Commit d103dda7ee3f7696007d230c76c7739dd57115ec to mbailey's deprec

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mbailey / deprec

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Description:	master respository for deprec - deployment recipes for capistrano edit
Homepage:	http://www.deprec.org/ edit
Public Clone URL:	git://github.com/mbailey/deprec.git Give this clone URL to anyone. `git clone git://github.com/mbailey/deprec.git`
Your Clone URL:	git@github.com:mbailey/deprec.git Use this clone URL yourself. `git clone git@github.com:mbailey/deprec.git`

Restricted tasks to roles.

I like restricting tasks to roles, partly out of laziness. I don't need
to specify HOSTS or ROLES on the command line as long as I've defined
the relevant roles somewhere. It also provides a safety net. Without
specifying HOSTS or ROLES on the command line, a task will get run on
*all* defined hosts. This can be avoided by restricting the tasks
themselves in deprec.

A problem with restricting tasks to roles in deprec was that Capistrano
complained when I ran a task in an ad-hoc manner without any hosts being
defined for the roles it was restricted to.

Sometimes I want to run a task on hosts but don't want to add them to
a deploy.rb. Editing a file just to use a command line is extra work!

e.g. cap deprec:mysql:install HOSTS=foo,bar

This problem caused me to remove a lot of role restrictions from deprec
over the last year or so.

My Capistrano patch (included in capistrano-2.5.0) causes Capistrano
to not complain about an undefined role if HOSTS or ROLES are specified
on the command line.

http://github.com/jamis/capistrano/commit/8badb0c522b38fae9cbe973451472afbddef61
cb

So, I'm putting the roles back in.

- Mike

mbailey (author)

Thu Sep 04 00:09:30 -0700 2008

commit d103dda7ee3f7696007d230c76c7739dd57115ec
tree a374e78d6debd6115c99d6f4f919363e4f170d8b
parent 4551d7db8b9fbc34f2fbf14e5fb7239adb69aefa

lib/deprec/recipes/mongrel.rb
lib/deprec/recipes/mysql.rb
lib/deprec/recipes/nginx.rb
lib/deprec/recipes/rails.rb

lib/deprec/recipes/mongrel.rb

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@@ -21,7 +21,7 @@ Capistrano::Configuration.instance(:must_exist).load do
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       # Install 
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       desc "Install mongrel"
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-      task :install do
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+      task :install, :roles => :app do
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         gem2.install 'mongrel'
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         gem2.install 'mongrel_cluster'
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         gem2.install 'swiftiply'
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@@ -32,11 +32,11 @@ Capistrano::Configuration.instance(:must_exist).load do
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         activate_system
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       end
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-      task :symlink_mongrel_rails do
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+      task :symlink_mongrel_rails, :roles => :app do
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         sudo "ln -sf /usr/local/bin/mongrel_rails /usr/bin/mongrel_rails"
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       end
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-      task :symlink_logrotate_config do
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+      task :symlink_logrotate_config, :roles => :app do
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         sudo "ln -sf #{deploy_to}/mongrel/logrotate.conf /etc/logrotate.d/mongrel-#{application}"
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       end
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lib/deprec/recipes/mysql.rb

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@@ -6,13 +6,13 @@ Capistrano::Configuration.instance(:must_exist).load do
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       # Installation
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       desc "Install mysql"
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-      task :install do
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+      task :install, :roles => :db do
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         install_deps
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         # symlink_mysql_sockfile # XXX still needed?
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       end
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       # Install dependencies for Mysql
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-      task :install_deps do
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+      task :install_deps, :roles => :db do
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         apt.install( {:base => %w(mysql-server mysql-client)}, :stable )
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       end
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lib/deprec/recipes/nginx.rb

