Class: DevLXC::ChefServer

Inherits:
Object
  • Object
show all
Defined in:
lib/dev-lxc/chef-server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, cluster_config) ⇒ ChefServer

Returns a new instance of ChefServer.



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# File 'lib/dev-lxc/chef-server.rb', line 8

def initialize(name, cluster_config)
  unless cluster_config["servers"].keys.include?(name)
    raise "Server #{name} is not defined in the cluster config"
  end
  cluster = DevLXC::ChefCluster.new(cluster_config)
  @server = DevLXC::Container.new(name)
  @config = cluster_config["servers"][@server.name]
  @ipaddress = @config["ipaddress"]
  case cluster.topology
  when "open-source", "standalone"
    @role = cluster.topology
  when "tier", "ha"
    @role = "bootstrap_backend" if @server.name == cluster.bootstrap_backend
    @role = "secondary_backend" if @server.name == cluster.secondary_backend
    @role = "frontend" if cluster.frontends.include?(@server.name)
  end
  @mounts = cluster_config["mounts"]
  @bootstrap_backend = cluster.bootstrap_backend
  @chef_server_config = cluster.chef_server_config
  @api_fqdn = cluster.api_fqdn
  @base_platform = cluster_config["base_platform"]
  @packages = cluster_config["packages"]

  @base_server_name = @base_platform
  @base_server_name += "-ec-#{Regexp.last_match[1].gsub(".", "-")}" if @packages["server"].to_s.match(/private-chef[_-]((\d+\.?){3,})-/)
  @base_server_name += "-osc-#{Regexp.last_match[1].gsub(".", "-")}" if @packages["server"].to_s.match(/chef-server[_-]((\d+\.?){3,})-/)
  @base_server_name += "-reporting-#{Regexp.last_match[1].gsub(".", "-")}" if @packages["reporting"].to_s.match(/[_-]((\d+\.?){3,})-/)
  @base_server_name += "-pushy-#{Regexp.last_match[1].gsub(".", "-")}" if @packages["push-jobs-server"].to_s.match(/[_-]((\d+\.?){3,})-/)
end

Instance Attribute Details

#base_platform ⇒ Object (readonly)

Returns the value of attribute base_platform.



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# File 'lib/dev-lxc/chef-server.rb', line 6

def base_platform
  @base_platform
end

#base_server_name ⇒ Object (readonly)

Returns the value of attribute base_server_name.



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# File 'lib/dev-lxc/chef-server.rb', line 6

def base_server_name
  @base_server_name
end

Instance Method Details

#abspath(rootfs_path) ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 48

def abspath(rootfs_path)
  "#{@server.config_item('lxc.rootfs')}#{rootfs_path}" if @server.defined?
end

#configure_manage ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 212

def configure_manage
  puts "Disabling old opscode-webui in /etc/opscode/private-chef.rb"
  DevLXC.search_file_delete_line("#{@server.config_item('lxc.rootfs')}/etc/opscode/private-chef.rb", /opscode_webui[.enable.]/)
  DevLXC.append_line_to_file("#{@server.config_item('lxc.rootfs')}/etc/opscode/private-chef.rb", "\nopscode_webui['enable'] = false\n")
  run_ctl("private-chef", "reconfigure")
  run_ctl("opscode-manage", "reconfigure")
end

#configure_push_jobs_server ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 204

def configure_push_jobs_server
  run_ctl("opscode-push-jobs-server", "reconfigure")
  if %w(bootstrap_backend secondary_backend).include?(@role)
    run_ctl("private-chef", "reconfigure")
  end
  run_ctl("private-chef", "restart opscode-pushy-server")
end

#configure_reporting ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 194

def configure_reporting
  if %w(secondary_backend frontend).include?(@role)
    puts "Copying /etc/opscode-reporting from bootstrap backend"
    FileUtils.cp_r("#{LXC::Container.new(@bootstrap_backend).config_item('lxc.rootfs')}/etc/opscode-reporting",
                   "#{@server.config_item('lxc.rootfs')}/etc")
  end
  run_ctl("private-chef", "reconfigure")
  run_ctl("opscode-reporting", "reconfigure")
end

