# This defines a deployment "recipe" that you can feed to capistrano # (http://manuals.rubyonrails.com/read/book/17). It allows you to automate # (among other things) the deployment of your application. # ============================================================================= # REQUIRED VARIABLES # ============================================================================= # You must always specify the application and repository for every recipe. The # repository must be the URL of the repository you want this recipe to # correspond to. The deploy_to path must be the path on each machine that will # form the root of the application path. set :application, "potts_auction" set :repository, "http://svn.yourhost.com/#{application}/trunk" # ============================================================================= # ROLES # ============================================================================= # You can define any number of roles, each of which contains any number of # machines. Roles might include such things as :web, or :app, or :db, defining # what the purpose of each machine is. You can also specify options that can # be used to single out a specific subset of boxes in a particular role, like # :primary => true. role :app, "pottsauction.com" role :web, "pottsauction.com" role :db, "pottsauction.com" # ============================================================================= # OPTIONAL VARIABLES # ============================================================================= set :deploy_to, "/var/www/vhosts/pottsauction.com/subdomains/a/potts" # defaults to "/u/apps/#{application}" set :user, "root" # defaults to the currently logged in user # set :scm, :darcs # defaults to :subversion # set :svn, "/path/to/svn" # defaults to searching the PATH # set :darcs, "/path/to/darcs" # defaults to searching the PATH # set :cvs, "/path/to/cvs" # defaults to searching the PATH # set :gateway, "gate.host.com" # default to no gateway # ============================================================================= # SSH OPTIONS # ============================================================================= # ssh_options[:keys] = %w(/path/to/my/key /path/to/another/key) # ssh_options[:port] = 25 # ============================================================================= # TASKS # ============================================================================= # Define tasks that run on all (or only some) of the machines. You can specify # a role (or set of roles) that each task should be executed on. You can also # narrow the set of servers to a subset of a role by specifying options, which # must match the options given for the servers to select (like :primary => true) desc < :db, :only => { :primary => true } do # the on_rollback handler is only executed if this task is executed within # a transaction (see below), AND it or a subsequent task fails. on_rollback { delete "/tmp/dump.sql" } run "mysqldump -u theuser -p thedatabase > /tmp/dump.sql" do |ch, stream, out| ch.send_data "thepassword\n" if out =~ /^Enter password:/ end end # Tasks may take advantage of several different helper methods to interact # with the remote server(s). These are: # # * run(command, options={}, &block): execute the given command on all servers # associated with the current task, in parallel. The block, if given, should # accept three parameters: the communication channel, a symbol identifying the # type of stream (:err or :out), and the data. The block is invoked for all # output from the command, allowing you to inspect output and act # accordingly. # * sudo(command, options={}, &block): same as run, but it executes the command # via sudo. # * delete(path, options={}): deletes the given file or directory from all # associated servers. If :recursive => true is given in the options, the # delete uses "rm -rf" instead of "rm -f". # * put(buffer, path, options={}): creates or overwrites a file at "path" on # all associated servers, populating it with the contents of "buffer". You # can specify :mode as an integer value, which will be used to set the mode # on the file. # * render(template, options={}) or render(options={}): renders the given # template and returns a string. Alternatively, if the :template key is given, # it will be treated as the contents of the template to render. Any other keys # are treated as local variables, which are made available to the (ERb) # template. desc "Demonstrates the various helper methods available to recipes." task :helper_demo do # "setup" is a standard task which sets up the directory structure on the # remote servers. It is a good idea to run the "setup" task at least once # at the beginning of your app's lifetime (it is non-destructive). setup buffer = render("maintenance.rhtml", :deadline => ENV['UNTIL']) put buffer, "#{shared_path}/system/maintenance.html", :mode => 0644 sudo "killall -USR1 dispatch.fcgi" run "#{release_path}/script/spin" delete "#{shared_path}/system/maintenance.html" end # You can use "transaction" to indicate that if any of the tasks within it fail, # all should be rolled back (for each task that specifies an on_rollback # handler). desc "A task demonstrating the use of transactions." task :long_deploy do transaction do update_code disable_web symlink migrate end restart enable_web end desc "Restart the web server" task :restart, :roles => :app do sudo "apachectl graceful" end task :update_code, :roles => [:web] do on_rollback { delete release_path, :recursive => true } code_dest = "/Users/jg/rails/potts" system("tar --exclude=*.log --exclude=public/image/* --exclude=public/item/* --exclude=tmp/* -C #{code_dest} -c -h -z -f code_update.tar.gz .") put(File.read("code_update.tar.gz"), "code_update.tar.gz") #puts "...detar code on server" run <<-CMD mkdir -p #{release_path} && tar -C #{release_path} -x -z -f code_update.tar.gz && rm -rf #{release_path}/code_update.tar.gz && rm -rf #{release_path}/log #{release_path}/public/system && ln -nfs #{shared_path}/log #{release_path}/log && ln -nfs #{shared_path}/system #{release_path}/public/system CMD # system("rm -rf #{temp_dest} code_update.tar.gz") system("rm -rf code_update.tar.gz") end desc "Correct settings" task :after_update_code do run "rm -rf #{release_path}/public/image #{release_path}/public/item" run "ln -nfs #{shared_path}/image #{release_path}/public/image" run "ln -nfs #{shared_path}/item #{release_path}/public/item" run "cp #{release_path}/config/database.deploy.yml #{release_path}/config/database.yml" run "cp #{release_path}/config/environment.deploy.rb #{release_path}/config/environment.rb" run "chown pottsauction.psacln #{release_path} -R" run "chmod 755 #{release_path}/public/.htaccess" end