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@@ -17,7 +17,7 @@ Capistrano::Configuration.instance(:must_exist).load do
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       }
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       desc "Install nginx"
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-      task :install do
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+      task :install, :roles => :web do
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         install_deps
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         deprec2.download_src(SRC_PACKAGES[:nginx], src_dir)
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         deprec2.install_from_src(SRC_PACKAGES[:nginx], src_dir)
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@@ -30,12 +30,12 @@ Capistrano::Configuration.instance(:must_exist).load do
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       end
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       # install dependencies for nginx
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-      task :install_deps do
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+      task :install_deps, :roles => :web do
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         apt.install( {:base => %w(libpcre3 libpcre3-dev libpcrecpp0 libssl-dev zlib1g-dev)}, :stable )
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         # do we need libgcrypt11-dev?
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       end
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-      task :create_nginx_user do
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+      task :create_nginx_user, :roles => :web do
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         deprec2.groupadd(nginx_group)
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         deprec2.useradd(nginx_user, :group => nginx_group, :homedir => false)
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       end
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@@ -84,11 +84,11 @@ Capistrano::Configuration.instance(:must_exist).load do
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       Activate nginx start scripts on server.
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       Setup server to start nginx on boot.
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       DESC
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-      task :activate do
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+      task :activate, :roles => :web do
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         activate_system
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       end
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-      task :activate_system do
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+      task :activate_system, :roles => :web do
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         send(run_method, "update-rc.d nginx defaults")
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       end
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@@ -96,7 +96,7 @@ Capistrano::Configuration.instance(:must_exist).load do
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       Dectivate nginx start scripts on server.
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       Setup server to start nginx on boot.
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       DESC
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-      task :deactivate do
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+      task :deactivate, :roles => :web do
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         send(run_method, "update-rc.d -f nginx remove")
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       end
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lib/deprec/recipes/rails.rb

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@@ -90,7 +90,7 @@ Capistrano::Configuration.instance(:must_exist).load do
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         install_stack
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       end
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-      task :install_gems_for_project do
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+      task :install_gems_for_project, :roles => :app do
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           if gems_for_project
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             gems_for_project.each { |gem| gem2.install(gem) }
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           end
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@@ -122,23 +122,23 @@ Capistrano::Configuration.instance(:must_exist).load do
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         deprec2.push_configs(:nginx, PROJECT_CONFIG_FILES[:nginx])
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         top.deprec.mongrel.config_project
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         symlink_nginx_vhost
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-        symlink_logrotate_config
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+        symlink_nginx_logrotate_config
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       end
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       task :symlink_nginx_vhost, :roles => :web do
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         sudo "ln -sf #{deploy_to}/nginx/rails_nginx_vhost.conf #{nginx_vhost_dir}/#{application}.conf"
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       end
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-      task :symlink_logrotate_config, :roles => :web do
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+      task :symlink_nginx_logrotate_config, :roles => :web do
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         sudo "ln -sf #{deploy_to}/nginx/logrotate.conf /etc/logrotate.d/nginx-#{application}"
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       end
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-      task :create_config_dir do
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+      task :create_config_dir, :roles => :app do
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         deprec2.mkdir("#{shared_path}/config", :group => group, :mode => 0775, :via => :sudo)
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       end
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       desc "Create deployment group and add current user to it"
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-      task :setup_user_perms do
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+      task :setup_user_perms, :roles => [:app, :web] do
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         deprec2.groupadd(group)
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         deprec2.add_user_to_group(user, group)
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         deprec2.groupadd(mongrel_group)
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@@ -160,7 +160,7 @@ Capistrano::Configuration.instance(:must_exist).load do
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       end
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       # setup extra paths required for deployment
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-      task :setup_paths, :roles => :app do
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+      task :setup_paths, :roles => [:app, :web] do
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         deprec2.mkdir(deploy_to, :mode => 0775, :group => group, :via => :sudo)
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         deprec2.mkdir(shared_path, :mode => 0775, :group => group, :via => :sudo)
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       end
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@@ -285,4 +285,4 @@ Capistrano::Configuration.instance(:must_exist).load do
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   end
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-end
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\ No newline at end of file
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+end

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