Cleans up old directories left over from Cloud Foundry / BOSH deployments

Bosh_cleaner.rb

#!/usr/bin/env ruby

require 'rbvmomi/vim'
require 'slop'
require 'byebug'

opts = Slop.parse(strict: true, help: true) do
  banner 'bosh_cleaner.rb --vcenter vcenter.cf.nono.com --ds_name freenas --dc_name "My DC" --password blahblah'
  on('vcenter=', 'vCenter host (e.g. "vcenter.cf.nono.com")')
  on('user=', 'vCenter username (defaults to "root")')
  on('password=', 'vCenter password (e.g. "vmware")')
  on('dc_name=', 'datacenter name (e.g. "My Datacenter")')
  on('ds_name=', 'datastore name (e.g. "freenas")')
end

connection = RbVmomi::VIM.connect(
  host: opts[:vcenter],
  user: opts[:user],
  password: opts[:password],
  insecure: true
)

dc_name = opts[:dc_name]
ds_name = opts[:ds_name]

datacenter = connection.serviceInstance.find_datacenter(dc_name)

def bosh_vm_names(datacenter)
  clusters = datacenter.hostFolder.children.select { |possible_cluster| possible_cluster.is_a?(RbVmomi::VIM::ClusterComputeResource) }

  esxi_hosts = []
  clusters.each do |cluster|
    esxi_hosts.concat(cluster.host.select { |possible_esxi_host| possible_esxi_host.is_a?(RbVmomi::VIM::HostSystem) })
  end

  bosh_vms = []
  esxi_hosts.each do |esxi_host|
    vms = esxi_host.vm.select do |possible_vm|
      possible_vm.is_a?(RbVmomi::VIM::VirtualMachine) && possible_vm.name.match(/^vm-/)
    end
    bosh_vms.concat(vms)
  end

  bosh_vms.map(&:name)
end

def directory_names(datacenter, ds_name)
  private_datastore = datacenter.datastore.find { |datastore| datastore.name == ds_name }

  search_result = private_datastore.browser.SearchDatastore_Task(datastorePath: "[#{ds_name}] /").wait_for_completion
  search_result.file.map(&:path).select { |path| path.match(/^vm-/) }
end

directories_to_delete = directory_names(datacenter, ds_name) - bosh_vm_names(datacenter)
puts directories_to_delete.sort

Gemfile

source 'https://rubygems.org'

gem 'rvc'
gem 'rbvmomi'
gem 'slop'

group :development do
  gem 'byebug'
end

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    backports (3.6.1)
    builder (3.2.2)
    byebug (3.4.1)
      columnize (~> 0.8)
      debugger-linecache (~> 1.2)
      slop (~> 3.6)
    columnize (0.8.9)
    debugger-linecache (1.2.0)
    highline (1.6.21)
    mini_portile (0.6.0)
    nokogiri (1.6.3.1)
      mini_portile (= 0.6.0)
    rbvmomi (1.8.2)
      builder
      nokogiri (>= 1.4.1)
      trollop
    rvc (1.8.0)
      backports (>= 1.18.2)
      highline (>= 1.6.1)
      rbvmomi (>= 1.6.0)
      terminal-table (>= 1.4.2)
      trollop (>= 1.16.2)
      zip (>= 2.0.2)
    slop (3.6.0)
    terminal-table (1.4.5)
    trollop (2.0)
    zip (2.0.2)

PLATFORMS
  ruby

DEPENDENCIES
  byebug
  rbvmomi
  rvc
  slop

git clone blah-blah
cd blah-blah
bundle
chmod +x Bosh_cleaner.rb
bundle exec ./Bosh_cleaner.rb  --vcenter vcenter.cf.nono.com --password vmware --dc_name Datacenter --ds_name synology > /tmp/vms_to_delete.txt
scp /tmp/vms_to_delete.txt root@some_esxi_host:/tmp/
ssh root@some_esxi_host
cd /vmfs/volumes/synology
for EMPTY_DIR in $(cat /tmp/vms_to_delete.txt); do 
  echo "deleting $EMPTY_DIR"
  rm -rf  $EMPTY_DIR
  sleep 1
done