Class: VCenterDriver::VCenterHost
- Inherits:
-
OpenNebula::Host
- Object
- OpenNebula::XMLElement
- OpenNebula::PoolElement
- OpenNebula::Host
- VCenterDriver::VCenterHost
- Defined in:
- lib/vcenter_driver.rb
Overview
This class is an OpenNebula hosts that abstracts a vCenter cluster. It includes the functionality needed to monitor the cluster and report the ESX hosts and VM status of the cluster.
Constant Summary
Constants inherited from OpenNebula::Host
OpenNebula::Host::HOST_METHODS, OpenNebula::Host::HOST_STATES, OpenNebula::Host::HOST_STATUS, OpenNebula::Host::SHORT_HOST_STATES
Instance Attribute Summary collapse
-
#client ⇒ Object
readonly
Returns the value of attribute client.
-
#cluster ⇒ Object
readonly
Returns the value of attribute cluster.
-
#host ⇒ Object
readonly
Returns the value of attribute host.
-
#vc_client ⇒ Object
readonly
Returns the value of attribute vc_client.
-
#vc_root ⇒ Object
readonly
Returns the value of attribute vc_root.
Class Method Summary collapse
-
.to_one(cluster_name, client) ⇒ Object
Creates an OpenNebula host representing a cluster in this VCenter @param cluster_name the name of the cluster in the vcenter @param client [VIClient] to create the host @return In case of success [0, host_id] or [-1, error_msg].
Instance Method Summary collapse
- #get_available_ds ⇒ Object
-
#initialize(client) ⇒ VCenterHost
constructor
Initialize the VCenterHost by looking for the associated objects of the VIM hierarchy client [VIClient] to interact with the associated vCenter.
-
#monitor_cluster ⇒ Object
Generate an OpenNebula monitor string for this host.
- #monitor_customizations ⇒ Object
-
#monitor_host_systems ⇒ Object
Generate a template with information for each ESX Host.
-
#monitor_resource_pools(parent_rp, parent_prefix, mhz_core) ⇒ Object
Generate an OpenNebula monitor string for all resource pools of a cluster Reference: pubs.vmware.com/vsphere-60/index.jsp#com.vmware.wssdk.apiref.doc /vim.ResourcePool.html.
- #monitor_vms ⇒ Object
- #monitor_vms_in_rp(rp) ⇒ Object
Methods inherited from OpenNebula::Host
#allocate, build_xml, #delete, #disable, #enable, #flush, #import_wild, #importable_wilds, #info, #monitoring, #monitoring_xml, #offline, #rename, #short_state_str, #state, #state_str, #template_str, #update, #wilds
Methods inherited from OpenNebula::PoolElement
#id, #name, new_with_id, #to_str
Methods inherited from OpenNebula::XMLElement
#[], #add_element, #attr, build_xml, #delete_element, #each, #each_xpath, #element_xml, #has_elements?, #initialize_xml, #name, #retrieve_elements, #template_like_str, #template_str, #template_xml, #text, #to_hash, #to_xml, #xml_nil?
Constructor Details
#initialize(client) ⇒ VCenterHost
Initialize the VCenterHost by looking for the associated objects of the VIM hierarchy client [VIClient] to interact with the associated vCenter
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# File 'lib/vcenter_driver.rb', line 1059 def initialize(client) @client = client @cluster = client.cluster @resource_pools = client.resource_pool end |
Instance Attribute Details
#client ⇒ Object (readonly)
Returns the value of attribute client.
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# File 'lib/vcenter_driver.rb', line 1052 def client @client end |
#cluster ⇒ Object (readonly)
Returns the value of attribute cluster.
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# File 'lib/vcenter_driver.rb', line 1052 def cluster @cluster end |
#host ⇒ Object (readonly)
Returns the value of attribute host.
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# File 'lib/vcenter_driver.rb', line 1052 def host @host end |
#vc_client ⇒ Object (readonly)
Returns the value of attribute vc_client.
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# File 'lib/vcenter_driver.rb', line 1052 def vc_client @vc_client end |
#vc_root ⇒ Object (readonly)
Returns the value of attribute vc_root.
