Class: Bosh::Director::Jobs::UpdateRelease

Inherits:
BaseJob show all
Includes:
DownloadHelper, LockHelper
Defined in:
lib/bosh/director/jobs/update_release.rb

Instance Attribute Summary collapse

Attributes inherited from BaseJob

#task_id

Class Method Summary collapse

Instance Method Summary collapse

Methods included from DownloadHelper

#download_remote_file

Methods included from LockHelper

#with_compile_lock, #with_deployment_lock, #with_release_lock, #with_release_locks, #with_stemcell_lock

Methods inherited from BaseJob

#begin_stage, #dns_manager, #event_manager, #logger, perform, #result_file, schedule_message, #single_step_stage, #task_cancelled?, #task_checkpoint, #track_and_log, #username

Constructor Details

#initialize(release_path, options = {}) ⇒ UpdateRelease

Returns a new instance of UpdateRelease.

Parameters:

  • release_path (String) —

    local path or remote url of the release archive

  • options (Hash) (defaults to: {}) —

    Release update options



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# File 'lib/bosh/director/jobs/update_release.rb', line 24

def initialize(release_path, options = {})
  if options['remote']
    # file will be downloaded to the release_path
    @release_path = File.join(Dir.tmpdir, "release-#{SecureRandom.uuid}")
    @release_url = release_path
    @sha1 = options['sha1']
  else
    # file already exists at the release_path
    @release_path = release_path
  end

  @rebase = !!options['rebase']
  @fix = !!options['fix']
end

Instance Attribute Details

#release_model ⇒ Object

Returns the value of attribute release_model.



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# File 'lib/bosh/director/jobs/update_release.rb', line 15

def release_model
  @release_model
end

#release_path ⇒ Object (readonly)

Returns the value of attribute release_path.



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# File 'lib/bosh/director/jobs/update_release.rb', line 16

def release_path
  @release_path
end

#release_url ⇒ Object (readonly)

Returns the value of attribute release_url.



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# File 'lib/bosh/director/jobs/update_release.rb', line 16

def release_url
  @release_url
end

#sha1 ⇒ Object (readonly)

Returns the value of attribute sha1.



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# File 'lib/bosh/director/jobs/update_release.rb', line 16

def sha1
  @sha1
end

Class Method Details

.job_type ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 18

def self.job_type
  :update_release
end

Instance Method Details

#backfill_source_for_packages(packages, release_dir) ⇒ boolean

Returns true if sources were added to at least one package; false if the call had no effect.

Returns:

  • (boolean) —

    true if sources were added to at least one package; false if the call had no effect.



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# File 'lib/bosh/director/jobs/update_release.rb', line 286

def backfill_source_for_packages(packages, release_dir)
  return false if packages.empty?

  had_effect = false
  single_step_stage("Processing #{packages.size} existing package#{"s" if packages.size > 1}") do
    packages.each do |package, package_meta|
      package_desc = "#{package.name}/#{package.version}"
      logger.info("Adding source for package '#{package_desc}'")
      had_effect |= save_package_source_blob(package, package_meta, release_dir)
      package.save
    end
  end

  had_effect
end

#compiled_packages_matching(package, stemcell) ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 406

def compiled_packages_matching(package, stemcell)
  other_compiled_packages = []
  dependency_key = dependency_key(package)
  packages = Models::Package.where(fingerprint: package.fingerprint).all
  packages.each do |pkg|
    other_compiled_packages.concat(find_compiled_packages(pkg.id, stemcell[:os], stemcell[:version], dependency_key).all)
  end
  other_compiled_packages
end

#compiled_release ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 119

def compiled_release
  raise "Don't know what kind of release we have until verify_release is called" unless @manifest
  @compiled_release
end

