content-Type: application/json
{
"Hostname":"",
"User":"",
"Memory":0,
"MemorySwap":0,
"AttachStdin":false,
"AttachStdout":true,
"AttachStderr":true,
"PortSpecs":null,
"Tty":false,
"OpenStdin":false,
"StdinOnce":false,
"Env":null,
"Cmd":[
"date"
],
"Dns":null,
"Image":"base",
"Volumes":{},
"VolumesFrom":""
}
**Example response**:
.. sourcecode:: http
HTTP/1.1 201 OK
Content-Type: application/json
{
"Id":"e90e34656806"
"Warnings":[]
}
:jsonparam config: the container's configuration
:statuscode 201: no error
:statuscode 404: no such container
:statuscode 406: impossible to attach (container not running)
:statuscode 500: server error
Inspect a container
*******************
.. http:get:: /containers/(id)/json
Return low-level information on the container ``id``
**Example request**:
.. sourcecode:: http
GET /containers/4fa6e0f0c678/json HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{
"Id": "4fa6e0f0c6786287e131c3852c58a2e01cc697a68231826813597e4994f1d6e2",
"Created": "2013-05-07T14:51:42.041847+02:00",
"Path": "date",
"Args": [],
"Config": {
"Hostname": "4fa6e0f0c678",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"AttachStdin": false,
"AttachStdout": true,
"AttachStderr": true,
"PortSpecs": null,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": [
"date"
],
"Dns": null,
"Image": "base",
"Volumes": {},
"VolumesFrom": ""
},
"State": {
"Running": false,
"Pid": 0,
"ExitCode": 0,
"StartedAt": "2013-05-07T14:51:42.087658+02:01360",
"Ghost": false
},
"Image": "b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc",
"NetworkSettings": {
"IpAddress": "",
"IpPrefixLen": 0,
"Gateway": "",
"Bridge": "",
"PortMapping": null
},
"SysInitPath": "/home/kitty/go/src/github.com/dotcloud/docker/bin/docker",
"ResolvConfPath": "/etc/resolv.conf",
"Volumes": {}
}
:statuscode 200: no error
:statuscode 404: no such container
:statuscode 500: server error
Inspect changes on a container's filesystem
*******************************************
.. http:get:: /containers/(id)/changes
Inspect changes on container ``id`` 's filesystem
**Example request**:
.. sourcecode:: http
GET /containers/4fa6e0f0c678/changes HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"Path":"/dev",
"Kind":0
},
{
"Path":"/dev/kmsg",
"Kind":1
},
{
"Path":"/test",
"Kind":1
}
]
:statuscode 200: no error
:statuscode 404: no such container
:statuscode 500: server error
Export a container
******************
.. http:get:: /containers/(id)/export
Export the contents of container ``id``
**Example request**:
.. sourcecode:: http
GET /containers/4fa6e0f0c678/export HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/octet-stream
{{ STREAM }}
:statuscode 200: no error
:statuscode 404: no such container
:statuscode 500: server error
Start a container
*****************
.. http:post:: /containers/(id)/start
Start the container ``id``
**Example request**:
.. sourcecode:: http
POST /containers/e90e34656806/start HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
:statuscode 200: no error
:statuscode 404: no such container
:statuscode 500: server error
Stop a contaier
***************
.. http:post:: /containers/(id)/stop
Stop the container ``id``
**Example request**:
.. sourcecode:: http
POST /containers/e90e34656806/stop?t=5 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 204 OK
:query t: number of seconds to wait before killing the container
:statuscode 204: no error
:statuscode 404: no such container
:statuscode 500: server error
Restart a container
*******************
.. http:post:: /containers/(id)/restart
Restart the container ``id``
**Example request**:
.. sourcecode:: http
POST /containers/e90e34656806/restart?t=5 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 204 OK
:query t: number of seconds to wait before killing the container
:statuscode 204: no error
:statuscode 404: no such container
:statuscode 500: server error
Kill a container
****************
.. http:post:: /containers/(id)/kill
Kill the container ``id``
**Example request**:
.. sourcecode:: http
POST /containers/e90e34656806/kill HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 204 OK
:statuscode 204: no error
:statuscode 404: no such container
:statuscode 500: server error
Attach to a container
*********************
.. http:post:: /containers/(id)/attach
Attach to the container ``id``
**Example request**:
.. sourcecode:: http
POST /containers/16253994b7c4/attach?logs=1&stream=0&stdout=1 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/vnd.docker.raw-stream
{{ STREAM }}
:query logs: 1/True/true or 0/False/false, return logs. Default false
:query stream: 1/True/true or 0/False/false, return stream. Default false
:query stdin: 1/True/true or 0/False/false, if stream=true, attach to stdin. Default false
:query stdout: 1/True/true or 0/False/false, if logs=true, return stdout log, if stream=true, attach to stdout. Default false
:query stderr: 1/True/true or 0/False/false, if logs=true, return stderr log, if stream=true, attach to stderr. Default false
:statuscode 200: no error
:statuscode 400: bad parameter
:statuscode 404: no such container
:statuscode 500: server error
Wait a container
****************
.. http:post:: /containers/(id)/wait
Block until container ``id`` stops, then returns the exit code
**Example request**:
.. sourcecode:: http
POST /containers/16253994b7c4/wait HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{"StatusCode":0}
:statuscode 200: no error
:statuscode 404: no such container
:statuscode 500: server error
Remove a container
*******************
.. http:delete:: /containers/(id)
Remove the container ``id`` from the filesystem
**Example request**:
.. sourcecode:: http
DELETE /containers/16253994b7c4?v=1 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 204 OK
:query v: 1/True/true or 0/False/false, Remove the volumes associated to the container. Default false
:statuscode 204: no error
:statuscode 400: bad parameter
:statuscode 404: no such container
:statuscode 500: server error
3.2 Images
----------
List Images
***********
.. http:get:: /images/(format)
List images ``format`` could be json or viz (json default)
**Example request**:
.. sourcecode:: http
GET /images/json?all=0 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"Repository":"base",
"Tag":"ubuntu-12.10",
"Id":"b750fe79269d",
"Created":1364102658
},
{
"Repository":"base",
"Tag":"ubuntu-quantal",
"Id":"b750fe79269d",
"Created":1364102658
}
]
**Example request**:
.. sourcecode:: http
GET /images/viz HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: text/plain
digraph docker {
"d82cbacda43a" -> "074be284591f"
"1496068ca813" -> "08306dc45919"
"08306dc45919" -> "0e7893146ac2"
"b750fe79269d" -> "1496068ca813"
base -> "27cf78414709" [style=invis]
"f71189fff3de" -> "9a33b36209ed"
"27cf78414709" -> "b750fe79269d"
"0e7893146ac2" -> "d6434d954665"
"d6434d954665" -> "d82cbacda43a"
base -> "e9aa60c60128" [style=invis]
"074be284591f" -> "f71189fff3de"
"b750fe79269d" [label="b750fe79269d\nbase",shape=box,fillcolor="paleturquoise",style="filled,rounded"];
"e9aa60c60128" [label="e9aa60c60128\nbase2",shape=box,fillcolor="paleturquoise",style="filled,rounded"];
"9a33b36209ed" [label="9a33b36209ed\ntest",shape=box,fillcolor="paleturquoise",style="filled,rounded"];
base [style=invisible]
}
:query all: 1/True/true or 0/False/false, Show all containers. Only running containers are shown by default
:statuscode 200: no error
:statuscode 400: bad parameter
:statuscode 500: server error
Create an image
***************
.. http:post:: /images/create
Create an image, either by pull it from the registry or by importing it
**Example request**:
.. sourcecode:: http
POST /images/create?fromImage=base HTTP/1.1
**Example response v1.1**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{"status":"Pulling..."}
{"status":"Pulling", "progress":"1/? (n/a)"}
{"error":"Invalid..."}
...
