Class: Bosh::Release::Compiler

Inherits:
Object
  • Object
show all
Includes:
Template::PropertyHelper
Defined in:
lib/bosh/release/compiler.rb

Constant Summary collapse

OPTIONS = 
{
  "blobstore_options" => { "blobstore_path" => "/var/vcap/micro_bosh/data/cache" },
  "blobstore_provider" => "local",
  "base_dir"  => "/var/vcap",
  "platform_name" => "ubuntu",
  "agent_uri" => "https://vcap:vcap@localhost:6969"
}
AGENT_START_RETRIES = 
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Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Compiler

Returns a new instance of Compiler.



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# File 'lib/bosh/release/compiler.rb', line 18

def initialize(options)
  @options = OPTIONS.merge(options)
  @logger = Logger.new(@options["logfile"] || STDOUT)

  FileUtils.mkdir_p(File.join(@options["base_dir"], "packages"))
  bsc_provider = @options["blobstore_provider"]
  bsc_options = @options["blobstore_options"]
  @logger.info("Creating Blobstore client with #{bsc_provider} provider and options #{bsc_options}")
  @blobstore_client = Bosh::Blobstore::Client.safe_create(bsc_provider, bsc_options)
end

Instance Method Details

#add_default_properties(spec_properties, job_properties) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 269

def add_default_properties(spec_properties, job_properties)
  return unless job_properties

  job_properties.each_pair do |name, definition|
    unless definition["default"].nil?
      copy_property(spec_properties, spec_properties, name, definition["default"])
    end
  end
end

#apply ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 238

def apply
  connect_to_agent
  FileUtils.mkdir_p(File.join(@options["base_dir"], 'data/log'))
  # Stop services
  @logger.info("Stopping services")
  begin
    @agent.run_task(:stop)
  rescue => e
    @logger.warn("Ignoring error to stop services #{e.inspect}")
  end

  @spec = Psych.load_file(@options["apply_spec"])
  @logger.info("#{@spec.inspect}")
  update_bosh_spec
  @agent.run_task(:apply, @spec)

  @logger.info("Starting services")
  @agent.run_task(:start)
end

#apply_spec ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 38

def apply_spec
  File.join(@options["base_dir"], "micro/apply_spec.yml")
end

#apply_spec_job(job, job_path) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 131

def apply_spec_job(job, job_path)
  {
    "name" => job["name"],
    "version" => job["version"].to_s,
    "sha1" => job["sha1"],
    "blobstore_id" => @blobstore_client.create(File.new(job_path))
  }
end

#apply_spec_json ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 34

def apply_spec_json
  File.join(@options["base_dir"], "micro/apply_spec.json")
end

#cleanup ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 140

def cleanup
  FileUtils.rm_rf("#{@options["base_dir"]}/data/compile")
  FileUtils.rm_rf("#{@options["base_dir"]}/data/packages")
  FileUtils.rm_rf("#{@options["base_dir"]}/data/tmp")
  FileUtils.rm_rf("#{@options["base_dir"]}/packages")
end

#compile ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 57

def compile
  @logger.info("Compiling #{@options["manifest"]} with tarball #{@options["release"]}")
  connect_to_agent
  deployment_mf = Psych.load_file(File.expand_path(@options["manifest"]))
  @spec = prep_spec(deployment_mf)

  @packages = {}
  @spec["job"] = { "name" => @options[:job] }

  untar(@options["release"]) do |dir|
    release_mf = Psych.load_file("release.MF")
    jobs = []

    jobs_to_compile(@options[:job], deployment_mf).each do |spec_job|
      job = find_by_name(release_mf["jobs"], spec_job)
      job_path = File.expand_path("jobs/#{job["name"]}.tgz")
      jobs << apply_spec_job(job, job_path)

      if job["name"] == @options[:job]
        @spec["job"]["version"] = job["version"].to_s
        @spec["job"]["template"] = @options[:job]
        @spec["job"]["sha1"] = job["sha1"]
        @spec["job"]["blobstore_id"] = @blobstore_client.create(File.new(job_path))
      end

      untar(job_path) do
        job = Psych.load_file("job.MF")

        # add default job spec properties to apply spec
        add_default_properties(@spec["properties"], job["properties"])

        # Compile job packages
        compile_packages(dir, release_mf, job["packages"])
      end
    end

    @spec["job"]["templates"] = jobs
  end
  cleanup

  # save apply spec
  FileUtils.mkdir_p(File.dirname(apply_spec))
  if @options[:json]
    File.open(apply_spec_json, 'w') { |f| f.write(@spec.to_json) }
  else
    File.open(apply_spec, 'w') { |f| f.write(Psych.dump(@spec)) }
  end



