Introduce serverspec to Linux

Introduce serverspec to Linux environment.

Building a Linux environment

Build a Linux environment. https://qiita.com/mkuser9/items/079cc4244821c8e220c2

install ruby

serverspec requires ruby.

console

$ sudo yum -y install git
$ sudo yum install -y gcc gcc-c++ libyaml-devel libffi-devel libxml2 libxslt libxml2-devel libslt-devel
$ sudo yum install git-core
$ git clone https://github.com/rbenv/rbenv.git ~/.rbenv
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ exec $SHELL -l
$ source ~/.bash_profile
$ git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
$ sudo yum install -y bzip2 gdbm-devel openssl-devel libffi-devel libyaml-devel ncurses-devel readline-devel zlib-devel
$ RUBY_CONFIGURE_OPTS=--disable-install-doc ~/.rbenv/bin/rbenv install 2.6.3
$ rbenv global 2.6.3 && rbenv rehash

Creating a Gemfile

Create a Gemfile and add gem.

console

$ sudo vi Gemfile

Gemfile

source "https://rubygems.org"

gem 'serverspec'
gem 'rake'

console

$ bundle install

Install serverspec

Install serverspec with the following command.

console

$ gem install serverspec

Creating a sample test

console

$ serverspec-init

Select OS type:

  1) UN*X
  2) Windows

Select number: 1

Select a backend type:

  1) SSH
  2) Exec (local)

Select number: 2

Vagrant instance y/n: n
Input target host name: www.example.jp
 + spec/
 + spec/www.example.jp/
 + spec/www.example.jp/sample_spec.rb
 + spec/spec_helper.rb
 + Rakefile
 + .rspec

Describe the test content

The test file is generated in spec / localhost / sample_spec.rb, so modify the test file according to the contents of the test.

console

vi spec/localhost/sample_spec.rb

Write the test in sample_spec.rb.

sample_spec.rb(sample)

require 'spec_helper'

describe "Testing for git" do
  context "Environmental setting" do
    describe package('git'), :if => os[:family] == 'redhat' do
      it "Installed" do
        expect be_installed
      end
    end
  end
end

describe "git-Testing for core" do
  context "Environmental setting" do
    describe package('git-core'), :if => os[:family] == 'redhat' do
      it "Installed" do
        expect be_installed
      end
    end
  end
end

describe "Testing for httpd" do
  context "Environmental setting" do
    describe package('httpd'), :if => os[:family] == 'redhat' do
      it "Installed" do
        expect be_installed
      end

      it "Enabled" do
        expect be_enabled
      end

      it "Running" do
        expect be_running
      end
    end
  end
end

describe "Test for port" do
  context "Environmental setting" do
    describe port(80) do
      it "Being listened to" do
        expect be_listening 
      end
    end
  end
end

The initial state of sample_spec.rb.

sample_spec.rb(default)

require 'spec_helper'

describe package('httpd'), :if => os[:family] == 'redhat' do
  it { should be_installed }
end

describe package('apache2'), :if => os[:family] == 'ubuntu' do
  it { should be_installed }
end

describe service('httpd'), :if => os[:family] == 'redhat' do
  it { should be_enabled }
  it { should be_running }
end

describe service('apache2'), :if => os[:family] == 'ubuntu' do
  it { should be_enabled }
  it { should be_running }
end

describe service('org.apache.httpd'), :if => os[:family] == 'darwin' do
  it { should be_enabled }
  it { should be_running }
end

describe port(80) do
  it { should be_listening }
end

Run the test

Run the test with the following command.

console

$ rake spec