Class: OpennebulaEconeProbe

Inherits:
OpennebulaProbe show all
Defined in:
lib/probe/opennebula_econe_probe.rb

Overview

OpennebulaEconeProbe - Econe client query service implementation.

Constant Summary

Constants inherited from OpennebulaProbe

OpennebulaProbe::CRIT_MSG, OpennebulaProbe::OK_MSG, OpennebulaProbe::UNKWN_MSG, OpennebulaProbe::WARN_MSG

Instance Attribute Summary

Attributes inherited from OpennebulaProbe

#logger, #message, #retval

Instance Method Summary collapse

Methods inherited from OpennebulaProbe

#crit?, #run, #warn?

Constructor Details

#initialize(opts) ⇒ OpennebulaEconeProbe 



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# File 'lib/probe/opennebula_econe_probe.rb', line 23

def initialize(opts)
  super(opts)

  @connection = AWS::EC2::Base.new(
      access_key_id:      @opts.username,
      secret_access_key:  Digest::SHA1.hexdigest(@opts.password),
      server:             @opts.hostname,
      port:               @opts.port,
      path:               @opts.path,
      use_ssl:            @opts.protocol == :https
  )
end

Instance Method Details

#check_crit ⇒ Object 



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# File 'lib/probe/opennebula_econe_probe.rb', line 36

def check_crit
  @logger.info "Checking for basic connectivity at #{@endpoint}"
  begin
    @connection.describe_images
    @connection.describe_instances
  rescue StandardError => e
    @logger.error "Failed to check connectivity: #{e.message}"
    @logger.debug "#{e.backtrace.join("\n")}"
    return true
  end

  false
end

#check_resources(resources) ⇒ Object 



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# File 'lib/probe/opennebula_econe_probe.rb', line 50

def check_resources(resources)
  if resources.map { |x| x[:resource] }.reduce(true) { |product, resource| product && resource.nil? }
    @logger.info 'There are no resources to check, for details on how to specify resources see --help'
    return false
  end

  resources.each do |resource_hash|
    resource = resource_hash[:resource]

    next unless resource

    @logger.info "Looking for #{resource_hash[:resource_string]}s: #{resource.inspect}"
    if resource_hash[:resource_type] == :image
      result = @connection.describe_images
      set    = 'imagesSet'
      id     = 'imageId'
    elsif resource_hash[:resource_type] == :compute
      result = @connection.describe_instances
      result = result['reservationSet']['item'][0] if result['reservationSet'] && result['reservationSet']['item']
      set    = 'instancesSet'
      id     = 'amiLaunchIndex'
    else
      fail 'Wrong resource definition'
    end

    @logger.debug result

    fail "No #{resource_hash[:resource_string].capitalize} found" unless result && result[set]

    resource.each do |resource_to_look_for|
      found = false

      result[set]['item'].each { |resource_found| found = true if resource_to_look_for == resource_found[id] }

      fail "#{resource_hash[:resource_string].capitalize} #{resource_to_look_for} not found" unless found
    end
  end

  false
end

#check_warn ⇒ Object 



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# File 'lib/probe/opennebula_econe_probe.rb', line 91

def check_warn
  @logger.info "Checking for resource availability at #{@endpoint}"

  # iterate over given resources
  @logger.info "Not looking for networks, since it is not supported by OpenNebula's ECONE server'"  if @opts.network

  resources = []
  resources << { resource_type: :image, resource: @opts.storage, resource_string: 'image' }
  resources << { resource_type: :compute, resource: @opts.compute, resource_string: 'compute instance' }

  check_resources(resources)

rescue StandardError => e
  @logger.error "Failed to check resource availability: #{e.message}"
  @logger.debug "#{e.backtrace.join("\n")}"
  return true
end