miceda

Here’s a simple task that I use to install Erlang on remote servers using Capistrano and Deprec. Assuming you have an SSH key setup with the remote server, you can run this task from a terminal like this: “miceda:erlang:install”. This downloads the source and does the make/make install dance.

Capistrano::Configuration.instance(:must_exist).load do
 # install Erlang 12 on Ubuntu 7.10 (gutsy)
 namespace :miceda do
  namespace :erlang do
    SRC_PACKAGES[:erlang] = {
      :filename => 'otp_src_R12B-1.tar.gz',
      :dir => 'otp_src_R12B-1',
      :url => "http://www.erlang.org/download/otp_src_R12B-1.tar.gz",
      :unpack => "tar zxf otp_src_R12B-1.tar.gz;",
      :configure => %w(
        ./configure
        ;
       ).reject{|arg| arg.match '#'}.join(' '),
       :make => 'make;',
       :install => 'make install;'
    }

    desc "Install Erlang 12B-1"
     task :install do
       install_deps
       deprec2.download_src(SRC_PACKAGES[:erlang], src_dir)
       deprec2.install_from_src(SRC_PACKAGES[:erlang], src_dir)
     end

     desc "Install deps for Erlang"
      task :install_deps do
       apt.install( {:base => %w(libc6 libncurses5 libncurses5-dev libssl-dev openssl m4 libexpat1-dev)}, :stable )
      end

    end
  end
end

Of course the big benefit is that with Capistrano you can do this across several servers at the same time.