**Example response v1.0**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/vnd.docker.raw-stream
{{ STREAM }}
:query fromImage: name of the image to pull
:query fromSrc: source to import, - means stdin
:query repo: repository
:query tag: tag
:query registry: the registry to pull from
:statuscode 200: no error
:statuscode 500: server error
Insert a file in a image
************************
.. http:post:: /images/(name)/insert
Insert a file from ``url`` in the image ``name`` at ``path``
**Example request**:
.. sourcecode:: http
POST /images/test/insert?path=/usr&url=myurl HTTP/1.1
**Example response v1.1**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{"status":"Inserting..."}
{"status":"Inserting", "progress":"1/? (n/a)"}
{"error":"Invalid..."}
...
**Example response v1.0**:
.. sourcecode:: http
HTTP/1.1 200 OK
{{ STREAM }}
:statuscode 200: no error
:statuscode 500: server error
Inspect an image
****************
.. http:get:: /images/(name)/json
Return low-level information on the image ``name``
**Example request**:
.. sourcecode:: http
GET /images/base/json HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{
"id":"b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc",
"parent":"27cf784147099545",
"created":"2013-03-23T22:24:18.818426-07:00",
"container":"3d67245a8d72ecf13f33dffac9f79dcdf70f75acb84d308770391510e0c23ad0",
"container_config":
{
"Hostname":"",
"User":"",
"Memory":0,
"MemorySwap":0,
"AttachStdin":false,
"AttachStdout":false,
"AttachStderr":false,
"PortSpecs":null,
"Tty":true,
"OpenStdin":true,
"StdinOnce":false,
"Env":null,
"Cmd": ["/bin/bash"]
,"Dns":null,
"Image":"base",
"Volumes":null,
"VolumesFrom":""
}
}
:statuscode 200: no error
:statuscode 404: no such image
:statuscode 500: server error
Get the history of an image
***************************
.. http:get:: /images/(name)/history
Return the history of the image ``name``
**Example request**:
.. sourcecode:: http
GET /images/base/history HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"Id":"b750fe79269d",
"Created":1364102658,
"CreatedBy":"/bin/bash"
},
{
"Id":"27cf78414709",
"Created":1364068391,
"CreatedBy":""
}
]
:statuscode 200: no error
:statuscode 404: no such image
:statuscode 500: server error
Push an image on the registry
*****************************
.. http:post:: /images/(name)/push
Push the image ``name`` on the registry
**Example request**:
.. sourcecode:: http
POST /images/test/push HTTP/1.1
**Example response v1.1**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{"status":"Pushing..."}
{"status":"Pushing", "progress":"1/? (n/a)"}
{"error":"Invalid..."}
...
**Example response v1.0**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/vnd.docker.raw-stream
{{ STREAM }}
:query registry: the registry you wan to push, optional
:statuscode 200: no error
:statuscode 404: no such image
:statuscode 500: server error
Tag an image into a repository
******************************
.. http:post:: /images/(name)/tag
Tag the image ``name`` into a repository
**Example request**:
.. sourcecode:: http
POST /images/test/tag?repo=myrepo&force=0 HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
:query repo: The repository to tag in
:query force: 1/True/true or 0/False/false, default false
:statuscode 200: no error
:statuscode 400: bad parameter
:statuscode 404: no such image
:statuscode 500: server error
Remove an image
***************
.. http:delete:: /images/(name)
Remove the image ``name`` from the filesystem
**Example request**:
.. sourcecode:: http
DELETE /images/test HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 204 OK
:statuscode 204: no error
:statuscode 404: no such image
:statuscode 500: server error
Search images
*************
.. http:get:: /images/search
Search for an image in the docker index
**Example request**:
.. sourcecode:: http
GET /images/search?term=sshd HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"Name":"cespare/sshd",
"Description":""
},
{
"Name":"johnfuller/sshd",
"Description":""
},
{
"Name":"dhrp/mongodb-sshd",
"Description":""
}
]
:query term: term to search
:statuscode 200: no error
:statuscode 500: server error
3.3 Misc
--------
Build an image from Dockerfile via stdin
****************************************
.. http:post:: /build
Build an image from Dockerfile via stdin
**Example request**:
.. sourcecode:: http
POST /build HTTP/1.1
{{ STREAM }}
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
{{ STREAM }}
:query t: tag to be applied to the resulting image in case of success
:statuscode 200: no error
:statuscode 500: server error