#create_compiled_package(package, stemcell_os, stemcell_version, release_dir, other_compiled_package) ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 416

def create_compiled_package(package, stemcell_os, stemcell_version, release_dir, other_compiled_package)
  if other_compiled_package.nil?
    tgz = File.join(release_dir, 'compiled_packages', "#{package.name}.tgz")
    validate_tgz(tgz, "#{package.name}.tgz")
    blobstore_id = BlobUtil.create_blob(tgz)
    sha1 = Digest::SHA1.file(tgz).hexdigest
  else
    blobstore_id = BlobUtil.copy_blob(other_compiled_package.blobstore_id)
    sha1 = other_compiled_package.sha1
  end

  compiled_package = Models::CompiledPackage.new
  compiled_package.blobstore_id = blobstore_id
  compiled_package.sha1 = sha1
  release_version_model_dependency_key = dependency_key(package)
  if release_version_model_dependency_key != CompiledRelease::Manifest.new(@manifest).dependency_key(package.name)
    raise ReleasePackageDependencyKeyMismatch, "The uploaded release contains package dependencies in '#{package.name}' that do not match database records."
  end
  compiled_package.dependency_key = release_version_model_dependency_key

  compiled_package.build = Models::CompiledPackage.generate_build_number(package, stemcell_os, stemcell_version)
  compiled_package.package_id = package.id

  compiled_package.stemcell_os = stemcell_os
  compiled_package.stemcell_version = stemcell_version

  compiled_package.save
end

#create_compiled_packages(all_compiled_packages, release_dir) ⇒ boolean

Returns true if at least one job was created; false if the call had no effect.

Returns:

  • (boolean) —

    true if at least one job was created; false if the call had no effect.



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# File 'lib/bosh/director/jobs/update_release.rb', line 369

def create_compiled_packages(all_compiled_packages, release_dir)
  return false if all_compiled_packages.nil?

  event_log_stage = Config.event_log.begin_stage('Creating new compiled packages', all_compiled_packages.size)
  had_effect = false

  all_compiled_packages.each do |compiled_package_spec|
    package = compiled_package_spec[:package]
    stemcell = Models::CompiledPackage.split_stemcell_os_and_version(compiled_package_spec[:package_meta]['stemcell'])
    compiled_pkg_tgz = File.join(release_dir, 'compiled_packages', "#{package.name}.tgz")

    stemcell_os = stemcell[:os]
    stemcell_version = stemcell[:version]

    existing_compiled_packages = find_compiled_packages(package.id, stemcell_os, stemcell_version, dependency_key(package))

    if existing_compiled_packages.empty?
      package_desc = "#{package.name}/#{package.version} for #{stemcell_os}/#{stemcell_version}"
      event_log_stage.advance_and_track(package_desc) do
        other_compiled_packages = compiled_packages_matching(package, stemcell)
        if @fix
          other_compiled_packages.each do |other_compiled_package|
            fix_compiled_package(other_compiled_package, compiled_pkg_tgz)
          end
        end
        create_compiled_package(package, stemcell_os, stemcell_version, release_dir, other_compiled_packages.first)
        had_effect = true
      end
    elsif @fix
      existing_compiled_package = existing_compiled_packages.first
      fix_compiled_package(existing_compiled_package, compiled_pkg_tgz)
    end
  end

  had_effect
end

#create_job(job_meta, release_dir) ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 585

def create_job(job_meta, release_dir)
  release_job = ReleaseJob.new(job_meta, @release_model, release_dir, logger)
  logger.info("Creating job template '#{job_meta['name']}/#{job_meta['version']}' " +
      'from provided bits')
  release_job.update(Models::Template.new())
end

#create_jobs(jobs, release_dir) ⇒ boolean

Returns true if at least one job was created; false if the call had no effect.

Returns:

  • (boolean) —

    true if at least one job was created; false if the call had no effect.



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# File 'lib/bosh/director/jobs/update_release.rb', line 569

def create_jobs(jobs, release_dir)
  return false if jobs.empty?

  event_log_stage = Config.event_log.begin_stage("Creating new jobs", jobs.size)
  jobs.each do |job_meta|
    job_desc = "#{job_meta["name"]}/#{job_meta["version"]}"
    event_log_stage.advance_and_track(job_desc) do
      logger.info("Creating new template '#{job_desc}'")
      template = create_job(job_meta, release_dir)
      register_template(template)
    end
  end

  true
end

#create_package(package_meta, release_dir) ⇒ void

This method returns an undefined value.

