a5a77979dd
These query-args were documented, but not actually supported until
ea6760138c (API v1.42).
This removes them from the documentation, as these arguments were ignored
(and defaulted to `true` (enabled))
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2173 lines
58 KiB
Markdown
2173 lines
58 KiB
Markdown
---
|
||
title: "Engine API v1.18"
|
||
description: "API Documentation for Docker"
|
||
keywords: "API, Docker, rcli, REST, documentation"
|
||
redirect_from:
|
||
- /engine/reference/api/docker_remote_api_v1.18/
|
||
- /reference/api/docker_remote_api_v1.18/
|
||
---
|
||
|
||
<!-- This file is maintained within the moby/moby GitHub
|
||
repository at https://github.com/moby/moby/. Make all
|
||
pull requests against that repo. If you see this file in
|
||
another repository, consider it read-only there, as it will
|
||
periodically be overwritten by the definitive file. Pull
|
||
requests which include edits to this file in other repositories
|
||
will be rejected.
|
||
-->
|
||
|
||
## 1. Brief introduction
|
||
|
||
- The daemon listens on `unix:///var/run/docker.sock` but you can
|
||
[Bind Docker to another host/port or a Unix socket](https://docs.docker.com/engine/reference/commandline/dockerd/#bind-docker-to-another-host-port-or-a-unix-socket).
|
||
- 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`.
|
||
- A `Content-Length` header should be present in `POST` requests to endpoints
|
||
that expect a body.
|
||
- To lock to a specific version of the API, you prefix the URL with the version
|
||
of the API to use. For example, `/v1.18/info`. If no version is included in
|
||
the URL, the maximum supported API version is used.
|
||
- If the API version specified in the URL is not supported by the daemon, a HTTP
|
||
`400 Bad Request` error message is returned.
|
||
|
||
## 2. Endpoints
|
||
|
||
### 2.1 Containers
|
||
|
||
#### List containers
|
||
|
||
`GET /containers/json`
|
||
|
||
List containers
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/json?all=1&before=8dfafdbc3a40&size=1 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"Id": "8dfafdbc3a40",
|
||
"Names":["/boring_feynman"],
|
||
"Image": "ubuntu:latest",
|
||
"Command": "echo 1",
|
||
"Created": 1367854155,
|
||
"Status": "Exit 0",
|
||
"Ports": [{"PrivatePort": 2222, "PublicPort": 3333, "Type": "tcp"}],
|
||
"Labels": {
|
||
"com.example.vendor": "Acme",
|
||
"com.example.license": "GPL",
|
||
"com.example.version": "1.0"
|
||
},
|
||
"SizeRw": 12288,
|
||
"SizeRootFs": 0
|
||
},
|
||
{
|
||
"Id": "9cd87474be90",
|
||
"Names":["/coolName"],
|
||
"Image": "ubuntu:latest",
|
||
"Command": "echo 222222",
|
||
"Created": 1367854155,
|
||
"Status": "Exit 0",
|
||
"Ports": [],
|
||
"Labels": {},
|
||
"SizeRw": 12288,
|
||
"SizeRootFs": 0
|
||
},
|
||
{
|
||
"Id": "3176a2479c92",
|
||
"Names":["/sleepy_dog"],
|
||
"Image": "ubuntu:latest",
|
||
"Command": "echo 3333333333333333",
|
||
"Created": 1367854154,
|
||
"Status": "Exit 0",
|
||
"Ports":[],
|
||
"Labels": {},
|
||
"SizeRw":12288,
|
||
"SizeRootFs":0
|
||
},
|
||
{
|
||
"Id": "4cb07b47f9fb",
|
||
"Names":["/running_cat"],
|
||
"Image": "ubuntu:latest",
|
||
"Command": "echo 444444444444444444444444444444444",
|
||
"Created": 1367854152,
|
||
"Status": "Exit 0",
|
||
"Ports": [],
|
||
"Labels": {},
|
||
"SizeRw": 12288,
|
||
"SizeRootFs": 0
|
||
}
|
||
]
|
||
|
||
**Query parameters**:
|
||
|
||
- **all** – 1/True/true or 0/False/false, Show all containers.
|
||
Only running containers are shown by default (i.e., this defaults to false)
|
||
- **limit** – Show `limit` last created
|
||
containers, include non-running ones.
|
||
- **since** – Show only containers created since Id, include
|
||
non-running ones.
|
||
- **before** – Show only containers created before Id, include
|
||
non-running ones.
|
||
- **size** – 1/True/true or 0/False/false, Show the containers
|
||
sizes
|
||
- **filters** - a JSON encoded value of the filters (a `map[string][]string`) to process on the containers list. Available filters:
|
||
- `exited=<int>`; -- containers with exit code of `<int>` ;
|
||
- `status=`(`restarting`|`running`|`paused`|`exited`)
|
||
- `label=key` or `label="key=value"` of a container label
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **400** – bad parameter
|
||
- **500** – server error
|
||
|
||
#### Create a container
|
||
|
||
`POST /containers/create`
|
||
|
||
Create a container
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/create HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"Hostname": "",
|
||
"Domainname": "",
|
||
"User": "",
|
||
"AttachStdin": false,
|
||
"AttachStdout": true,
|
||
"AttachStderr": true,
|
||
"Tty": false,
|
||
"OpenStdin": false,
|
||
"StdinOnce": false,
|
||
"Env": [
|
||
"FOO=bar",
|
||
"BAZ=quux"
|
||
],
|
||
"Cmd": [
|
||
"date"
|
||
],
|
||
"Entrypoint": null,
|
||
"Image": "ubuntu",
|
||
"Labels": {
|
||
"com.example.vendor": "Acme",
|
||
"com.example.license": "GPL",
|
||
"com.example.version": "1.0"
|
||
},
|
||
"Volumes": {
|
||
"/volumes/data": {}
|
||
},
|
||
"WorkingDir": "",
|
||
"NetworkDisabled": false,
|
||
"MacAddress": "12:34:56:78:9a:bc",
|
||
"ExposedPorts": {
|
||
"22/tcp": {}
|
||
},
|
||
"HostConfig": {
|
||
"Binds": ["/tmp:/tmp"],
|
||
"Links": ["redis3:redis"],
|
||
"LxcConf": {"lxc.utsname":"docker"},
|
||
"Memory": 0,
|
||
"MemorySwap": 0,
|
||
"CpuShares": 512,
|
||
"CpusetCpus": "0,1",
|
||
"PidMode": "",
|
||
"PortBindings": { "22/tcp": [{ "HostPort": "11022" }] },
|
||
"PublishAllPorts": false,
|
||
"Privileged": false,
|
||
"ReadonlyRootfs": false,
|
||
"Dns": ["8.8.8.8"],
|
||
"DnsSearch": [""],
|
||
"ExtraHosts": null,
|
||
"VolumesFrom": ["parent", "other:ro"],
|
||
"CapAdd": ["NET_ADMIN"],
|
||
"CapDrop": ["MKNOD"],
|
||
"RestartPolicy": { "Name": "", "MaximumRetryCount": 0 },
|
||
"NetworkMode": "bridge",
|
||
"Devices": [],
|
||
"Ulimits": [{}],
|
||
"LogConfig": { "Type": "json-file", "Config": {} },
|
||
"SecurityOpt": [],
|
||
"CgroupParent": ""
|
||
}
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 201 Created
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Id":"e90e34656806",
|
||
"Warnings":[]
|
||
}
|
||
|
||
**JSON parameters**:
|
||
|
||
- **Hostname** - A string value containing the hostname to use for the
|
||
container.
|
||
- **Domainname** - A string value containing the domain name to use
|
||
for the container.