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# File 'lib/vcenter_driver.rb', line 1052 def vc_root @vc_root end |
Class Method Details
.to_one(cluster_name, client) ⇒ Object
Creates an OpenNebula host representing a cluster in this VCenter
@param cluster_name[String] the name of the cluster in the vcenter
@param client [VIClient] to create the host
@return In case of success [0, host_id] or [-1, error_msg]
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# File 'lib/vcenter_driver.rb', line 1072 def self.to_one(cluster_name, client) one_host = ::OpenNebula::Host.new(::OpenNebula::Host.build_xml, client.one) rc = one_host.allocate(cluster_name, 'vcenter', 'vcenter', ::OpenNebula::ClusterPool::NONE_CLUSTER_ID) return -1, rc. if ::OpenNebula.is_error?(rc) template = "VCENTER_HOST=\"#{client.host}\"\n"\ "VCENTER_PASSWORD=\"#{client.pass}\"\n"\ "VCENTER_USER=\"#{client.user}\"\n" rc = one_host.update(template, false) if ::OpenNebula.is_error?(rc) error = rc. rc = one_host.delete if ::OpenNebula.is_error?(rc) error << ". Host #{cluster_name} could not be"\ " deleted: #{rc.}." end return -1, error end return 0, one_host.id end |
Instance Method Details
#get_available_ds ⇒ Object
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# File 'lib/vcenter_driver.rb', line 1339 def get_available_ds str_info = "" datastores = VIClient.get_entities(client.dc.datastoreFolder, 'Datastore') datastores.each { |ds| str_info += "VCENTER_DATASTORE=\"#{ds.name}\"\n" } str_info.chomp end |
#monitor_cluster ⇒ Object
Generate an OpenNebula monitor string for this host. Reference: www.vmware.com/support/developer/vc-sdk/visdk25pubs/Reference Guide/vim.ComputeResource.Summary.html
- effectiveCpu: Effective CPU resources (in MHz) available to run
VMs. This is the aggregated from all running hosts excluding hosts in
maintenance mode or unresponsive are not counted.
- effectiveMemory: Effective memory resources (in MB) available to run
VMs. Equivalente to effectiveCpu.
- numCpuCores: Number of physical CPU cores.
- numEffectiveHosts: Total number of effective hosts.
- numHosts:Total number of hosts.
- totalCpu: Aggregated CPU resources of all hosts, in MHz.
- totalMemory: Aggregated memory resources of all hosts, in bytes.
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# File 'lib/vcenter_driver.rb', line 1118 def monitor_cluster #Load the host systems summary = @cluster.summary mhz_core = summary.totalCpu.to_f / summary.numCpuCores.to_f eff_core = summary.effectiveCpu.to_f / mhz_core free_cpu = sprintf('%.2f', eff_core * 100).to_f total_cpu = summary.numCpuCores.to_f * 100 used_cpu = sprintf('%.2f', total_cpu - free_cpu).to_f total_mem = summary.totalMemory.to_i / 1024 free_mem = summary.effectiveMemory.to_i * 1024 str_info = "" # System str_info << "HYPERVISOR=vcenter\n" str_info << "PUBLIC_CLOUD=YES\n" str_info << "TOTALHOST=" << summary.numHosts.to_s << "\n" str_info << "AVAILHOST=" << summary.numEffectiveHosts.to_s << "\n" # CPU str_info << "CPUSPEED=" << mhz_core.to_s << "\n" str_info << "TOTALCPU=" << total_cpu.to_s << "\n" str_info << "USEDCPU=" << used_cpu.to_s << "\n" str_info << "FREECPU=" << free_cpu.to_s << "\n" # Memory str_info << "TOTALMEMORY=" << total_mem.to_s << "\n" str_info << "FREEMEMORY=" << free_mem.to_s << "\n" str_info << "USEDMEMORY=" << (total_mem - free_mem).to_s str_info << monitor_resource_pools(@cluster.resourcePool, "", mhz_core) end |
#monitor_customizations ⇒ Object
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# File 'lib/vcenter_driver.rb', line 1323 def monitor_customizations customizations = client.vim.serviceContent.customizationSpecManager.info text = '' customizations.each do |c| t = "CUSTOMIZATION = [ " t << %Q<NAME = "#{c.name}", > t << %Q<TYPE = "#{c.type}" ]\n> text << t end text end |
#monitor_host_systems ⇒ Object
Generate a template with information for each ESX Host. Reference: pubs.vmware.com/vi-sdk/visdk250/ReferenceGuide/vim.HostSystem.html
- Summary: Basic information about the host, including connection state
- hardware: Hardware configuration of the host. This might not be
available for a disconnected host.
- quickStats: Basic host statistics.
