Created
November 23, 2011 23:14
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My First Ruby Class
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require 'chef/shef/ext' | |
require 'net/ssh' | |
require 'net/ssh/multi' | |
require 'readline' | |
module IchangeKnifePlugins | |
PROJECT_HOME = "/home/ubuntu/ichange.com" | |
SYMFONY_BIN = "#{PROJECT_HOME}/skylight/symfony" | |
DEFAULT_ROLES_LIST = [ "loadbalancer", "webserver", "taskserver" ] | |
class Deploy < Chef::Knife | |
banner "knife deploy ENVIRONMENT" | |
option :identity, | |
:short => '-i IDENTITY_FILE', | |
:long => '--identity IDENTITY_FILE', | |
:description => 'Path to SSH identity file' | |
option :hotfix, | |
:short => '-H CHANGE_REF', | |
:long => '--hotfix CHANGE_REF', | |
:description => 'Push an individual changeset as a hotfix, rather than a full update' | |
def run | |
unless name_args.size == 1 | |
ui.fatal "You must specify an environment to deploy" | |
show_usage | |
exit 1 | |
end | |
Shef::Extensions.extend_context_object(self) | |
environment = name_args.first | |
if config[:identity] | |
@identity = config[:identity] | |
end | |
if config[:hotfix] | |
@hotfix = config[:hotfix] | |
end | |
if environment == "production" | |
@version = increment_version | |
end | |
DEFAULT_ROLES_LIST.each do |role| | |
update(environment, role) | |
end | |
end | |
def send_ssh(node, command) | |
knife_ssh = Chef::Knife::Ssh.new | |
if @identity | |
knife_ssh.config[:identity_file] = @identity # e.g. "~/ichangekey.pem" | |
end | |
knife_ssh.config[:attribute] = "ec2.public_hostname" | |
knife_ssh.config[:ssh_user] = "ubuntu" | |
query = "name:#{node.name}" | |
knife_ssh.name_args = [query, command] | |
knife_ssh.run | |
end | |
def increment_version | |
version_db_item = data_bag_item('configuration', 'version') | |
version = version_db_item['version'].to_i | |
version = version += 1 | |
version_db_item['version'] = version.to_s | |
version_db_item.save | |
return version | |
end | |
def update(environment, role) | |
nodes.find("roles:#{role} AND chef_environment:#{environment}") do |ws| | |
puts "Updating #{ws.name}" | |
send_ssh(ws, "#{SYMFONY_BIN} project:disable frontend prod") | |
send_ssh(ws, "sudo chef-client") | |
if environment == "production" | |
send_ssh(ws, "git --git-dir=#{PROJECT_HOME} tag #{@version}") | |
end | |
send_ssh(ws, "#{SYMFONY_BIN} project:enable frontend prod") | |
end | |
end | |
def hotfix(environment, role) | |
end | |
end | |
end |
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Haha, I just clicked on this from a google search I did. Looked up and saw it was yours.