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a simple deploy tool
Perl Perl6

Checking in changes prior to tagging of version 0.28.

Changelog diff is:

diff --git a/Changes b/Changes
index 687bed9..7467e7a 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,8 @@
 Revision history for Perl extension Cinnamon

 {{$NEXT}}
+
+0.28 2015-08-23T06:20:47Z
     - Fixed a problem that Cinnamon does not work with Moo version 2.000000 or above

 0.27 2014-08-04T05:23:38Z
latest commit b79a3b4af9
@shibayu36 shibayu36 authored

README.md

NAME

Cinnamon - A minimalistic deploy tool

SYNOPSIS

use strict;
use warnings;

# Exports some commands
use Cinnamon::DSL;

my $application = 'My::App';

# It's required if you want to login to remote host
set user => 'johndoe';

# User defined params to use later
set application => $application;
set repository  => "git://git.example.com/projects/$application";

# Lazily evaluated if passed as a code
set lazy_value  => sub {
    #...
};

# Roles
role development => 'development.example.com', {
    deploy_to => "/home/app/www/$application-devel",
    branch    => "develop",
};

# Lazily evaluated if passed as a code
role production  => sub {
    my $res   = LWP::UserAgent->get('http://servers.example.com/api/hosts');
    my $hosts = decode_json $res->content;
       $hosts;
}, {
    deploy_to => "/home/app/www/$application",
    branch    => "master",
};

# Tasks
task update => sub {
    my ($host) = @_;
    my $deploy_to = get('deploy_to');
    my $branch = 'origin/' . get('branch');

    # Executed on localhost
    run 'some', 'command';

    # Executed on remote host
    remote {
        run "cd $deploy_to && git fetch origin && git checkout -q $branch && git submodule update --init";
    } $host;
};
task restart => sub {
  my ($host) = @_;
  # ...
};

# Nest tasks
task server => {
    setup => sub {
        my ($host) = @_;
        # ...
    },
};

# You can call other tasks
task deploy => sub {
  my ($host) = @_;
  call "update", $host;
  call "restart", $host;
};

WARNINGS

This software is under the heavy development and considered ALPHA quality. Things might be broken, not all features have been implemented, and APIs will be likely to change.

DESCRIPTION

Cinnamon is a minimalistic deploy tool aiming to provide structurization of issues about deployment. It only introduces the most essential feature for deployment and a few utilities.

DSLs

This module provides some DSLs for use. I designed them to be kept as simple as possible, and I don't want to add too many commands:

Structural Commands

role ( $role: Str => ($host: String | $hosts: Array[String] | $sub: CODE), $param: HASHREF )

role production => 'production.example.com';

# or

role production => [ qw(production1.example.com production2.exampl.ecom) ];

 # or

role production => sub {
    my $res   = LWP::UserAgent->get('http://servers.example.com/api/hosts');
    my $hosts = decode_json $res->content;
       $hosts;
};

# or

role production => 'production.example.com', {
    hoge => 'fuga',
};

Relates names (eg. production) to hosts to be deployed.

If you pass a CODE as the second argument, this method delays the value to be evaluated till the value is needed at the first time. This is useful, for instance, when you want to retrieve hosts information from some external APIs or so.

If you pass a HASHREF as the third argument, you can get specified parameters by get DSL.

task ( $taskname: Str => (\%tasks: Hash[String = CODE]> | $sub: CODE) )

task update => sub {
    my ($host) = @_;
    my $hoge = get 'hoge'; # parameter set in global or role parameter
    # ...
};

# you can nest tasks
task server => {
    start => sub {
      my ($host) = @_;
      # ...
    },
    stop => sub {
      my ($host) = @_;
      # ...
    },
};

Defines some named tasks by CODEs.

The arguments which are passed into the CODEs are:

  • $host

    The host name where the task is executed. Which is one of the hosts you set by role command.

Utilities

set ( $key: String => ($value: Any | $sub: CODE) )

set key => 'value';

# or

set key => sub {
    # values to be lazily evaluated
};

# or

set key => sub {
    my (@args) = @_;
    # value to be lazily evaluated with @args
};

Sets a value which is related to a key.

If you pass a CODE as the second argument, this method delays the value to be evaluated till get is called. This is useful when you want to retrieve hosts information from some external APIs or so.

get ( $key: String [, @args: Array[Any] ] ): Any

my $value = get 'key';

# or

my $value = get key => qw(foo bar baz);

Gets a value related to the key.

If the value is a CODE, you can pass some arguments which can be used while evaluating.

run ( @command: Array ): ( $stdout: String, $stderr: String )

my ($stdout, $stdout) = run 'git', 'pull';

Executes a command. It returns the result of execution, $stdout and $stderr, as strings.

sudo ( @command: Array ): ( $stdout: String, $stderr: String )

my ($stdout, $stdout) = sudo '/path/to/httpd', 'restart';

Executes a command as well, but under sudo environment.

remote ( $sub: CODE $host: String ): Any

my ($stdout, $stdout) = remote {
    run  'git', 'pull';
    sudo '/path/to/httpd', 'restart';
} $host;

Connects to the remote $host and executes the $code there.

Where run and sudo commands to be executed depends on that context. They are done on the remote host when set in remote block, whereas done on localhost without it.

Remote login username is retrieved by get 'user' or `whoami` command. Set appropriate username in advance if needed.

call ( $task_name: String, $host: String )

task deploy => sub {
  my ($host) = @_;
  call "update", $host;
  call "web:restart", $host;
};

Call other tasks in a task code.

Configuration Variables

Cinnamon configuration is managed by set function. You can customize following variables.

user

user name which is used for login to server.

concurrency

Max number of concurrent execution of tasks. the task which is not specified concurrency, is executed in parallel by all the hosts.

set concurrency => {
    restart        => 1,
    'server:setup' => 2,
};

REPOSITORY

https://github.com/kentaro/cinnamon

AUTHOR

SEE ALSO

LICENSE

Copyright (C) Kentaro Kuribayashi

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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