github.com/kobeld/docker@v1.12.0-rc1/docs/reference/api/docker_remote_api_v1.21.md (about) 1 <!--[metadata]> 2 +++ 3 title = "Remote API v1.21" 4 description = "API Documentation for Docker" 5 keywords = ["API, Docker, rcli, REST, documentation"] 6 [menu.main] 7 parent="engine_remoteapi" 8 weight=-2 9 +++ 10 <![end-metadata]--> 11 12 # Docker Remote API v1.21 13 14 ## 1. Brief introduction 15 16 - The Remote API has replaced `rcli`. 17 - The daemon listens on `unix:///var/run/docker.sock` but you can 18 [Bind Docker to another host/port or a Unix socket](../commandline/dockerd.md#bind-docker-to-another-host-port-or-a-unix-socket). 19 - The API tends to be REST. However, for some complex commands, like `attach` 20 or `pull`, the HTTP connection is hijacked to transport `stdout`, 21 `stdin` and `stderr`. 22 - When the client API version is newer than the daemon's, these calls return an HTTP 23 `400 Bad Request` error message. 24 25 # 2. Endpoints 26 27 ## 2.1 Containers 28 29 ### List containers 30 31 `GET /containers/json` 32 33 List containers 34 35 **Example request**: 36 37 GET /containers/json?all=1&before=8dfafdbc3a40&size=1 HTTP/1.1 38 39 **Example response**: 40 41 HTTP/1.1 200 OK 42 Content-Type: application/json 43 44 [ 45 { 46 "Id": "8dfafdbc3a40", 47 "Names":["/boring_feynman"], 48 "Image": "ubuntu:latest", 49 "ImageID": "d74508fb6632491cea586a1fd7d748dfc5274cd6fdfedee309ecdcbc2bf5cb82", 50 "Command": "echo 1", 51 "Created": 1367854155, 52 "Status": "Exit 0", 53 "Ports": [{"PrivatePort": 2222, "PublicPort": 3333, "Type": "tcp"}], 54 "Labels": { 55 "com.example.vendor": "Acme", 56 "com.example.license": "GPL", 57 "com.example.version": "1.0" 58 }, 59 "SizeRw": 12288, 60 "SizeRootFs": 0 61 }, 62 { 63 "Id": "9cd87474be90", 64 "Names":["/coolName"], 65 "Image": "ubuntu:latest", 66 "ImageID": "d74508fb6632491cea586a1fd7d748dfc5274cd6fdfedee309ecdcbc2bf5cb82", 67 "Command": "echo 222222", 68 "Created": 1367854155, 69 "Status": "Exit 0", 70 "Ports": [], 71 "Labels": {}, 72 "SizeRw": 12288, 73 "SizeRootFs": 0 74 }, 75 { 76 "Id": "3176a2479c92", 77 "Names":["/sleepy_dog"], 78 "Image": "ubuntu:latest", 79 "ImageID": "d74508fb6632491cea586a1fd7d748dfc5274cd6fdfedee309ecdcbc2bf5cb82", 80 "Command": "echo 3333333333333333", 81 "Created": 1367854154, 82 "Status": "Exit 0", 83 "Ports":[], 84 "Labels": {}, 85 "SizeRw":12288, 86 "SizeRootFs":0 87 }, 88 { 89 "Id": "4cb07b47f9fb", 90 "Names":["/running_cat"], 91 "Image": "ubuntu:latest", 92 "ImageID": "d74508fb6632491cea586a1fd7d748dfc5274cd6fdfedee309ecdcbc2bf5cb82", 93 "Command": "echo 444444444444444444444444444444444", 94 "Created": 1367854152, 95 "Status": "Exit 0", 96 "Ports": [], 97 "Labels": {}, 98 "SizeRw": 12288, 99 "SizeRootFs": 0 100 } 101 ] 102 103 Query Parameters: 104 105 - **all** – 1/True/true or 0/False/false, Show all containers. 106 Only running containers are shown by default (i.e., this defaults to false) 107 - **limit** – Show `limit` last created 108 containers, include non-running ones. 109 - **since** – Show only containers created since Id, include 110 non-running ones. 111 - **before** – Show only containers created before Id, include 112 non-running ones. 113 - **size** – 1/True/true or 0/False/false, Show the containers 114 sizes 115 - **filters** - a JSON encoded value of the filters (a `map[string][]string`) to process on the containers list. Available filters: 116 - `exited=<int>`; -- containers with exit code of `<int>` ; 117 - `status=`(`created`|`restarting`|`running`|`paused`|`exited`) 118 - `label=key` or `label="key=value"` of a container label 119 120 Status Codes: 121 122 - **200** – no error 123 - **400** – bad parameter 124 - **500** – server error 125 126 ### Create a container 127 128 `POST /containers/create` 129 130 Create a container 131 132 **Example request**: 133 134 POST /containers/create HTTP/1.1 135 Content-Type: application/json 136 137 { 138 "Hostname": "", 139 "Domainname": "", 140 "User": "", 141 "AttachStdin": false, 142 "AttachStdout": true, 143 "AttachStderr": true, 144 "Tty": false, 145 "OpenStdin": false, 146 "StdinOnce": false, 147 "Env": [ 148 "FOO=bar", 149 "BAZ=quux" 150 ], 151 "Cmd": [ 152 "date" 153 ], 154 "Entrypoint": "", 155 "Image": "ubuntu", 156 "Labels": { 157 "com.example.vendor": "Acme", 158 "com.example.license": "GPL", 159 "com.example.version": "1.0" 160 }, 161 "Volumes": { 162 "/volumes/data": {} 163 }, 164 "WorkingDir": "", 165 "NetworkDisabled": false, 166 "MacAddress": "12:34:56:78:9a:bc", 167 "ExposedPorts": { 168 "22/tcp": {} 169 }, 170 "StopSignal": "SIGTERM", 171 "HostConfig": { 172 "Binds": ["/tmp:/tmp"], 173 "Links": ["redis3:redis"], 174 "LxcConf": {"lxc.utsname":"docker"}, 175 "Memory": 0, 176 "MemorySwap": 0, 177 "MemoryReservation": 0, 178 "KernelMemory": 0, 179 "CpuShares": 512, 180 "CpuPeriod": 100000, 181 "CpuQuota": 50000, 182 "CpusetCpus": "0,1", 183 "CpusetMems": "0,1", 184 "BlkioWeight": 300, 185 "MemorySwappiness": 60, 186 "OomKillDisable": false, 187 "PortBindings": { "22/tcp": [{ "HostPort": "11022" }] }, 188 "PublishAllPorts": false, 189 "Privileged": false, 190 "ReadonlyRootfs": false, 191 "Dns": ["8.8.8.8"], 192 "DnsOptions": [""], 193 "DnsSearch": [""], 194 "ExtraHosts": null, 195 "VolumesFrom": ["parent", "other:ro"], 196 "CapAdd": ["NET_ADMIN"], 197 "CapDrop": ["MKNOD"], 198 "GroupAdd": ["newgroup"], 199 "RestartPolicy": { "Name": "", "MaximumRetryCount": 0 }, 200 "NetworkMode": "bridge", 201 "Devices": [], 202 "Sysctls": { "net.ipv4.ip_forward": "1" }, 203 "Ulimits": [{}], 204 "LogConfig": { "Type": "json-file", "Config": {} }, 205 "SecurityOpt": [], 206 "CgroupParent": "", 207 "VolumeDriver": "" 208 } 209 } 210 211 **Example response**: 212 213 HTTP/1.1 201 Created 214 Content-Type: application/json 215 216 { 217 "Id":"e90e34656806", 218 "Warnings":[] 219 } 220 221 Json Parameters: 222 223 - **Hostname** - A string value containing the hostname to use for the 224 container. 225 - **Domainname** - A string value containing the domain name to use 226 for the container. 227 - **User** - A string value specifying the user inside the container. 228 - **AttachStdin** - Boolean value, attaches to `stdin`. 229 - **AttachStdout** - Boolean value, attaches to `stdout`. 230 - **AttachStderr** - Boolean value, attaches to `stderr`. 231 - **Tty** - Boolean value, Attach standard streams to a `tty`, including `stdin` if it is not closed. 232 - **OpenStdin** - Boolean value, opens stdin, 233 - **StdinOnce** - Boolean value, close `stdin` after the 1 attached client disconnects. 234 - **Env** - A list of environment variables in the form of `["VAR=value"[,"VAR2=value2"]]` 235 - **Labels** - Adds a map of labels to a container. To specify a map: `{"key":"value"[,"key2":"value2"]}` 236 - **Cmd** - Command to run specified as a string or an array of strings. 237 - **Entrypoint** - Set the entry point for the container as a string or an array 238 of strings. 239 - **Image** - A string specifying the image name to use for the container. 240 - **Volumes** - An object mapping mount point paths (strings) inside the 241 container to empty objects. 242 - **WorkingDir** - A string specifying the working directory for commands to 243 run in. 244 - **NetworkDisabled** - Boolean value, when true disables networking for the 245 container 246 - **ExposedPorts** - An object mapping ports to an empty object in the form of: 247 `"ExposedPorts": { "<port>/<tcp|udp>: {}" }` 248 - **StopSignal** - Signal to stop a container as a string or unsigned integer. `SIGTERM` by default. 249 - **HostConfig** 250 - **Binds** – A list of volume bindings for this container. Each volume binding is a string in one of these forms: 251 + `container_path` to create a new volume for the container 252 + `host_path:container_path` to bind-mount a host path into the container 253 + `host_path:container_path:ro` to make the bind-mount read-only inside the container. 254 + `volume_name:container_path` to bind-mount a volume managed by a volume plugin into the container. 255 + `volume_name:container_path:ro` to make the bind mount read-only inside the container. 256 - **Links** - A list of links for the container. Each link entry should be 257 in the form of `container_name:alias`. 258 - **LxcConf** - LXC specific configurations. These configurations only 259 work when using the `lxc` execution driver. 260 - **Memory** - Memory limit in bytes. 261 - **MemorySwap** - Total memory limit (memory + swap); set `-1` to enable unlimited swap. 262 You must use this with `memory` and make the swap value larger than `memory`. 263 - **MemoryReservation** - Memory soft limit in bytes. 264 - **KernelMemory** - Kernel memory limit in bytes. 265 - **CpuShares** - An integer value containing the container's CPU Shares 266 (ie. the relative weight vs other containers). 267 - **CpuPeriod** - The length of a CPU period in microseconds. 268 - **CpuQuota** - Microseconds of CPU time that the container can get in a CPU period. 269 - **CpusetCpus** - String value containing the `cgroups CpusetCpus` to use. 270 - **CpusetMems** - Memory nodes (MEMs) in which to allow execution (0-3, 0,1). Only effective on NUMA systems. 271 - **BlkioWeight** - Block IO weight (relative weight) accepts a weight value between 10 and 1000. 272 - **MemorySwappiness** - Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. 273 - **OomKillDisable** - Boolean value, whether to disable OOM Killer for the container or not. 274 - **PortBindings** - A map of exposed container ports and the host port they 275 should map to. A JSON object in the form 276 `{ <port>/<protocol>: [{ "HostPort": "<port>" }] }` 277 Take note that `port` is specified as a string and not an integer value. 278 - **PublishAllPorts** - Allocates a random host port for all of a container's 279 exposed ports. Specified as a boolean value. 280 - **Privileged** - Gives the container full access to the host. Specified as 281 a boolean value. 282 - **ReadonlyRootfs** - Mount the container's root filesystem as read only. 283 Specified as a boolean value. 