L17 – Adding Platform Support

on November 17, 2016 at 1:36 pm
Posted In: CHEF Full Tutorial

Two clients running different OS’s, Ubuntu and CentOS

Enable root login on all systems for bootstrap

Ubuntu:

vi /etc/sshd_config

enable root login

service ssh restart

$ knife bootstarp a.b.com -x root -P -N

$ knife node run_list add nodename “recipe[apache]”

$ knife node run_list add nodename -b “recipe[apache]” “recipe[security]”

Now we need to modify the recipes to work for ubunto and centos

vi cookbooks/apache/attributes/default.rb

default[“apache”][“sites”][“nodename1”] = { “site_title” => “SITE ONE”, “port” => 80, “domain” =>  “nodename1.domain.com” }
default[“apache”][“sites”][“nodename2”] = { “site_title” => “SITE TWO”, “port” => 80, “domain” => “nodename2.domain.com” }
default[“apache”][“sites”][“nodename3”] = { “site_title” => “SITE THREE”, “port” => 80, “domain” => “nodename3.domain.com” }
case node[“platform”]
when “centos”
default[“apache”][“package”] = “httpd”
when “ubuntu”
default[“apache”][“package”] = “apache2”
end

vi cookbooks/apache/recipes/default.rb

 

#

# Cookbook Name:: apache
# Recipe:: default
#
# Copyright 2016, YOUR_COMPANY_NAME
#
# All rights reserved – Do Not Redistribute
#
if node[“platform”] == “ubuntu”
execute “apt-get update -y” do
end
end
package “apache2” do
package_name node[“apache”][“package”]
end
node[“apache”][“sites”].each do |sitename, data|
document_root = “/var/www/#{sitename}”
directory document_root do
mode “0755”
recursive true
end
if node[“platform”] == “ubuntu”
template_location = “/etc/apache2/sites-enabled/#{sitename}.conf”
elsif node[“platform”] == “centos”
template_location = “/etc/httpd/conf.d/#{sitename}.conf”
elsif node[“platform”] == “oracle”
template_location = “/etc/httpd/conf.d/#{sitename}.conf”
end
template template_location do
source “vhost.erb”
mode “0644”
variables ({
:document_root=>document_root,
:port=>data[“port”],
:domain=>data[“domain”]
})
notifies :restart, “service[httpd]”
end
template “/var/www/#{sitename}/index.html” do
source “index.html.erb”
mode “0644”
variables ({
:site_title=>data[“site_title”],
:tobewritten=>”To Be Written”
})
notifies :restart, “service[httpd]”
end
end
execute “rm  /etc/httpd/conf.d/welcome.conf” do
only_if do
File.exist?(“/etc/httpd/conf.d/welcome.conf”)
end
notifies :restart, “service[httpd]”
end
execute “rm /etc/httpd/conf.d/README” do
only_if do
File.exist?(“/etc/httpd/conf.d/README”)
end
notifies :restart, “service[httpd]”
end
service “httpd” do
service_name node[“apache”][“package”]
action [:enable, :start]
end
include_recipe “php::default”