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# File 'lib/vcenter_driver.rb', line 1217 def monitor_host_systems host_info = "" @cluster.host.each{|h| next if h.runtime.connectionState != "connected" summary = h.summary hw = summary.hardware stats = summary.quickStats total_cpu = hw.numCpuCores * 100 used_cpu = (stats.overallCpuUsage.to_f / hw.cpuMhz.to_f) * 100 used_cpu = sprintf('%.2f', used_cpu).to_f # Trim precission free_cpu = total_cpu - used_cpu total_memory = hw.memorySize/1024 used_memory = stats.overallMemoryUsage*1024 free_memory = total_memory - used_memory host_info << "\nHOST=[" host_info << "STATE=on," host_info << "HOSTNAME=\"" << h.name.to_s << "\"," host_info << "MODELNAME=\"" << hw.cpuModel.to_s << "\"," host_info << "CPUSPEED=" << hw.cpuMhz.to_s << "," host_info << "MAX_CPU=" << total_cpu.to_s << "," host_info << "USED_CPU=" << used_cpu.to_s << "," host_info << "FREE_CPU=" << free_cpu.to_s << "," host_info << "MAX_MEM=" << total_memory.to_s << "," host_info << "USED_MEM=" << used_memory.to_s << "," host_info << "FREE_MEM=" << free_memory.to_s host_info << "]" } return host_info end |
#monitor_resource_pools(parent_rp, parent_prefix, mhz_core) ⇒ Object
Generate an OpenNebula monitor string for all resource pools of a cluster Reference: pubs.vmware.com/vsphere-60/index.jsp#com.vmware.wssdk.apiref.doc /vim.ResourcePool.html
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# File 'lib/vcenter_driver.rb', line 1160 def monitor_resource_pools(parent_rp, parent_prefix, mhz_core) return "" if parent_rp.resourcePool.size == 0 rp_info = "" parent_rp.resourcePool.each{|rp| rpcpu = rp.config.cpuAllocation rpmem = rp.config.memoryAllocation # CPU = rpcpu. ? "YES" : "NO" cpu_limit = rpcpu.limit == "-1" ? "UNLIMITED" : rpcpu.limit cpu_reservation = rpcpu.reservation cpu_num = rpcpu.reservation.to_f / mhz_core cpu_shares_level = rpcpu.shares.level cpu_shares = rpcpu.shares.shares # MEMORY = rpmem. ? "YES" : "NO" mem_limit = rpmem.limit == "-1" ? "UNLIMITED" : rpmem.limit mem_reservation = rpmem.reservation.to_f mem_shares_level = rpmem.shares.level mem_shares = rpmem.shares.shares rp_name = (parent_prefix.empty? ? "" : parent_prefix + "/") rp_name += rp.name rp_info << "\nRESOURCE_POOL = [" rp_info << "NAME=\"#{rp_name}\"," rp_info << "CPU_EXPANDABLE=#{}," rp_info << "CPU_LIMIT=#{cpu_limit}," rp_info << "CPU_RESERVATION=#{cpu_reservation}," rp_info << "CPU_RESERVATION_NUM_CORES=#{cpu_num}," rp_info << "CPU_SHARES=#{cpu_shares}," rp_info << "CPU_SHARES_LEVEL=#{cpu_shares_level}," rp_info << "MEM_EXPANDABLE=#{}," rp_info << "MEM_LIMIT=#{mem_limit}," rp_info << "MEM_RESERVATION=#{mem_reservation}," rp_info << "MEM_SHARES=#{mem_shares}," rp_info << "MEM_SHARES_LEVEL=#{mem_shares_level}" rp_info << "]" if rp.resourcePool.size != 0 rp_info << monitor_resource_pools(rp, rp_name, mhz_core) end } return rp_info end |
#monitor_vms ⇒ Object
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# File 'lib/vcenter_driver.rb', line 1253 def monitor_vms # Only monitor from top level (Resource) Resource Pool monitor_vms_in_rp(@resource_pools[-1]) end |
#monitor_vms_in_rp(rp) ⇒ Object
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# File 'lib/vcenter_driver.rb', line 1259 def monitor_vms_in_rp(rp) str_info = "" if rp.resourcePool.size != 0 rp.resourcePool.each{|child_rp| str_info += monitor_vms_in_rp(child_rp) } end host_cache = {} rp.vm.each { |v| begin # Check cached objects if !host_cache[v.runtime.host.to_s] host_cache[v.runtime.host.to_s] = VCenterCachedHost.new v.runtime.host end host = host_cache[v.runtime.host.to_s] name = v.name number = -1 vm_extra_config = v.config.extraConfig # Check the running flag running_flag = v.config.extraConfig.select{|val| val[:key]=="opennebula.vm.running"} if running_flag.size > 0 and running_flag[0] running_flag = running_flag[0][:value] end next if running_flag == "no" # Extract vmid if possible matches = name.match(/^one-(\d*)(-(.*))?$/) number = matches[1] if matches extraconfig_vmid = v.config.extraConfig.select{|val| val[:key]=="opennebula.vm.id"} if extraconfig_vmid.size > 0 and extraconfig_vmid[0] number = extraconfig_vmid[0][:value] end vm = VCenterVm.new(@client, v) vm.monitor(host) next if !vm.vm.config str_info << "\nVM = [" str_info << "ID=#{number}," str_info << "DEPLOY_ID=\"#{vm.vm.config.uuid}\"," str_info << "VM_NAME=\"#{name} - "\ "#{host.cluster_name}\"," if number == -1 vm_template_to_one = Base64.encode64(vm.vm_to_one(host)).gsub("\n","") str_info << "IMPORT_TEMPLATE=\"#{vm_template_to_one}\"," end str_info << "POLL=\"#{vm.info}\"]" rescue Exception => e STDERR.puts e.inspect STDERR.puts e.backtrace end } return str_info end |