docker-compose-tool v0.0.1

docker-compose-tool for nodejs

Note: This is still a very early stage project

This is a simple library for controlling docker-compose from node. The goal is to eventually provide access to all the commands of docker-compose from within NodeJS.

This repo is based off the excellent node-flowtype-boilerplate.

Why

Controlling docker-compose from node allows for multi-container integration tests and automation of command line tasks from node.

Getting States

Quick Example

import { DockerCompose } from 'docker-compose'
// let DockerCompose = require('docker-compose').DockerCompose

let compose = new DockerCompose({
  composePath: './docker-compose.yml'
})

compose.up('hello_world_service').then(() => {
  compose.logs('hello_world_service', (message) => {
    console.log(`received ${message} from container stdout`)
  })
})

new DockerCompose(options)

Create a new DockerCompose instance. Each DockerCompose instance has a set of options associated with it that link it to a docker compose file or default options for output, container creation, etc.

type ServiceOptions = {
  // _required_ Path to the compose yaml file
  composePath: string,
  // _optional_ default is true. recreate containers "docker-compose up --force-recreate ..."
  forceRecreate: bool,
  // _optional_ default is false. Place timestamps in log output. "docker-compose logs -t ..."
  timeStamps: bool,
  // _optional_ directory to execute docker-compose in, default is the directory with the compose yaml file
  workingDirectory: string
}

compose.up(services: ?string|Array, options: ?ServiceOptions): Promise

Start one or more services. Equivalent to docker-compose up [services].

Promise resolves when up is complete, which is not necessarily when the container finishes (the -d flag is used by default, running up as a daemon. Use compose.logs to watch for the exit.

compose.down(services: ?string|Array, options: ?ServiceOptions): Promise

Down one or more services. Equivalent to docker-compose down [services].

Promise resolves when down is complete.

compose.kill(services: ?string|Array, options: ?ServiceOptions): Promise

Kill one or more services. Equivalent to docker-compose kill [services].

Promise resolves when kill is complete.

compose.logs(services: ?string|Array, onMessage:Function, options: ?ServiceOptions): Promise

Watch the logs on one or more services. Equivalent to docker-compose logs [services].

Promise resolves after spawning command (basically instantly).

onMessage will receive a string line from docker-compose logs. Each line will be returned individually.

Contributing

Contributions via pull requests are welcome. If you find a problem please file an issue.

Running Tests

Just run npm test or yarn test.