Get default username and email
******************************
.. http:get:: /auth
Get the default username and email
**Example request**:
.. sourcecode:: http
GET /auth HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{
"username":"hannibal",
"email":"hannibal@a-team.com"
}
:statuscode 200: no error
:statuscode 500: server error
Set auth configuration
**********************
.. http:post:: /auth
Get the default username and email
**Example request**:
.. sourcecode:: http
POST /auth HTTP/1.1
Content-Type: application/json
{
"username":"hannibal",
"password:"xxxx",
"email":"hannibal@a-team.com"
}
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
:statuscode 200: no error
:statuscode 204: no error
:statuscode 500: server error
Display system-wide information
*******************************
.. http:get:: /info
Display system-wide information
**Example request**:
.. sourcecode:: http
GET /info HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{
"Containers":11,
"Images":16,
"Debug":false,
"NFd": 11,
"NGoroutines":21,
"MemoryLimit":true,
"SwapLimit":false
}
:statuscode 200: no error
:statuscode 500: server error
Show the docker version information
***********************************
.. http:get:: /version
Show the docker version information
**Example request**:
.. sourcecode:: http
GET /version HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
{
"Version":"0.2.2",
"GitCommit":"5a2a5cc+CHANGES",
"GoVersion":"go1.0.3"
}
:statuscode 200: no error
:statuscode 500: server error
Create a new image from a container's changes
*********************************************
.. http:post:: /commit
Create a new image from a container's changes
**Example request**:
.. sourcecode:: http
POST /commit?container=44c004db4b17&m=message&repo=myrepo HTTP/1.1
**Example response**:
.. sourcecode:: http
HTTP/1.1 201 OK
Content-Type: application/vnd.docker.raw-stream
{"Id":"596069db4bf5"}
:query container: source container
:query repo: repository
:query tag: tag
:query m: commit message
:query author: author (eg. "John Hannibal Smith <hannibal@a-team.com>")
:query run: config automatically applied when the image is run. (ex: {"Cmd": ["cat", "/world"], "PortSpecs":["22"]})
:statuscode 201: no error
:statuscode 404: no such container
:statuscode 500: server error
3. Going further
================
3.1 Inside 'docker run'
-----------------------
Here are the steps of 'docker run' :
* Create the container
* If the status code is 404, it means the image doesn't exists:
* Try to pull it
* Then retry to create the container
* Start the container
* If you are not in detached mode:
* Attach to the container, using logs=1 (to have stdout and stderr from the container's start) and stream=1
* If in detached mode or only stdin is attached:
* Display the container's id
3.2 Hijacking
-------------
In this first version of the API, some of the endpoints, like /attach, /pull or /push uses hijacking to transport stdin,
stdout and stderr on the same socket. This might change in the future.
3.3 CORS Requests
-----------------
To enable cross origin requests to the remote api add the flag "-api-enable-cors" when running docker in daemon mode.
docker -d -H="192.168.1.9:4243" -api-enable-cors
==================================
Docker Remote API Client Libraries
==================================
These libraries have been not tested by the Docker Maintainers for
compatibility. Please file issues with the library owners. If you
find more library implementations, please list them in Docker doc bugs
and we will add the libraries here.
+----------------------+----------------+--------------------------------------------+
| Language/Framework | Name | Repository |
+======================+================+============================================+
| Python | docker-py | https://github.com/dotcloud/docker-py |
+----------------------+----------------+--------------------------------------------+
| Ruby | docker-ruby | https://github.com/ActiveState/docker-ruby |
+----------------------+----------------+--------------------------------------------+
| Ruby | docker-client | https://github.com/geku/docker-client |
+----------------------+----------------+--------------------------------------------+
| Javascript | docker-js | https://github.com/dgoujard/docker-js |
+----------------------+----------------+--------------------------------------------+
| Javascript (Angular) | dockerui | https://github.com/crosbymichael/dockerui |
| **WebUI** | | |
+----------------------+----------------+--------------------------------------------+