Nikita

Nikita

Automation and deployment solution

Built for Node.js, MIT License

Deploy apps and infrastructures

Main library features

Consistent Usage

All the functions share the same API, accepting configuration in a flexible manner validated by a schema. Once you learn the core usage, you only learn the configuration of the actions you wish to execute.

Everything is a file

No agent to install, no database to depends on. Your project is just another Node.js package easily versioned in Git and any SCM, easily integrated with your CI and CD DevOps tools.

Idempotence

Call a function multiple times and expect the same result. You’ll be informed of any modifications and can retrieve detailed information.

Documentation

Learn fast. Source code is self-documented with the most common usages enriched by many examples. Don’t forget to look at the tests as well.

Flexibility

Deliberately sacrificing speed for a maximum of strength, ease of use, and flexibility. The simple API built on a plugin architecture allows us to constantly add new functionality without affecting the API.

Composition

Built from small and reusable actions imbricated into a complex system. It follows the Unix philosophy of building small single-building blocks with a clear API.

SSH native support

All the functions run transparently over SSH with a possibility to execute as the root user via sudo. Look at the tests, they are all executed both locally and remotely.

Reporting

Advanced reports can be obtained by providing a log function, listening to stdout and stderr streams, generating diffs and backups.

Reliability

Feel confident. The modules are used in production for years and the code is enforced by an extensive test coverage.

Suppport

The package is open-sourced with one of the least restrictive licenses. Get involved and contribute to open source development by sending pull requests and requesting commercial support from Adaltas.

Redis installation example

// Including Nikita
const nikita = require('nikita')
// User configuration
const config = {
  // url: 'http://download.redis.io/redis-stable.tar.gz',
  // conf: {
  //   bind: '127.0.0.1',
  //   port: 6379,
  //   ...
  // }
}
// Nikita instantiation
nikita
// Activate CLI reporting
.log.cli()
// Define and execute a custom Redis action
.call({$header: 'Redis'}, config, function({config}){
  // Default configuration
  if(!config.url){ config.url = 'http://download.redis.io/redis-stable.tar.gz' }
  if(!config.conf){ config.conf = {} }
  if(!config.conf['bind']){ config.conf['bind'] = '127.0.0.1' }
  if(!config.conf['protected-mode']){ config.conf['protected-mode'] = 'yes' }
  if(!config.conf['port']){ config.conf['port'] = 6379 }
  // Do the job
  this
  .file.download({
    $header: 'Download',
    source: config.url,
    target: 'cache/redis-stable.tar.gz'
  })
  .execute({
    $header: 'Compilation',
    $unless_exists: 'redis-stable/src/redis-server',
    command: `
    tar xzf cache/redis-stable.tar.gz
    cd redis-stable
    make
    `
  })
  .file.properties({
    $header: 'Configuration',
    target: 'conf/redis.conf',
    separator: ' ',
    content: config.conf
  })
  .execute({
    $header: 'Startup',
    code_skipped: 3,
    command: `
    ./src/redis-cli ping && exit 3
    nohup ./redis-stable/src/redis-server conf/redis.conf &
    `
  })
})
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About

Nikita is an open source project hosted on GitHub and developed by Adaltas.