284 - **Dns** - A list of DNS servers for the container to use. 285 - **DnsOptions** - A list of DNS options 286 - **DnsSearch** - A list of DNS search domains 287 - **ExtraHosts** - A list of hostnames/IP mappings to add to the 288 container's `/etc/hosts` file. Specified in the form `["hostname:IP"]`. 289 - **VolumesFrom** - A list of volumes to inherit from another container. 290 Specified in the form `<container name>[:<ro|rw>]` 291 - **CapAdd** - A list of kernel capabilities to add to the container. 292 - **Capdrop** - A list of kernel capabilities to drop from the container. 293 - **GroupAdd** - A list of additional groups that the container process will run as 294 - **RestartPolicy** – The behavior to apply when the container exits. The 295 value is an object with a `Name` property of either `"always"` to 296 always restart, `"unless-stopped"` to restart always except when 297 user has manually stopped the container or `"on-failure"` to restart only when the container 298 exit code is non-zero. If `on-failure` is used, `MaximumRetryCount` 299 controls the number of times to retry before giving up. 300 The default is not to restart. (optional) 301 An ever increasing delay (double the previous delay, starting at 100mS) 302 is added before each restart to prevent flooding the server. 303 - **NetworkMode** - Sets the networking mode for the container. Supported 304 standard values are: `bridge`, `host`, `none`, and `container:<name|id>`. Any other value is taken 305 as a custom network's name to which this container should connect to. 306 - **Devices** - A list of devices to add to the container specified as a JSON object in the 307 form 308 `{ "PathOnHost": "/dev/deviceName", "PathInContainer": "/dev/deviceName", "CgroupPermissions": "mrw"}` 309 - **Ulimits** - A list of ulimits to set in the container, specified as 310 `{ "Name": <name>, "Soft": <soft limit>, "Hard": <hard limit> }`, for example: 311 `Ulimits: { "Name": "nofile", "Soft": 1024, "Hard": 2048 }` 312 - **SecurityOpt**: A list of string values to customize labels for MLS 313 systems, such as SELinux. 314 - **LogConfig** - Log configuration for the container, specified as a JSON object in the form 315 `{ "Type": "<driver_name>", "Config": {"key1": "val1"}}`. 316 Available types: `json-file`, `syslog`, `journald`, `gelf`, `awslogs`, `none`. 317 `json-file` logging driver. 318 - **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. 319 - **VolumeDriver** - Driver that this container users to mount volumes. 320 321 Query Parameters: 322 323 - **name** – Assign the specified name to the container. Must 324 match `/?[a-zA-Z0-9_-]+`. 325 326 Status Codes: 327 328 - **201** – no error 329 - **400** – bad parameter 330 - **404** – no such container 331 - **406** – impossible to attach (container not running) 332 - **500** – server error 333 334 ### Inspect a container 335 336 `GET /containers/(id or name)/json` 337 338 Return low-level information on the container `id` 339 340 341 **Example request**: 342 343 GET /containers/4fa6e0f0c678/json HTTP/1.1 344 345 **Example response**: 346 347 HTTP/1.1 200 OK 348 Content-Type: application/json 349 350 { 351 "AppArmorProfile": "", 352 "Args": [ 353 "-c", 354 "exit 9" 355 ], 356 "Config": { 357 "AttachStderr": true, 358 "AttachStdin": false, 359 "AttachStdout": true, 360 "Cmd": [ 361 "/bin/sh", 362 "-c", 363 "exit 9" 364 ], 365 "Domainname": "", 366 "Entrypoint": null, 367 "Env": [ 368 "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" 369 ], 370 "ExposedPorts": null, 371 "Hostname": "ba033ac44011", 372 "Image": "ubuntu", 373 "Labels": { 374 "com.example.vendor": "Acme", 375 "com.example.license": "GPL", 376 "com.example.version": "1.0" 377 }, 378 "MacAddress": "", 379 "NetworkDisabled": false, 380 "OnBuild": null, 381 "OpenStdin": false, 382 "StdinOnce": false, 383 "Tty": false, 384 "User": "", 385 "Volumes": null, 386 "WorkingDir": "", 387 "StopSignal": "SIGTERM" 388 }, 389 "Created": "2015-01-06T15:47:31.485331387Z", 390 "Driver": "devicemapper", 391 "ExecDriver": "native-0.2", 392 "ExecIDs": null, 393 "HostConfig": { 394 "Binds": null, 395 "BlkioWeight": 0, 396 "CapAdd": null, 397 "CapDrop": null, 398 "ContainerIDFile": "", 399 "CpusetCpus": "", 400 "CpusetMems": "", 401 "CpuShares": 0, 402 "CpuPeriod": 100000, 403 "Devices": [], 404 "Dns": null, 405 "DnsOptions": null, 406 "DnsSearch": null, 407 "ExtraHosts": null, 408 "IpcMode": "", 409 "Links": null, 410 "LxcConf": [], 411 "Memory": 0, 412 "MemorySwap": 0, 413 "MemoryReservation": 0, 414 "KernelMemory": 0, 415 "OomKillDisable": false, 416 "NetworkMode": "bridge", 417 "PortBindings": {}, 418 "Privileged": false, 419 "ReadonlyRootfs": false, 420 "PublishAllPorts": false, 421 "RestartPolicy": { 422 "MaximumRetryCount": 2, 423 "Name": "on-failure" 424 }, 425 "LogConfig": { 426 "Config": null, 427 "Type": "json-file" 428 }, 429 "SecurityOpt": null, 430 "VolumesFrom": null, 431 "Ulimits": [{}], 432 "VolumeDriver": "" 433 }, 434 "HostnamePath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/hostname", 435 "HostsPath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/hosts", 436 "LogPath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b-json.log", 437 "Id": "ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39", 438 "Image": "04c5d3b7b0656168630d3ba35d8889bd0e9caafcaeb3004d2bfbc47e7c5d35d2", 439 "MountLabel": "", 440 "Name": "/boring_euclid", 441 "NetworkSettings": { 442 "Bridge": "", 443 "SandboxID": "", 444 "HairpinMode": false, 445 "LinkLocalIPv6Address": "", 446 "LinkLocalIPv6PrefixLen": 0, 447 "Ports": null, 448 "SandboxKey": "", 449 "SecondaryIPAddresses": null, 450 "SecondaryIPv6Addresses": null, 451 "EndpointID": "", 452 "Gateway": "", 453 "GlobalIPv6Address": "", 454 "GlobalIPv6PrefixLen": 0, 455 "IPAddress": "", 456 "IPPrefixLen": 0, 457 "IPv6Gateway": "", 458 "MacAddress": "", 459 "Networks": { 460 "bridge": { 461 "EndpointID": "", 462 "Gateway": "", 463 "IPAddress": "", 464 "IPPrefixLen": 0, 465 "IPv6Gateway": "", 466 "GlobalIPv6Address": "", 467 "GlobalIPv6PrefixLen": 0, 468 "MacAddress": "" 469 } 470 } 471 }, 472 "Path": "/bin/sh", 473 "ProcessLabel": "", 474 "ResolvConfPath": "/var/lib/docker/containers/ba033ac4401106a3b513bc9d639eee123ad78ca3616b921167cd74b20e25ed39/resolv.conf", 475 "RestartCount": 1, 476 "State": { 477 "Error": "", 478 "ExitCode": 9, 479 "FinishedAt": "2015-01-06T15:47:32.080254511Z", 480 "OOMKilled": false, 481 "Paused": false, 482 "Pid": 0, 483 "Restarting": false, 484 "Running": true, 485 "StartedAt": "2015-01-06T15:47:32.072697474Z", 486 "Status": "running" 487 }, 488 "Mounts": [ 489 { 490 "Source": "/data", 491 "Destination": "/data", 492 "Mode": "ro,Z", 493 "RW": false 494 } 495 ] 496 } 497 498 **Example request, with size information**: 499 500 GET /containers/4fa6e0f0c678/json?size=1 HTTP/1.1 501 502 **Example response, with size information**: 503 504 HTTP/1.1 200 OK 505 Content-Type: application/json 506 507 { 508 .... 509 "SizeRw": 0, 510 "SizeRootFs": 972, 511 .... 512 } 513 514 Query Parameters: 515 516 - **size** – 1/True/true or 0/False/false, return container size information. Default is `false`. 517 518 Status Codes: 519 520 - **200** – no error 521 - **404** – no such container 522 - **500** – server error 523 524 ### List processes running inside a container 525 526 `GET /containers/(id or name)/top` 527 528 List processes running inside the container `id`. On Unix systems this 529 is done by running the `ps` command. This endpoint is not 530 supported on Windows. 531 532 **Example request**: 533 534 GET /containers/4fa6e0f0c678/top HTTP/1.1 535 536 **Example response**: 537 538 HTTP/1.1 200 OK 539 Content-Type: application/json 540 541 { 542 "Titles" : [ 543 "UID", "PID", "PPID", "C", "STIME", "TTY", "TIME", "CMD" 544 ], 545 "Processes" : [ 546 [ 547 "root", "13642", "882", "0", "17:03", "pts/0", "00:00:00", "/bin/bash" 548 ], 549 [ 550 "root", "13735", "13642", "0", "17:06", "pts/0", "00:00:00", "sleep 10" 551 ] 552 ] 553 } 554 555 **Example request**: 556 557 GET /containers/4fa6e0f0c678/top?ps_args=aux HTTP/1.1 558 559 **Example response**: 560 561 HTTP/1.1 200 OK 562 Content-Type: application/json 563 564 { 565 "Titles" : [ 566 "USER","PID","%CPU","%MEM","VSZ","RSS","TTY","STAT","START","TIME","COMMAND" 567 ] 568 "Processes" : [ 569 [ 570 "root","13642","0.0","0.1","18172","3184","pts/0","Ss","17:03","0:00","/bin/bash" 571 ], 572 [ 573 "root","13895","0.0","0.0","4348","692","pts/0","S+","17:15","0:00","sleep 10" 574 ] 575 ], 576 } 577 578 Query Parameters: 579 580 - **ps_args** – `ps` arguments to use (e.g., `aux`), defaults to `-ef` 581 582 Status Codes: 583 584 - **200** – no error 585 - **404** – no such container 586 - **500** – server error 587 588 ### Get container logs 589 590 `GET /containers/(id or name)/logs` 591 592 Get `stdout` and `stderr` logs from the container ``id`` 593 594 > **Note**: 595 > This endpoint works only for containers with the `json-file` or `journald` logging drivers. 596 597 **Example request**: 598 599 GET /containers/4fa6e0f0c678/logs?stderr=1&stdout=1×tamps=1&follow=1&tail=10&since=1428990821 HTTP/1.1 600 601 **Example response**: 602 603 HTTP/1.1 101 UPGRADED 604 Content-Type: application/vnd.docker.raw-stream 605 Connection: Upgrade 606 Upgrade: tcp 607 608 {{ STREAM }} 609 610 Query Parameters: 611 612 - **follow** – 1/True/true or 0/False/false, return stream. Default `false`. 613 - **stdout** – 1/True/true or 0/False/false, show `stdout` log. Default `false`. 614 - **stderr** – 1/True/true or 0/False/false, show `stderr` log. Default `false`. 615 - **since** – UNIX timestamp (integer) to filter logs. Specifying a timestamp 616 will only output log-entries since that timestamp. Default: 0 (unfiltered) 617 - **timestamps** – 1/True/true or 0/False/false, print timestamps for 618 every log line. Default `false`. 