Creates package in DB according to given metadata

Parameters:

  • package_meta (Hash) —

    Package metadata

  • release_dir (String) —

    local path to the unpacked release



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# File 'lib/bosh/director/jobs/update_release.rb', line 449

def create_package(package_meta, release_dir)
  name, version = package_meta['name'], package_meta['version']

  package_attrs = {
      :release => @release_model,
      :name => name,
      :sha1 => nil,
      :blobstore_id => nil,
      :fingerprint => package_meta['fingerprint'],
      :version => version
  }

  package = Models::Package.new(package_attrs)
  package.dependency_set = package_meta['dependencies']

  save_package_source_blob(package, package_meta, release_dir) unless @compiled_release

  package.save
end

#create_packages(package_metas, release_dir) ⇒ Array<Hash>, boolean

Creates packages using provided metadata

Parameters:

  • packages (Array<Hash>) —

    Packages metadata

  • release_dir (String) —

    local path to the unpacked release

Returns:

  • (Array<Hash>, boolean) —

    array of package models and their metadata, empty if no packages were changed.



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# File 'lib/bosh/director/jobs/update_release.rb', line 339

def create_packages(package_metas, release_dir)
  if package_metas.empty?
    return []
  end

  package_refs = []

  event_log_stage = Config.event_log.begin_stage("Creating new packages", package_metas.size)

  package_metas.each do |package_meta|
    package_desc = "#{package_meta["name"]}/#{package_meta["version"]}"
    package = nil
    event_log_stage.advance_and_track(package_desc) do
      logger.info("Creating new package '#{package_desc}'")
      package = create_package(package_meta, release_dir)
      register_package(package)
    end

    if @compiled_release
      package_refs << {
        package: package,
        package_meta: package_meta,
      }
    end
  end

  package_refs
end

#download_remote_release ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 66

def download_remote_release
  download_remote_file('release', release_url, release_path)
end

#extract_release ⇒ void

This method returns an undefined value.

Extracts release tarball



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# File 'lib/bosh/director/jobs/update_release.rb', line 72

def extract_release
  release_dir = Dir.mktmpdir

  result = Bosh::Exec.sh("tar -C #{release_dir} -xzf #{release_path} 2>&1", :on_error => :return)
  if result.failed?
    logger.error("Failed to extract release archive '#{release_path}' into dir '#{release_dir}', tar returned #{result.exit_status}, output: #{result.output})")
    FileUtils.rm_rf(release_dir)
    raise ReleaseInvalidArchive, "Extracting release archive failed. Check task debug log for details."
  end

  release_dir
end

#normalize_manifest ⇒ void

This method returns an undefined value.

Normalizes release manifest, so all names, versions, and checksums are Strings.



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# File 'lib/bosh/director/jobs/update_release.rb', line 164

def normalize_manifest
  Bosh::Director.hash_string_vals(@manifest, 'name', 'version')

  @manifest[@packages_folder].each { |p| Bosh::Director.hash_string_vals(p, 'name', 'version', 'sha1') }
  @manifest['jobs'].each { |j| Bosh::Director.hash_string_vals(j, 'name', 'version', 'sha1') }
end

#perform ⇒ void

This method returns an undefined value.

Extracts release tarball, verifies release manifest and saves release in DB



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# File 'lib/bosh/director/jobs/update_release.rb', line 41

def perform
  logger.info("Processing update release")
  logger.info("Release rebase will be performed") if @rebase

  single_step_stage("Downloading remote release") { download_remote_release } if release_url

  single_step_stage("Verifying remote release") { verify_sha1 } if sha1

  release_dir = nil
  single_step_stage("Extracting release") { release_dir = extract_release }

  single_step_stage("Verifying manifest") { verify_manifest(release_dir) }

  with_release_lock(@name) { process_release(release_dir) }

  "Created release '#{@name}/#{@version}'"

rescue Exception => e
  raise e

ensure
  FileUtils.rm_rf(release_dir) if release_dir
  FileUtils.rm_rf(release_path) if release_path
end

#process_jobs(release_dir) ⇒ void

This method returns an undefined value.

Finds job template definitions in release manifest and sorts them into two buckets: new and existing job templates, then creates new job template records in the database and points release version to existing ones.

