[chef] Re: Modifying LWRP call in library cookbook

[Greg Symons < >]

It looks like your template probably is not named "/etc/sv/myapp/run". 
There's not really enough code there for me to tell what 
new_resource.name is in that scope, but that's what you need to search 
for. You also might want to try the chef-rewind gem for this... it wraps 
up the search and makes these kind of alterations look a little less 
ugly... but you still have to have the right name.

Greg

On 09/17/13 11:58, James Wilford wrote:
> Hi,
>
> I'm using the application_ruby cookbook to deploy a rails app. I'm
> trying to get zero-downtime restarts working Unicorn and I found a
> guide at https://gist.github.com/czarneckid/4639793 which seems to
> work, but I need to use a custom runit template.
>
> When I call the application provider in my wrapper cookbook, this
> creates a runit service:
>
> My wrapper:
>
> name = 'myapp'
>
> application name do
>   (snip)
>
>    unicorn do
>      restart_command do
>        execute "/etc/init.d/#{name} restart" do
>          user "root"
>        end
>      end
>      worker_processes 2
>      listen ({ "#{app_path}/shared/.unicorn.sock" => { :tcp_nodelay =>
> true, :backlog => 100 }})
>      pid    "#{app_path}/shared/pids/unicorn.pid"
>      stderr_path "#{app_path}/shared/log/unicorn.stderr.log"
>      stdout_path "#{app_path}/shared/log/unicorn.stdout.log"
>      before_exec "ENV['BUNDLE_GEMFILE'] = \"#{app_path}/current/Gemfile\""
>      before_fork before_fork
>      after_fork  after_fork
>    end
> end
>
> https://github.com/opscode-cookbooks/application_ruby/blob/master/providers/unicorn.rb:
>
>    runit_service new_resource.name do
>      run_template_name 'unicorn'
>      log_template_name 'unicorn'
>      owner new_resource.owner if new_resource.owner
>      group new_resource.group if new_resource.group
>
>      cookbook 'application_ruby'
>      options(
>        :app => new_resource,
>        :bundler => new_resource.bundler,
>        :bundle_command => new_resource.bundle_command,
>        :rails_env => new_resource.environment_name,
>        :smells_like_rack =>
> ::File.exists?(::File.join(new_resource.path, "current", "config.ru"))
>      )
>    end
>
> I'd like to change the 'cookbook' line there to use my own cookbook,
> so I can write a custom template. I tried changing the template
> resource for the runit file:
>
> srv = resources("template[/etc/sv/myapp/run]")
> srv.cookbook = 'my_cookbook'
>
> but I get "Cannot find a resource matching template[/etc/sv/myapp/run]
> (did you define it first?)"
>
> Is it possible to do this or do I need to fork the application_ruby cookbook?
>
> Thanks
>
> James