evm_dump.rb

#!/usr/bin/env ruby
require File.expand_path('../config/environment', __dir__)

LOG_DIR = "./"
logfile = File.join(LOG_DIR, "evm_dump.log")
File.delete(logfile) if File.exist?(logfile)
$log = VMDBLogger.new(logfile)
$log.level = VMDBLogger.const_get("DEBUG")

yml_fnames = []

def log(level, msg)
  puts "[#{Time.now.utc}] #{level.to_s.upcase}: #{msg}"
  $log.send(level, msg)
end

def yml_fname(klass)
  File.join(LOG_DIR, "#{klass.name.underscore}.yml")
end

def yml_dump(yml_fname, items)
  File.delete(yml_fname) if File.exist?(yml_fname)
  File.open(yml_fname, "w") { |fd| fd.write(YAML.dump(items)) }
end

### Main

# verify we are in the vmdb directory
unless File.exist?('app')
  log(:error, "Please run this script using 'script/runner miq_queue_dump.rb' from vmdb directory")
  exit 1
end

# NOTE: Models that are not needed in dump can be commented directly in list.
MODELS = [
  AssignedServerRole,
  Job,
  MiqEnterprise,
  MiqQueue,
  MiqServer,
  MiqTask,
  MiqWorker,
  ServerRole,
  Zone
]
#

MODELS += ARGV.collect { |model| Object.const_get(model) }

MODELS.each do |klass|
  log(:info, "Getting #{klass} objects")
  items = klass.all.to_a
  if items.length > 0
    fname = yml_fname(klass)
    yml_fnames << fname
    log(:info, "Writing #{items.length} #{klass} objects to #{fname}")
    yml_dump(fname, items)
  else
    log(:info, "Found #{items.length} #{klass} objects")
  end
end

if yml_fnames.length > 0
  zip_fname = File.join(LOG_DIR, "evm_dump.zip")
  File.delete(zip_fname) if File.exist?(zip_fname)
  cmdline = "zip #{zip_fname} #{logfile} #{yml_fnames.join(' ')}"
  log(:info, "Zipping dump into #{zip_fname}")
  system(cmdline)
  yml_fnames.each { |fname| File.delete(fname) }
end

log(:info, "Done")

exit 0