Parameters:

  • release_dir (String) —

    local path to the unpacked release



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# File 'lib/bosh/director/jobs/update_release.rb', line 533

def process_jobs(release_dir)
  logger.info("Checking for new jobs in release")

  new_jobs = []
  existing_jobs = []

  @manifest["jobs"].each do |job_meta|
    # Checking whether we might have the same bits somewhere
    @release_version_model.templates.select { |t| t.name == job_meta["name"] }.each do |tmpl|
      if tmpl.fingerprint != job_meta["fingerprint"]
        raise ReleaseExistingJobFingerprintMismatch, "job '#{job_meta["name"]}' had different fingerprint in previously uploaded release '#{@name}/#{@version}'"
      end
    end

    jobs = Models::Template.where(fingerprint: job_meta["fingerprint"]).all

    template = jobs.find do |job|
      job.release_id == @release_model.id &&
      job.name == job_meta["name"] &&
      job.version == job_meta["version"]
    end

    if template.nil?
      new_jobs << job_meta
    else
      existing_jobs << [template, job_meta]
    end
  end

  did_something = create_jobs(new_jobs, release_dir)
  did_something |= use_existing_jobs(existing_jobs, release_dir)

  did_something
end

#process_packages(release_dir) ⇒ void

This method returns an undefined value.

Finds all package definitions in the manifest and sorts them into two buckets: new and existing packages, then creates new packages and points current release version to the existing packages.

Parameters:

  • release_dir (String) —

    local path to the unpacked release



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# File 'lib/bosh/director/jobs/update_release.rb', line 200

def process_packages(release_dir)
  logger.info("Checking for new packages in release")

  new_packages = []
  existing_packages = []
  registered_packages = []

  @manifest[@packages_folder].each do |package_meta|
    # Checking whether we might have the same bits somewhere (in any release, not just the one being uploaded)
    @release_version_model.packages.select { |pv| pv.name == package_meta['name'] }.each do |package|
      if package.fingerprint != package_meta['fingerprint']
        raise ReleaseInvalidPackage, "package '#{package_meta['name']}' had different fingerprint in previously uploaded release '#{@name}/#{@version}'"
      end
    end

    packages = Models::Package.where(fingerprint: package_meta['fingerprint']).all

    if packages.empty?
      new_packages << package_meta
      next
    end

    existing_package = packages.find do |package|
      package.release_id == @release_model.id &&
      package.name == package_meta['name'] &&
      package.version == package_meta['version']
    end

    if existing_package
      # clean up 'broken' dependency_set (a bug was including transitives)
      # dependency ordering impacts fingerprint
      # TODO: The following code can be removed after some reasonable time period (added 2014.10.06)
      if existing_package.dependency_set != package_meta['dependencies']
        existing_package.dependency_set = package_meta['dependencies']
        existing_package.save
      end

      if existing_package.release_versions.include? @release_version_model
        if existing_package.blobstore_id.nil?
          packages.each do |package|
            unless package.blobstore_id.nil?
              package_meta['blobstore_id'] = package.blobstore_id
              package_meta['sha1'] = package.sha1
              break
            end
          end
        end
        registered_packages << [existing_package, package_meta]
      else
        existing_packages << [existing_package, package_meta]
      end

    else
      # We found a package with the same fingerprint but different
      # (release, name, version) tuple, so we need to make a copy
      # of the package blob and create a new db entry for it
      packages.each do |package|
        unless package.blobstore_id.nil?
          package_meta['blobstore_id'] = package.blobstore_id
          package_meta['sha1'] = package.sha1
          break
        end
      end
      new_packages << package_meta
    end
  end

  created_package_refs = create_packages(new_packages, release_dir)

  existing_package_refs = use_existing_packages(existing_packages, release_dir)

  if @compiled_release
    registered_package_refs = registered_packages.map do |pkg, pkg_meta|
      {
        package: pkg,
        package_meta: pkg_meta,
      }
    end
    all_package_refs = Array(created_package_refs) | Array(existing_package_refs) | registered_package_refs
    create_compiled_packages(all_package_refs, release_dir)
  else
    backfill_source_for_packages(registered_packages, release_dir)
  end
end

#process_release(release_dir) ⇒ void

This method returns an undefined value.