#configure_server ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 174

def configure_server
  case @role
  when "open-source"
    puts "Creating /etc/chef-server/chef-server.rb"
    FileUtils.mkdir("#{@server.config_item('lxc.rootfs')}/etc/chef-server")
    IO.write("#{@server.config_item('lxc.rootfs')}/etc/chef-server/chef-server.rb", @chef_server_config)
    run_ctl("chef-server", "reconfigure")
  when "standalone", "bootstrap_backend"
    puts "Creating /etc/opscode/private-chef.rb"
    FileUtils.mkdir("#{@server.config_item('lxc.rootfs')}/etc/opscode")
    IO.write("#{@server.config_item('lxc.rootfs')}/etc/opscode/private-chef.rb", @chef_server_config)
    run_ctl("private-chef", "reconfigure")
  when "secondary_backend", "frontend"
    puts "Copying /etc/opscode from bootstrap backend"
    FileUtils.cp_r("#{LXC::Container.new(@bootstrap_backend).config_item('lxc.rootfs')}/etc/opscode",
                   "#{@server.config_item('lxc.rootfs')}/etc")
    run_ctl("private-chef", "reconfigure")
  end
end

#create ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 102

def create
  if @server.defined?
    puts "Using existing container #{@server.name}"
    return
  end
  server_clone = DevLXC::Container.new("b-#{@server.name}")
  if server_clone.defined?
    puts "Cloning container #{server_clone.name} into container #{@server.name}"
    server_clone.clone(@server.name, {:flags => LXC::LXC_CLONE_SNAPSHOT|LXC::LXC_CLONE_KEEPMACADDR})
    @server = DevLXC::Container.new(@server.name)
    return
  else
    puts "Creating container #{@server.name}"
    unless %w(open-source standalone).include?(@role) || @server.name == @bootstrap_backend || DevLXC::Container.new(@bootstrap_backend).defined?
      raise "The bootstrap backend server must be created first."
    end
    base_server = create_base_server
    puts "Cloning container #{base_server.name} into container #{@server.name}"
    base_server.clone(@server.name, {:flags => LXC::LXC_CLONE_SNAPSHOT})
    @server = DevLXC::Container.new(@server.name)
    puts "Adding lxc.hook.post-stop hook"
    @server.set_config_item("lxc.hook.post-stop", "/usr/local/share/lxc/hooks/post-stop-dhcp-release")
    @server.save_config
    hwaddr = @server.config_item("lxc.network.0.hwaddr")
    raise "#{@server.name} needs to have an lxc.network.hwaddr entry" if hwaddr.empty?
    DevLXC.assign_ip_address(@ipaddress, @server.name, hwaddr)
    DevLXC.create_dns_record(@api_fqdn, @server.name, @ipaddress) if %w(open-source standalone frontend).include?(@role)
    @server.sync_mounts(@mounts)
    @server.start
    configure_server unless @packages["server"].nil?
    create_users if %w(standalone bootstrap_backend).include?(@role)
    if %w(standalone bootstrap_backend secondary_backend frontend).include?(@role)
      configure_reporting unless @packages["reporting"].nil?
      configure_push_jobs_server unless @packages["push-jobs-server"].nil?
    end
    if %w(standalone frontend).include?(@role) && ! @packages["manage"].nil?
      @server.install_package(@packages["manage"])
      configure_manage
    end
    @server.stop
    puts "Cloning container #{@server.name} into b-#{@server.name}"
    @server.clone("b-#{@server.name}", {:flags => LXC::LXC_CLONE_SNAPSHOT|LXC::LXC_CLONE_KEEPMACADDR})
  end
end

#create_base_server ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 147

def create_base_server
  base_server = DevLXC::Container.new(@base_server_name)
  if base_server.defined?
    puts "Using existing container #{base_server.name}"
    return base_server
  end
  base_platform = DevLXC.create_base_platform(@base_platform)
  puts "Cloning container #{base_platform.name} into container #{base_server.name}"
  base_platform.clone(base_server.name, {:flags => LXC::LXC_CLONE_SNAPSHOT})
  base_server = DevLXC::Container.new(base_server.name)