619 - **tail** – Output specified number of lines at the end of logs: `all` or `<number>`. Default all. 620 621 Status Codes: 622 623 - **101** – no error, hints proxy about hijacking 624 - **200** – no error, no upgrade header found 625 - **404** – no such container 626 - **500** – server error 627 628 ### Inspect changes on a container's filesystem 629 630 `GET /containers/(id or name)/changes` 631 632 Inspect changes on container `id`'s filesystem 633 634 **Example request**: 635 636 GET /containers/4fa6e0f0c678/changes HTTP/1.1 637 638 **Example response**: 639 640 HTTP/1.1 200 OK 641 Content-Type: application/json 642 643 [ 644 { 645 "Path": "/dev", 646 "Kind": 0 647 }, 648 { 649 "Path": "/dev/kmsg", 650 "Kind": 1 651 }, 652 { 653 "Path": "/test", 654 "Kind": 1 655 } 656 ] 657 658 Values for `Kind`: 659 660 - `0`: Modify 661 - `1`: Add 662 - `2`: Delete 663 664 Status Codes: 665 666 - **200** – no error 667 - **404** – no such container 668 - **500** – server error 669 670 ### Export a container 671 672 `GET /containers/(id or name)/export` 673 674 Export the contents of container `id` 675 676 **Example request**: 677 678 GET /containers/4fa6e0f0c678/export HTTP/1.1 679 680 **Example response**: 681 682 HTTP/1.1 200 OK 683 Content-Type: application/octet-stream 684 685 {{ TAR STREAM }} 686 687 Status Codes: 688 689 - **200** – no error 690 - **404** – no such container 691 - **500** – server error 692 693 ### Get container stats based on resource usage 694 695 `GET /containers/(id or name)/stats` 696 697 This endpoint returns a live stream of a container's resource usage statistics. 698 699 **Example request**: 700 701 GET /containers/redis1/stats HTTP/1.1 702 703 **Example response**: 704 705 HTTP/1.1 200 OK 706 Content-Type: application/json 707 708 { 709 "read" : "2015-01-08T22:57:31.547920715Z", 710 "networks": { 711 "eth0": { 712 "rx_bytes": 5338, 713 "rx_dropped": 0, 714 "rx_errors": 0, 715 "rx_packets": 36, 716 "tx_bytes": 648, 717 "tx_dropped": 0, 718 "tx_errors": 0, 719 "tx_packets": 8 720 }, 721 "eth5": { 722 "rx_bytes": 4641, 723 "rx_dropped": 0, 724 "rx_errors": 0, 725 "rx_packets": 26, 726 "tx_bytes": 690, 727 "tx_dropped": 0, 728 "tx_errors": 0, 729 "tx_packets": 9 730 } 731 }, 732 "memory_stats" : { 733 "stats" : { 734 "total_pgmajfault" : 0, 735 "cache" : 0, 736 "mapped_file" : 0, 737 "total_inactive_file" : 0, 738 "pgpgout" : 414, 739 "rss" : 6537216, 740 "total_mapped_file" : 0, 741 "writeback" : 0, 742 "unevictable" : 0, 743 "pgpgin" : 477, 744 "total_unevictable" : 0, 745 "pgmajfault" : 0, 746 "total_rss" : 6537216, 747 "total_rss_huge" : 6291456, 748 "total_writeback" : 0, 749 "total_inactive_anon" : 0, 750 "rss_huge" : 6291456, 751 "hierarchical_memory_limit" : 67108864, 752 "total_pgfault" : 964, 753 "total_active_file" : 0, 754 "active_anon" : 6537216, 755 "total_active_anon" : 6537216, 756 "total_pgpgout" : 414, 757 "total_cache" : 0, 758 "inactive_anon" : 0, 759 "active_file" : 0, 760 "pgfault" : 964, 761 "inactive_file" : 0, 762 "total_pgpgin" : 477 763 }, 764 "max_usage" : 6651904, 765 "usage" : 6537216, 766 "failcnt" : 0, 767 "limit" : 67108864 768 }, 769 "blkio_stats" : {}, 770 "cpu_stats" : { 771 "cpu_usage" : { 772 "percpu_usage" : [ 773 8646879, 774 24472255, 775 36438778, 776 30657443 777 ], 778 "usage_in_usermode" : 50000000, 779 "total_usage" : 100215355, 780 "usage_in_kernelmode" : 30000000 781 }, 782 "system_cpu_usage" : 739306590000000, 783 "throttling_data" : {"periods":0,"throttled_periods":0,"throttled_time":0} 784 }, 785 "precpu_stats" : { 786 "cpu_usage" : { 787 "percpu_usage" : [ 788 8646879, 789 24350896, 790 36438778, 791 30657443 792 ], 793 "usage_in_usermode" : 50000000, 794 "total_usage" : 100093996, 795 "usage_in_kernelmode" : 30000000 796 }, 797 "system_cpu_usage" : 9492140000000, 798 "throttling_data" : {"periods":0,"throttled_periods":0,"throttled_time":0} 799 } 800 } 801 802 The precpu_stats is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the “cpu_stats” field. 803 804 Query Parameters: 805 806 - **stream** – 1/True/true or 0/False/false, pull stats once then disconnect. Default `true`. 807 808 Status Codes: 809 810 - **200** – no error 811 - **404** – no such container 812 - **500** – server error 813 814 ### Resize a container TTY 815 816 `POST /containers/(id or name)/resize` 817 818 Resize the TTY for container with `id`. The unit is number of characters. You must restart the container for the resize to take effect. 819 820 **Example request**: 821 822 POST /containers/4fa6e0f0c678/resize?h=40&w=80 HTTP/1.1 823 824 **Example response**: 825 826 HTTP/1.1 200 OK 827 Content-Length: 0 828 Content-Type: text/plain; charset=utf-8 829 830 Query Parameters: 831 832 - **h** – height of `tty` session 833 - **w** – width 834 835 Status Codes: 836 837 - **200** – no error 838 - **404** – No such container 839 - **500** – Cannot resize container 840 841 ### Start a container 842 843 `POST /containers/(id or name)/start` 844 845 Start the container `id` 846 847 > **Note**: 848 > For backwards compatibility, this endpoint accepts a `HostConfig` as JSON-encoded request body. 849 > See [create a container](#create-a-container) for details. 850 851 **Example request**: 852 853 POST /containers/e90e34656806/start HTTP/1.1 854 855 **Example response**: 856 857 HTTP/1.1 204 No Content 858 859 Status Codes: 860 861 - **204** – no error 862 - **304** – container already started 863 - **404** – no such container 864 - **500** – server error 865 866 ### Stop a container 867 868 `POST /containers/(id or name)/stop` 869 870 Stop the container `id` 871 872 **Example request**: 873 874 POST /containers/e90e34656806/stop?t=5 HTTP/1.1 875 876 **Example response**: 877 878 HTTP/1.1 204 No Content 879 880 Query Parameters: 881 882 - **t** – number of seconds to wait before killing the container 883 884 Status Codes: 885 886 - **204** – no error 887 - **304** – container already stopped 888 - **404** – no such container 889 - **500** – server error 890 891 ### Restart a container 892 893 `POST /containers/(id or name)/restart` 894 895 Restart the container `id` 896 897 **Example request**: 898 899 POST /containers/e90e34656806/restart?t=5 HTTP/1.1 900 901 **Example response**: 902 903 HTTP/1.1 204 No Content 904 905 Query Parameters: 906 907 - **t** – number of seconds to wait before killing the container 908 909 Status Codes: 910 911 - **204** – no error 912 - **404** – no such container 913 - **500** – server error 914 915 ### Kill a container 916 917 `POST /containers/(id or name)/kill` 918 919 Kill the container `id` 920 921 **Example request**: 922 923 POST /containers/e90e34656806/kill HTTP/1.1 924 925 **Example response**: 926 927 HTTP/1.1 204 No Content 928 929 Query Parameters 930 931 - **signal** - Signal to send to the container: integer or string like `SIGINT`. 932 When not set, `SIGKILL` is assumed and the call waits for the container to exit. 933 934 Status Codes: 935 936 - **204** – no error 937 - **404** – no such container 938 - **500** – server error 939 940 ### Rename a container 941 942 `POST /containers/(id or name)/rename` 943 944 Rename the container `id` to a `new_name` 945 946 **Example request**: 947 948 POST /containers/e90e34656806/rename?name=new_name HTTP/1.1 949 950 **Example response**: 951 952 HTTP/1.1 204 No Content 953 954 Query Parameters: 955 956 - **name** – new name for the container 957 958 Status Codes: 959 960 - **204** – no error 961 - **404** – no such container 962 - **409** - conflict name already assigned 963 - **500** – server error 964 965 ### Pause a container 966 967 `POST /containers/(id or name)/pause` 968 969 Pause the container `id` 970 971 **Example request**: 972 973 POST /containers/e90e34656806/pause HTTP/1.1 974 975 **Example response**: 976 977 HTTP/1.1 204 No Content 978 979 Status Codes: 980 981 - **204** – no error 982 - **404** – no such container 983 - **500** – server error 984 985 ### Unpause a container 986 987 `POST /containers/(id or name)/unpause` 988 989 Unpause the container `id` 990 991 **Example request**: 992 993 POST /containers/e90e34656806/unpause HTTP/1.1 994 995 **Example response**: 996 997 HTTP/1.1 204 No Content 998 999 Status Codes: 1000 1001 - **204** – no error 1002 - **404** – no such container 1003 - **500** – server error 1004 1005 ### Attach to a container 1006 1007 `POST /containers/(id or name)/attach` 1008 1009 Attach to the container `id` 1010 1011 **Example request**: 1012 1013 POST /containers/16253994b7c4/attach?logs=1&stream=0&stdout=1 HTTP/1.1 1014 1015 **Example response**: 1016 1017 HTTP/1.1 101 UPGRADED 1018 Content-Type: application/vnd.docker.raw-stream 1019 Connection: Upgrade 1020 Upgrade: tcp 1021 1022 {{ STREAM }} 1023 1024 Query Parameters: 1025 1026 - **logs** – 1/True/true or 0/False/false, return logs. Default `false`. 1027 - **stream** – 1/True/true or 0/False/false, return stream. 1028 Default `false`. 1029 - **stdin** – 1/True/true or 0/False/false, if `stream=true`, attach 1030 to `stdin`. Default `false`. 1031 - **stdout** – 1/True/true or 0/False/false, if `logs=true`, return 1032 `stdout` log, if `stream=true`, attach to `stdout`. Default `false`. 1033 - **stderr** – 1/True/true or 0/False/false, if `logs=true`, return 1034 `stderr` log, if `stream=true`, attach to `stderr`. Default `false`. 1035 1036 Status Codes: 1037 1038 - **101** – no error, hints proxy about hijacking 1039 - **200** – no error, no upgrade header found 1040 - **400** – bad parameter 1041 - **404** – no such container 1042 - **500** – server error 1043 1044 **Stream details**: 1045 1046 When using the TTY setting is enabled in 1047 [`POST /containers/create` 1048 ](#create-a-container), 1049 the stream is the raw data from the process PTY and client's `stdin`. 1050 When the TTY is disabled, then the stream is multiplexed to separate 1051 `stdout` and `stderr`. 1052 1053 The format is a **Header** and a **Payload** (frame). 1054 1055 **HEADER** 1056 1057 The header contains the information which the stream writes (`stdout` or 1058 `stderr`). It also contains the size of the associated frame encoded in the 1059 last four bytes (`uint32`). 1060 1061 It is encoded on the first eight bytes like this: 1062 1063 header := [8]byte{STREAM_TYPE, 0, 0, 0, SIZE1, SIZE2, SIZE3, SIZE4} 1064 1065 `STREAM_TYPE` can be: 1066 1067 - 0: `stdin` (is written on `stdout`) 1068 - 1: `stdout` 1069 - 2: `stderr` 1070 1071 `SIZE1, SIZE2, SIZE3, SIZE4` are the four bytes of 1072 the `uint32` size encoded as big endian. 1073 1074 **PAYLOAD** 1075 1076 The payload is the raw stream. 1077 1078 **IMPLEMENTATION** 1079 1080 The simplest way to implement the Attach protocol is the following: 1081 1082 1. Read eight bytes. 1083 2. Choose `stdout` or `stderr` depending on the first byte. 1084 3. Extract the frame size from the last four bytes. 1085 4. Read the extracted size and output it on the correct output. 1086 5. Goto 1. 1087 1088 ### Attach to a container (websocket) 1089 1090 `GET /containers/(id or name)/attach/ws` 1091 1092 Attach to the container `id` via websocket 1093 1094 Implements websocket protocol handshake according to [RFC 6455](http://tools.ietf.org/html/rfc6455) 1095 1096 **Example request** 1097 1098 GET /containers/e90e34656806/attach/ws?logs=0&stream=1&stdin=1&stdout=1&stderr=1 HTTP/1.1 1099 1100 **Example response** 1101 1102 {{ STREAM }} 1103 1104 Query Parameters: 1105 1106 - **logs** – 1/True/true or 0/False/false, return logs. Default `false`. 1107 - **stream** – 1/True/true or 0/False/false, return stream. 1108 Default `false`. 1109 - **stdin** – 1/True/true or 0/False/false, if `stream=true`, attach 1110 to `stdin`. Default `false`. 1111 - **stdout** – 1/True/true or 0/False/false, if `logs=true`, return 1112 `stdout` log, if `stream=true`, attach to `stdout`. Default `false`. 1113 - **stderr** – 1/True/true or 0/False/false, if `logs=true`, return 1114 `stderr` log, if `stream=true`, attach to `stderr`. Default `false`. 1115 1116 Status Codes: 1117 1118 - **200** – no error 1119 - **400** – bad parameter 1120 - **404** – no such container 1121 - **500** – server error 1122 1123 ### Wait a container 1124 1125 `POST /containers/(id or name)/wait` 1126 1127 Block until container `id` stops, then returns the exit code 1128 1129 **Example request**: 1130 1131 POST /containers/16253994b7c4/wait HTTP/1.1 1132 1133 **Example response**: 1134 1135 HTTP/1.1 200 OK 1136 Content-Type: application/json 1137 1138 {"StatusCode": 0} 1139 1140 Status Codes: 1141 1142 - **200** – no error 1143 - **404** – no such container 1144 - **500** – server error 1145 1146 ### Remove a container 1147 1148 `DELETE /containers/(id or name)` 1149 1150 Remove the container `id` from the filesystem 1151 1152 **Example request**: 1153 1154 DELETE /containers/16253994b7c4?v=1 HTTP/1.1 1155 1156 **Example response**: 1157 1158 HTTP/1.1 204 No Content 1159 1160 Query Parameters: 1161 1162 - **v** – 1/True/true or 0/False/false, Remove the volumes 1163 associated to the container. Default `false`. 1164 - **force** - 1/True/true or 0/False/false, Kill then remove the container. 1165 Default `false`. 1166 1167 Status Codes: 1168 1169 - **204** – no error 1170 - **400** – bad parameter 1171 - **404** – no such container 1172 - **500** – server error 1173 1174 ### Copy files or folders from a container 1175 1176 `POST /containers/(id or name)/copy` 1177 1178 Copy files or folders of container `id` 1179 1180 **Deprecated** in favor of the `archive` endpoint below. 1181 1182 **Example request**: 1183 1184 POST /containers/4fa6e0f0c678/copy HTTP/1.1 1185 Content-Type: application/json 1186 1187 { 1188 "Resource": "test.txt" 1189 } 1190 1191 **Example response**: 1192 1193 HTTP/1.1 200 OK 1194 Content-Type: application/x-tar 1195 1196 {{ TAR STREAM }} 1197 1198 Status Codes: 1199 1200 - **200** – no error 1201 - **404** – no such container 1202 - **500** – server error 1203 1204 ### Retrieving information about files and folders in a container 1205 1206 `HEAD /containers/(id or name)/archive` 1207 1208 See the description of the `X-Docker-Container-Path-Stat` header in the 1209 following section. 1210 1211 ### Get an archive of a filesystem resource in a container 1212 1213 `GET /containers/(id or name)/archive` 1214 1215 Get a tar archive of a resource in the filesystem of container `id`. 1216 1217 Query Parameters: 1218 1219 - **path** - resource in the container's filesystem to archive. Required. 1220 1221 If not an absolute path, it is relative to the container's root directory. 1222 The resource specified by **path** must exist. To assert that the resource 1223 is expected to be a directory, **path** should end in `/` or `/.` 1224 (assuming a path separator of `/`). If **path** ends in `/.` then this 1225 indicates that only the contents of the **path** directory should be 1226 copied. A symlink is always resolved to its target. 1227 1228 **Note**: It is not possible to copy certain system files such as resources 1229 under `/proc`, `/sys`, `/dev`, and mounts created by the user in the 1230 container. 1231 1232 **Example request**: 1233 1234 GET /containers/8cce319429b2/archive?path=/root HTTP/1.1 1235 1236 **Example response**: 1237 1238 HTTP/1.1 200 OK 1239 Content-Type: application/x-tar 1240 X-Docker-Container-Path-Stat: eyJuYW1lIjoicm9vdCIsInNpemUiOjQwOTYsIm1vZGUiOjIxNDc0ODQwOTYsIm10aW1lIjoiMjAxNC0wMi0yN1QyMDo1MToyM1oiLCJsaW5rVGFyZ2V0IjoiIn0= 1241 1242 {{ TAR STREAM }} 1243 1244 On success, a response header `X-Docker-Container-Path-Stat` will be set to a 1245 base64-encoded JSON object containing some filesystem header information about 1246 the archived resource. The above example value would decode to the following 1247 JSON object (whitespace added for readability): 1248 1249 { 1250 "name": "root", 1251 "size": 4096, 1252 "mode": 2147484096, 1253 "mtime": "2014-02-27T20:51:23Z", 1254 "linkTarget": "" 1255 } 1256 1257 A `HEAD` request can also be made to this endpoint if only this information is 1258 desired. 1259 1260 Status Codes: 1261 1262 - **200** - success, returns archive of copied resource 1263 - **400** - client error, bad parameter, details in JSON response body, one of: 1264 - must specify path parameter (**path** cannot be empty) 1265 - not a directory (**path** was asserted to be a directory but exists as a 1266 file) 1267 - **404** - client error, resource not found, one of: 1268 – no such container (container `id` does not exist) 1269 - no such file or directory (**path** does not exist) 1270 - **500** - server error 1271 1272 ### Extract an archive of files or folders to a directory in a container 1273 1274 `PUT /containers/(id or name)/archive` 1275 1276 Upload a tar archive to be extracted to a path in the filesystem of container 1277 `id`. 1278 1279 Query Parameters: 1280 1281 - **path** - path to a directory in the container 1282 to extract the archive's contents into. Required. 1283 1284 If not an absolute path, it is relative to the container's root directory. 1285 The **path** resource must exist. 1286 - **noOverwriteDirNonDir** - If "1", "true", or "True" then it will be an error 1287 if unpacking the given content would cause an existing directory to be 1288 replaced with a non-directory and vice versa. 1289 1290 **Example request**: 1291 1292 PUT /containers/8cce319429b2/archive?path=/vol1 HTTP/1.1 1293 Content-Type: application/x-tar 1294 1295 {{ TAR STREAM }} 1296 1297 **Example response**: 1298 1299 HTTP/1.1 200 OK 1300 1301 Status Codes: 1302 1303 - **200** – the content was extracted successfully 1304 - **400** - client error, bad parameter, details in JSON response body, one of: 1305 - must specify path parameter (**path** cannot be empty) 1306 - not a directory (**path** should be a directory but exists as a file) 1307 - unable to overwrite existing directory with non-directory 1308 (if **noOverwriteDirNonDir**) 1309 - unable to overwrite existing non-directory with directory 1310 (if **noOverwriteDirNonDir**) 1311 - **403** - client error, permission denied, the volume 1312 or container rootfs is marked as read-only. 1313 - **404** - client error, resource not found, one of: 1314 – no such container (container `id` does not exist) 1315 - no such file or directory (**path** resource does not exist) 1316 - **500** – server error 1317 1318 ## 2.2 Images 1319 1320 ### List Images 1321 1322 `GET /images/json` 1323 1324 **Example request**: 1325 1326 GET /images/json?all=0 HTTP/1.1 1327 1328 **Example response**: 1329 1330 HTTP/1.1 200 OK 1331 Content-Type: application/json 1332 1333 [ 1334 { 1335 "RepoTags": [ 1336 "ubuntu:12.04", 1337 "ubuntu:precise", 1338 "ubuntu:latest" 1339 ], 1340 "Id": "8dbd9e392a964056420e5d58ca5cc376ef18e2de93b5cc90e868a1bbc8318c1c", 1341 "Created": 1365714795, 1342 "Size": 131506275, 1343 "VirtualSize": 131506275, 1344 "Labels": {} 1345 }, 1346 { 1347 "RepoTags": [ 1348 "ubuntu:12.10", 1349 "ubuntu:quantal" 1350 ], 1351 "ParentId": "27cf784147099545", 1352 "Id": "b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc", 1353 "Created": 1364102658, 1354 "Size": 24653, 1355 "VirtualSize": 180116135, 1356 "Labels": { 1357 "com.example.version": "v1" 1358 } 1359 } 1360 ] 1361 1362 **Example request, with digest information**: 1363 1364 GET /images/json?digests=1 HTTP/1.1 1365 1366 **Example response, with digest information**: 1367 1368 HTTP/1.1 200 OK 1369 Content-Type: application/json 1370 1371 [ 1372 { 1373 "Created": 1420064636, 1374 "Id": "4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125", 1375 "ParentId": "ea13149945cb6b1e746bf28032f02e9b5a793523481a0a18645fc77ad53c4ea2", 1376 "RepoDigests": [ 1377 "localhost:5000/test/busybox@sha256:cbbf2f9a99b47fc460d422812b6a5adff7dfee951d8fa2e4a98caa0382cfbdbf" 1378 ], 1379 "RepoTags": [ 1380 "localhost:5000/test/busybox:latest", 1381 "playdate:latest" 1382 ], 1383 "Size": 0, 1384 "VirtualSize": 2429728, 1385 "Labels": {} 1386 } 1387 ] 1388 1389 The response shows a single image `Id` associated with two repositories 1390 (`RepoTags`): `localhost:5000/test/busybox`: and `playdate`. A caller can use 1391 either of the `RepoTags` values `localhost:5000/test/busybox:latest` or 1392 `playdate:latest` to reference the image. 