Chef Installation Guide
Thursday, June 02, 2011
1:38 PM
This document targets for Ruby 1.8.7 + RubyGems 1.6.2 + Chef 0.10.0., it's based on the Chef Wiki and contains adjustments to fit into Citi's environment:
http://wiki.opscode.com/display/chef/Bootstrap+Chef+RubyGems+Installation
http://wiki.opscode.com/display/chef/Bootstrap+Client+RubyGems
1. Prerequisite:
Verify the server has Fully Qualified Domain Name.
Login as root.
2. Install Ruby / On Red Hat and CentOS (Version 5 only) :
For RHEL 5 x86-64:
cd /tmp
export http_proxy=http://webproxy.wlb2.nam.nsroot.net:8080
wget http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
rpm -i epel-release-5-4.noarch.rpm
wget -O /etc/yum.repos.d/aegis.repo http://rpm.aegisco.com/aegisco/el5/aegisco.repo
export http_proxy=
Go to /etc/yum.repos.d, add proxy definitions to all repositories in aegis.repo, epel.repo and epel-testing.repo:
proxy=http://webproxy.wlb2.nam.nsroot.net:8080
Create RubyGems configuration file (~/.gemrc):
gem: --no-ri --no-rdoc --http-proxy http://webproxy.wlb2.nam.nsroot.net:8080
Create Git configuration file (~/.gitconfig):
[user]
name =
email =
[core]
autocrlf = true
safecrlf = false
[http]
proxy = http://webproxy.wlb2.nam.nsroot.net:8080
Install Ruby and dependencies:
cd /tmp
yum -y install gecode gecode-devel ruby rubygems ruby-static git gcc-c++ make
gem install rake rake-compiler
gem install rspec -v 2.5.0
git clone http://github.com/manderson26/dep-selector.git
cd dep-selector
rake compile
rake spec
3. Install Chef and Ohai:
gem install chef chef-server chef-server-api chef-server chef-solr chef-server-webui ohai
4. Config Chef Solo:
Edit /etc/chef/solo.rb:
file_cache_path "/tmp/chef-solo"
cookbook_path "/tmp/chef-solo/cookbooks"
5. Download cookbooks for bootstrap installation:
cd /tmp
mkdir -p /tmp/chef-solo/cookbooks
export http_proxy=http://webproxy.wlb2.nam.nsroot.net:8080
wget http://s3.amazonaws.com/chef-solo/bootstrap-latest.tar.gz
tar zxvf bootstrap-latest.tar.gz
cp -pr cookbooks/* /tmp/chef-solo/cookbooks
6. Bootstrap Chef Server:
Edit ~/chef.json to create server configurations:
{
"chef_server": {
"server_url": "http://localhost:4000",
"webui_enabled": true,
"init_style": "init"
},
"run_list": [ "recipe[chef-server::rubygems-install]" ]
}
Open /tmp/chef-solo/cookbooks/chef-server/recipes/rubygems-install.rb and comment the line below:
when "centos","redhat","fedora"
include_recipe "couchdb"
include_recipe "java"
include_recipe "rabbitmq::chef"
# include_recipe "gecode"
Start server bootstrap installation:
chef-solo -c /etc/chef/solo.rb -j ~/chef.json
7. Verify That All Components are Running:
Follow the instruction from wiki.
8. Configure the Command Line Client:
Follow the instruction from wiki.
9. Verify Your Knife Client Configuration:
Follow the instruction from wiki.
10. Create a Knife Client for Your Laptop/Desktop:
Follow the instruction from wiki.
11. Bootstrap Chef Client:
Login as root on client.
Edit ~/chef.json:
{
"chef_client": {
"init_style": "init"
},
"run_list": [ "recipe[chef-client::delete_validation]",
"recipe[chef-client::config]",
"recipe[chef-client]" ]
}
Start client bootstrap installation:
chef-solo -c /etc/chef/solo.rb -j ~/chef.json
Update server url in /etc/chef/client.rb:
chef_server_url "http://cloudmwdc80.nam.nsroot.net:4000"
Update interval (second) in /etc/sysconfig/chef-client:
INTERVAL=60
In order to register with the server, we need to copy validation certificate from the server.
scp cloudmwdc80:/etc/chef/validation.pem /etc/chef
Restart chef-client service, the chef client will synchronize with the server every 60 seconds.
service chef-client restart
12. Verify Client/Server Installation:
Follow the cookbook quick start to verify installation:
