Automating infrastructure with ruby - Tiago Macedo

Slide deck used by Tiago Macedo on Coimbra.rb (organized by http://whitesmith.co )

Transcript

1. Automating Infrastructure with Ruby
2. DevOps
3. • Repeatability • Automation • Agility • Scalability • Reassurance • Disaster Recovery Infrastructure as Code Test-Driven Infrastructure with Chef By Stephen Nelson-Smith
4. Configuration Management
5. Puppet package { 'apache2': provider=>'apt', ensure=>'installed' } service { 'apache2': ensure=>'running' }
6. Chef package 'apache2' service 'apache2' do action [ :enable, :start ] end
7. Chef %w(mysql-server apache2).each do |s| package s service s do action [ :enable, :start ] end end
8. Chef ruby_block "add users to passwords file" do block do require 'webrick/httpauth/htpasswd' passwd = WEBrick::HTTPAuth::Htpasswd.new(nginx[:pass_file]) nginx[:users].each do |u| passwd.set_passwd( 'Auth', u['username'], u['password'] ) end passwd.flush end end
9. Chef name "varnish" description "Varnish caching proxy for Solr" run_list 'varnish' default_attributes( :varnish => { :malloc => '3G', :backend => { :nodes => Configuration::Server.all.select { |s| s.solr_slave? && s.production? }.map{|s| s.name}, :port => 30002 } } )
10. Chef { "run_list" : [ "role[staging_server]" ], "database_config" : { "staging" : { "database" : "staging", "adapter" : "mysql2", "reconnect" : "true", "host" : "localhost", "username" : "staging", "encoding" : "utf8" } } }
11. Chef server "lisbon", :staging_server do natted! attributes( :database_config => { :staging => { :adapter => "mysql2", :database => "staging", :encoding => "utf8", :reconnect => "true", :username => "staging", :host => "localhost" } } ) end
12. Chef package 'haproxy' template '/etc/haproxy/haproxy.cfg' do variables :port => 80 owner 'haproxy' end service 'haproxy' do action [:start] end
13. Chef package 'nginx' template '/etc/nginx/nginx.cfg' do variables :port => 80 owner 'nginx' end service 'nginx' do action [:start] end
14. Chef file '/home/user/scripts/remove_some_file' do content “rm some_random_file“ end file '/home/user/scripts/remove_some_file' do action :delete end
15. • VMs • OpenVZ • Docker Immutable Infrastructure / Deployments
16. Vagrant
17. Capistrano config/deploy/vagrant.rb ssh_options[:port] = 2222 server 'localhost', :web, :app cap vagrant deploy
18. fog
19. Bootstrapping Fog::Compute.new(credentials).servers.create( flavor_id: flavor_id, image_id: image_id, name: name, public_key_path: ssh_key_path )
20. Load Balancers elb = Fog::AWS::ELB.new(credentials) listener = {'Protocol' => 'HTTP', 'LoadBalancerPort' => 80, 'InstancePort' => 80, 'InstanceProtocol' => 'HTTP'} elb.create_load_balancer('us-east-1a', 'my-elb',[listener]) ids = Fog::Compute.new(credentials).servers.map {|s| s.id} elb.register_instances_with_load_balancer(ids, 'my-elb')
21. DNS dns = Fog::DNS.new(credentials) zone = dns.zones.get('mydomain.com') zone.records.create( :name => 'foo.mydomain.com', :value => '127.0.0.1', :type => 'A')