1393 1394 You can also use `RepoDigests` values to reference an image. In this response, 1395 the array has only one reference and that is to the 1396 `localhost:5000/test/busybox` repository; the `playdate` repository has no 1397 digest. You can reference this digest using the value: 1398 `localhost:5000/test/busybox@sha256:cbbf2f9a99b47fc460d...` 1399 1400 See the `docker run` and `docker build` commands for examples of digest and tag 1401 references on the command line. 1402 1403 Query Parameters: 1404 1405 - **all** – 1/True/true or 0/False/false, default false 1406 - **filters** – a JSON encoded value of the filters (a map[string][]string) to process on the images list. Available filters: 1407 - `dangling=true` 1408 - `label=key` or `label="key=value"` of an image label 1409 - **filter** - only return images with the specified name 1410 1411 ### Build image from a Dockerfile 1412 1413 `POST /build` 1414 1415 Build an image from a Dockerfile 1416 1417 **Example request**: 1418 1419 POST /build HTTP/1.1 1420 1421 {{ TAR STREAM }} 1422 1423 **Example response**: 1424 1425 HTTP/1.1 200 OK 1426 Content-Type: application/json 1427 1428 {"stream": "Step 1..."} 1429 {"stream": "..."} 1430 {"error": "Error...", "errorDetail": {"code": 123, "message": "Error..."}} 1431 1432 The input stream must be a `tar` archive compressed with one of the 1433 following algorithms: `identity` (no compression), `gzip`, `bzip2`, `xz`. 1434 1435 The archive must include a build instructions file, typically called 1436 `Dockerfile` at the archive's root. The `dockerfile` parameter may be 1437 used to specify a different build instructions file. To do this, its value must be 1438 the path to the alternate build instructions file to use. 1439 1440 The archive may include any number of other files, 1441 which are accessible in the build context (See the [*ADD build 1442 command*](../../reference/builder.md#dockerbuilder)). 1443 1444 The build is canceled if the client drops the connection by quitting 1445 or being killed. 1446 1447 Query Parameters: 1448 1449 - **dockerfile** - Path within the build context to the Dockerfile. This is 1450 ignored if `remote` is specified and points to an individual filename. 1451 - **t** – A name and optional tag to apply to the image in the `name:tag` format. 1452 If you omit the `tag` the default `latest` value is assumed. 1453 You can provide one or more `t` parameters. 1454 - **remote** – A Git repository URI or HTTP/HTTPS URI build source. If the 1455 URI specifies a filename, the file's contents are placed into a file 1456 called `Dockerfile`. 1457 - **q** – Suppress verbose build output. 1458 - **nocache** – Do not use the cache when building the image. 1459 - **pull** - Attempt to pull the image even if an older image exists locally. 1460 - **rm** - Remove intermediate containers after a successful build (default behavior). 1461 - **forcerm** - Always remove intermediate containers (includes `rm`). 1462 - **memory** - Set memory limit for build. 1463 - **memswap** - Total memory (memory + swap), `-1` to enable unlimited swap. 1464 - **cpushares** - CPU shares (relative weight). 1465 - **cpusetcpus** - CPUs in which to allow execution (e.g., `0-3`, `0,1`). 1466 - **cpuperiod** - The length of a CPU period in microseconds. 1467 - **cpuquota** - Microseconds of CPU time that the container can get in a CPU period. 1468 - **buildargs** – JSON map of string pairs for build-time variables. Users pass 1469 these values at build-time. Docker uses the `buildargs` as the environment 1470 context for command(s) run via the Dockerfile's `RUN` instruction or for 1471 variable expansion in other Dockerfile instructions. This is not meant for 1472 passing secret values. [Read more about the buildargs instruction](../../reference/builder.md#arg) 1473 1474 Request Headers: 1475 1476 - **Content-type** – Set to `"application/tar"`. 1477 - **X-Registry-Config** – A base64-url-safe-encoded Registry Auth Config JSON 1478 object with the following structure: 1479 1480 { 1481 "docker.example.com": { 1482 "username": "janedoe", 1483 "password": "hunter2" 1484 }, 1485 "https://index.docker.io/v1/": { 1486 "username": "mobydock", 1487 "password": "conta1n3rize14" 1488 } 1489 } 1490 1491 This object maps the hostname of a registry to an object containing the 1492 "username" and "password" for that registry. Multiple registries may 1493 be specified as the build may be based on an image requiring 1494 authentication to pull from any arbitrary registry. Only the registry 1495 domain name (and port if not the default "443") are required. However 1496 (for legacy reasons) the "official" Docker, Inc. hosted registry must 1497 be specified with both a "https://" prefix and a "/v1/" suffix even 1498 though Docker will prefer to use the v2 registry API. 1499 1500 Status Codes: 1501 1502 - **200** – no error 1503 - **500** – server error 1504 1505 ### Create an image 1506 1507 `POST /images/create` 1508 1509 Create an image either by pulling it from the registry or by importing it 1510 1511 **Example request**: 1512 1513 POST /images/create?fromImage=ubuntu HTTP/1.1 1514 1515 **Example response**: 1516 1517 HTTP/1.1 200 OK 1518 Content-Type: application/json 1519 1520 {"status": "Pulling..."} 1521 {"status": "Pulling", "progress": "1 B/ 100 B", "progressDetail": {"current": 1, "total": 100}} 1522 {"error": "Invalid..."} 1523 ... 1524 1525 When using this endpoint to pull an image from the registry, the 1526 `X-Registry-Auth` header can be used to include 1527 a base64-encoded AuthConfig object. 1528 1529 Query Parameters: 1530 1531 - **fromImage** – Name of the image to pull. The name may include a tag or 1532 digest. This parameter may only be used when pulling an image. 1533 - **fromSrc** – Source to import. The value may be a URL from which the image 1534 can be retrieved or `-` to read the image from the request body. 1535 This parameter may only be used when importing an image. 1536 - **repo** – Repository name given to an image when it is imported. 1537 The repo may include a tag. This parameter may only be used when importing 1538 an image. 1539 - **tag** – Tag or digest. 1540 1541 Request Headers: 1542 1543 - **X-Registry-Auth** – base64-encoded AuthConfig object 1544 1545 Status Codes: 1546 1547 - **200** – no error 1548 - **500** – server error 1549 1550 1551 1552 ### Inspect an image 1553 1554 `GET /images/(name)/json` 1555 1556 Return low-level information on the image `name` 1557 1558 **Example request**: 1559 1560 GET /images/example/json HTTP/1.1 1561 1562 **Example response**: 1563 1564 HTTP/1.1 200 OK 1565 Content-Type: application/json 1566 1567 { 1568 "Id" : "85f05633ddc1c50679be2b16a0479ab6f7637f8884e0cfe0f4d20e1ebb3d6e7c", 1569 "Container" : "cb91e48a60d01f1e27028b4fc6819f4f290b3cf12496c8176ec714d0d390984a", 1570 "Comment" : "", 1571 "Os" : "linux", 1572 "Architecture" : "amd64", 1573 "Parent" : "91e54dfb11794fad694460162bf0cb0a4fa710cfa3f60979c177d920813e267c", 1574 "ContainerConfig" : { 1575 "Tty" : false, 1576 "Hostname" : "e611e15f9c9d", 1577 "Volumes" : null, 1578 "Domainname" : "", 1579 "AttachStdout" : false, 1580 "PublishService" : "", 1581 "AttachStdin" : false, 1582 "OpenStdin" : false, 1583 "StdinOnce" : false, 1584 "NetworkDisabled" : false, 1585 "OnBuild" : [], 1586 "Image" : "91e54dfb11794fad694460162bf0cb0a4fa710cfa3f60979c177d920813e267c", 1587 "User" : "", 1588 "WorkingDir" : "", 1589 "Entrypoint" : null, 1590 "MacAddress" : "", 1591 "AttachStderr" : false, 1592 "Labels" : { 1593 "com.example.license" : "GPL", 1594 "com.example.version" : "1.0", 1595 "com.example.vendor" : "Acme" 1596 }, 1597 "Env" : [ 1598 "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" 1599 ], 1600 "ExposedPorts" : null, 1601 "Cmd" : [ 1602 "/bin/sh", 1603 "-c", 1604 "#(nop) LABEL com.example.vendor=Acme com.example.license=GPL com.example.version=1.0" 1605 ] 1606 }, 1607 "DockerVersion" : "1.9.0-dev", 1608 "VirtualSize" : 188359297, 1609 "Size" : 0, 1610 "Author" : "", 1611 "Created" : "2015-09-10T08:30:53.26995814Z", 1612 "GraphDriver" : { 1613 "Name" : "aufs", 1614 "Data" : null 1615 }, 1616 "RepoDigests" : [ 1617 "localhost:5000/test/busybox/example@sha256:cbbf2f9a99b47fc460d422812b6a5adff7dfee951d8fa2e4a98caa0382cfbdbf" 1618 ], 1619 "RepoTags" : [ 1620 "example:1.0", 1621 "example:latest", 1622 "example:stable" 1623 ], 1624 "Config" : { 1625 "Image" : "91e54dfb11794fad694460162bf0cb0a4fa710cfa3f60979c177d920813e267c", 1626 "NetworkDisabled" : false, 1627 "OnBuild" : [], 1628 "StdinOnce" : false, 1629 "PublishService" : "", 1630 "AttachStdin" : false, 1631 "OpenStdin" : false, 1632 "Domainname" : "", 1633 "AttachStdout" : false, 1634 "Tty" : false, 1635 "Hostname" : "e611e15f9c9d", 1636 "Volumes" : null, 1637 "Cmd" : [ 1638 "/bin/bash" 1639 ], 1640 "ExposedPorts" : null, 1641 "Env" : [ 1642 "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" 1643 ], 1644 "Labels" : { 1645 "com.example.vendor" : "Acme", 1646 "com.example.version" : "1.0", 1647 "com.example.license" : "GPL" 1648 }, 1649 "Entrypoint" : null, 1650 "MacAddress" : "", 1651 "AttachStderr" : false, 1652 "WorkingDir" : "", 1653 "User" : "" 1654 } 1655 } 1656 1657 Status Codes: 1658 1659 - **200** – no error 1660 - **404** – no such image 1661 - **500** – server error 1662 1663 ### Get the history of an image 1664 1665 `GET /images/(name)/history` 1666 1667 Return the history of the image `name` 1668 1669 **Example request**: 1670 1671 GET /images/ubuntu/history HTTP/1.1 1672 1673 **Example response**: 1674 1675 HTTP/1.1 200 OK 1676 Content-Type: application/json 1677 1678 [ 1679 { 1680 "Id": "3db9c44f45209632d6050b35958829c3a2aa256d81b9a7be45b362ff85c54710", 1681 "Created": 1398108230, 1682 "CreatedBy": "/bin/sh -c #(nop) ADD file:eb15dbd63394e063b805a3c32ca7bf0266ef64676d5a6fab4801f2e81e2a5148 in /", 1683 "Tags": [ 1684 "ubuntu:lucid", 1685 "ubuntu:10.04" 1686 ], 1687 "Size": 182964289, 1688 "Comment": "" 1689 }, 1690 { 1691 "Id": "6cfa4d1f33fb861d4d114f43b25abd0ac737509268065cdfd69d544a59c85ab8", 1692 "Created": 1398108222, 1693 "CreatedBy": "/bin/sh -c #(nop) MAINTAINER Tianon Gravi <admwiggin@gmail.com> - mkimage-debootstrap.sh -i iproute,iputils-ping,ubuntu-minimal -t lucid.tar.xz lucid http://archive.ubuntu.com/ubuntu/", 1694 "Tags": null, 1695 "Size": 0, 1696 "Comment": "" 1697 }, 1698 { 1699 "Id": "511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158", 1700 "Created": 1371157430, 1701 "CreatedBy": "", 1702 "Tags": [ 1703 "scratch12:latest", 1704 "scratch:latest" 1705 ], 1706 "Size": 0, 1707 "Comment": "Imported from -" 1708 } 1709 ] 1710 1711 Status Codes: 1712 1713 - **200** – no error 1714 - **404** – no such image 1715 - **500** – server error 1716 1717 ### Push an image on the registry 1718 1719 `POST /images/(name)/push` 1720 1721 Push the image `name` on the registry 1722 1723 **Example request**: 1724 1725 POST /images/test/push HTTP/1.1 1726 1727 **Example response**: 1728 1729 HTTP/1.1 200 OK 1730 Content-Type: application/json 1731 1732 {"status": "Pushing..."