|
||
- **User** - A string value specifying the user inside the container.
|
||
- **AttachStdin** - Boolean value, attaches to `stdin`.
|
||
- **AttachStdout** - Boolean value, attaches to `stdout`.
|
||
- **AttachStderr** - Boolean value, attaches to `stderr`.
|
||
- **Tty** - Boolean value, Attach standard streams to a `tty`, including `stdin` if it is not closed.
|
||
- **OpenStdin** - Boolean value, opens `stdin`,
|
||
- **StdinOnce** - Boolean value, close `stdin` after the 1 attached client disconnects.
|
||
- **Env** - A list of environment variables in the form of `["VAR=value", ...]`
|
||
- **Labels** - Adds a map of labels to a container. To specify a map: `{"key":"value", ... }`
|
||
- **Cmd** - Command to run specified as a string or an array of strings.
|
||
- **Entrypoint** - Set the entry point for the container as a string or an array
|
||
of strings.
|
||
- **Image** - A string specifying the image name to use for the container.
|
||
- **Volumes** - An object mapping mount point paths (strings) inside the
|
||
container to empty objects.
|
||
- **WorkingDir** - A string specifying the working directory for commands to
|
||
run in.
|
||
- **NetworkDisabled** - Boolean value, when true disables networking for the
|
||
container
|
||
- **ExposedPorts** - An object mapping ports to an empty object in the form of:
|
||
`"ExposedPorts": { "<port>/<tcp|udp>: {}" }`
|
||
- **HostConfig**
|
||
- **Binds** – A list of bind mounts for this container. Each item is a string in one of these forms:
|
||
+ `host-src:container-dest` to bind-mount a host path into the
|
||
container. Both `host-src`, and `container-dest` must be an
|
||
_absolute_ path.
|
||
+ `host-src:container-dest:ro` to make the bind mount read-only
|
||
inside the container. Both `host-src`, and `container-dest` must be
|
||
an _absolute_ path.
|
||
- **Links** - A list of links for the container. Each link entry should be
|
||
in the form of `container_name:alias`.
|
||
- **LxcConf** - LXC specific configurations. These configurations only
|
||
work when using the `lxc` execution driver.
|
||
- **Memory** - Memory limit in bytes.
|
||
- **MemorySwap** - Total memory limit (memory + swap); set `-1` to enable unlimited swap.
|
||
You must use this with `memory` and make the swap value larger than `memory`.
|
||
- **CpuShares** - An integer value containing the container's CPU Shares
|
||
(ie. the relative weight vs other containers).
|
||
- **CpusetCpus** - String value containing the `cgroups CpusetCpus` to use.
|
||
- **PidMode** - Set the PID (Process) Namespace mode for the container;
|
||
`"container:<name|id>"`: joins another container's PID namespace
|
||
`"host"`: use the host's PID namespace inside the container
|
||
- **PortBindings** - A map of exposed container ports and the host port they
|
||
should map to. A JSON object in the form
|
||
`{ <port>/<protocol>: [{ "HostPort": "<port>" }] }`
|
||
Take note that `port` is specified as a string and not an integer value.
|
||
- **PublishAllPorts** - Allocates an ephemeral host port for all of a container's
|
||
exposed ports. Specified as a boolean value.
|
||
|
||
Ports are de-allocated when the container stops and allocated when the container starts.
|
||
The allocated port might be changed when restarting the container.
|
||
|
||
The port is selected from the ephemeral port range that depends on the kernel.
|
||
For example, on Linux the range is defined by `/proc/sys/net/ipv4/ip_local_port_range`.
|
||
- **Privileged** - Gives the container full access to the host. Specified as
|
||
a boolean value.
|
||
- **ReadonlyRootfs** - Mount the container's root filesystem as read only.
|
||
Specified as a boolean value.
|
||
- **Dns** - A list of DNS servers for the container to use.
|
||
- **DnsSearch** - A list of DNS search domains
|
||
- **ExtraHosts** - A list of hostnames/IP mappings to add to the
|
||
container's `/etc/hosts` file. Specified in the form `["hostname:IP"]`.
|
||
- **VolumesFrom** - A list of volumes to inherit from another container.
|
||
Specified in the form `<container name>[:<ro|rw>]`
|
||
- **CapAdd** - A list of kernel capabilities to add to the container.
|
||
- **Capdrop** - A list of kernel capabilities to drop from the container.
|
||
- **RestartPolicy** – The behavior to apply when the container exits. The
|
||
value is an object with a `Name` property of either `"always"` to
|
||
always restart or `"on-failure"` to restart only when the container
|
||
exit code is non-zero. If `on-failure` is used, `MaximumRetryCount`
|
||
controls the number of times to retry before giving up.
|
||
The default is not to restart. (optional)
|
||
An ever increasing delay (double the previous delay, starting at 100mS)
|
||
is added before each restart to prevent flooding the server.
|
||
- **NetworkMode** - Sets the networking mode for the container. Supported
|
||
values are: `bridge`, `host`, `none`, and `container:<name|id>`
|
||
- **Devices** - A list of devices to add to the container specified as a JSON object in the
|
||
form
|
||
`{ "PathOnHost": "/dev/deviceName", "PathInContainer": "/dev/deviceName", "CgroupPermissions": "mrw"}`
|
||
- **Ulimits** - A list of ulimits to set in the container, specified as
|
||
`{ "Name": <name>, "Soft": <soft limit>, "Hard": <hard limit> }`, for example:
|
||
`Ulimits: { "Name": "nofile", "Soft": 1024, "Hard": 2048 }`
|
||
- **SecurityOpt**: A list of string values to customize labels for MLS
|
||
systems, such as SELinux.
|
||
- **LogConfig** - Log configuration for the container, specified as a JSON object in the form
|
||
`{ "Type": "<driver_name>", "Config": {"key1": "val1"}}`.
|
||
Available types: `json-file`, `syslog`, `journald`, `none`.
|
||
`json-file` logging driver.
|
||
- **CgroupParent** - Path to `cgroups` under which the container's `cgroup` is created. If the path is not absolute, the path is considered to be relative to the `cgroups` path of the init process. Cgroups are created if they do not already exist.
|
||
|
||
**Query parameters**:
|
||
|
||
- **name** – Assign the specified name to the container. Must
|
||
match `/?[a-zA-Z0-9_-]+`.
