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dolphin

★ 42 Open GitHub ↗

A fast, lightweight an modular library to interact with docker daemons.

// repository documentation

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# Dolphin
![dolphin](https://d30y9cdsu7xlg0.cloudfront.net/png/29924-200.png)

A fast, lightweight an modular library to interact with docker daemons.

This module provides a thin layer to communicate with docker daemons in node.
The api is promise and events based trying to follow the semantics of
docker's remote api as closely as possible.

# Install

```npm install dolphin```

# Usage

## Instantiation

Before starting to interact with docker deamons you need to instantiate dolphin.
If you are using docker-machine, and the env vars are set by ```docker-machine env mymachine```,
then you can just instantiate it without args. If no env variables are set, it will use dockers
default Unix domain socket: ```unix:///var/run/docker.sock```.

```js
var dolphin = require('dolphin')();
```

You can also instantiate it with an explicit url pointing to the docker daemon:

```js
var Dolphin = require('dolphin');

var dolphin = Dolphin({
	url: 'http://mydockerhost.com: 1234'
})
```

### Version

You can ask dolphin for the docker engine version installed:

```js
dolphin.version().then(function(version){
	...
})
```

Or some system wide information:
```js
dolphin.info().then(function(info){
	...
})
```

## Images

## Containers

You can get a list of all the containers running on the system using the container method:

```js
dolphin.containers().then(function(containers){
	// Containers contains an array of docker containers.
	// https://docs.docker.com/engine/reference/api/docker_remote_api_v1.24/#list-containers
})

// Query parameters are also supported, so that you can get a subset of the containers
dolphin.containers({
	all: {Boolean},	// Show all containers even stopped ones.
	limit: {Integer},
	since: {Integer}, // Show containers created since given timestamp
	before: {Integer}, // Show containers created before given timestamp
	size: {Boolean},
	filters: {Object}, // Eg. {"exited":0, "status":["restarting","running","paused","exited"]}
}).then(function(containers){

})
```

### Container methods

There are several useful methods for querying containers:

```js
dolphin.containers.inspect(containerId).then(function(info){
	// Container info
})
```

```js
dolphin.containers.logs(containerId).then(function(logs){
	// Container logs
})
```

```js
dolphin.containers.changes(containerId).then(function(changes){
	// Container changes
})
```

```js
dolphin.containers.export(containerId).then(function(export){
	// Container info
})
```

```js
dolphin.containers.stats(containerId).then(function(stats){
	// Container stats
})
```

## Events

A very powerful featue in dolphin is the ability to listen to events
generated by docker deamons.

It can show live or old events, depending on the options used:

```js
dolphin.events({
	since: Date.now() / 1000,
	until: Date.now() / 1000
}).on('event', function(evt){
	console.log(evt);
}).on('error', function(err){
	console.log('Error:', err);
});
```

See which events are produced by docker here: https://docs.docker.com/engine/reference/api/docker_remote_api_v1.24/#/monitor-docker-s-events

## Volumes

## Networks

## Nodes

## Services

dolphin

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