Difference between pages "Package:Varnish" and "Package:Ruby"

From Funtoo
(Difference between pages)
Jump to navigation Jump to search
(add apache benchmarking)
 
(add puma section, remove warnings, fix console spacings, add categories, adjust links to reflect ruby rather than rubygems since the gems article got railroaded to ruby some how)
 
Line 1: Line 1:
{{Ebuild
{{Ebuild
|Summary=Varnish is a state-of-the-art, high-performance HTTP accelerator
|Summary=Centralized Ruby extension management system
|CatPkg=www-servers/varnish
|CatPkg=dev-ruby/ruby
|Maintainer=
|Maintainer=
|Homepage=https://www.ruby-lang.org
}}
}}
__TOC__
'''Varnish''' is a webcache & http accelerator.  Varnish will either serve cached content, or retireve content from the server, and cache it.  Varnish will reduce I/O pressure from webservers.


==Install==
Ruby is a programming language with its own package management system to extend the language.
===Emerge===


Install {{Package|www-servers/varnish}}
Rubygems is a package management system to extend the ruby language.
<console>###i## www-servers/varnish</console>


==Configuration==
Gems are packaged wonky in portage so this page will explain how to work with rubygems rather than fight it.  Arch wiki outlines a similar method. 


Configuration is controlled by /etc/varnish/default.vcl & /etc/conf.d/varnishd
https://wiki.archlinux.org/index.php/Ruby#RubyGems


{{file|name=/etc/varnish/default.vcl|desc=varnish configuration file|body=
Emerge ruby & rubygems:
vcl 4.0;
<console>###i## emerge ruby rubygems</console>
backend default {
 
    .host = "127.0.0.1";
Remove conflicting gems:
    .port = "8080";
<console>###i## emerge -C dev-ruby/rake dev-ruby/racc dev-ruby/json dev-ruby/rdoc</console>
}
 
}}
Flush conflicting gems bad specs:
<console>###i## mv /usr/local/lib64/ruby/gems/2.1.0/specifications/ /usr/local/lib64/ruby/gems/2.1.0/specifications.backup</console>
 
 
Fetch gems via rubygems:
<console>###i## gem install rdoc json rake racc</console>
 
<console>###i## rubygems-update</console>
 
update gem system:
<console>###i## update_rubygems
###i## gem update --system
###i## gem pristine --all
</console>
 
Now you're ready to use gem to manage gems.


{{file|name=/etc/conf.d/varnishd|desc=varnish configuration file|body=
To add gems to your path:
VARNISHD="/usr/sbin/varnishd"
{{file|name=$HOME/.bashrc|desc=add gem bin directory to your path|body=
VARNISHADM="/usr/bin/varnishadm"
PATH="$(ruby -rubygems -e 'puts Gem.user_dir')/bin:$PATH"
CONFIGFILE="/etc/varnish/default.vcl"
VARNISHD_OPTS="-a 127.0.0.1:80"
VARNISHD_OPTS="${VARNISHD_OPTS} -u varnish -g varnish"
}}
}}


Varnish will fetch data from localhost:8080 and serve accelerated proxy data on localhost:80
==ruby on rails==
<console>###i## gem install rails
###i## rails new testproject
###i## cd testproject
###i## bundle install</console>


== BootService ==
==puma==
puma is a fast web server for ruby on rails.


To start varnish immediately:
To enable puma in your project:
<console>###i## rc-service varnishd start</console>
{{file|name=$HOME/testproject/Gemfile|desc=add puma gem to your rails application|body=
gem 'puma'
}}


To start varnish at boot:
To pull in puma:
<console>###i## rc-update add varnishd default</console>
<console>###i## bundle install</console>


== Verification ==
{{file|name=$HOME/testproject/config/puma.rb|desc=puma configuration file|body=
To verify that your traffic is going through varnish.
<pre>workers Integer(ENV['PUMA_WORKERS'] || 3)
<console>$##i## curl -I https://www.varnish-cache.org/</console>
threads Integer(ENV['MIN_THREADS']  || 1), Integer(ENV['MAX_THREADS'] || 16)


== Benchmarking ==
preload_app!
If your system has apache installed apache benchmark can show the power of varnish.  The examples shown are running 500 requests with concurrency of 100 hits.


rackup      DefaultRackup
port        ENV['PORT']    || 3000
environment ENV['RACK_ENV'] || 'development'


ab against a 3 worker cluster mode puma server
on_worker_boot do
<console>###i## ab -n 500 -c 100 http://127.0.0.1:3000/index.html | grep Request</console>
  # worker specific setup
Requests per second:   110.92 [#/sec] (mean)
  ActiveSupport.on_load(:active_record) do
 
    config = ActiveRecord::Base.configurations[Rails.env] ||
                Rails.application.config.database_configuration[Rails.env]
    config['pool'] = ENV['MAX_THREADS'] || 16
    ActiveRecord::Base.establish_connection(config)
  end
end</pre>
}}


ab against the same server served through varnish
to start puma:
<console>###i## ab -n 500 -c 100 http://127.0.0.1/index.html | grep Request</console>
<console>###i## bundle exec puma</console>
Requests per second:    10268.42 [#/sec] (mean)
or if you added gems bin dir to your path
<console>###i## puma</console>


[[Category:Server]]
[[Category:Programming language]]
[[Category:Daemons]]


{{EbuildFooter}}
{{EbuildFooter}}

Revision as of 19:44, August 23, 2014

Ruby

   Tip

We welcome improvements to this page. To edit this page, Create a Funtoo account. Then log in and then click here to edit this page. See our editing guidelines to becoming a wiki-editing pro.


Ruby is a programming language with its own package management system to extend the language.

Rubygems is a package management system to extend the ruby language.

Gems are packaged wonky in portage so this page will explain how to work with rubygems rather than fight it. Arch wiki outlines a similar method.

https://wiki.archlinux.org/index.php/Ruby#RubyGems

Emerge ruby & rubygems: 

root # emerge ruby rubygems

Remove conflicting gems: 

root # emerge -C dev-ruby/rake dev-ruby/racc dev-ruby/json dev-ruby/rdoc

Flush conflicting gems bad specs: 

root # mv /usr/local/lib64/ruby/gems/2.1.0/specifications/ /usr/local/lib64/ruby/gems/2.1.0/specifications.backup


Fetch gems via rubygems: 

root # gem install rdoc json rake racc
root # rubygems-update

update gem system: 

root # update_rubygems
root # gem update --system
root # gem pristine --all

Now you're ready to use gem to manage gems.

To add gems to your path:

   $HOME/.bashrc - add gem bin directory to your path
PATH="$(ruby -rubygems -e 'puts Gem.user_dir')/bin:$PATH"

ruby on rails

root # gem install rails
root # rails new testproject
root # cd testproject
root # bundle install

puma

puma is a fast web server for ruby on rails.

To enable puma in your project:

   $HOME/testproject/Gemfile - add puma gem to your rails application
gem 'puma'

To pull in puma: 

root # bundle install
   $HOME/testproject/config/puma.rb - puma configuration file
workers Integer(ENV['PUMA_WORKERS'] || 3)
threads Integer(ENV['MIN_THREADS']  || 1), Integer(ENV['MAX_THREADS'] || 16)

preload_app!

rackup      DefaultRackup
port        ENV['PORT']     || 3000
environment ENV['RACK_ENV'] || 'development'

on_worker_boot do
  # worker specific setup
  ActiveSupport.on_load(:active_record) do
    config = ActiveRecord::Base.configurations[Rails.env] ||
                Rails.application.config.database_configuration[Rails.env]
    config['pool'] = ENV['MAX_THREADS'] || 16
    ActiveRecord::Base.establish_connection(config)
  end
end

to start puma: 

root # bundle exec puma

or if you added gems bin dir to your path 

root # puma


Retrieved from "https://www.funtoo.org/index.php?title=Package:Varnish&oldid=5087"