Class: Bosh::Director::Jobs::DeleteDeployment

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

Constant Summary

Constants included from DnsHelper

DnsHelper::SOA, DnsHelper::TTL_4H, DnsHelper::TTL_5M

Instance Attribute Summary

Attributes inherited from BaseJob

#task_id

Class Method Summary collapse

Instance Method Summary collapse

Methods included from LockHelper

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

Methods included from DnsHelper

#add_default_dns_server, #canonical, #default_dns_server, #delete_dns_records, #delete_empty_domain, #dns_domain_name, #dns_ns_record, #dns_servers, #flush_dns_cache, #invalid_dns, #reverse_domain, #reverse_host, #update_dns_a_record, #update_dns_ptr_record

Methods inherited from BaseJob

#begin_stage, #event_log, #logger, perform, #result_file, #single_step_stage, #task_cancelled?, #task_checkpoint, #track_and_log

Constructor Details

#initialize(deployment_name, options = {}) ⇒ DeleteDeployment

Returns a new instance of DeleteDeployment.



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 13

def initialize(deployment_name, options = {})
  @deployment_name = deployment_name
  @force = options["force"]
  @keep_snapshots = options["keep_snapshots"]
  @cloud = Config.cloud
  @deployment_manager = Api::DeploymentManager.new
  @blobstore = App.instance.blobstores.blobstore
end

Class Method Details

.job_type ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 9

def self.job_type
  :delete_deployment
end

Instance Method Details

#delete_dns(name) ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 169

def delete_dns(name)
  if Config.dns_enabled?
    record_pattern = ["%", canonical(name), dns_domain_name].join(".")
    delete_dns_records(record_pattern)
  end
end

#delete_instance(instance) ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 101

def delete_instance(instance)
  desc = "#{instance.job}/#{instance.index}"
  with_thread_name("delete_instance(#{desc})") do
    logger.info("Deleting instance: #{desc}")

    vm = instance.vm

    if vm && vm.agent_id
      ignoring_errors_when_forced do
        agent = AgentClient.with_defaults(vm.agent_id)
        agent.stop
      end
    end

    instance.persistent_disks.each do |disk|
      if disk.active && vm && vm.cid && disk.disk_cid
        if vm.agent_id
          ignoring_errors_when_forced do
            agent = AgentClient.with_defaults(vm.agent_id)
            agent.unmount_disk(disk.disk_cid)
          end
        end

        ignoring_errors_when_forced do
          # If persistent disk has been mounted but
          # clean_shutdown above did not unmount it
          # properly (i.e. for wedged deployment),
          # detach_disk might hang indefinitely.
          # Right now it's up to cloudcheck handle
          # that but 'force' might be added to CPI
          # in the future.
          @cloud.detach_disk(vm.cid, disk.disk_cid)
        end
      end

      if disk.disk_cid
        ignoring_errors_when_forced do
          delete_snapshots(disk)
          @cloud.delete_disk(disk.disk_cid)
        end
      end

      disk.destroy
    end

    ignoring_errors_when_forced do
      RenderedJobTemplatesCleaner.new(instance, @blobstore).clean_all
    end

    instance.destroy

    delete_vm(vm) if vm
  end
end

#delete_instances(deployment, pool) ⇒ Object 



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

def delete_instances(deployment, pool)
  instances = deployment.job_instances
  event_log.begin_stage("Deleting instances", instances.count)

  instances.each do |instance|
    pool.process do
      desc = "#{instance.job}/#{instance.index}"
      event_log.track(desc) do
        logger.info("Deleting #{desc}")
        delete_instance(instance)
      end
    end
  end
end

#delete_snapshots(disk) ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 156

def delete_snapshots(disk)
  @keep_snapshots ? disk.snapshots.each(&:delete) : Api::SnapshotManager.delete_snapshots(disk.snapshots)
end

#delete_vm(vm) ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 160

def delete_vm(vm)
  if vm.cid
    ignoring_errors_when_forced do
      @cloud.delete_vm(vm.cid)
    end
  end
  vm.destroy
end

#delete_vms(deployment, pool) ⇒ Object 



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

def delete_vms(deployment, pool)
  vms = deployment.vms
  event_log.begin_stage("Deleting idle VMs", vms.count)

  vms.each do |vm|
    pool.process do
      event_log.track("#{vm.cid}") do
        logger.info("Deleting idle vm #{vm.cid}")
        delete_vm(vm)
      end
    end
  end
end

#find_deployment(name) ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 68

def find_deployment(name)
  @deployment_manager.find_by_name(name)
end

#ignoring_errors_when_forced ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 176

def ignoring_errors_when_forced
  yield
rescue => e
  raise unless @force
  logger.warn(e.backtrace.join("\n"))
  logger.info("Force deleting is set, ignoring exception")
end

#perform ⇒ Object 



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# File 'lib/bosh/director/jobs/delete_deployment.rb', line 22

def perform
  logger.info("Deleting: #{@deployment_name}")

  deployment = find_deployment(@deployment_name)

  logger.info("Acquiring deployment lock: #{deployment.name}")

  with_deployment_lock(@deployment_name) do
    # Make sure it wasn't deleted
    deployment = find_deployment(@deployment_name)

    ThreadPool.new(:max_threads => Config.max_threads).wrap do |pool|
      delete_instances(deployment, pool)
      pool.wait
      delete_vms(deployment, pool)
    end

    event_log.begin_stage("Removing deployment artifacts", 3)
    track_and_log("Detach stemcells") do
      deployment.remove_all_stemcells
    end

    track_and_log("Detaching releases") do
      deployment.remove_all_release_versions
    end

    event_log.begin_stage("Deleting properties",
                           deployment.properties.count)
    logger.info("Deleting deployment properties")
    deployment.properties.each do |property|
      event_log.track(property.name) do
        property.destroy
      end
    end

    track_and_log("Delete DNS records") do
      delete_dns(@deployment_name)
    end

    track_and_log("Destroy deployment") do
      deployment.destroy
    end
    "/deployments/#{@deployment_name}"
  end
end