  # Rename procps in Ubuntu platforms because Enterprise Chef server < 11.0.0
  # postgres recipe will use it even though it does not work in an LXC container
  @packages["server"].to_s.match(/private-chef[_-](\d+)\.(\d+\.?){2,}-/)
  if base_platform.name.include?("ubuntu") && Regexp.last_match[1].to_i < 11
    FileUtils.mv("#{base_server.config_item('lxc.rootfs')}/etc/init.d/procps",
                 "#{base_server.config_item('lxc.rootfs')}/etc/init.d/procps.orig")
  end
  base_server.sync_mounts(@mounts)
  base_server.start
  base_server.install_package(@packages["server"]) unless @packages["server"].nil?
  base_server.install_package(@packages["reporting"]) unless @packages["reporting"].nil?
  base_server.install_package(@packages["push-jobs-server"]) unless @packages["push-jobs-server"].nil?
  base_server.stop
  return base_server
end

#create_users ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 225

def create_users
  puts "Creating users, keys and knife config files"
  FileUtils.mkdir_p(["#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/recipes",
                     "#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/templates/default",
                    "#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/libraries"])
  FileUtils.cp("#{File.dirname(__FILE__)}/../../files/create_users/default.rb", "#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/recipes")
  DevLXC.search_file_replace("#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/recipes/default.rb", /chef\.lxc/, @api_fqdn)
  FileUtils.cp("#{File.dirname(__FILE__)}/../../files/create_users/knife.rb.erb", "#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/templates/default")
  FileUtils.cp("#{File.dirname(__FILE__)}/../../files/create_users/create_users.rb", "#{@server.config_item('lxc.rootfs')}/cookbooks/create_users/libraries")
  IO.write("#{@server.config_item('lxc.rootfs')}/cookbooks/solo.rb", "cookbook_path '/cookbooks'")
  @server.run_command("/opt/opscode/embedded/bin/chef-solo -c /cookbooks/solo.rb -o create_users -l info")
  FileUtils.rm_r("#{@server.config_item('lxc.rootfs')}/cookbooks")
end

#deregister_from_dnsmasq(hwaddr) ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 82

def deregister_from_dnsmasq(hwaddr)
  DevLXC.search_file_delete_line("/etc/lxc/addn-hosts.conf", /^#{@ipaddress}\s/)
  DevLXC.search_file_delete_line("/etc/lxc/dhcp-hosts.conf", /,#{@ipaddress}$/)
  unless hwaddr.nil?
    DevLXC.search_file_delete_line("/etc/lxc/dhcp-hosts.conf", /^#{hwaddr}/)
  end
  DevLXC.reload_dnsmasq
end

#destroy ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 76

def destroy
  hwaddr = @server.config_item("lxc.network.0.hwaddr") if @server.defined?
  @server.destroy
  deregister_from_dnsmasq(hwaddr)
end

#destroy_base_container(type) ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 91

def destroy_base_container(type)
  case type
  when :unique
    DevLXC::Container.new("b-#{@server.name}").destroy
  when :shared
    DevLXC::Container.new(@base_server_name).destroy
  when :platform
    DevLXC::Container.new(@base_platform).destroy
  end
end

#run_command(command) ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 52

def run_command(command)
  if @server.running?
    puts "Running '#{command}' in #{@server.name}"
    @server.run_command(command)
  else
    puts "#{@server.name} is not running"
  end
end

#run_ctl(component, subcommand) ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 220

def run_ctl(component, subcommand)
  puts "Running `#{component}-ctl #{subcommand}` in #{@server.name}"
  @server.run_command("#{component}-ctl #{subcommand}")
end

#start ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 61

def start
  create
  hwaddr = @server.config_item("lxc.network.0.hwaddr")
  DevLXC.assign_ip_address(@ipaddress, @server.name, hwaddr)
  DevLXC.create_dns_record(@api_fqdn, @server.name, @ipaddress) if %w(open-source standalone frontend).include?(@role)
  @server.sync_mounts(@mounts)
  @server.start
end

#status ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 38

def status
  if @server.defined?
    state = @server.state
    ip_addresses = @server.ip_addresses.join(" ") if @server.state == :running
  else
    state = "not_created"
  end
  printf "%20s     %-15s %s\n", @server.name, state, ip_addresses
end

#stop ⇒ Object 



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# File 'lib/dev-lxc/chef-server.rb', line 70

def stop
  hwaddr = @server.config_item("lxc.network.0.hwaddr") if @server.defined?
  @server.stop
  deregister_from_dnsmasq(hwaddr)
end