|
||
|
||
**Status codes**:
|
||
|
||
- **201** – no error
|
||
- **400** – bad parameter
|
||
- **404** – no such image
|
||
- **406** – impossible to attach (container not running)
|
||
- **409** – conflict
|
||
- **500** – server error
|
||
|
||
#### Inspect a container
|
||
|
||
`GET /containers/(id or name)/json`
|
||
|
||
Return low-level information on the container `id`
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/json HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"AppArmorProfile": "",
|
||
"Args": [
|
||
"-c",
|
||
"exit 9"
|
||
],
|
||
"Config": {
|
||
"AttachStderr": true,
|
||
"AttachStdin": false,
|
||
"AttachStdout": true,
|
||
"Cmd": [
|
||
"/bin/sh",
|
||
"-c",
|
||
"exit 9"
|
||
],
|
||
"Domainname": "",
|
||
"Entrypoint": null,
|
||
"Env": [
|
||
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
||
],
|
||
"ExposedPorts": null,
|
||
"Hostname": "ba033ac44011",
|
||
"Image": "ubuntu",
|
||
"Labels": {
|
||
"com.example.vendor": "Acme",
|
||
"com.example.license": "GPL",
|
||
"com.example.version": "1.0"
|
||
},
|
||
"MacAddress": "",
|
||
"NetworkDisabled": false,
|
||
"OnBuild": null,
|
||
"OpenStdin": false,
|
||
"PortSpecs": null,
|
||
"StdinOnce": false,
|
||
"Tty": false,
|
||
"User": "",
|
||
"Volumes": null,
|
||
"WorkingDir": ""
|
||
},
|
||
"Created": "2015-01-06T15:47:31.485331387Z",
|
||
"Driver": "devicemapper",
|
||
"ExecDriver": "native-0.2",
|
||
"ExecIDs": null,
|
||
"HostConfig": {
|
||
"Binds": null,
|
||
"CapAdd": null,
|
||
"CapDrop": null,
|
||
"ContainerIDFile": "",
|
||
"CpusetCpus": "",
|
||
"CpuShares": 0,
|
||
"Devices": [],
|
||
"Dns": null,
|
||
"DnsSearch": null,
|
||
"ExtraHosts": null,
|
||
"IpcMode": "",
|
||
"Links": null,
|
||
"LxcConf": [],
|
||
"Memory": 0,
|
||
"MemorySwap": 0,
|
||
"NetworkMode": "bridge",
|
||
"PidMode": "",
|
||
"PortBindings": {},
|
||
"Privileged": false,
|
||
"ReadonlyRootfs": false,
|
||
"PublishAllPorts": false,
|
||
"RestartPolicy": {
|
||
"MaximumRetryCount": 2,
|
||
"Name": "on-failure"
|
||
},
|
||
"LogConfig": {
|
||
"Config": null,
|
||
"Type": "json-file"
|
||
},
|
||
"SecurityOpt": null,
|
||
"VolumesFrom": null,
|
||
"Ulimits": [{}]
|
||
},
|
||
"HostnamePath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/hostname",
|
||
"HostsPath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/hosts",
|
||
"LogPath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b-json.log",
|
||
"Id": "ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39",
|
||
"Image": "04c5d3b7b0656168630d3ba35d8889bd0e9caafcaeb3004d2bfbc47e7c5d35d2",
|
||
"MountLabel": "",
|
||
"Name": "/boring_euclid",
|
||
"NetworkSettings": {
|
||
"Bridge": "",
|
||
"Gateway": "",
|
||
"IPAddress": "",
|
||
"IPPrefixLen": 0,
|
||
"MacAddress": "",
|
||
"PortMapping": null,
|
||
"Ports": null
|
||
},
|
||
"Path": "/bin/sh",
|
||
"ProcessLabel": "",
|
||
"ResolvConfPath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/resolv.conf",
|
||
"RestartCount": 1,
|
||
"State": {
|
||
"Error": "",
|
||
"ExitCode": 9,
|
||
"FinishedAt": "2015-01-06T15:47:32.080254511Z",
|
||
"OOMKilled": false,
|
||
"Paused": false,
|
||
"Pid": 0,
|
||
"Restarting": false,
|
||
"Running": true,
|
||
"StartedAt": "2015-01-06T15:47:32.072697474Z"
|
||
},
|
||
"Volumes": {},
|
||
"VolumesRW": {}
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### List processes running inside a container
|
||
|
||
`GET /containers/(id or name)/top`
|
||
|
||
List processes running inside the container `id`. On Unix systems this
|
||
is done by running the `ps` command. This endpoint is not
|
||
supported on Windows.
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/top HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Titles" : [
|
||
"UID", "PID", "PPID", "C", "STIME", "TTY", "TIME", "CMD"
|
||
],
|
||
"Processes" : [
|
||
[
|
||
"root", "13642", "882", "0", "17:03", "pts/0", "00:00:00", "/bin/bash"
|
||
],
|
||
[
|
||
"root", "13735", "13642", "0", "17:06", "pts/0", "00:00:00", "sleep 10"
|
||
]
|
||
]
|
||
}
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/top?ps_args=aux HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Titles" : [
|
||
"USER","PID","%CPU","%MEM","VSZ","RSS","TTY","STAT","START","TIME","COMMAND"
|
||
]
|
||
"Processes" : [
|
||
[
|
||
"root","13642","0.0","0.1","18172","3184","pts/0","Ss","17:03","0:00","/bin/bash"
|
||
],
|
||
[
|
||
"root","13895","0.0","0.0","4348","692","pts/0","S+","17:15","0:00","sleep 10"
|
||
]
|
||
],
|
||
}
|
||
|
||
**Query parameters**:
|
||
|
||
- **ps_args** – `ps` arguments to use (e.g., `aux`), defaults to `-ef`
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Get container logs
|
||
|
||
`GET /containers/(id or name)/logs`
|
||
|
||
Get `stdout` and `stderr` logs from the container ``id``
|
||
|
||
> **Note**:
|
||
> This endpoint works only for containers with the `json-file` or `journald` logging drivers.
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/logs?stderr=1&stdout=1×tamps=1&follow=1&tail=10 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 101 UPGRADED
|
||
Content-Type: application/vnd.docker.raw-stream
|
||
Connection: Upgrade
|
||
Upgrade: tcp
|
||
|
||
{% raw %}
|
||
{{ STREAM }}
|
||
{% endraw %}
|
||
|
||
**Query parameters**:
|
||
|
||
- **follow** – 1/True/true or 0/False/false, return stream. Default `false`.
|
||
- **stdout** – 1/True/true or 0/False/false, show `stdout` log. Default `false`.
|
||
- **stderr** – 1/True/true or 0/False/false, show `stderr` log. Default `false`.
|
||
- **timestamps** – 1/True/true or 0/False/false, print timestamps for
|
||
every log line. Default `false`.
|
||
- **tail** – Output specified number of lines at the end of logs: `all` or `<number>`. Default all.
|
||
|
||
**Status codes**:
|
||
|
||
- **101** – no error, hints proxy about hijacking
|
||
- **200** – no error, no upgrade header found
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Inspect changes on a container's filesystem
|
||
|
||
`GET /containers/(id or name)/changes`
|
||
|
||
Inspect changes on container `id`'s filesystem
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/changes HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"Path": "/dev",
|
||
"Kind": 0
|
||
},
|
||
{
|
||
"Path": "/dev/kmsg",
|
||
"Kind": 1
|
||
},
|
||
{
|
||
"Path": "/test",
|
||
"Kind": 1
|
||
}
|
||
]
|
||
|
||
Values for `Kind`:
|
||
|
||
- `0`: Modify
|
||
- `1`: Add
|
||
- `2`: Delete
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Export a container
|
||
|
||
`GET /containers/(id or name)/export`
|
||
|
||
Export the contents of container `id`
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/4fa6e0f0c678/export HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/octet-stream
|
||
|
||
{% raw %}
|
||
{{ TAR STREAM }}
|
||
{% endraw %}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Get container stats based on resource usage
|
||
|
||
`GET /containers/(id or name)/stats`
|
||
|
||
This endpoint returns a live stream of a container's resource usage statistics.