Processes uploaded release, creates jobs and packages in DB if needed

Parameters:

  • release_dir (String) —

    local path to the unpacked release



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# File 'lib/bosh/director/jobs/update_release.rb', line 131

def process_release(release_dir)
  @release_model = Models::Release.find_or_create(:name => @name)

  @version = next_release_version if @rebase

  release_is_new = false
  @release_version_model = Models::ReleaseVersion.find_or_create(release: @release_model, version: @version.to_s) do
    release_is_new = true
  end

  if release_is_new
    @release_version_model.uncommitted_changes = @uncommitted_changes if @uncommitted_changes
    @release_version_model.commit_hash = @commit_hash if @commit_hash
    @release_version_model.save
  else
    if @release_version_model.commit_hash != @commit_hash || @release_version_model.uncommitted_changes != @uncommitted_changes
      raise ReleaseVersionCommitHashMismatch, "release '#{@name}/#{@version}' has already been uploaded with commit_hash as '#{@commit_hash}' and uncommitted_changes as '#{@uncommitted_changes}'"
    end
  end

  single_step_stage("Resolving package dependencies") do
    resolve_package_dependencies(@manifest[@packages_folder])
  end

  process_packages(release_dir)
  process_jobs(release_dir)

  event_log_stage = Config.event_log.begin_stage(@compiled_release ? "Compiled Release has been created" : "Release has been created", 1)
  event_log_stage.advance_and_track("#{@name}/#{@version}") {}
end

#register_package(package) ⇒ void

This method returns an undefined value.

Marks package model as used by release version model

Parameters:



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# File 'lib/bosh/director/jobs/update_release.rb', line 524

def register_package(package)
  @release_version_model.add_package(package)
end

#resolve_package_dependencies(packages) ⇒ void

This method returns an undefined value.

Resolves package dependencies, makes sure there are no cycles and all dependencies are present



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# File 'lib/bosh/director/jobs/update_release.rb', line 174

def resolve_package_dependencies(packages)
  packages_by_name = {}
  packages.each do |package|
    packages_by_name[package["name"]] = package
    package["dependencies"] ||= []
  end
  logger.info("Resolving package dependencies for #{packages_by_name.keys.inspect}")

  dependency_lookup = lambda do |package_name|
    packages_by_name[package_name]["dependencies"]
  end
  result = Bosh::Director::CycleHelper.check_for_cycle(packages_by_name.keys, :connected_vertices => true, &dependency_lookup)

  packages.each do |package|
    name = package["name"]
    dependencies = package["dependencies"]
    all_dependencies = result[:connected_vertices][name]
    logger.info("Resolved package dependencies for '#{name}': #{dependencies.pretty_inspect} => #{all_dependencies.pretty_inspect}")
  end
end

#save_package_source_blob(package, package_meta, release_dir) ⇒ boolean

Returns true if a new blob was created; false otherwise.

Returns:

  • (boolean) —

    true if a new blob was created; false otherwise



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# File 'lib/bosh/director/jobs/update_release.rb', line 470

def save_package_source_blob(package, package_meta, release_dir)
  name = package_meta['name']
  version = package_meta['version']
  existing_blob = package_meta['blobstore_id']
  sha1 = package_meta['sha1']
  desc = "package '#{name}/#{version}'"
  package_tgz = File.join(release_dir, 'packages', "#{name}.tgz")

  if @fix
    package.sha1 = sha1

    if package.blobstore_id != nil
      delete_compiled_packages package
      validate_tgz(package_tgz, desc)
      fix_package(package, package_tgz)
      return true
    end

    if existing_blob
      pkg = Models::Package.where(blobstore_id: existing_blob).first
      delete_compiled_packages(package)
      fix_package(pkg, package_tgz)
      package.blobstore_id = BlobUtil.copy_blob(pkg.blobstore_id)
      return true
    end
  else
    return false unless package.blobstore_id.nil?
    package.sha1 = sha1

    if existing_blob
      logger.info("Creating #{desc} from existing blob #{existing_blob}")
      package.blobstore_id = BlobUtil.copy_blob(existing_blob)
      return true
    end
  end

  logger.info("Creating #{desc} from provided bits")
  validate_tgz(package_tgz, desc)
  package.blobstore_id = BlobUtil.create_blob(package_tgz)

  true
end

#source_release ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 124

def source_release
  !compiled_release
end

#use_existing_jobs(jobs, release_dir) ⇒ boolean

Returns true if at least one job was tied to the release version; false if the call had no effect.

