Redis Cookbook

gistfile1.rb

# Set up our disk
include_recipe "data_volume::default"

data_volume "/var/lib/redis" do
  action :create
  size 16
  provider "data_volume"
  not_if "grep '/var/lib/redis' /etc/fstab > /dev/null"
end

# Find our hostname, see if we are a slave
node_hostname = Chef::Config[:node_name].gsub(/_/, '-')

if node_hostname.include? 'slave'
  masternode = search(:node, "role:*_redis_master")
  slaveof = true
  masterip = masternode[0][:ipaddress]
  masterport = '6379'
end

# Add the PPA, addition is idempotent
execute "install redis ppa" do
  command "apt-add-repository ppa:chris-lea/redis-server"
  user "root"  
end

execute "apt-get update" do
  command "apt-get update"
  user "root"
  ignore_failure true
end

package "redis-server" do
  action :install
end

execute "set redis permissions" do
  command "chown -R redis:redis /var/lib/redis"
end


# The variables here should all be set by using the name of the config option
# with the "-" replaced with "_".  If empty, they will use the redis defaults
template "/etc/redis/redis.conf" do
  source "redis.conf.erb"
  owner "root"
  group "root"
  variables(
    :slaveof => slaveof,
    :masterip => masterip,
    :masterport => masterport
  )
  mode 0644
  notifies :restart, "service[redis-server]"
end

service "redis-server" do
  supports :start => true, :stop => true, :restart => true
  action [ :enable, :start ]
end