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/containers/redis1/stats HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"read" : "2015-01-08T22:57:31.547920715Z",
|
||
"network" : {
|
||
"rx_dropped" : 0,
|
||
"rx_bytes" : 648,
|
||
"rx_errors" : 0,
|
||
"tx_packets" : 8,
|
||
"tx_dropped" : 0,
|
||
"rx_packets" : 8,
|
||
"tx_errors" : 0,
|
||
"tx_bytes" : 648
|
||
},
|
||
"memory_stats" : {
|
||
"stats" : {
|
||
"total_pgmajfault" : 0,
|
||
"cache" : 0,
|
||
"mapped_file" : 0,
|
||
"total_inactive_file" : 0,
|
||
"pgpgout" : 414,
|
||
"rss" : 6537216,
|
||
"total_mapped_file" : 0,
|
||
"writeback" : 0,
|
||
"unevictable" : 0,
|
||
"pgpgin" : 477,
|
||
"total_unevictable" : 0,
|
||
"pgmajfault" : 0,
|
||
"total_rss" : 6537216,
|
||
"total_rss_huge" : 6291456,
|
||
"total_writeback" : 0,
|
||
"total_inactive_anon" : 0,
|
||
"rss_huge" : 6291456,
|
||
"hierarchical_memory_limit" : 67108864,
|
||
"total_pgfault" : 964,
|
||
"total_active_file" : 0,
|
||
"active_anon" : 6537216,
|
||
"total_active_anon" : 6537216,
|
||
"total_pgpgout" : 414,
|
||
"total_cache" : 0,
|
||
"inactive_anon" : 0,
|
||
"active_file" : 0,
|
||
"pgfault" : 964,
|
||
"inactive_file" : 0,
|
||
"total_pgpgin" : 477
|
||
},
|
||
"max_usage" : 6651904,
|
||
"usage" : 6537216,
|
||
"failcnt" : 0,
|
||
"limit" : 67108864
|
||
},
|
||
"blkio_stats" : {},
|
||
"cpu_stats" : {
|
||
"cpu_usage" : {
|
||
"percpu_usage" : [
|
||
16970827,
|
||
1839451,
|
||
7107380,
|
||
10571290
|
||
],
|
||
"usage_in_usermode" : 10000000,
|
||
"total_usage" : 36488948,
|
||
"usage_in_kernelmode" : 20000000
|
||
},
|
||
"system_cpu_usage" : 20091722000000000,
|
||
"throttling_data" : {}
|
||
}
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Resize a container TTY
|
||
|
||
`POST /containers/(id or name)/resize?h=<height>&w=<width>`
|
||
|
||
Resize the TTY for container with `id`. You must restart the container for the resize to take effect.
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/4fa6e0f0c678/resize?h=40&w=80 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Length: 0
|
||
Content-Type: text/plain; charset=utf-8
|
||
|
||
**Query parameters**:
|
||
|
||
- **h** – height of `tty` session
|
||
- **w** – width
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – No such container
|
||
- **500** – Cannot resize container
|
||
|
||
#### Start a container
|
||
|
||
`POST /containers/(id or name)/start`
|
||
|
||
Start the container `id`
|
||
|
||
> **Note**:
|
||
> For backwards compatibility, this endpoint accepts a `HostConfig` as JSON-encoded request body.
|
||
> See [create a container](#create-a-container) for details.
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/start HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **304** – container already started
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Stop a container
|
||
|
||
`POST /containers/(id or name)/stop`
|
||
|
||
Stop the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/stop?t=5 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Query parameters**:
|
||
|
||
- **t** – number of seconds to wait before killing the container
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **304** – container already stopped
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Restart a container
|
||
|
||
`POST /containers/(id or name)/restart`
|
||
|
||
Restart the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/restart?t=5 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Query parameters**:
|
||
|
||
- **t** – number of seconds to wait before killing the container
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Kill a container
|
||
|
||
`POST /containers/(id or name)/kill`
|
||
|
||
Kill the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/kill HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Query parameters**:
|
||
|
||
- **signal** - Signal to send to the container: integer or string like `SIGINT`.
|
||
When not set, `SIGKILL` is assumed and the call waits for the container to exit.
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Rename a container
|
||
|
||
`POST /containers/(id or name)/rename`
|
||
|
||
Rename the container `id` to a `new_name`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/rename?name=new_name HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Query parameters**:
|
||
|
||
- **name** – new name for the container
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **404** – no such container
|
||
- **409** - conflict name already assigned
|
||
- **500** – server error
|
||
|
||
#### Pause a container
|
||
|
||
`POST /containers/(id or name)/pause`
|
||
|
||
Pause the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/pause HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Unpause a container
|
||
|
||
`POST /containers/(id or name)/unpause`
|
||
|
||
Unpause the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/unpause HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Attach to a container
|
||
|
||
`POST /containers/(id or name)/attach`
|
||
|
||
Attach to the container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/16253994b7c4/attach?logs=1&stream=0&stdout=1 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 101 UPGRADED
|
||
Content-Type: application/vnd.docker.raw-stream
|
||
Connection: Upgrade
|
||
Upgrade: tcp
|
||
|
||
{% raw %}
|
||
{{ STREAM }}
|
||
{% endraw %}
|
||
|
||
**Query parameters**:
|
||
|
||
- **logs** – 1/True/true or 0/False/false, return logs. Default `false`.
|
||
- **stream** – 1/True/true or 0/False/false, return stream.
|
||
Default `false`.
|
||
- **stdin** – 1/True/true or 0/False/false, if `stream=true`, attach
|
||
to `stdin`. Default `false`.
|
||
- **stdout** – 1/True/true or 0/False/false, if `logs=true`, return
|
||
`stdout` log, if `stream=true`, attach to `stdout`. Default `false`.
|
||
- **stderr** – 1/True/true or 0/False/false, if `logs=true`, return
|
||
`stderr` log, if `stream=true`, attach to `stderr`. Default `false`.
|
||
|
||
**Status codes**:
|
||
|
||
- **101** – no error, hints proxy about hijacking
|
||
- **200** – no error, no upgrade header found
|
||
- **400** – bad parameter
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
**Stream details**:
|
||
|
||
When using the TTY setting is enabled in
|
||
[`POST /containers/create`
|
||
](#create-a-container),
|
||
the stream is the raw data from the process PTY and client's `stdin`.
|
||
When the TTY is disabled, then the stream is multiplexed to separate
|
||
`stdout` and `stderr`.
|
||
|
||
The format is a **Header** and a **Payload** (frame).
|
||
|
||
**HEADER**
|
||
|
||
The header contains the information which the stream writes (`stdout` or
|
||
`stderr`). It also contains the size of the associated frame encoded in the
|
||
last four bytes (`uint32`).
|
||
|
||
It is encoded on the first eight bytes like this:
|
||
|
||
header := [8]byte{STREAM_TYPE, 0, 0, 0, SIZE1, SIZE2, SIZE3, SIZE4}
|
||
|
||
`STREAM_TYPE` can be:
|
||
|
||
- 0: `stdin` (is written on `stdout`)
|
||
- 1: `stdout`
|
||
- 2: `stderr`
|
||
|
||
`SIZE1, SIZE2, SIZE3, SIZE4` are the four bytes of
|
||
the `uint32` size encoded as big endian.
|
||
|
||
**PAYLOAD**
|
||
|
||
The payload is the raw stream.
|
||
|
||
**IMPLEMENTATION**
|
||
|
||
The simplest way to implement the Attach protocol is the following:
|
||
|
||
1. Read eight bytes.
|
||
2. Choose `stdout` or `stderr` depending on the first byte.
|
||
3. Extract the frame size from the last four bytes.
|
||
4. Read the extracted size and output it on the correct output.
|
||
5. Goto 1.
|
||
|
||
#### Attach to a container (websocket)
|
||
|
||
`GET /containers/(id or name)/attach/ws`
|
||
|
||
Attach to the container `id` via websocket
|
||
|
||
Implements websocket protocol handshake according to [RFC 6455](http://tools.ietf.org/html/rfc6455)
|
||
|
||
**Example request**
|
||
|
||
GET /v1.18/containers/e90e34656806/attach/ws?logs=0&stream=1&stdin=1&stdout=1&stderr=1 HTTP/1.1
|
||
|
||
**Example response**
|
||
|
||
{% raw %}
|
||
{{ STREAM }}
|
||
{% endraw %}
|
||
|
||
**Query parameters**:
|
||
|
||
- **logs** – 1/True/true or 0/False/false, return logs. Default `false`.
|
||
- **stream** – 1/True/true or 0/False/false, return stream.
|
||
Default `false`.
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **400** – bad parameter
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Wait a container
|
||
|
||
`POST /containers/(id or name)/wait`
|
||
|
||
Block until container `id` stops, then returns the exit code
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/16253994b7c4/wait HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{"StatusCode": 0}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Remove a container
|
||
|
||
`DELETE /containers/(id or name)`
|
||
|
||
Remove the container `id` from the filesystem
|
||
|
||
**Example request**:
|
||
|
||
DELETE /v1.18/containers/16253994b7c4?v=1 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 204 No Content
|
||
|
||
**Query parameters**:
|
||
|
||
- **v** – 1/True/true or 0/False/false, Remove the volumes
|
||
associated to the container. Default `false`.
|
||
- **force** - 1/True/true or 0/False/false, Kill then remove the container.
|
||
Default `false`.
|
||
- **link** - 1/True/true or 0/False/false, Remove the specified
|
||
link associated to the container. Default `false`.
|
||
|
||
**Status codes**:
|
||
|
||
- **204** – no error
|
||
- **400** – bad parameter
|
||
- **404** – no such container
|
||
- **409** – conflict
|
||
- **500** – server error
|
||
|
||
#### Copy files or folders from a container
|
||
|
||
`POST /containers/(id or name)/copy`
|
||
|
||
Copy files or folders of container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/4fa6e0f0c678/copy HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"Resource": "test.txt"
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/x-tar
|
||
|
||
{% raw %}
|
||
{{ TAR STREAM }}
|
||
{% endraw %}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
### 2.2 Images
|
||
|
||
#### List Images
|
||
|
||
`GET /images/json`
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/images/json?all=0 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"RepoTags": [
|
||
"ubuntu:12.04",
|
||
"ubuntu:precise",
|
||
"ubuntu:latest"
|
||
],
|
||
"Id": "8dbd9e392a964056420e5d58ca5cc376ef18e2de93b5cc90e868a1bbc8318c1c",
|
||
"Created": 1365714795,
|
||
"Size": 131506275,
|
||
"VirtualSize": 131506275
|
||
},
|
||
{
|
||
"RepoTags": [
|
||
"ubuntu:12.10",
|
||
"ubuntu:quantal"
|
||
],
|
||
"ParentId": "27cf784147099545",
|
||
"Id": "b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc",
|
||
"Created": 1364102658,
|
||
"Size": 24653,
|
||
"VirtualSize": 180116135
|
||
}
|
||
]
|
||
|
||
**Example request, with digest information**:
|
||
|
||
GET /v1.18/images/json?digests=1 HTTP/1.1
|
||
|
||
**Example response, with digest information**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"Created": 1420064636,
|
||
"Id": "4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125",
|
||
"ParentId": "ea13149945cb6b1e746bf28032f02e9b5a793523481a0a18645fc77ad53c4ea2",
|
||
"RepoDigests": [
|
||
"localhost:5000/test/busybox@sha256:cbbf2f9a99b47fc460d422812b6a5adff7dfee951d8fa2e4a98caa0382cfbdbf"
|
||
],
|
||
"RepoTags": [
|
||
"localhost:5000/test/busybox:latest",
|
||
"playdate:latest"
|
||
],
|
||
"Size": 0,
|
||
"VirtualSize": 2429728
|
||
}
|
||
]
|
||
|
||
The response shows a single image `Id` associated with two repositories
|
||
(`RepoTags`): `localhost:5000/test/busybox`: and `playdate`. A caller can use
|
||
either of the `RepoTags` values `localhost:5000/test/busybox:latest` or
|
||
`playdate:latest` to reference the image.
|
||
|
||
You can also use `RepoDigests` values to reference an image. In this response,
|
||
the array has only one reference and that is to the
|
||
`localhost:5000/test/busybox` repository; the `playdate` repository has no
|
||
digest. You can reference this digest using the value:
|
||
`localhost:5000/test/busybox@sha256:cbbf2f9a99b47fc460d...`
|
||
|
||
See the `docker run` and `docker build` commands for examples of digest and tag
|
||
references on the command line.
|
||
|
||
**Query parameters**:
|
||
|
||
- **all** – 1/True/true or 0/False/false, default false
|
||
- **filters** – a JSON encoded value of the filters (a map[string][]string) to process on the images list. Available filters:
|
||
- `dangling=true`
|
||
- `label=key` or `label="key=value"` of an image label
|
||
- **filter** - only return images with the specified name
|
||
|
||
#### Build image from a Dockerfile
|
||
|
||
`POST /build`
|
||
|
||
Build an image from a Dockerfile
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/build HTTP/1.1
|
||
Content-Type: application/x-tar
|
||
|
||
{% raw %}
|
||
{{ TAR STREAM }}
|
||
{% endraw %}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{"stream": "Step 1/5..."}
|
||
{"stream": "..."}
|
||
{"error": "Error...", "errorDetail": {"code": 123, "message": "Error..."}}
|
||
|
||
The input stream must be a `tar` archive compressed with one of the
|
||
following algorithms: `identity` (no compression), `gzip`, `bzip2`, `xz`.
|
||
|
||
The archive must include a build instructions file, typically called
|
||
`Dockerfile` at the archive's root. The `dockerfile` parameter may be
|
||
used to specify a different build instructions file. To do this, its value must be
|
||
the path to the alternate build instructions file to use.
|
||
|
||
The archive may include any number of other files,
|
||
which are accessible in the build context (See the [*ADD build
|
||
command*](https://docs.docker.com/engine/reference/builder/#add)).
|
||
|
||
The Docker daemon performs a preliminary validation of the `Dockerfile` before
|
||
starting the build, and returns an error if the syntax is incorrect. After that,
|
||
each instruction is run one-by-one until the ID of the new image is output.
|
||
|
||
The build is canceled if the client drops the connection by quitting
|
||
or being killed.
|
||
|
||
**Query parameters**:
|
||
|
||
- **dockerfile** - Path within the build context to the Dockerfile. This is
|
||
ignored if `remote` is specified and points to an individual filename.
|
||
- **t** – A name and optional tag to apply to the image in the `name:tag` format.
|
||
If you omit the `tag` the default `latest` value is assumed.
|
||
- **remote** – A Git repository URI or HTTP/HTTPS context URI. If the
|
||
URI points to a single text file, the file's contents are placed into
|
||
a file called `Dockerfile` and the image is built from that file.
|
||
- **q** – Suppress verbose build output.
|
||
- **nocache** – Do not use the cache when building the image.
|
||
- **pull** - Attempt to pull the image even if an older image exists locally.
|
||
- **rm** - Remove intermediate containers after a successful build (default behavior).
|
||
- **forcerm** - Always remove intermediate containers (includes `rm`).
|
||
- **memory** - Set memory limit for build.
|
||
- **memswap** - Total memory (memory + swap), `-1` to enable unlimited swap.
|
||
- **cpushares** - CPU shares (relative weight).
|
||
- **cpusetcpus** - CPUs in which to allow execution (e.g., `0-3`, `0,1`).
|
||
|
||
**Request Headers**:
|
||
|
||
- **Content-type** – Set to `"application/x-tar"`.
|
||
- **X-Registry-Config** – base64-encoded ConfigFile object
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Create an image
|
||
|
||
`POST /images/create`
|
||
|
||
Create an image either by pulling it from the registry or by importing it
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/images/create?fromImage=busybox&tag=latest HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{"status": "Pulling..."}
|
||
{"status": "Pulling", "progress": "1 B/ 100 B", "progressDetail": {"current": 1, "total": 100}}
|
||
{"error": "Invalid..."}
|
||
...
|
||
|
||
When using this endpoint to pull an image from the registry, the
|
||
`X-Registry-Auth` header can be used to include
|
||
a base64-encoded AuthConfig object.
|
||
|
||
**Query parameters**:
|
||
|
||
- **fromImage** – Name of the image to pull.
|
||
- **fromSrc** – Source to import. The value may be a URL from which the image
|
||
can be retrieved or `-` to read the image from the request body.
|
||
- **repo** – Repository name.
|
||
- **tag** – Tag. If empty when pulling an image, this causes all tags
|
||
for the given image to be pulled.
|
||
|
||
**Request Headers**:
|
||
|
||
- **X-Registry-Auth** – base64-encoded AuthConfig object
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** - repository does not exist or no read access
|
||
- **500** – server error
|
||
|
||
|
||
|
||
#### Inspect an image
|
||
|
||
`GET /images/(name)/json`
|
||
|
||
Return low-level information on the image `name`
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/images/ubuntu/json HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Created": "2013-03-23T22:24:18.818426-07:00",
|
||
"Container": "3d67245a8d72ecf13f33dffac9f79dcdf70f75acb84d308770391510e0c23ad0",
|
||
"ContainerConfig": {
|
||
"Hostname": "",
|
||
"User": "",
|
||
"AttachStdin": false,
|
||
"AttachStdout": false,
|
||
"AttachStderr": false,
|
||
"Tty": true,
|
||
"OpenStdin": true,
|
||
"StdinOnce": false,
|
||
"Env": null,
|
||
"Cmd": ["/bin/bash"],
|
||
"Dns": null,
|
||
"Image": "ubuntu",
|
||
"Labels": {
|
||
"com.example.vendor": "Acme",
|
||
"com.example.license": "GPL",
|
||
"com.example.version": "1.0"
|
||
},
|
||
"Volumes": null,
|
||
"VolumesFrom": "",
|
||
"WorkingDir": ""
|
||
},
|
||
"Id": "b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc",
|
||
"Parent": "27cf784147099545",
|
||
"Size": 6824592
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such image
|
||
- **500** – server error
|
||
|
||
#### Get the history of an image
|
||
|
||
`GET /images/(name)/history`
|
||
|
||
Return the history of the image `name`
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/images/ubuntu/history HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"Id": "b750fe79269d",
|
||
"Created": 1364102658,
|
||
"CreatedBy": "/bin/bash"
|
||
},
|
||
{
|
||
"Id": "27cf78414709",
|
||
"Created": 1364068391,
|
||
"CreatedBy": ""
|
||
}
|
||
]
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such image
|
||
- **500** – server error
|
||
|
||
#### Push an image on the registry
|
||
|
||
`POST /images/(name)/push`
|
||
|
||
Push the image `name` on the registry
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/images/test/push HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{"status": "Pushing..."}
|
||
{"status": "Pushing", "progress": "1/? (n/a)", "progressDetail": {"current": 1}}}
|
||
{"error": "Invalid..."}
|
||
...
|
||
|
||
If you wish to push an image on to a private registry, that image must already have a tag
|
||
into a repository which references that registry `hostname` and `port`. This repository name should
|
||
then be used in the URL. This duplicates the command line's flow.
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/images/registry.acme.com:5000/test/push HTTP/1.1
|
||
|
||
|
||
**Query parameters**:
|
||
|
||
- **tag** – The tag to associate with the image on the registry. This is optional.
|
||
|
||
**Request Headers**:
|
||
|
||
- **X-Registry-Auth** – base64-encoded AuthConfig object.
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such image
|
||
- **500** – server error
|
||
|
||
#### Tag an image into a repository
|
||
|
||
`POST /images/(name)/tag`
|
||
|
||
Tag the image `name` into a repository
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/images/test/tag?repo=myrepo&force=0&tag=v42 HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 201 Created
|
||
|
||
**Query parameters**:
|
||
|
||
- **repo** – The repository to tag in
|
||
- **force** – 1/True/true or 0/False/false, default false
|
||
- **tag** - The new tag name
|
||
|
||
**Status codes**:
|
||
|
||
- **201** – no error
|
||
- **400** – bad parameter
|
||
- **404** – no such image
|
||
- **409** – conflict
|
||
- **500** – server error
|
||
|
||
#### Remove an image
|
||
|
||
`DELETE /images/(name)`
|
||
|
||
Remove the image `name` from the filesystem
|
||
|
||
**Example request**:
|
||
|
||
DELETE /v1.18/images/test HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-type: application/json
|
||
|
||
[
|
||
{"Untagged": "3e2f21a89f"},
|
||
{"Deleted": "3e2f21a89f"},
|
||
{"Deleted": "53b4f83ac9"}
|
||
]
|
||
|
||
**Query parameters**:
|
||
|
||
- **force** – 1/True/true or 0/False/false, default false
|
||
- **noprune** – 1/True/true or 0/False/false, default false
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such image
|
||
- **409** – conflict
|
||
- **500** – server error
|
||
|
||
#### Search images
|
||
|
||
`GET /images/search`
|
||
|
||
Search for an image on [Docker Hub](https://hub.docker.com).
|
||
|
||
> **Note**:
|
||
> The response keys have changed from API v1.6 to reflect the JSON
|
||
> sent by the registry server to the docker daemon's request.
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/images/search?term=sshd HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
[
|
||
{
|
||
"star_count": 12,
|
||
"is_official": false,
|
||
"name": "wma55/u1210sshd",
|
||
"is_automated": false,
|
||
"description": ""
|
||
},
|
||
{
|
||
"star_count": 10,
|
||
"is_official": false,
|
||
"name": "jdswinbank/sshd",
|
||
"is_automated": false,
|
||
"description": ""
|
||
},
|
||
{
|
||
"star_count": 18,
|
||
"is_official": false,
|
||
"name": "vgauthier/sshd",
|
||
"is_automated": false,
|
||
"description": ""
|
||
}
|
||
...