Parameters:

Returns:

  • (boolean) —

    true if at least one job was tied to the release version; false if the call had no effect.



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# File 'lib/bosh/director/jobs/update_release.rb', line 594

def use_existing_jobs(jobs, release_dir)
  return false if jobs.empty?

  single_step_stage("Processing #{jobs.size} existing job#{"s" if jobs.size > 1}") do
    jobs.each do |template, job_meta|
      job_desc = "#{template.name}/#{template.version}"

      if @fix
        logger.info("Fixing existing job '#{job_desc}'")
        release_job = ReleaseJob.new(job_meta, @release_model, release_dir, logger)
        release_job.update(template)
      else
        logger.info("Using existing job '#{job_desc}'")
      end

      register_template(template) unless template.release_versions.include? @release_version_model
    end
  end

  true
end

#use_existing_packages(packages, release_dir) ⇒ Array<Hash>

Points release DB model to existing packages described by given metadata

Parameters:

  • packages (Array<Array>) —

    Existing packages metadata.

Returns:

  • (Array<Hash>) —

    array of registered package models and their metadata, empty if no packages were changed.



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# File 'lib/bosh/director/jobs/update_release.rb', line 305

def use_existing_packages(packages, release_dir)
  if packages.empty?
    return []
  end

  package_refs = []

  single_step_stage("Processing #{packages.size} existing package#{"s" if packages.size > 1}") do
    packages.each do |package, package_meta|
      package_desc = "#{package.name}/#{package.version}"
      logger.info("Using existing package '#{package_desc}'")
      register_package(package)

      if compiled_release
        package_refs << {
          package: package,
          package_meta: package_meta,
        }
      end

      if source_release && (package.blobstore_id.nil? || @fix)
        save_package_source_blob(package, package_meta, release_dir)
        package.save
      end
    end
  end

  return package_refs
end

#validate_tgz(tgz, desc) ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 513

def validate_tgz(tgz, desc)
  result = Bosh::Exec.sh("tar -tzf #{tgz} 2>&1", :on_error => :return)
  if result.failed?
    logger.error("Extracting #{desc} archive failed, tar returned #{result.exit_status}, output: #{result.output}")
    raise PackageInvalidArchive, "Extracting #{desc} archive failed. Check task debug log for details."
  end
end

#verify_manifest(release_dir) ⇒ void

This method returns an undefined value.

Parameters:

  • release_dir (String) —

    local path to the unpacked release

Raises:



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# File 'lib/bosh/director/jobs/update_release.rb', line 87

def verify_manifest(release_dir)
  manifest_file = File.join(release_dir, "release.MF")
  raise ReleaseManifestNotFound, "Release manifest not found" unless File.file?(manifest_file)

  @manifest = Psych.load_file(manifest_file)

  #handle compiled_release case
  @compiled_release = !!@manifest["compiled_packages"]
  @packages_folder = @compiled_release ? "compiled_packages" : "packages"

  normalize_manifest

  @name = @manifest["name"]

  begin
    @version = Bosh::Common::Version::ReleaseVersion.parse(@manifest["version"])
    logger.info("Formatted version '#{@manifest["version"]}' => '#{@version}'") unless @version.to_s == @manifest["version"]
  rescue SemiSemantic::ParseError
    raise ReleaseVersionInvalid, "Release version invalid: #{@manifest["version"]}"
  end

  @commit_hash = @manifest.fetch("commit_hash", nil)
  @uncommitted_changes = @manifest.fetch("uncommitted_changes", nil)
end

#verify_sha1 ⇒ Object 



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# File 'lib/bosh/director/jobs/update_release.rb', line 112

def verify_sha1
  release_hash = Digest::SHA1.file(release_path).hexdigest
  if release_hash != sha1
    raise ReleaseSha1DoesNotMatch, "Release SHA1 '#{release_hash}' does not match the expected SHA1 '#{sha1}'"
  end
end