Class: VSphereMonitoring

Inherits:
Object
  • Object
show all
Defined in:
lib/vspheremonitoring.rb

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ VSphereMonitoring

Returns a new instance of VSphereMonitoring.



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# File 'lib/vspheremonitoring.rb', line 9

def initialize (config)
  @config = config
  @verbose = config[:opts][:verbose]

  speak("Building connection to vsphere")
  @vim = RbVmomi::VIM.connect :host     => config[:host],
                             :user     => config[:user],
                             :password => config[:password],
                             :insecure => true

  p = Hash.new
  p[:vsphere] = process_all_datacenters()
  puts p.to_json
end

Instance Method Details

#cluster_cpu(cluster) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 65

def cluster_cpu (cluster)
  speak("gathering cluster cpu stats for #{cluster.name}")
  data = Hash.new
  data['totalCpu']      = cluster.summary.totalCpu
  data['numCpuCores']   = cluster.summary.numCpuCores
  data['numCpuThreads'] = cluster.summary.numCpuThreads
  data['effectiveCpu']  = cluster.summary.effectiveCpu
  data
end

#cluster_memory(cluster) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 57

def cluster_memory (cluster)
  speak("gathering cluster memory stats for #{cluster.name}")
  data = Hash.new
  data['totalMemory']     = cluster.summary.totalMemory
  data['effectiveMemory'] = cluster.summary.effectiveMemory
  data
end

#cluster_stats(cluster) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 75

def cluster_stats (cluster)
  speak("gathering cluster stats for #{cluster.name}")
  data = Hash.new
  data['cpu']               = cluster_cpu(cluster)
  data['memory']            = cluster_memory(cluster)
  data['numVmotions']       = cluster.summary.numVmotions
  data['numHosts']          = cluster.summary.numHosts
  data['numEffectiveHosts'] = cluster.summary.numEffectiveHosts
  data['targetBalance']     = cluster.summary.targetBalance
  data['currentBalance']    = cluster.summary.currentBalance
  data
end

#datastore_stats(datastore) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 88

def datastore_stats (datastore)
  speak("gathering datastore stats for #{datastore.name}")
  data = Hash.new
  datastore.RefreshDatastore
  capacity = datastore.summary.capacity
  freeSpace = datastore.summary.freeSpace
  uncommitted = datastore.summary.uncommitted
  data['capacityM']    = ((capacity / 1024) / 1024) if capacity.class != NilClass
  data['freeSpaceM']   = ((freeSpace / 1024) / 1024) if freeSpace.class != NilClass
  data['uncommittedM'] = ((uncommitted / 1024) / 1024) if uncommitted.class != NilClass
  data
end

#host_cpu(host) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 38

def host_cpu (host)
  speak("gathering cpu stats for #{host.name}")
  data = Hash.new
  data['Mhz']      = host.hardware.cpuInfo.hz / 1000 / 1000
  data['cores']    = host.hardware.cpuInfo.numCpuCores
  data['totalMhz'] = data['Mhz'] * data['cores']
  data['usageMhz'] = host.summary.quickStats.overallCpuUsage.to_f
  data['percent']  = (data['usageMhz'] / data['totalMhz']) * 100
  data
end

#host_memory(host) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 29

def host_memory (host)
  speak("gathering memory stats for #{host.name}")
  data            = Hash.new
  data['total']   = host.hardware.memorySize.bytes.to.megabytes.to_f
  data['usage']   = host.summary.quickStats.overallMemoryUsage.megabytes.to_f
  data['percent'] = (data['usage'] / data['total']) * 100
  data
end

#host_stats(host) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 49

def host_stats (host)
  speak("gathering host stats for #{host.name}")
  data = Hash.new
  data['memory']  = host_memory(host)
  data['cpu']     = host_cpu(host)
  data
end

#network_stats(network) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 101

def network_stats (network)
  speak("gathering network stats for #{network.name}")
  data = Hash.new
  data
end

#process_all_datacenters ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 139

def process_all_datacenters ()

  rootFolder = @vim.serviceInstance.content.rootFolder
  dclist = rootFolder.children.select {|d| d.class == RbVmomi::VIM::Datacenter }

  data = Hash.new
  dclist.each do |datacenter|
    data[datacenter.name] = process_datacenter(datacenter)
  end
  data

end

#process_datacenter(dc) ⇒ Object 



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# File 'lib/vspheremonitoring.rb', line 107

def process_datacenter (dc)
  speak("collecting metrics for datacenter #{dc.name}")

  data = Hash.new
  data['hypers'] = Hash.new
  data['clusters'] = Hash.new
  data['datastores'] = Hash.new
  # Get the information for host
  host_list    = dc.hostFolder.children.select {|h| h.class == RbVmomi::VIM::ComputeResource }
  host_list.map {|h|
    data['hypers'][h.name] = host_stats(h.host.first)
  }

  # Get the information for each host in a cluster
  cluster_list = dc.hostFolder.children.select {|h| h.class == RbVmomi::VIM::ClusterComputeResource }
  cluster_list.map {|c|
    data['clusters'][c.name] = cluster_stats(c)
    c.host.map {|h|
      data['hypers'][h.name] = host_stats(h)
    }
  }

  # Get informaton about datastore usage
  datastore_list = dc.datastore
  datastore_list.map {|d|
    data['datastores'][d.name] = datastore_stats(d)
  }

  data['vm_count'] = dc.vmFolder.children.select {|v| v.class == RbVmomi::VIM::VirtualMachine }.size
  data
end

#speak(what) ⇒ Object

module_function



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# File 'lib/vspheremonitoring.rb', line 25

def speak(what)
  puts what if @verbose
end