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require 'erb'
require 'ostruct'
require 'fileutils'
require 'json'
class Benchmarker
include FileUtils
def initialize(target, size)
@target = target
@size = size
@@benchmark_count ||= 0
end
def setup
require 'puppet'
config = File.join(@target, 'puppet.conf')
Puppet.initialize_settings(['--config', config])
end
def run(args=nil)
envs = Puppet.lookup(:environments)
50.times do
envs.clear('benchmarking')
node = Puppet::Node.new('testing', :environment => envs.get('benchmarking'))
Puppet::Resource::Catalog.indirection.find('testing', :use_node => node)
end
end
def benchmark_count
bc = @@benchmark_count
@@benchmark_count += 1
bc
end
def generate
environment = File.join(@target, 'environments', 'benchmarking')
modules = File.join(environment, 'modules')
templates = File.join('benchmarks', 'dependency_loading')
mkdir_p(modules)
mkdir_p(File.join(environment, 'manifests'))
module_count = @size * 2
modula = 10
render(File.join(templates, 'site.pp.erb'),
File.join(environment, 'manifests', 'site.pp'),
:size => module_count, :modula => modula)
module_count.times do |i|
module_name = "module#{i}"
module_base = File.join(modules, module_name)
manifests = File.join(module_base, 'manifests')
global_module_functions = File.join(module_base, 'lib', 'puppet', 'functions')
module_functions = File.join(global_module_functions, module_name)
mkdir_p(manifests)
mkdir_p(module_functions)
File.open(File.join(module_base, 'metadata.json'), 'w') do |f|
JSON.dump({
'name' => "tester-#{module_name}",
'author' => 'Puppet Labs tester',
'license' => 'Apache 2.0',
'version' => '1.0.0',
'summary' => 'Benchmark module',
'dependencies' => i > 0 ? dependency_to(i - 1) : [],
'source' => ''
}, f)
end
if (i + 1) % modula == 0
render(File.join(templates, 'module', 'init.pp.erb'),
File.join(manifests, 'init.pp'),
:name => module_name, :other => "module#{i - 1}")
else
render(File.join(templates, 'module', 'init.pp_no_call.erb'),
File.join(manifests, 'init.pp'),
:name => module_name)
end
function_template = File.join(templates, 'module', 'function.erb')
render(function_template, File.join(module_functions, "f#{module_name}.rb"), :name => module_name)
global_function_template = File.join(templates, 'module', 'global_function.erb')
render(global_function_template, File.join(global_module_functions, "f#{module_name}.rb"), :name => module_name)
end
render(File.join(templates, 'puppet.conf.erb'),
File.join(@target, 'puppet.conf'),
:location => @target)
end
def dependency_to(n)
[ {'name' => "tester-module#{n}", 'version_requirement' => '1.0.0'} ]
end
def render(erb_file, output_file, bindings)
site = ERB.new(File.read(erb_file))
site.filename = erb_file
File.open(output_file, 'w') do |fh|
fh.write(site.result(OpenStruct.new(bindings).instance_eval { binding }))
end
end
end
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