} 1733 {"status": "Pushing", "progress": "1/? (n/a)", "progressDetail": {"current": 1}}} 1734 {"error": "Invalid..."} 1735 ... 1736 1737 If you wish to push an image on to a private registry, that image must already have a tag 1738 into a repository which references that registry `hostname` and `port`. This repository name should 1739 then be used in the URL. This duplicates the command line's flow. 1740 1741 **Example request**: 1742 1743 POST /images/registry.acme.com:5000/test/push HTTP/1.1 1744 1745 1746 Query Parameters: 1747 1748 - **tag** – The tag to associate with the image on the registry. This is optional. 1749 1750 Request Headers: 1751 1752 - **X-Registry-Auth** – Include a base64-encoded AuthConfig. 1753 object. 1754 1755 Status Codes: 1756 1757 - **200** – no error 1758 - **404** – no such image 1759 - **500** – server error 1760 1761 ### Tag an image into a repository 1762 1763 `POST /images/(name)/tag` 1764 1765 Tag the image `name` into a repository 1766 1767 **Example request**: 1768 1769 POST /images/test/tag?repo=myrepo&force=0&tag=v42 HTTP/1.1 1770 1771 **Example response**: 1772 1773 HTTP/1.1 201 Created 1774 1775 Query Parameters: 1776 1777 - **repo** – The repository to tag in 1778 - **force** – 1/True/true or 0/False/false, default false 1779 - **tag** - The new tag name 1780 1781 Status Codes: 1782 1783 - **201** – no error 1784 - **400** – bad parameter 1785 - **404** – no such image 1786 - **409** – conflict 1787 - **500** – server error 1788 1789 ### Remove an image 1790 1791 `DELETE /images/(name)` 1792 1793 Remove the image `name` from the filesystem 1794 1795 **Example request**: 1796 1797 DELETE /images/test HTTP/1.1 1798 1799 **Example response**: 1800 1801 HTTP/1.1 200 OK 1802 Content-type: application/json 1803 1804 [ 1805 {"Untagged": "3e2f21a89f"}, 1806 {"Deleted": "3e2f21a89f"}, 1807 {"Deleted": "53b4f83ac9"} 1808 ] 1809 1810 Query Parameters: 1811 1812 - **force** – 1/True/true or 0/False/false, default false 1813 - **noprune** – 1/True/true or 0/False/false, default false 1814 1815 Status Codes: 1816 1817 - **200** – no error 1818 - **404** – no such image 1819 - **409** – conflict 1820 - **500** – server error 1821 1822 ### Search images 1823 1824 `GET /images/search` 1825 1826 Search for an image on [Docker Hub](https://hub.docker.com). 1827 1828 > **Note**: 1829 > The response keys have changed from API v1.6 to reflect the JSON 1830 > sent by the registry server to the docker daemon's request. 1831 1832 **Example request**: 1833 1834 GET /images/search?term=sshd HTTP/1.1 1835 1836 **Example response**: 1837 1838 HTTP/1.1 200 OK 1839 Content-Type: application/json 1840 1841 [ 1842 { 1843 "description": "", 1844 "is_official": false, 1845 "is_automated": false, 1846 "name": "wma55/u1210sshd", 1847 "star_count": 0 1848 }, 1849 { 1850 "description": "", 1851 "is_official": false, 1852 "is_automated": false, 1853 "name": "jdswinbank/sshd", 1854 "star_count": 0 1855 }, 1856 { 1857 "description": "", 1858 "is_official": false, 1859 "is_automated": false, 1860 "name": "vgauthier/sshd", 1861 "star_count": 0 1862 } 1863 ... 1864 ] 1865 1866 Query Parameters: 1867 1868 - **term** – term to search 1869 1870 Status Codes: 1871 1872 - **200** – no error 1873 - **500** – server error 1874 1875 ## 2.3 Misc 1876 1877 ### Check auth configuration 1878 1879 `POST /auth` 1880 1881 Get the default username and email 1882 1883 **Example request**: 1884 1885 POST /auth HTTP/1.1 1886 Content-Type: application/json 1887 1888 { 1889 "username":" hannibal", 1890 "password: "xxxx", 1891 "email": "hannibal@a-team.com", 1892 "serveraddress": "https://index.docker.io/v1/" 1893 } 1894 1895 **Example response**: 1896 1897 HTTP/1.1 200 OK 1898 1899 Status Codes: 1900 1901 - **200** – no error 1902 - **204** – no error 1903 - **500** – server error 1904 1905 ### Display system-wide information 1906 1907 `GET /info` 1908 1909 Display system-wide information 1910 1911 **Example request**: 1912 1913 GET /info HTTP/1.1 1914 1915 **Example response**: 1916 1917 HTTP/1.1 200 OK 1918 Content-Type: application/json 1919 1920 { 1921 "ClusterStore": "etcd://localhost:2379", 1922 "Containers": 11, 1923 "CpuCfsPeriod": true, 1924 "CpuCfsQuota": true, 1925 "Debug": false, 1926 "DockerRootDir": "/var/lib/docker", 1927 "Driver": "btrfs", 1928 "DriverStatus": [[""]], 1929 "ExecutionDriver": "native-0.1", 1930 "ExperimentalBuild": false, 1931 "HttpProxy": "http://test:test@localhost:8080", 1932 "HttpsProxy": "https://test:test@localhost:8080", 1933 "ID": "7TRN:IPZB:QYBB:VPBQ:UMPP:KARE:6ZNR:XE6T:7EWV:PKF4:ZOJD:TPYS", 1934 "IPv4Forwarding": true, 1935 "Images": 16, 1936 "IndexServerAddress": "https://index.docker.io/v1/", 1937 "InitPath": "/usr/bin/docker", 1938 "InitSha1": "", 1939 "KernelVersion": "3.12.0-1-amd64", 1940 "Labels": [ 1941 "storage=ssd" 1942 ], 1943 "MemTotal": 2099236864, 1944 "MemoryLimit": true, 1945 "NCPU": 1, 1946 "NEventsListener": 0, 1947 "NFd": 11, 1948 "NGoroutines": 21, 1949 "Name": "prod-server-42", 1950 "NoProxy": "9.81.1.160", 1951 "OomKillDisable": true, 1952 "OperatingSystem": "Boot2Docker", 1953 "RegistryConfig": { 1954 "IndexConfigs": { 1955 "docker.io": { 1956 "Mirrors": null, 1957 "Name": "docker.io", 1958 "Official": true, 1959 "Secure": true 1960 } 1961 }, 1962 "InsecureRegistryCIDRs": [ 1963 "127.0.0.0/8" 1964 ] 1965 }, 1966 "ServerVersion": "1.9.0", 1967 "SwapLimit": false, 1968 "SystemTime": "2015-03-10T11:11:23.730591467-07:00" 1969 } 1970 1971 Status Codes: 1972 1973 - **200** – no error 1974 - **500** – server error 1975 1976 ### Show the docker version information 1977 1978 `GET /version` 1979 1980 Show the docker version information 1981 1982 **Example request**: 1983 1984 GET /version HTTP/1.1 1985 1986 **Example response**: 1987 1988 HTTP/1.1 200 OK 1989 Content-Type: application/json 1990 1991 { 1992 "Version": "1.5.0", 1993 "Os": "linux", 1994 "KernelVersion": "3.18.5-tinycore64", 1995 "GoVersion": "go1.4.1", 1996 "GitCommit": "a8a31ef", 1997 "Arch": "amd64", 1998 "ApiVersion": "1.20", 1999 "Experimental": false 2000 } 2001 2002 Status Codes: 2003 2004 - **200** – no error 2005 - **500** – server error 2006 2007 ### Ping the docker server 2008 2009 `GET /_ping` 2010 2011 Ping the docker server 2012 2013 **Example request**: 2014 2015 GET /_ping HTTP/1.1 2016 2017 **Example response**: 2018 2019 HTTP/1.1 200 OK 2020 Content-Type: text/plain 2021 2022 OK 2023 2024 Status Codes: 2025 2026 - **200** - no error 2027 - **500** - server error 2028 2029 ### Create a new image from a container's changes 2030 2031 `POST /commit` 2032 2033 Create a new image from a container's changes 2034 2035 **Example request**: 2036 2037 POST /commit?container=44c004db4b17&comment=message&repo=myrepo HTTP/1.1 2038 Content-Type: application/json 2039 2040 { 2041 "Hostname": "", 2042 "Domainname": "", 2043 "User": "", 2044 "AttachStdin": false, 2045 "AttachStdout": true, 2046 "AttachStderr": true, 2047 "Tty": false, 2048 "OpenStdin": false, 2049 "StdinOnce": false, 2050 "Env": null, 2051 "Cmd": [ 2052 "date" 2053 ], 2054 "Mounts": [ 2055 { 2056 "Source": "/data", 2057 "Destination": "/data", 2058 "Mode": "ro,Z", 2059 "RW": false 2060 } 2061 ], 2062 "Labels": { 2063 "key1": "value1", 2064 "key2": "value2" 2065 }, 2066 "WorkingDir": "", 2067 "NetworkDisabled": false, 2068 "ExposedPorts": { 2069 "22/tcp": {} 2070 } 2071 } 2072 2073 **Example response**: 2074 2075 HTTP/1.1 201 Created 2076 Content-Type: application/json 2077 2078 {"Id": "596069db4bf5"} 2079 2080 Json Parameters: 2081 2082 - **config** - the container's configuration 2083 2084 Query Parameters: 2085 2086 - **container** – source container 2087 - **repo** – repository 2088 - **tag** – tag 2089 - **comment** – commit message 2090 - **author** – author (e.g., "John Hannibal Smith 2091 <[hannibal@a-team.com](mailto:hannibal%40a-team.com)>") 2092 - **pause** – 1/True/true or 0/False/false, whether to pause the container before committing 2093 - **changes** – Dockerfile instructions to apply while committing 2094 2095 Status Codes: 2096 2097 - **201** – no error 2098 - **404** – no such container 2099 - **500** – server error 2100 2101 ### Monitor Docker's events 2102 2103 `GET /events` 2104 2105 Get container events from docker, either in real time via streaming, or via 2106 polling (using since). 2107 2108 Docker containers report the following events: 2109 2110 attach, commit, copy, create, destroy, die, exec_create, exec_start, export, kill, oom, pause, rename, resize, restart, start, stop, top, unpause 2111 2112 and Docker images report: 2113 2114 delete, import, pull, push, tag, untag 2115 2116 **Example request**: 2117 2118 GET /events?since=1374067924 2119 2120 **Example response**: 2121 2122 HTTP/1.1 200 OK 2123 Content-Type: application/json 2124 2125 {"status":"pull","id":"busybox:latest","time":1442421700,"timeNano":1442421700598988358} 2126 {"status":"create","id":"5745704abe9caa5","from":"busybox","time":1442421716,"timeNano":1442421716853979870} 2127 {"status":"attach","id":"5745704abe9caa5","from":"busybox","time":1442421716,"timeNano":1442421716894759198} 2128 {"status":"start","id":"5745704abe9caa5","from":"busybox","time":1442421716,"timeNano":1442421716983607193} 2129 2130 Query Parameters: 2131 2132 - **since** – Timestamp used for polling 2133 - **until** – Timestamp used for polling 2134 - **filters** – A json encoded value of the filters (a map[string][]string) to process on the event list. Available filters: 2135 - `container=<string>`; -- container to filter 2136 - `event=<string>`; -- event to filter 2137 - `image=<string>`; -- image to filter 2138 - `label=<string>`; -- image and container label to filter 2139 2140 Status Codes: 2141 2142 - **200** – no error 2143 - **500** – server error 2144 2145 ### Get a tarball containing all images in a repository 2146 2147 `GET /images/(name)/get` 2148 2149 Get a tarball containing all images and metadata for the repository specified 2150 by `name`. 