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

Returns a new instance of OpenNebulaEconeProbe.



23
24
25
26
27
28
29
30
31
32
33
34
 
# 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 



36
37
38
39
40
41
42
43
44
45
46
47
48
 
# 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 



50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
 
# 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 



91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# 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