|
||
]
|
||
|
||
**Query parameters**:
|
||
|
||
- **term** – term to search
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
### 2.3 Misc
|
||
|
||
#### Check auth configuration
|
||
|
||
`POST /auth`
|
||
|
||
Get the default username and email
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/auth HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"username": "hannibal",
|
||
"password": "xxxx",
|
||
"email": "hannibal@a-team.com",
|
||
"serveraddress": "https://index.docker.io/v1/"
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **204** – no error
|
||
- **500** – server error
|
||
|
||
#### Display system-wide information
|
||
|
||
`GET /info`
|
||
|
||
Display system-wide information
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/info HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Containers": 11,
|
||
"Debug": 0,
|
||
"DockerRootDir": "/var/lib/docker",
|
||
"Driver": "btrfs",
|
||
"DriverStatus": [[""]],
|
||
"ExecutionDriver": "native-0.1",
|
||
"HttpProxy": "http://test:test@localhost:8080",
|
||
"HttpsProxy": "https://test:test@localhost:8080",
|
||
"ID": "7TRN:IPZB:QYBB:VPBQ:UMPP:KARE:6ZNR:XE6T:7EWV:PKF4:ZOJD:TPYS",
|
||
"IPv4Forwarding": 1,
|
||
"Images": 16,
|
||
"IndexServerAddress": "https://index.docker.io/v1/",
|
||
"InitPath": "/usr/bin/docker",
|
||
"InitSha1": "",
|
||
"KernelVersion": "3.12.0-1-amd64",
|
||
"Labels": [
|
||
"storage=ssd"
|
||
],
|
||
"MemTotal": 2099236864,
|
||
"MemoryLimit": 1,
|
||
"NCPU": 1,
|
||
"NEventsListener": 0,
|
||
"NFd": 11,
|
||
"NGoroutines": 21,
|
||
"Name": "prod-server-42",
|
||
"NoProxy": "9.81.1.160",
|
||
"OperatingSystem": "Boot2Docker",
|
||
"RegistryConfig": {
|
||
"IndexConfigs": {
|
||
"docker.io": {
|
||
"Mirrors": null,
|
||
"Name": "docker.io",
|
||
"Official": true,
|
||
"Secure": true
|
||
}
|
||
},
|
||
"InsecureRegistryCIDRs": [
|
||
"127.0.0.0/8"
|
||
]
|
||
},
|
||
"SwapLimit": 0,
|
||
"SystemTime": "2015-03-10T11:11:23.730591467-07:00"
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Show the docker version information
|
||
|
||
`GET /version`
|
||
|
||
Show the docker version information
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/version HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Version": "1.5.0",
|
||
"Os": "linux",
|
||
"KernelVersion": "3.18.5-tinycore64",
|
||
"GoVersion": "go1.4.1",
|
||
"GitCommit": "a8a31ef",
|
||
"Arch": "amd64",
|
||
"ApiVersion": "1.18"
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Ping the docker server
|
||
|
||
`GET /_ping`
|
||
|
||
Ping the docker server
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/_ping HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: text/plain
|
||
|
||
OK
|
||
|
||
**Status codes**:
|
||
|
||
- **200** - no error
|
||
- **500** - server error
|
||
|
||
#### Create a new image from a container's changes
|
||
|
||
`POST /commit`
|
||
|
||
Create a new image from a container's changes
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/commit?container=44c004db4b17&comment=message&repo=myrepo HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"Hostname": "",
|
||
"Domainname": "",
|
||
"User": "",
|
||
"AttachStdin": false,
|
||
"AttachStdout": true,
|
||
"AttachStderr": true,
|
||
"PortSpecs": null,
|
||
"Tty": false,
|
||
"OpenStdin": false,
|
||
"StdinOnce": false,
|
||
"Env": null,
|
||
"Cmd": [
|
||
"date"
|
||
],
|
||
"Volumes": {
|
||
"/tmp": {}
|
||
},
|
||
"WorkingDir": "",
|
||
"NetworkDisabled": false,
|
||
"ExposedPorts": {
|
||
"22/tcp": {}
|
||
}
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 201 Created
|
||
Content-Type: application/json
|
||
|
||
{"Id": "596069db4bf5"}
|
||
|
||
**JSON parameters**:
|
||
|
||
- **config** - the container's configuration
|
||
|
||
**Query parameters**:
|
||
|
||
- **container** – source container
|
||
- **repo** – repository
|
||
- **tag** – tag
|
||
- **comment** – commit message
|
||
- **author** – author (e.g., "John Hannibal Smith
|
||
<[hannibal@a-team.com](mailto:hannibal%40a-team.com)>")
|
||
|
||
**Status codes**:
|
||
|
||
- **201** – no error
|
||
- **404** – no such container
|
||
- **500** – server error
|
||
|
||
#### Monitor Docker's events
|
||
|
||
`GET /events`
|
||
|
||
Get container events from docker, in real time via streaming.
|
||
|
||
Docker containers report the following events:
|
||
|
||
create, destroy, die, exec_create, exec_start, export, kill, oom, pause, restart, start, stop, unpause
|
||
|
||
Docker images report the following events:
|
||
|
||
untag, delete
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/events?since=1374067924
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/json
|
||
|
||
{"status": "create", "id": "dfdf82bd3881","from": "ubuntu:latest", "time":1374067924}
|
||
{"status": "start", "id": "dfdf82bd3881","from": "ubuntu:latest", "time":1374067924}
|
||
{"status": "stop", "id": "dfdf82bd3881","from": "ubuntu:latest", "time":1374067966}
|
||
{"status": "destroy", "id": "dfdf82bd3881","from": "ubuntu:latest", "time":1374067970}
|
||
|
||
**Query parameters**:
|
||
|
||
- **since** – Timestamp. Show all events created since timestamp and then stream
|
||
- **until** – Timestamp. Show events created until given timestamp and stop streaming
|
||
- **filters** – A json encoded value of the filters (a map[string][]string) to process on the event list. Available filters:
|
||
- `container=<string>`; -- container to filter
|
||
- `event=<string>`; -- event to filter
|
||
- `image=<string>`; -- image to filter
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Get a tarball containing all images in a repository
|
||
|
||
`GET /images/(name)/get`
|
||
|
||
Get a tarball containing all images and metadata for the repository specified
|
||
by `name`.
|
||
|
||
If `name` is a specific name and tag (e.g. ubuntu:latest), then only that image
|
||
(and its parents) are returned. If `name` is an image ID, similarly only that
|
||
image (and its parents) are returned, but with the exclusion of the
|
||
'repositories' file in the tarball, as there were no image names referenced.
|
||
|
||
See the [image tarball format](#image-tarball-format) for more details.
|
||
|
||
**Example request**
|
||
|
||
GET /v1.18/images/ubuntu/get
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/x-tar
|
||
|
||
Binary data stream
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Get a tarball containing all images
|
||
|
||
`GET /images/get`
|
||
|
||
Get a tarball containing all images and metadata for one or more repositories.
|
||
|
||
For each value of the `names` parameter: if it is a specific name and tag (e.g.
|
||
`ubuntu:latest`), then only that image (and its parents) are returned; if it is
|
||
an image ID, similarly only that image (and its parents) are returned and there
|
||
would be no names referenced in the 'repositories' file for this image ID.
|
||
|
||
See the [image tarball format](#image-tarball-format) for more details.
|
||
|
||
**Example request**
|
||
|
||
GET /v1.18/images/get?names=myname%2Fmyapp%3Alatest&names=busybox
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/x-tar
|
||
|
||
Binary data stream
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Load a tarball with a set of images and tags into docker
|
||
|
||
`POST /images/load`
|
||
|
||
Load a set of images and tags into a Docker repository.
|
||
See the [image tarball format](#image-tarball-format) for more details.
|
||
|
||
**Example request**
|
||
|
||
POST /v1.18/images/load
|
||
Content-Type: application/x-tar
|
||
Content-Length: 12345
|
||
|
||
Tarball in body
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **500** – server error
|
||
|
||
#### Image tarball format
|
||
|
||
An image tarball contains one directory per image layer (named using its long ID),
|
||
each containing these files:
|
||
|
||
- `VERSION`: currently `1.0` - the file format version
|
||
- `json`: detailed layer information, similar to `docker inspect layer_id`
|
||
- `layer.tar`: A tarfile containing the filesystem changes in this layer
|
||
|
||
The `layer.tar` file contains `aufs` style `.wh..wh.aufs` files and directories
|
||
for storing attribute changes and deletions.
|
||
|
||
If the tarball defines a repository, the tarball should also include a `repositories` file at
|
||
the root that contains a list of repository and tag names mapped to layer IDs.
|
||
|
||
```
|
||
{"hello-world":
|
||
{"latest": "565a9d68a73f6706862bfe8409a7f659776d4d60a8d096eb4a3cbce6999cc2a1"}
|
||
}
|
||
```
|
||
|
||
#### Exec Create
|
||
|
||
`POST /containers/(id or name)/exec`
|
||
|
||
Sets up an exec instance in a running container `id`
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/containers/e90e34656806/exec HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"AttachStdin": true,
|
||
"AttachStdout": true,
|
||
"AttachStderr": true,
|
||
"Cmd": ["sh"],
|
||
"Tty": true
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 201 Created
|
||
Content-Type: application/json
|
||
|
||
{
|
||
"Id": "f90e34656806",
|
||
"Warnings":[]
|
||
}
|
||
|
||
**JSON parameters**:
|
||
|
||
- **AttachStdin** - Boolean value, attaches to `stdin` of the `exec` command.
|
||
- **AttachStdout** - Boolean value, attaches to `stdout` of the `exec` command.
|
||
- **AttachStderr** - Boolean value, attaches to `stderr` of the `exec` command.
|
||
- **Tty** - Boolean value to allocate a pseudo-TTY.
|
||
- **Cmd** - Command to run specified as a string or an array of strings.
|
||
|
||
|
||
**Status codes**:
|
||
|
||
- **201** – no error
|
||
- **404** – no such container
|
||
|
||
#### Exec Start
|
||
|
||
`POST /exec/(id)/start`
|
||
|
||
Starts a previously set up `exec` instance `id`. If `detach` is true, this API
|
||
returns after starting the `exec` command. Otherwise, this API sets up an
|
||
interactive session with the `exec` command.
