Infrataster - Infra Behavior Testing Framework #oedo04

Infrataster ~ Infra Behavior Testing Framework ~ Ryota Arai !
େߐށ Ruby ձٞ 04 / #oedo04

#oedo04 is a ੜ׆ൃදձ

1. Self Intro 2. What I created recently

Who I am

Ryota Arai ߥҪ ྑଠ a.k.a. େ৔೿ͷएऀ ! COOKPAD, Inc Infra
Engineer Taken by @hsbt

My First Asakusa.rb 2012/4 I started using Ruby 2012/11 େ৔೿ʹೖ৴
2012/12/4 My First Asakusa.rb … 2014/4/19 Oedo RubyKaigi 04!!

What I created

Trending Repositories //github.com/trending

I'd like to watch GH trends on RSS reader!

//github-trends.ryotarai.info

git-commit-autouser $ gem install git-commit-autouser $ cat ~/.gitconﬁg [autouser-github] url-regexp
= github.com name = "Ryota Arai" email = [email protected] [autouser-company] url-regexp = git.example.com name = "Ohba-ha-no-wakamono" email = [email protected] [alias] ci = commit-autouser $ git remote -v origin [email protected]:… $ git ci -m 'Hello' $ git log -1 Author: Ryota Arai <[email protected]> $ git remote -v origin [email protected]:… $ git ci -m 'Hello' $ git log -1 Author: Ohba-ha-no-wakamono <[email protected]> http://ryotarai.github.io/git-commit-autouser/

What did I contribute to? • serverspec/serverspec • opscode/chef •
test-kitchen • kitchen-vagrant • etc…

Infrataster tast‧er [countable] 1. someone whose job is to test
the quality of foods, teas, wines etc by tasting them (Longman Dictionary)

What is Infrataster? It tests infrastructure's behavior from outside of
servers. ! What's that?

Infrastructure as Code Automate building infra by Code ! Chef,
Puppet, Ansible … # Example: Chef package 'apache2' do action :install end ! service 'apache2' do action :start end

When I write how to set web- servers up… 1.
Write Serverspec tests. 2. Write ﬁles like chef-cookbook. 3. After tests passed, go back to 1. 4. Finally, The cookbook is completed! VM Serverspec Test Provision

Serverspec tests the status of the server. describe package('apache2') do
it { should be_installed } end ! describe service('apache2') do it { should be_enabled } it { should be_running } end ! describe port(80) do it { should be_listening } end package 'apache2' do action :install end ! service 'apache2' do action :start end Serverspec Chef

I completed! But … $ sudo sh -c 'echo "192.168.33.10
web" >> /etc/hosts' $ curl -v http://web * About to connect() to 192.168.33.10 port 80 (#0) * Trying 192.168.33.10... (It takes long long time…) ^C $ telnet web 80 Trying 192.168.33.10... (It takes long long time…) ^C

Because of iptables $ sudo iptables -L Chain INPUT (policy
DROP) target prot opt source destination ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh ! Chain FORWARD (policy DROP) target prot opt source destination ! Chain OUTPUT (policy ACCEPT) target prot opt source destination

It works! $ sudo iptables -A INPUT -m state --state
NEW -m tcp -p tcp --dport 80 -j ACCEPT ! $ curl http://web <html><body><h1>It works!</h1> <p>This is the default web page for this server.</p> <p>The web server software is running but no content has been added, yet.</p> </body></html>

How to test such case? Check whether the server returns
200 OK, when I send a HTTP request.

How to test such case? Check whether the server returns
200 OK, when I send a HTTP request. describe http('http://app') do it "responds OK 200" do expect(response.code).to eq('200') end end This is what Infrataster is!

Getting Started $ bundle install $ rspec —init # spec/spec_helper.rb
require 'infrataster/rspec' # Gemﬁle gem 'infrataster'

Deﬁne Servers # spec/spec_helper.rb Infrataster::Server.deﬁne( :proxy, '192.168.33.10', vagrant: true, )
VM Host Proxy 192.168.33.10 *OGSB UBTUFS

Infrataster::Server.deﬁne( :app, '172.16.33.11', vagrant: true, from: :proxy # access from proxy ) VM Host Proxy 192.168.33.10 (172.16.33.10) App 172.16.33.11 *OGSB UBTUFS SSH Port Forwarding

Infrataster::Server.deﬁne( :app, '172.16.33.11', vagrant: true, from: :proxy ) Infrataster::Server.deﬁne( :db, '172.16.33.12', vagrant: true, from: :app, # access from app server mysql: {user: 'app', password: 'app'} ) VM Host Proxy App 172.16.33.11 DB 172.16.33.12 *OGSB UBTUFS SSH Port Forwarding

'http' type spec describe server(:proxy) do # 192.168.33.10 describe http('http://app')
do it "responds content including 'Hello Sinatra'" do expect(response.body).to include('Hello Sinatra') end end describe http('http://static') do it "responds content including 'Welcome to nginx!'" do expect(response.body).to include('Welcome to nginx!') end end end

'capybara' type spec describe server(:app) do # Test from proxy
server describe capybara('http://app') do it "responds content including 'Hello Sinatra'" do visit '/' expect(page).to have_content('Hello Sinatra') end end end

'capybara' type spec Firefox Visit http://127.0.0.1:XXXXX App Server Listen 80
describe server(:app) do # Test from proxy server describe capybara('http://app') do it "responds content including 'Hello Sinatra'" do visit '/' expect(page).to have_content('Hello Sinatra') end end end

'capybara' type spec describe server(:app) do # Test from proxy
server describe capybara('http://app') do it "responds content including 'Hello Sinatra'" do visit '/' expect(page).to have_content('Hello Sinatra') end end end Firefox SSH SSH App Server Visit http://127.0.0.1:XXXXX Forward from 127.0.0.1:XXXX to app:80 Listen 80

'capybara' type spec Firefox BrowserMob Proxy SSH SSH App Server
Rewrite HTTP header => Host: app Visit http://127.0.0.1:XXXXX Forward from 127.0.0.1:XXXX to app:80 Listen 80 describe server(:app) do # Test from proxy server describe capybara('http://app') do it "responds content including 'Hello Sinatra'" do visit '/' expect(page).to have_content('Hello Sinatra') end end end

'mysql_query' type spec describe server(:db) do describe mysql_query('SHOW STATUS') do
it 'responds uptime' do row = results.ﬁnd {|r| r['Variable_name'] == 'Uptime' } expect(row['Value'].to_i).to be > 0 end end end

Run Specs $ bundle exec rspec Run options: include {:focus=>true}
! All examples were ﬁltered out; ignoring {:focus=>true} ! server 'app' from 'proxy' capybara 'http://app' responds content including 'Hello Sinatra' http 'http://app' responds content including 'Hello Sinatra' responds OK 200 responds as 'text/html' server 'proxy' http 'http://static' responds as 'text/html' responds content including 'Welcome to nginx!' … ! Finished in 17.92 seconds 11 examples, 0 failures ! Randomized with seed 12750

After Infrataster Test Passed There is no longer "iptables" problems!
$ curl http://server_tested_with_infrataster It always works!

You can see example: ! //github.com/ryotarai/infrataster/ tree/master/example

Further development • Dog-fooding • Write unit-test specs & Refactor
• Add types to support other protocols and middlewares • Support multi-hop SSH tunnel • Implement features that users need! Feedbacks are welcome!

//github.com/ryotarai/ infrataster

Infrataster - Infra Behavior Testing Framework ...

Infrataster - Infra Behavior Testing Framework #oedo04

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