sddevops-custom-resources

Create a new cookbook

chef generate cookbook sddevops-custom-resources

Make resources directory

cd sddevops-custom-resources
mkdir resources

Define properties and name resource

#resources/website.rb
property :instance_name, String, name_property: true
property :port, Fixnum, required: true

provides :mysite

Usage in recipe

mysite 'foo' do
  port 81
  action :create
end

create action (website.rb)

action :create do
  package 'httpd' do
    action :install
  end
...

create action continued (website.rb)

...
  template "/etc/httpd/conf.d/httpd-#{instance_name}.conf" do
    source "httpd.conf.erb"
    variables(
      :instance_name => instance_name,
      :port => port
    )
    owner 'root'
    group 'root'
    mode '0644'
    action :create
    notifies :restart, 'service[httpd]'
  end

  directory "/var/www/vhosts/#{instance_name}" do
    recursive true
    owner 'root'
    group 'root'
    mode '0755'
    action :create
    notifies :restart, 'service[httpd]'
  end
...

finish website.rb

...
  file "/var/www/vhosts/#{instance_name}/index.html" do
    mode '0644'
    content "Ohai! This is the #{instance_name} site running on port #{port}."
    action :create
  end

  service 'httpd' do
    action [:enable, :start]
  end
end

complete resource

website.rb

create templates directory

mkdir templates

templates/httpd.conf.erb

Listen <%= @port %>

<VirtualHost *:<%= @port %>>
    DocumentRoot "/var/www/vhosts/<%= @instance_name %>"
    ServerName <%= node['fqdn'] %>
</VirtualHost>

use resource in recipe - default.rb

#recipes/default.rb
mysite 'foo' do
  port 81
  action :create
end

quick look at .kitchen.yml, remove ubuntu

  - name: ubuntu-14.04  <--- take this out
  - name: centos-7.1

ok... let's see if this runs

chef install (chefdk 0.9+)
kitchen converge

manual verification

kitchen login
curl localhost:81

manual tests aren't cool, let's serverspec this

# test/integration/default/serverspec/default_spec.rb
require 'spec_helper'

describe port(81) do
  it { should be_listening }
end

describe port(82) do
  it { should be_listening }
end

run tests!

kitchen verify

add site on port 82 to make test pass - recipes/default.rb

...
mysite 'bar' do
  port 82
end

converge and test

kitchen converge
kitchen verify

will this work in centos 6.7? - .kitchen.yml

  - name: centos-6.7 <--- add this
  - name: centos-7.1

test everything!

kitchen test -c