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|
# File 'lib/capistrano-chef-solo.rb', line 11
def self.extended(configuration)
configuration.load {
namespace(:"chef-solo") {
desc("Setup chef-solo. (an alias of chef_solo:setup)")
task(:setup, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:setup")
}
desc("Uninstall chef-solo. (an alias of chef_solo:purge)")
task(:purge, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:purge")
}
desc("Run chef-solo. (an alias of chef_solo)")
task(:default, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:default")
}
desc("Show chef-solo version. (an alias of chef_solo:version)")
task(:version, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:version")
}
desc("Show chef-solo attributes. (an alias of chef_solo:attributes)")
task(:attributes, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:attributes")
}
desc("Show chef-solo attributes for role. (an alias of chef_solo:role_attributes)")
task(:role_attributes, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:role_attributes")
}
desc("Show chef-solo attributes for host. (an alias of chef_solo:host_attributes)")
task(:host_attributes, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:host_attributes")
}
}
namespace(:chef_solo) {
_cset(:chef_solo_use_bundler, true)
_cset(:chef_solo_version, "11.4.0")
_cset(:chef_solo_path) { capture("echo $HOME/chef").strip }
_cset(:chef_solo_cache_path) { File.join(chef_solo_path, "cache") }
_cset(:chef_solo_config_path) { File.join(chef_solo_path, "config") }
_cset(:chef_solo_cookbooks_path) { File.join(chef_solo_path, "cookbooks") }
_cset(:chef_solo_data_bags_path) { File.join(chef_solo_path, "data_bags") }
_cset(:chef_solo_roles_path) { File.join(chef_solo_path, "roles") }
_cset(:chef_solo_config_file) { File.join(chef_solo_config_path, "solo.rb") }
_cset(:chef_solo_attributes_file) { File.join(chef_solo_config_path, "solo.json") }
_cset(:chef_solo_bootstrap_user) {
if variables.key?(:chef_solo_user)
logger.info(":chef_solo_user has been deprecated. use :chef_solo_bootstrap_user instead.")
fetch(:chef_solo_user, user)
else
user
end
}
_cset(:chef_solo_bootstrap_password) { password }
_cset(:chef_solo_bootstrap_ssh_options) {
if variables.key?(:chef_solo_ssh_options)
logger.info(":chef_solo_ssh_options has been deprecated. use :chef_solo_bootstrap_ssh_options instead.")
fetch(:chef_solo_ssh_options, ssh_options)
else
ssh_options
end
}
_cset(:chef_solo_use_password) {
auth_methods = ssh_options.fetch(:auth_methods, []).map { |m| m.to_sym }
auth_methods.include?(:password) or auth_methods.empty?
}
_cset(:_chef_solo_bootstrapped, false)
def _activate_settings(servers=[])
if _chef_solo_bootstrapped
false
else
set(:_chef_solo_bootstrap_user, fetch(:user))
set(:_chef_solo_bootstrap_password, fetch(:password)) if chef_solo_use_password
set(:_chef_solo_bootstrap_ssh_options, fetch(:ssh_options))
establish_connections_to(servers) rescue nil
logger.info("entering chef-solo bootstrap mode. reconnect to servers as `#{chef_solo_bootstrap_user}'.")
teardown_connections_to(servers) rescue nil
set(:user, chef_solo_bootstrap_user)
set(:password, chef_solo_bootstrap_password) if chef_solo_use_password
set(:ssh_options, chef_solo_bootstrap_ssh_options)
set(:_chef_solo_bootstrapped, true)
true
end
end
def _deactivate_settings(servers=[])
if _chef_solo_bootstrapped
set(:user, _chef_solo_bootstrap_user)
set(:password, _chef_solo_bootstrap_password) if chef_solo_use_password
set(:ssh_options, _chef_solo_bootstrap_ssh_options)
set(:_chef_solo_bootstrapped, false)
establish_connections_to(servers) rescue nil
logger.info("leaving chef-solo bootstrap mode. reconnect to servers as `#{user}'.")
teardown_connections_to(servers) rescue nil
true
else
false
end
end
_cset(:chef_solo_bootstrap, false)
def connect_with_settings(&block)
if chef_solo_bootstrap
servers = find_servers
if block_given?
begin
activated = _activate_settings(servers)
yield
rescue Capistrano::ConnectionError => error
logger.info("could not connect with bootstrap settings: #{error}")
raise
ensure
_deactivate_settings(servers) if activated
end
else
_activate_settings(servers)
end
else
yield if block_given?
end
end
on(:load) do
before("rbenv:setup_default_environment") do
set(:rbenv_setup_default_environment, false) if chef_solo_bootstrap
end
end
desc("Setup chef-solo.")
task(:setup, :except => { :no_release => true }) {
connect_with_settings do
transaction do
install
end
end
}
desc("Uninstall chef-solo.")
task(:purge, :except => { :no_release => true }) {
connect_with_settings do
transaction do
uninstall
end
end
}
desc("Run chef-solo.")
task(:default, :except => { :no_release => true }) {
connect_with_settings do
setup
transaction do
update
invoke
end
end
}
def run_list(*recipes)
options = { :update => true }.merge(Hash === recipes.last ? recipes.pop : {})
update_p = options.delete(:update)
connect_with_settings do
setup
transaction do
update(options) if update_p
invoke(options.merge(:run_list => recipes))
end
end
end
_cset(:chef_solo_cmd, "chef-solo")
desc("Show chef-solo version.")
task(:version, :except => { :no_release => true }) {
connect_with_settings do
execute("--version")
end
}
desc("Show chef-solo attributes.")
task(:attributes, :except => { :no_release => true }) {
find_and_execute_task("chef_solo:host_attributes")
find_and_execute_task("chef_solo:role_attributes")
}
desc("Show chef-solo attributes for host.")
task(:host_attributes, :except => { :no_release => true }) {
if ENV.key?("HOST")
hosts = ENV.fetch("HOST", "").split(/\s*,\s*/)
else
hosts = find_servers_for_task(current_task).map { |server| server.host }
end
hosts.each do |host|
logger.debug("generating chef-solo attributes for host `#{host}'.")
STDOUT.puts(_json_attributes(_generate_host_attributes(host, :roles => role_names_for_host(ServerDefinition.new(host)))))
end
}
desc("Show chef-solo attributes for role.")
task(:role_attributes, :except => { :no_release => true }) {
if ENV.key?("ROLE")
roles = ENV.fetch("ROLE", "").split(/\s*,\s*/).map { |role| role.to_sym }
else
roles = find_servers_for_task(current_task).map { |server| role_names_for_host(server) }.flatten.uniq
end
roles.each do |role|
logger.debug("generating chef-solo attributes for role `#{role}'.")
STDOUT.puts(_json_attributes(_generate_role_attributes(role)))
end
}
_cset(:chef_solo_gem_dependencies) {{
fetch(:chef_solo_gem, "chef") => chef_solo_version,
}}
_cset(:chef_solo_gemfile) {
gemfile = []
gemfile << %{source "https://rubygems.org"}
chef_solo_gem_dependencies.each do |name, options|
if options.nil?
gemfile << %{gem #{name.dump}}
else
gemfile << %{gem #{name.dump}, #{options.inspect}}
end
end
gemfile.join("\n")
}
task(:install, :except => { :no_release => true }) {
set(:rbenv_install_bundler, true) if chef_solo_use_bundler
find_and_execute_task("rbenv:setup")
begin
version = execute("--version", :via => :capture)
installed = Regexp.new(Regexp.escape(chef_solo_version)) =~ version
rescue
installed = false
end
dirs = [ chef_solo_path, chef_solo_cache_path, chef_solo_config_path, chef_solo_roles_path ].uniq
run("mkdir -p #{dirs.map { |x| x.dump }.join(" ")}")
unless installed
if chef_solo_use_bundler
top.put(chef_solo_gemfile, File.join(chef_solo_path, "Gemfile"))
args = fetch(:chef_solo_bundle_options, [])
args << "--path=#{File.join(chef_solo_path, "bundle").dump}"
args << "--quiet"
run("cd #{chef_solo_path.dump} && #{bundle_cmd} install #{args.join(" ")}")
else
chef_solo_gem_dependencies.each do |name, options|
args = String === options ? "-v #{options.dump}" : "" rbenv.exec("gem install #{args} #{name.dump}", :path => chef_solo_path)
end
rbenv.rehash
end
end
}
task(:uninstall, :except => { :no_release => true }) {
if chef_solo_use_bundler
run("rm -f #{File.join(chef_solo_path, "Gemfile").dump} #{File.join(chef_solo_path, "Gemfile.lock").dump}")
run("rm -rf #{File.join(chef_solo_path, "bundle").dump}")
else
chef_solo_gem_dependencies.each do |name, options|
args = String === options ? "-v #{options.dump}" : "" rbenv.exec("gem uninstall -I -x #{args} #{name.dump}", :path => chef_solo_path)
end
end
}
def update(options={})
update_cookbooks(options)
update_data_bags(options)
update_attributes(options)
update_config(options)
end
def update_cookbooks(options={})
repos = _normalize_cookbooks(chef_solo_cookbooks)
_install_repos(:cookbooks, repos, chef_solo_cookbooks_path, options) do |name, tmpdir, variables|
deploy_cookbooks(name, tmpdir, variables, options)
end
end
def update_data_bags(options={})
repos = _normalize_data_bags(chef_solo_data_bags)
_install_repos(:data_bags, repos, chef_solo_data_bags_path, options) do |name, tmpdir, variables|
deploy_data_bags(name, tmpdir, variables, options)
end
end
def _install_repos(t, repos, destination, options={}, &block)
run("rm -rf #{destination.dump} && mkdir -p #{destination.dump}", options)
repos.each do |name, variables|
begin
tmpdir = capture("mktemp -d #{File.join("/tmp", "#{t}.XXXXXXXXXX").dump}", options).strip
run("rm -rf #{tmpdir.dump} && mkdir -p #{tmpdir.dump}", options)
yield name, tmpdir, variables
logger.debug("installing #{t} `#{name}' from #{tmpdir} to #{destination}.")
run("rsync -lrpt #{(tmpdir + "/").dump} #{destination.dump}", options)
ensure
run("rm -rf #{tmpdir.dump}", options)
end
end
end
_cset(:chef_solo_repository_cache) { File.expand_path("tmp") }
_cset(:chef_solo_repository_exclude, %w(.hg .git .svn))
_cset(:chef_solo_repository_variables) {{
:scm => :none,
:deploy_via => :copy_subdir,
:deploy_subdir => nil,
:repository => ".",
:copy_cache => nil,
}}
_cset(:chef_solo_cookbooks_exclude) { chef_solo_repository_exclude }
_cset(:chef_solo_cookbooks_variables) { chef_solo_repository_variables.merge(:copy_exclude => chef_solo_cookbooks_exclude) }
_cset(:chef_solo_cookbooks) { _default_repos(:cookbook, chef_solo_cookbooks_variables) }
_cset(:chef_solo_cookbooks_cache) { File.join(chef_solo_repository_cache, "cookbooks-cache") }
def _normalize_cookbooks(repos)
_normalize_repos(repos, chef_solo_cookbooks_cache, chef_solo_cookbooks_variables) { |name, variables|
variables[:deploy_subdir] ||= variables[:cookbooks] variables[:copy_exclude] ||= variables[:cookbooks_exclude]
}
end
_cset(:chef_solo_data_bags_exclude) { chef_solo_repository_exclude }
_cset(:chef_solo_data_bags_variables) { chef_solo_repository_variables.merge(:copy_exclude => chef_solo_data_bags_exclude) }
_cset(:chef_solo_data_bags) { _default_repos(:data_bag, chef_solo_data_bags_variables) }
_cset(:chef_solo_data_bags_cache) { File.join(chef_solo_repository_cache, "data_bags-cache") }
def _normalize_data_bags(repos)
_normalize_repos(repos, chef_solo_data_bags_cache, chef_solo_data_bags_variables) { |name, variables|
variables[:deploy_subdir] ||= variables[:data_bags] variables[:copy_exclude] ||= variables[:data_bags_exclude]
}
end
def _default_repos(singular, variables={}, &block)
plural = "#{singular}s"
variables = variables.dup
variables[:scm] = fetch("chef_solo_#{plural}_scm".to_sym) if exists?("chef_solo_#{plural}_scm".to_sym)
variables[:deploy_subdir] = fetch("chef_solo_#{plural}_subdir".to_sym, File.join("config", plural))
variables[:repository] = fetch("chef_solo_#{plural}_repository".to_sym) if exists?("chef_solo_#{plural}_repository".to_sym)
variables[:revision] = fetch("chef_solo_#{plural}_revision".to_sym) if exists?("chef_solo_#{plural}_revision".to_sym)
if exists?("chef_solo_#{singular}_name".to_sym)
name = fetch("chef_solo_#{singular}_name".to_sym) variables["#{singular}_name".to_sym] = name
else
name = fetch("chef_solo_#{plural}_name".to_sym, application) end
{ name => variables }
end
def _normalize_repos(repos, cache_path, default_variables={}, &block)
normalized = repos.map { |name, variables|
variables = default_variables.merge(variables)
variables[:application] ||= name
if variables[:scm] != :none
variables[:copy_cache] ||= File.expand_path(name, cache_path)
end
yield name, variables
[name, variables]
}
Hash[normalized]
end
def deploy_cookbooks(name, destination, variables={}, options={})
final_destination = variables.key?(:cookbook_name) ? File.join(destination, variables[:cookbook_name]) : destination
_deploy_repo(:cookbooks, name, final_destination, variables, options)
end
def deploy_data_bags(name, destination, variables={}, options={})
final_destination = variables.key?(:data_bag_name) ? File.join(destination, variables[:data_bag_name]) : destination
_deploy_repo(:data_bags, name, final_destination, variables, options)
end
def _deploy_repo(t, name, destination, variables={}, options={})
begin
releases_path = capture("mktemp -d /tmp/releases.XXXXXXXXXX", options).strip
release_path = File.join(releases_path, release_name)
run("rm -rf #{releases_path.dump} && mkdir -p #{releases_path.dump}", options)
c = _middle_copy(top) c.instance_eval do
set(:deploy_to, File.dirname(releases_path))
set(:releases_path, releases_path)
set(:release_path, release_path)
set(:revision) { source.head }
set(:source) { ::Capistrano::Deploy::SCM.new(scm, self) }
set(:real_revision) { source.local.query_revision(revision) { |cmd| with_env("LC_ALL", "C") { run_locally(cmd) } } }
set(:strategy) { ::Capistrano::Deploy::Strategy.new(deploy_via, self) }
variables.each do |key, val|
if val.nil?
unset(key)
else
set(key, val)
end
end
from = File.join(repository, fetch(:deploy_subdir, "/"))
to = destination
logger.debug("retrieving #{t} `#{name}' from #{from} (scm=#{scm}, via=#{deploy_via}) to #{to}.")
strategy.deploy!
end
run("rsync -lrpt #{(release_path + "/").dump} #{destination.dump}", options)
ensure
run("rm -rf #{releases_path.dump}", options)
end
end
def _middle_copy(object)
o = object.clone
object.instance_variables.each do |k|
v = object.instance_variable_get(k)
o.instance_variable_set(k, v ? v.clone : v)
end
o
end
_cset(:chef_solo_config) {
(<<-EOS).gsub(/^\s*/, "")
file_cache_path #{chef_solo_cache_path.dump}
cookbook_path #{chef_solo_cookbooks_path.dump}
data_bag_path #{chef_solo_data_bags_path.dump}
role_path #{chef_solo_roles_path.dump}
EOS
}
def update_config(options={})
top.put(chef_solo_config, chef_solo_config_file, options)
end
def _merge_attributes!(a, b)
f = lambda { |key, val1, val2|
case val1
when Array
val1 + val2
when Hash
val1.merge(val2, &f)
else
val2
end
}
a.merge!(b, &f)
end
def _json_attributes(x)
JSON.send(fetch(:chef_solo_pretty_json, true) ? :pretty_generate : :generate, x)
end
_cset(:chef_solo_capistrano_attributes) {
attributes = variables.reject { |key, value|
excluded = chef_solo_capistrano_attributes_exclude.find { |x| x === key }
included = chef_solo_capistrano_attributes_include.find { |x| x === key }
excluded or (not included and value.respond_to?(:call))
}
Hash[attributes.map { |key, value| [key, fetch(key, nil)] }]
}
_cset(:chef_solo_capistrano_attributes_include, [
:application, :deploy_to, :rails_env, :latest_release,
:releases_path, :shared_path, :current_path, :release_path,
])
_cset(:chef_solo_capistrano_attributes_exclude, [:logger, /password/, :source, :strategy])
_cset(:chef_solo_attributes, {})
_cset(:chef_solo_run_list, [])
_cset(:chef_solo_host_attributes, {})
_cset(:chef_solo_host_run_list, {})
def _generate_host_attributes(host, options={})
roles = [ options.delete(:roles) ].flatten.compact.uniq
attributes = chef_solo_capistrano_attributes.dup
_merge_attributes!(attributes, chef_solo_attributes)
_merge_attributes!(attributes, chef_solo_host_attributes.fetch(host, {}))
_merge_attributes!(attributes, {"run_list" => chef_solo_run_list})
_merge_attributes!(attributes, {"run_list" => roles.map { |role| "role[#{role}]" } }) unless roles.empty?
_merge_attributes!(attributes, {"run_list" => chef_solo_host_run_list.fetch(host, [])})
attributes
end
_cset(:chef_solo_role_attributes, {})
_cset(:chef_solo_role_run_list, {})
def _generate_role_attributes(role, options={})
attributes = {
"name" => role,
"chef_type" => "role",
"json_class" => "Chef::Role",
}
_merge_attributes!(attributes, {"default_attributes" => chef_solo_role_attributes.fetch(role, {})})
_merge_attributes!(attributes, {"run_list" => chef_solo_role_run_list.fetch(role, [])})
attributes
end
def update_attributes(options={})
roles.each_key.each do |role|
logger.debug("updating chef-solo role attributes for #{role}.")
attributes = _generate_role_attributes(role)
top.put(_json_attributes(attributes), File.join(chef_solo_roles_path, "#{role}.json"), options)
end
servers = find_servers_for_task(current_task)
servers.each do |server|
logger.debug("updating chef-solo host attributes for #{server.host}.")
attributes = _generate_host_attributes(server.host, :roles => role_names_for_host(server))
top.put(_json_attributes(attributes), chef_solo_attributes_file, options.merge(:hosts => server.host))
end
end
def invoke(options={})
options = options.dup
run_list = [ options.delete(:run_list) ].flatten.compact
logger.debug("invoking chef-solo.")
args = fetch(:chef_solo_options, [])
args += ["-c", chef_solo_config_file]
args += ["-j", chef_solo_attributes_file]
args += ["-o", run_list.join(",")] unless run_list.empty?
execute(args, options.merge(:via => :sudo))
end
def execute(args, options={})
if chef_solo_use_bundler
command = "bundle exec #{chef_solo_cmd}"
else
command = chef_solo_cmd
end
rbenv.exec("#{command} #{[ args ].flatten.compact.map { |x| x.dump }.join(" ")}", options.merge(:path => chef_solo_path))
end
}
}
end
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