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Chapter 35. Docker
Docker Component
Available as of Camel 2.15
Camel component for communicating with Docker.
The Docker Camel component leverages the docker-java via the Docker Remote API.
Maven users will need to add the following dependency to their
pom.xml for this component:
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-docker</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>URI format
docker://[operation]?[options]
Where operation is the specific action to perform on Docker.
Header Strategy
All URI option can be passed as Header properties. Values found in a message header take precedence over URI parameters. A header property takes the form of a URI option prefixed with *CamelDocker* as shown below
| URI Option | Header Property |
|---|---|
| containerId | CamelDockerContainerId |
General Options
The following parameters can be used with any invocation of the component
| Option | Header | Description | Default Value |
|---|---|---|---|
| host | CamelDockerHost | Mandatory: Docker host | localhost |
| port | CamelDockerPort | Mandatory:Docker port | 2375 |
| username | CamelDockerUserName | User name to authenticate with | |
| password | CamelDockerPassword | Password to authenticate with | |
| CamelDockerEmail | Email address associated with the user | ||
| secure | CamelDockerSecure | Use HTTPS communication | false |
| requestTimeout | CamelDockerRequestTimeout | Request timeout for response (in seconds) | 30 |
| certPath | CamelDockerCertPath | Location containing the SSL certificate chain |
Consumer Operations
The consumer supports the following operations.
| Operation | Options | Description | Produces |
|---|---|---|---|
| events | initialRange | Monitor Docker events (Streaming) | Event |
Producer Operations
The following producer operations are available.
| Misc Operation | Options | Description | Returns |
|---|---|---|---|
| auth | Check auth configuration | ||
| info | System wide information | Info | |
| ping | Ping the Docker server | ||
| version | Show the docker version information | Version |
| Image Operation | Options | Description | Body Content | Returns |
|---|---|---|---|---|
| image/list | filter, showAll | List images | List<Image> | |
| image/create | repository | Create an image | InputStream | CreateImageResponse |
| image/build | noCache, quiet, remove, tag | Build an image from Dockerfile via stdin | InputStream or File | InputStream |
| image/pull | repository, registry, tag | Pull an image from the registry | InputStream | |
| image/push | name | Push an image on the registry | InputStream | |
| image/search | term | Search for images | List<SearchItem> | |
| image/remove | imageId | Remove an image | ||
| image/tag | imageId, repository, tag, force | Tag an image into a repository | ||
| image/inspect | imageId | Inspect an image | InspectImageResponse |
| Container Operation | Options | Description | Body Content | Returns |
|---|---|---|---|---|
| container/list | showSize, showAll, before, since, limit, List containers | initialRange | List<Container> | |
| container/create | imageId, name, exposedPorts, workingDir, disableNetwork, hostname, user, tty, stdInOpen, stdInOnce, memoryLimit, memorySwap, cpuShares, attachStdIn, attachStdOut, attachStdErr, env, cmd, dns, image, volumes, volumesFrom | Create a container | CreateContainerResponse | |
| container/start |
containerId, binds, links, lxcConf, portBindings, privileged, publishAllPorts, dns, dnsSearch, volumesFrom, networkMode, devices, restartPolicy, capAdd, capDrop
|
Start a container | ||
| container/inspect | containerId | Inspect a container | InspectContainerResponse | |
| container/wait | containerId | Wait a container | Integer | |
| container/log | containerId, stdOut, stdErr, timestamps, followStream, tailAll, tail | Get container logs | InputStream | |
| container/attach | containerId, stdOut, stdErr, timestamps, logs, followStream | Attach to a container | InputStream | |
| container/stop | containerId, timeout | Stop a container | ||
| container/restart | containerId, timeout | Restart a container | ||
| container/diff | containerId | Inspect changes on a container | ChangeLog | |
| container/kill | containerId, signal | Kill a container | ||
| container/top | containerId, psArgs | List processes running in a container | TopContainerResponse | |
| container/pause | containerId | Pause a container | ||
| container/unpause | containerId | Unpause a container | ||
| container/commit | containerId, repository, message, tag, attachStdIn, attachStdOut, attachStdErr, cmd, disableNetwork, pause, env, exposedPorts, hostname, memory, memorySwap, openStdIn, portSpecs, stdInOnce, tty, user, volumes, hostname | Create a new image from a container's changes | String | |
| container/copyfile | containerId, resource, hostPath | Copy files or folders from a container | InputStream | |
| container/remove | containerId, force, removeVolumes | Remove a container |
Examples
The following example consumes events from Docker:
from("docker://events?host=192.168.59.103&port=2375").to("log:event");
The following example queries Docker for system wide information
from("docker://info?host=192.168.59.103&port=2375").to("log:info");