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moby--moby/docs/sources/api/docker_remote_api.rst
Guillaume J. Charmes 9bc71c101c Merge pull request #719 from dotcloud/json_stream-feature 
* API: push, pull, import, insert -> Json Stream
2013-05-31 16:05:15 -07:00

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: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..."}
{"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..."}
{"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..."}
{"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,
"Version":"0.2.2",
"Images":16,
"GoVersion":"go1.0.3",
"Debug":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",
"MemoryLimit":true,
"SwapLimit":false
}
: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.
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