2151 2152 If `name` is a specific name and tag (e.g. ubuntu:latest), then only that image 2153 (and its parents) are returned. If `name` is an image ID, similarly only that 2154 image (and its parents) are returned, but with the exclusion of the 2155 'repositories' file in the tarball, as there were no image names referenced. 2156 2157 See the [image tarball format](#image-tarball-format) for more details. 2158 2159 **Example request** 2160 2161 GET /images/ubuntu/get 2162 2163 **Example response**: 2164 2165 HTTP/1.1 200 OK 2166 Content-Type: application/x-tar 2167 2168 Binary data stream 2169 2170 Status Codes: 2171 2172 - **200** – no error 2173 - **500** – server error 2174 2175 ### Get a tarball containing all images. 2176 2177 `GET /images/get` 2178 2179 Get a tarball containing all images and metadata for one or more repositories. 2180 2181 For each value of the `names` parameter: if it is a specific name and tag (e.g. 2182 `ubuntu:latest`), then only that image (and its parents) are returned; if it is 2183 an image ID, similarly only that image (and its parents) are returned and there 2184 would be no names referenced in the 'repositories' file for this image ID. 2185 2186 See the [image tarball format](#image-tarball-format) for more details. 2187 2188 **Example request** 2189 2190 GET /images/get?names=myname%2Fmyapp%3Alatest&names=busybox 2191 2192 **Example response**: 2193 2194 HTTP/1.1 200 OK 2195 Content-Type: application/x-tar 2196 2197 Binary data stream 2198 2199 Status Codes: 2200 2201 - **200** – no error 2202 - **500** – server error 2203 2204 ### Load a tarball with a set of images and tags into docker 2205 2206 `POST /images/load` 2207 2208 Load a set of images and tags into a Docker repository. 2209 See the [image tarball format](#image-tarball-format) for more details. 2210 2211 **Example request** 2212 2213 POST /images/load 2214 2215 Tarball in body 2216 2217 **Example response**: 2218 2219 HTTP/1.1 200 OK 2220 2221 Status Codes: 2222 2223 - **200** – no error 2224 - **500** – server error 2225 2226 ### Image tarball format 2227 2228 An image tarball contains one directory per image layer (named using its long ID), 2229 each containing these files: 2230 2231 - `VERSION`: currently `1.0` - the file format version 2232 - `json`: detailed layer information, similar to `docker inspect layer_id` 2233 - `layer.tar`: A tarfile containing the filesystem changes in this layer 2234 2235 The `layer.tar` file contains `aufs` style `.wh..wh.aufs` files and directories 2236 for storing attribute changes and deletions. 2237 2238 If the tarball defines a repository, the tarball should also include a `repositories` file at 2239 the root that contains a list of repository and tag names mapped to layer IDs. 2240 2241 ``` 2242 {"hello-world": 2243 {"latest": "565a9d68a73f6706862bfe8409a7f659776d4d60a8d096eb4a3cbce6999cc2a1"} 2244 } 2245 ``` 2246 2247 ### Exec Create 2248 2249 `POST /containers/(id or name)/exec` 2250 2251 Sets up an exec instance in a running container `id` 2252 2253 **Example request**: 2254 2255 POST /containers/e90e34656806/exec HTTP/1.1 2256 Content-Type: application/json 2257 2258 { 2259 "AttachStdin": false, 2260 "AttachStdout": true, 2261 "AttachStderr": true, 2262 "Tty": false, 2263 "Cmd": [ 2264 "date" 2265 ] 2266 } 2267 2268 **Example response**: 2269 2270 HTTP/1.1 201 Created 2271 Content-Type: application/json 2272 2273 { 2274 "Id": "f90e34656806", 2275 "Warnings":[] 2276 } 2277 2278 Json Parameters: 2279 2280 - **AttachStdin** - Boolean value, attaches to `stdin` of the `exec` command. 2281 - **AttachStdout** - Boolean value, attaches to `stdout` of the `exec` command. 2282 - **AttachStderr** - Boolean value, attaches to `stderr` of the `exec` command. 2283 - **Tty** - Boolean value to allocate a pseudo-TTY. 2284 - **Cmd** - Command to run specified as a string or an array of strings. 2285 2286 2287 Status Codes: 2288 2289 - **201** – no error 2290 - **404** – no such container 2291 - **409** - container is paused 2292 - **500** - server error 2293 2294 ### Exec Start 2295 2296 `POST /exec/(id)/start` 2297 2298 Starts a previously set up `exec` instance `id`. If `detach` is true, this API 2299 returns after starting the `exec` command. Otherwise, this API sets up an 2300 interactive session with the `exec` command. 2301 2302 **Example request**: 2303 2304 POST /exec/e90e34656806/start HTTP/1.1 2305 Content-Type: application/json 2306 2307 { 2308 "Detach": false, 2309 "Tty": false 2310 } 2311 2312 **Example response**: 2313 2314 HTTP/1.1 200 OK 2315 Content-Type: application/vnd.docker.raw-stream 2316 2317 {{ STREAM }} 2318 2319 Json Parameters: 2320 2321 - **Detach** - Detach from the `exec` command. 2322 - **Tty** - Boolean value to allocate a pseudo-TTY. 2323 2324 Status Codes: 2325 2326 - **200** – no error 2327 - **404** – no such exec instance 2328 - **409** - container is paused 2329 2330 **Stream details**: 2331 Similar to the stream behavior of `POST /containers/(id or name)/attach` API 2332 2333 ### Exec Resize 2334 2335 `POST /exec/(id)/resize` 2336 2337 Resizes the `tty` session used by the `exec` command `id`. The unit is number of characters. 2338 This API is valid only if `tty` was specified as part of creating and starting the `exec` command. 2339 2340 **Example request**: 2341 2342 POST /exec/e90e34656806/resize?h=40&w=80 HTTP/1.1 2343 Content-Type: text/plain 2344 2345 **Example response**: 2346 2347 HTTP/1.1 201 Created 2348 Content-Type: text/plain 2349 2350 Query Parameters: 2351 2352 - **h** – height of `tty` session 2353 - **w** – width 2354 2355 Status Codes: 2356 2357 - **201** – no error 2358 - **404** – no such exec instance 2359 2360 ### Exec Inspect 2361 2362 `GET /exec/(id)/json` 2363 2364 Return low-level information about the `exec` command `id`. 2365 2366 **Example request**: 2367 2368 GET /exec/11fb006128e8ceb3942e7c58d77750f24210e35f879dd204ac975c184b820b39/json HTTP/1.1 2369 2370 **Example response**: 2371 2372 HTTP/1.1 200 OK 2373 Content-Type: plain/text 2374 2375 { 2376 "ID" : "11fb006128e8ceb3942e7c58d77750f24210e35f879dd204ac975c184b820b39", 2377 "Running" : false, 2378 "ExitCode" : 2, 2379 "ProcessConfig" : { 2380 "privileged" : false, 2381 "user" : "", 2382 "tty" : false, 2383 "entrypoint" : "sh", 2384 "arguments" : [ 2385 "-c", 2386 "exit 2" 2387 ] 2388 }, 2389 "OpenStdin" : false, 2390 "OpenStderr" : false, 2391 "OpenStdout" : false, 2392 "Container" : { 2393 "State" : { 2394 "Status" : "running", 2395 "Running" : true, 2396 "Paused" : false, 2397 "Restarting" : false, 2398 "OOMKilled" : false, 2399 "Pid" : 3650, 2400 "ExitCode" : 0, 2401 "Error" : "", 2402 "StartedAt" : "2014-11-17T22:26:03.717657531Z", 2403 "FinishedAt" : "0001-01-01T00:00:00Z" 2404 }, 2405 "ID" : "8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c", 2406 "Created" : "2014-11-17T22:26:03.626304998Z", 2407 "Path" : "date", 2408 "Args" : [], 2409 "Config" : { 2410 "Hostname" : "8f177a186b97", 2411 "Domainname" : "", 2412 "User" : "", 2413 "AttachStdin" : false, 2414 "AttachStdout" : false, 2415 "AttachStderr" : false, 2416 "ExposedPorts" : null, 2417 "Tty" : false, 2418 "OpenStdin" : false, 2419 "StdinOnce" : false, 2420 "Env" : [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" ], 2421 "Cmd" : [ 2422 "date" 2423 ], 2424 "Image" : "ubuntu", 2425 "Volumes" : null, 2426 "WorkingDir" : "", 2427 "Entrypoint" : null, 2428 "NetworkDisabled" : false, 2429 "MacAddress" : "", 2430 "OnBuild" : null, 2431 "SecurityOpt" : null 2432 }, 2433 "Image" : "5506de2b643be1e6febbf3b8a240760c6843244c41e12aa2f60ccbb7153d17f5", 2434 "NetworkSettings": { 2435 "Bridge": "", 2436 "SandboxID": "", 2437 "HairpinMode": false, 2438 "LinkLocalIPv6Address": "", 2439 "LinkLocalIPv6PrefixLen": 0, 2440 "Ports": null, 2441 "SandboxKey": "", 2442 "SecondaryIPAddresses": null, 2443 "SecondaryIPv6Addresses": null, 2444 "EndpointID": "", 2445 "Gateway": "", 2446 "GlobalIPv6Address": "", 2447 "GlobalIPv6PrefixLen": 0, 2448 "IPAddress": "", 2449 "IPPrefixLen": 0, 2450 "IPv6Gateway": "", 2451 "MacAddress": "", 2452 "Networks": { 2453 "bridge": { 2454 "EndpointID": "", 2455 "Gateway": "", 2456 "IPAddress": "", 2457 "IPPrefixLen": 0, 2458 "IPv6Gateway": "", 2459 "GlobalIPv6Address": "", 2460 "GlobalIPv6PrefixLen": 0, 2461 "MacAddress": "" 2462 } 2463 } 2464 }, 2465 "ResolvConfPath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/resolv.conf", 2466 "HostnamePath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/hostname", 2467 "HostsPath" : "/var/lib/docker/containers/8f177a186b977fb451136e0fdf182abff5599a08b3c7f6ef0d36a55aaf89634c/hosts", 2468 "LogPath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b-json.log", 2469 "Name" : "/test", 2470 "Driver" : "aufs", 2471 "ExecDriver" : "native-0.2", 2472 "MountLabel" : "", 2473 "ProcessLabel" : "", 2474 "AppArmorProfile" : "", 2475 "RestartCount" : 0, 2476 "Mounts" : [] 2477 } 2478 } 2479 2480 Status Codes: 2481 2482 - **200** – no error 2483 - **404** – no such exec instance 2484 - **500** - server error 2485 2486 ## 2.4 Volumes 2487 2488 ### List volumes 2489 2490 `GET /volumes` 2491 2492 **Example request**: 2493 2494 GET /volumes HTTP/1.1 2495 2496 **Example response**: 2497 2498 HTTP/1.1 200 OK 2499 Content-Type: application/json 2500 2501 { 2502 "Volumes": [ 2503 { 2504 "Name": "tardis", 2505 "Driver": "local", 2506 "Mountpoint": "/var/lib/docker/volumes/tardis" 2507 } 2508 ] 2509 } 2510 2511 Query Parameters: 2512 2513 - **filters** - JSON encoded value of the filters (a `map[string][]string`) to process on the volumes list. There is one available filter: `dangling=true` 2514 2515 Status Codes: 2516 2517 - **200** - no error 2518 - **500** - server error 2519 2520 ### Create a volume 2521 2522 `POST /volumes/create` 2523 2524 Create a volume 2525 2526 **Example request**: 2527 2528 POST /volumes/create HTTP/1.1 2529 Content-Type: application/json 2530 2531 { 2532 "Name": "tardis" 2533 } 2534 2535 **Example response**: 2536 2537 HTTP/1.1 201 Created 2538 Content-Type: application/json 2539 2540 { 2541 "Name": "tardis", 2542 "Driver": "local", 2543 "Mountpoint": "/var/lib/docker/volumes/tardis" 2544 } 2545 2546 Status Codes: 2547 2548 - **201** - no error 2549 - **500** - server error 2550 2551 JSON Parameters: 2552 2553 - **Name** - The new volume's name. If not specified, Docker generates a name. 2554 - **Driver** - Name of the volume driver to use. Defaults to `local` for the name. 2555 - **DriverOpts** - A mapping of driver options and values. These options are 2556 passed directly to the driver and are driver specific. 