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/exec/e90e34656806/start HTTP/1.1
|
||
Content-Type: application/json
|
||
Content-Length: 12345
|
||
|
||
{
|
||
"Detach": false,
|
||
"Tty": false
|
||
}
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: application/vnd.docker.raw-stream
|
||
|
||
{% raw %}
|
||
{{ STREAM }}
|
||
{% endraw %}
|
||
|
||
**JSON parameters**:
|
||
|
||
- **Detach** - Detach from the `exec` command.
|
||
- **Tty** - Boolean value to allocate a pseudo-TTY.
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such exec instance
|
||
|
||
**Stream details**:
|
||
|
||
Similar to the stream behavior of `POST /containers/(id or name)/attach` API
|
||
|
||
#### Exec Resize
|
||
|
||
`POST /exec/(id)/resize`
|
||
|
||
Resizes the `tty` session used by the `exec` command `id`. The unit is number of characters.
|
||
This API is valid only if `tty` was specified as part of creating and starting the `exec` command.
|
||
|
||
**Example request**:
|
||
|
||
POST /v1.18/exec/e90e34656806/resize?h=40&w=80 HTTP/1.1
|
||
Content-Type: text/plain
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 201 Created
|
||
Content-Type: text/plain
|
||
|
||
**Query parameters**:
|
||
|
||
- **h** – height of `tty` session
|
||
- **w** – width
|
||
|
||
**Status codes**:
|
||
|
||
- **201** – no error
|
||
- **404** – no such exec instance
|
||
|
||
#### Exec Inspect
|
||
|
||
`GET /exec/(id)/json`
|
||
|
||
Return low-level information about the `exec` command `id`.
|
||
|
||
**Example request**:
|
||
|
||
GET /v1.18/exec/11fb006128e8ceb3942e7c58d77750f24210e35f879dd204ac975c184b820b39/json HTTP/1.1
|
||
|
||
**Example response**:
|
||
|
||
HTTP/1.1 200 OK
|
||
Content-Type: plain/text
|
||
|
||
{
|
||
"ID" : "11fb006128e8ceb3942e7c58d77750f24210e35f879dd204ac975c184b820b39",
|
||
"Running" : false,
|
||
"ExitCode" : 2,
|
||
"ProcessConfig" : {
|
||
"privileged" : false,
|
||
"user" : "",
|
||
"tty" : false,
|
||
"entrypoint" : "sh",
|
||
"arguments" : [
|
||
"-c",
|
||
"exit 2"
|
||
]
|
||
},
|
||
"OpenStdin" : false,
|
||
"OpenStderr" : false,
|
||
"OpenStdout" : false,
|
||
"Container" : {
|
||
"State" : {
|
||
"Running" : true,
|
||
"Paused" : false,
|
||
"Restarting" : false,
|
||
"OOMKilled" : false,
|
||
"Pid" : 3650,
|
||
"ExitCode" : 0,
|
||
"Error" : "",
|
||
"StartedAt" : "2014-11-17T22:26:03.717657531Z",
|
||
"FinishedAt" : "0001-01-01T00:00:00Z"
|
||
},
|
||
"ID" : "8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c",
|
||
"Created" : "2014-11-17T22:26:03.626304998Z",
|
||
"Path" : "date",
|
||
"Args" : [],
|
||
"Config" : {
|
||
"Hostname" : "8f177a186b97",
|
||
"Domainname" : "",
|
||
"User" : "",
|
||
"AttachStdin" : false,
|
||
"AttachStdout" : false,
|
||
"AttachStderr" : false,
|
||
"PortSpecs": null,
|
||
"ExposedPorts" : null,
|
||
"Tty" : false,
|
||
"OpenStdin" : false,
|
||
"StdinOnce" : false,
|
||
"Env" : [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" ],
|
||
"Cmd" : [
|
||
"date"
|
||
],
|
||
"Image" : "ubuntu",
|
||
"Volumes" : null,
|
||
"WorkingDir" : "",
|
||
"Entrypoint" : null,
|
||
"NetworkDisabled" : false,
|
||
"MacAddress" : "",
|
||
"OnBuild" : null,
|
||
"SecurityOpt" : null
|
||
},
|
||
"Image" : "5506de2b643be1e6febbf3b8a240760c6843244c41e12aa2f60ccbb7153d17f5",
|
||
"NetworkSettings" : {
|
||
"IPAddress" : "172.17.0.2",
|
||
"IPPrefixLen" : 16,
|
||
"MacAddress" : "02:42:ac:11:00:02",
|
||
"Gateway" : "172.17.42.1",
|
||
"Bridge" : "docker0",
|
||
"PortMapping" : null,
|
||
"Ports" : {}
|
||
},
|
||
"ResolvConfPath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/resolv.conf",
|
||
"HostnamePath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/hostname",
|
||
"HostsPath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/hosts",
|
||
"LogPath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b-json.log",
|
||
"Name" : "/test",
|
||
"Driver" : "aufs",
|
||
"ExecDriver" : "native-0.2",
|
||
"MountLabel" : "",
|
||
"ProcessLabel" : "",
|
||
"AppArmorProfile" : "",
|
||
"RestartCount" : 0,
|
||
"Volumes" : {},
|
||
"VolumesRW" : {}
|
||
}
|
||
}
|
||
|
||
**Status codes**:
|
||
|
||
- **200** – no error
|
||
- **404** – no such exec instance
|
||
- **500** - server error
|
||
|
||
## 3. Going further
|
||
|
||
### 3.1 Inside `docker run`
|
||
|
||
As an example, the `docker run` command line makes the following API calls:
|
||
|
||
- Create the container
|
||
|
||
- If the status code is 404, it means the image doesn't exist:
|
||
- 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 version of the API, `/attach`, uses hijacking to transport `stdin`,
|
||
`stdout`, and `stderr` on the same socket.
|
||
|
||
To hint potential proxies about connection hijacking, Docker client sends
|
||
connection upgrade headers similarly to websocket.
|
||
|
||
Upgrade: tcp
|
||
Connection: Upgrade
|
||
|
||
When Docker daemon detects the `Upgrade` header, it switches its status code
|
||
from **200 OK** to **101 UPGRADED** and resends the same headers.
|
||
|
||
This might change in the future.
|
||
|
||
### 3.3 CORS Requests
|
||
|
||
To set cross origin requests to the Engine API please give values to
|
||
`--api-cors-header` when running Docker in daemon mode. Set * (asterisk) allows all,
|
||
default or blank means CORS disabled
|
||
|
||
$ docker -d -H="192.168.1.9:2375" --api-cors-header="http://foo.bar"
|