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[ABANDONED] PHP library for executing commands on multiple remote machines, via SSH

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#Shunt

Teaser

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Inspired by Ruby's Capistrano, Shunt is PHP library for executing commands on multiple remote machines, via SSH. Specifically, this library was written to simplify and automate deployment of PHP applications to distributed environments.

Install

Via Composer

{
    "require": {
        "league/shunt": "~2.0"
    }
}

Requirement

  • PHP >= 5.3.3
  • libssh2
  • ssh2.so

Additional Features

  • Secure copy (SCP) support
  • Secure FTP (SFTP) support

Assumptions

Shunt has very firm ideas about how things ought to be done, and tries to force those ideas on you. Some of the assumptions behind these opinions are:

  • You are using SSH to access the remote servers.
  • You either have the same password to all target machines, or you have public keys in place to allow passwordless access to them.

Do not expect these assumptions to change.

Usage

In general, you'll use Shunt as follows:

  • Create a recipe file (Shuntfile).
  • Use the shunt script to execute your recipe.

From the root folder of your composer-based project, use the Shunt script as follows:

vendor/bin/shunt some_task some_host,other_host

By default, the script will look for a file called Shuntfile, which contain hosts information, credential and your tasks. Here the structure of Shuntfile :

<?php

return array(

	'hosts' => array(
		'staging' => 'staging.domain.com',
		'repro' => 'backup.domain.com',
		'production' => 'production.domain.com',
	),

	'auth' => array(
		'username' => 'shunt',
		'password' => 'hearmyroar',
		'pubkeyfile' => NULL,
		'privkeyfile' => NULL,
		'passphrase' => NULL,
	),

	'tasks' => array(
		'read_home_dir' => function($s) {
			$s->run('ls');
		},
		'print_php_info' => function($s) {
			$s->run('php -i');
		},
		'upload_foo_source' => function($s) {
			$s->sftp()->mkdir('source');
			$s->scp()->put('foo', 'source/foo');
		}
	),
);

The tasks collection indicates which tasks that available to execute. You can execute list command to see all the available tasks and available hosts. Based by above recipes, you could run :

vendor/bin/shunt read_home_dir .

Above command will execute ls on all remote machines defined in hosts parameter. You could tell Shunt to run the task on specific host(s) by appending the host nickname right after the task :

vendor/bin/shunt read_home_dir staging
vendor/bin/shunt print_php_info staging,production

As you may already notice, you could easily access SCP and SFTP instance by calling scp() or sftp() method within your task. Bellow table shows available APIs for both SCP and SFTP instances :

Type Method Signature Description
SCP put($localFile = '', $remoteFile = '') Send a file from local to remote path
SCP get($remoteFile = '', $localFile = '') Get a file from remote to local path
SFTP chmod($filename = '', $mode = 0644) Attempts to change the mode of the specified file to that given in mode.
SFTP lstat($path = '') Stats a symbolic link on the remote filesystem without following the link.
SFTP stat($path = '') Stats a file on the remote filesystem following any symbolic links.
SFTP mkdir($dirname = '', $mode = 0777, $recursive = false) Creates a directory on the remote file server with permissions set to mode.
SFTP rmdir($dirname = '') Removes a directory from the remote file server.
SFTP symlink($target = '',$link = '') Creates a symbolic link named link on the remote filesystem pointing to target.
SFTP readlink($link = '') Returns the target of a symbolic link.
SFTP realpath($filename = '') Translates filename into the effective real path on the remote filesystem.
SFTP rename($from = '', $to = '') Renames a file on the remote filesystem.
SFTP unlink($filename = '') Deletes a file on the remote filesystem.

Changelog

See the changelog file

Contributing

Please see CONTRIBUTING for details.

Support

Bugs and feature request are tracked on GitHub

License

Shunt is released under the MIT License. See the bundled LICENSE file for details.

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[ABANDONED] PHP library for executing commands on multiple remote machines, via SSH

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