  @spec["packages"]
rescue => e
  @logger.error("Error #{e.message}, #{e.backtrace.join("\n")}")
end

#compile_package(dir, package, name) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 190

def compile_package(dir, package, name)
  # return if package is already compiled
  return if @spec["packages"].has_key?(name)

  src = "#{dir}/packages/#{name}.tgz"
  version = package["version"]

  # push source package into blobstore
  file = File.new(src)
  id = @blobstore_client.create(file)

  sha1 = Digest::SHA1.file(src).hexdigest
  dependencies = {}
  package["dependencies"].each do |name|
    @logger.debug "dependency: #{name} = #{@spec["packages"][name]}"
    dependencies[name] = @spec["packages"][name]
  end

  result = @agent.run_task(:compile_package, id, sha1, name, "#{version}", dependencies)
  @logger.info("result is #{result}")

  # remove source package from blobstore
  @blobstore_client.delete(id)

  id = result["result"]["blobstore_id"]
  @logger.debug("stored package #{name} as #{id}")

  @spec["packages"][name] = {
    "name" => name,
    "version" => version.to_s,
    "sha1" => result["result"]["sha1"],
    "blobstore_id" => id
  }
end

#compile_packages(dir, manifest, packages) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 176

def compile_packages(dir, manifest, packages)
  packages.each do |name|
    package = find_package(manifest, name)
    compile_packages(dir, manifest, package["dependencies"]) if package["dependencies"]

    @logger.debug "compiling package #{name}"
    compile_package(dir, package, name)
  end
end

#connect_to_agent ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 42

def connect_to_agent
  num_tries = 0
  begin
    @agent = Bosh::Agent::Client.create(@options["agent_uri"], "user" => "vcap", "password" => "vcap")
    @agent.ping
  rescue => e
    num_tries += 1
    sleep 0.1
    # Dont retry forever
    retry if num_tries < AGENT_START_RETRIES
    @logger.warn("Error connecting to agent #{e.inspect}")
    raise
  end
end

#find_by_name(enum, name) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 112

def find_by_name(enum, name)
  result = enum.find { |j| j["name"] == name }
  if result
    result
  else
    raise "Could not find name #{name} in #{enum}"
  end
end

#find_package(manifest, name) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 186

def find_package(manifest, name)
  manifest["packages"].detect { |p| p["name"] == name }
end

#jobs_to_compile(name, manifest) ⇒ Object

Check manifest for job collocation



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# File 'lib/bosh/release/compiler.rb', line 122

def jobs_to_compile(name, manifest)
  compile_job = manifest["jobs"].find { |j| j["name"] == name } if manifest["jobs"]
  if compile_job
    compile_job["template"]
  else
    [name]
  end
end

#prep_spec(deployment) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 147

def prep_spec(deployment)
  spec = {}
  spec["deployment"] = "micro"
  spec["release"] = deployment["release"]
  spec["properties"] = deployment["properties"]
  spec["index"] = 0
  spec["packages"] = {}
  spec["configuration_hash"] = {}

  case @options[:cpi]
  when "vsphere", "vcloud"
    spec["networks"] = {"local" => {"ip" => "127.0.0.1"}}
  when "aws"
    spec["networks"] = {"type" => "dynamic"}
  when "google"
    spec["networks"] = {"type" => "dynamic"}
  when "openstack"
    spec["networks"] = {"type" => "dynamic"}
  when "azure"
    spec["networks"] = {"type" => "dynamic"}
  when "softlayer"
    spec["networks"] = {"type" => "dynamic"}
  else
    puts "WARNING: no CPI specified"
  end

  spec
end

#start ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 29

def start
  # Start the "compile" or "apply"
  send(@options["command"].to_sym)
end

#untar(file) ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 225

def untar(file)
  prev_dir = Dir.getwd
  dir = Dir.mktmpdir
  Dir.chdir(dir)
  @logger.debug("untaring #{file} into #{dir}")
  out = `tar xzf #{file} 2>&1`
  raise RuntimeError, "untar of #{file} failed: #{out}" unless $? == 0
  yield dir
ensure
  Dir.chdir(prev_dir)
  FileUtils.rm_rf dir
end

#update_bosh_spec ⇒ Object 



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# File 'lib/bosh/release/compiler.rb', line 258

def update_bosh_spec
  uri = URI.parse(@options["agent_uri"])
  ip = uri.host
  properties = @spec["properties"]
  properties["blobstore"]["address"] = ip
  properties["postgres"]["address"] = ip
  properties["director"]["address"] = ip
  properties["nats"]["address"] = ip
  @spec["properties"] = properties
end