# 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 - Kentaro Kuribayashi <kentarok@gmail.com> - Yuki Shibazaki <shibayu36 at gmail.com> # SEE ALSO - Tutorial (Japanese) [http://d.hatena.ne.jp/naoya/20130118/1358477523](http://d.hatena.ne.jp/naoya/20130118/1358477523) - [capistrano](http://search.cpan.org/perldoc?capistrano) - [Archer](http://search.cpan.org/perldoc?Archer) # 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.