2557 2558 ### Inspect a volume 2559 2560 `GET /volumes/(name)` 2561 2562 Return low-level information on the volume `name` 2563 2564 **Example request**: 2565 2566 GET /volumes/tardis 2567 2568 **Example response**: 2569 2570 HTTP/1.1 200 OK 2571 Content-Type: application/json 2572 2573 { 2574 "Name": "tardis", 2575 "Driver": "local", 2576 "Mountpoint": "/var/lib/docker/volumes/tardis" 2577 } 2578 2579 Status Codes: 2580 2581 - **200** - no error 2582 - **404** - no such volume 2583 - **500** - server error 2584 2585 ### Remove a volume 2586 2587 `DELETE /volumes/(name)` 2588 2589 Instruct the driver to remove the volume (`name`). 2590 2591 **Example request**: 2592 2593 DELETE /volumes/tardis HTTP/1.1 2594 2595 **Example response**: 2596 2597 HTTP/1.1 204 No Content 2598 2599 Status Codes 2600 2601 - **204** - no error 2602 - **404** - no such volume or volume driver 2603 - **409** - volume is in use and cannot be removed 2604 - **500** - server error 2605 2606 ## 2.5 Networks 2607 2608 ### List networks 2609 2610 `GET /networks` 2611 2612 **Example request**: 2613 2614 GET /networks HTTP/1.1 2615 2616 **Example response**: 2617 2618 ``` 2619 HTTP/1.1 200 OK 2620 Content-Type: application/json 2621 2622 [ 2623 { 2624 "Name": "bridge", 2625 "Id": "f2de39df4171b0dc801e8002d1d999b77256983dfc63041c0f34030aa3977566", 2626 "Scope": "local", 2627 "Driver": "bridge", 2628 "IPAM": { 2629 "Driver": "default", 2630 "Config": [ 2631 { 2632 "Subnet": "172.17.0.0/16" 2633 } 2634 ] 2635 }, 2636 "Containers": { 2637 "39b69226f9d79f5634485fb236a23b2fe4e96a0a94128390a7fbbcc167065867": { 2638 "EndpointID": "ed2419a97c1d9954d05b46e462e7002ea552f216e9b136b80a7db8d98b442eda", 2639 "MacAddress": "02:42:ac:11:00:02", 2640 "IPv4Address": "172.17.0.2/16", 2641 "IPv6Address": "" 2642 } 2643 }, 2644 "Options": { 2645 "com.docker.network.bridge.default_bridge": "true", 2646 "com.docker.network.bridge.enable_icc": "true", 2647 "com.docker.network.bridge.enable_ip_masquerade": "true", 2648 "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0", 2649 "com.docker.network.bridge.name": "docker0", 2650 "com.docker.network.driver.mtu": "1500" 2651 } 2652 }, 2653 { 2654 "Name": "none", 2655 "Id": "e086a3893b05ab69242d3c44e49483a3bbbd3a26b46baa8f61ab797c1088d794", 2656 "Scope": "local", 2657 "Driver": "null", 2658 "IPAM": { 2659 "Driver": "default", 2660 "Config": [] 2661 }, 2662 "Containers": {}, 2663 "Options": {} 2664 }, 2665 { 2666 "Name": "host", 2667 "Id": "13e871235c677f196c4e1ecebb9dc733b9b2d2ab589e30c539efeda84a24215e", 2668 "Scope": "local", 2669 "Driver": "host", 2670 "IPAM": { 2671 "Driver": "default", 2672 "Config": [] 2673 }, 2674 "Containers": {}, 2675 "Options": {} 2676 } 2677 ] 2678 ``` 2679 2680 2681 2682 Query Parameters: 2683 2684 - **filters** - JSON encoded value of the filters (a `map[string][]string`) to process on the networks list. Available filters: `name=[network-names]` , `id=[network-ids]` 2685 2686 Status Codes: 2687 2688 - **200** - no error 2689 - **500** - server error 2690 2691 ### Inspect network 2692 2693 `GET /networks/<network-id>` 2694 2695 **Example request**: 2696 2697 GET /networks/f2de39df4171b0dc801e8002d1d999b77256983dfc63041c0f34030aa3977566 HTTP/1.1 2698 2699 **Example response**: 2700 2701 ``` 2702 HTTP/1.1 200 OK 2703 Content-Type: application/json 2704 2705 { 2706 "Name": "bridge", 2707 "Id": "f2de39df4171b0dc801e8002d1d999b77256983dfc63041c0f34030aa3977566", 2708 "Scope": "local", 2709 "Driver": "bridge", 2710 "IPAM": { 2711 "Driver": "default", 2712 "Config": [ 2713 { 2714 "Subnet": "172.17.0.0/16" 2715 } 2716 ] 2717 }, 2718 "Containers": { 2719 "39b69226f9d79f5634485fb236a23b2fe4e96a0a94128390a7fbbcc167065867": { 2720 "EndpointID": "ed2419a97c1d9954d05b46e462e7002ea552f216e9b136b80a7db8d98b442eda", 2721 "MacAddress": "02:42:ac:11:00:02", 2722 "IPv4Address": "172.17.0.2/16", 2723 "IPv6Address": "" 2724 } 2725 }, 2726 "Options": { 2727 "com.docker.network.bridge.default_bridge": "true", 2728 "com.docker.network.bridge.enable_icc": "true", 2729 "com.docker.network.bridge.enable_ip_masquerade": "true", 2730 "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0", 2731 "com.docker.network.bridge.name": "docker0", 2732 "com.docker.network.driver.mtu": "1500" 2733 } 2734 } 2735 ``` 2736 2737 Status Codes: 2738 2739 - **200** - no error 2740 - **404** - network not found 2741 2742 ### Create a network 2743 2744 `POST /networks/create` 2745 2746 Create a network 2747 2748 **Example request**: 2749 2750 ``` 2751 POST /networks/create HTTP/1.1 2752 Content-Type: application/json 2753 2754 { 2755 "Name":"isolated_nw", 2756 "Driver":"bridge" 2757 "IPAM":{ 2758 "Config":[{ 2759 "Subnet":"172.20.0.0/16", 2760 "IPRange":"172.20.10.0/24", 2761 "Gateway":"172.20.10.11" 2762 }] 2763 } 2764 ``` 2765 2766 **Example response**: 2767 2768 ``` 2769 HTTP/1.1 201 Created 2770 Content-Type: application/json 2771 2772 { 2773 "Id": "22be93d5babb089c5aab8dbc369042fad48ff791584ca2da2100db837a1c7c30", 2774 "Warning": "" 2775 } 2776 ``` 2777 2778 Status Codes: 2779 2780 - **201** - no error 2781 - **404** - plugin not found 2782 - **500** - server error 2783 2784 JSON Parameters: 2785 2786 - **Name** - The new network's name. this is a mandatory field 2787 - **Driver** - Name of the network driver plugin to use. Defaults to `bridge` driver 2788 - **IPAM** - Optional custom IP scheme for the network 2789 - **Options** - Network specific options to be used by the drivers 2790 - **CheckDuplicate** - Requests daemon to check for networks with same name 2791 2792 ### Connect a container to a network 2793 2794 `POST /networks/(id)/connect` 2795 2796 Connect a container to a network 2797 2798 **Example request**: 2799 2800 ``` 2801 POST /networks/22be93d5babb089c5aab8dbc369042fad48ff791584ca2da2100db837a1c7c30/connect HTTP/1.1 2802 Content-Type: application/json 2803 2804 { 2805 "Container":"3613f73ba0e4" 2806 } 2807 ``` 2808 2809 **Example response**: 2810 2811 HTTP/1.1 200 OK 2812 2813 Status Codes: 2814 2815 - **200** - no error 2816 - **404** - network or container is not found 2817 - **500** - Internal Server Error 2818 2819 JSON Parameters: 2820 2821 - **container** - container-id/name to be connected to the network 2822 2823 ### Disconnect a container from a network 2824 2825 `POST /networks/(id)/disconnect` 2826 2827 Disconnect a container from a network 2828 2829 **Example request**: 2830 2831 ``` 2832 POST /networks/22be93d5babb089c5aab8dbc369042fad48ff791584ca2da2100db837a1c7c30/disconnect HTTP/1.1 2833 Content-Type: application/json 2834 2835 { 2836 "Container":"3613f73ba0e4" 2837 } 2838 ``` 2839 2840 **Example response**: 2841 2842 HTTP/1.1 200 OK 2843 2844 Status Codes: 2845 2846 - **200** - no error 2847 - **404** - network or container not found 2848 - **500** - Internal Server Error 2849 2850 JSON Parameters: 2851 2852 - **Container** - container-id/name to be disconnected from a network 2853 2854 ### Remove a network 2855 2856 `DELETE /networks/(id)` 2857 2858 Instruct the driver to remove the network (`id`). 2859 2860 **Example request**: 2861 2862 DELETE /networks/22be93d5babb089c5aab8dbc369042fad48ff791584ca2da2100db837a1c7c30 HTTP/1.1 2863 2864 **Example response**: 2865 2866 HTTP/1.1 200 OK 2867 2868 Status Codes 2869 2870 - **200** - no error 2871 - **404** - no such network 2872 - **500** - server error 2873 2874 # 3. Going further 2875 2876 ## 3.1 Inside `docker run` 2877 2878 As an example, the `docker run` command line makes the following API calls: 2879 2880 - Create the container 2881 2882 - If the status code is 404, it means the image doesn't exist: 2883 - Try to pull it. 2884 - Then, retry to create the container. 2885 2886 - Start the container. 2887 2888 - If you are not in detached mode: 2889 - Attach to the container, using `logs=1` (to have `stdout` and 2890 `stderr` from the container's start) and `stream=1` 2891 2892 - If in detached mode or only `stdin` is attached, display the container's id. 2893 2894 ## 3.2 Hijacking 2895 2896 In this version of the API, `/attach`, uses hijacking to transport `stdin`, 2897 `stdout`, and `stderr` on the same socket. 2898 2899 To hint potential proxies about connection hijacking, Docker client sends 2900 connection upgrade headers similarly to websocket. 2901 2902 Upgrade: tcp 2903 Connection: Upgrade 2904 2905 When Docker daemon detects the `Upgrade` header, it switches its status code 2906 from **200 OK** to **101 UPGRADED** and resends the same headers. 2907 2908 2909 ## 3.3 CORS Requests 2910 2911 To set cross origin requests to the remote api please give values to 2912 `--api-cors-header` when running Docker in daemon mode. Set * (asterisk) allows all, 2913 default or blank means CORS disabled 2914 2915 $ docker daemon -H="192.168.1.9:2375" --api-cors-header="http://foo.bar"