Class: CloudstackClient::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudstack-client/client.rb

Constant Summary collapse

@@async_poll_interval = 
2.0
@@async_timeout = 
300

Instance Method Summary collapse

Constructor Details

#initialize(api_url, api_key, secret_key) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/cloudstack-client/client.rb', line 35

def initialize(api_url, api_key, secret_key)
  @api_url = api_url
  @api_key = api_key
  @secret_key = secret_key
  @use_ssl = api_url.start_with? "https"
end

Instance Method Details

#assign_to_load_balancer_rule(name, vm_names) ⇒ Object

Assigns virtual machine or a list of virtual machines to a load balancer rule.



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# File 'lib/cloudstack-client/client.rb', line 707

def assign_to_load_balancer_rule(name, vm_names)
  id = list_load_balancer_rules(name).first['id']

  vm_ids = vm_names.map do |vm|
    get_server(vm)['id']
  end

  params = {
      'command' => 'assignToLoadBalancerRule',
      'id' => id,
      'virtualmachineids' => vm_ids.join(',')
  }
  json = send_async_request(params)
end

#associate_ip_address(network_id) ⇒ Object

Acquires and associates a public IP to an account.



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# File 'lib/cloudstack-client/client.rb', line 579

def associate_ip_address(network_id)
  params = {
      'command' => 'associateIpAddress',
      'networkid' => network_id
  }

  json = send_async_request(params)
  json['ipaddress']
end

#create_load_balancer_rule(name, publicip, private_port, public_port, options = {}) ⇒ Object

Creates a load balancing rule.



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# File 'lib/cloudstack-client/client.rb', line 689

def create_load_balancer_rule(name, publicip, private_port, public_port, options = {})
  params = {
      'command' => 'createLoadBalancerRule',
      'name' => name,
      'privateport' => private_port,
      'publicport' => public_port,
      'publicipid' => get_public_ip_address(publicip)['id']
  }
  params['algorithm'] = options[:algorithm] || 'roundrobin'
  params['openfirewall'] = options[:openfirewall] || true

  json = send_async_request(params)
  json['LoadBalancerRule']
end

#create_offering(args) ⇒ Object

Create a service offering.



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# File 'lib/cloudstack-client/client.rb', line 325

def create_offering(args)
  params = {
      'command' => 'createServiceOffering',
      'name' => args[:name],
      'cpunumber' => args[:cpunumber],
      'cpuspeed' => args[:cpuspeed],
      'displaytext' => args[:displaytext],
      'memory' => args[:memory]
  }

  if args['domain']
    params['domainid'] = list_domains(args['domain']).first["id"]
  end

  params['tags'] = args[:tags] if args[:tags]
  params['offerha'] = 'true' if args[:ha]

  json = send_request(params)
  json['serviceoffering'].first
end

#create_port_forwarding_rule(ip_address_id, private_port, protocol, public_port, virtual_machine_id) ⇒ Object

Creates a port forwarding rule.



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# File 'lib/cloudstack-client/client.rb', line 630

def create_port_forwarding_rule(ip_address_id, private_port, protocol, public_port, virtual_machine_id)
  params = {
      'command' => 'createPortForwardingRule',
      'ipAddressId' => ip_address_id,
      'privatePort' => private_port,
      'protocol' => protocol,
      'publicPort' => public_port,
      'virtualMachineId' => virtual_machine_id
  }
  json = send_async_request(params)
  json['portforwardingrule']
end

#create_server(host_name, service_name, template_name, zone_name = nil, network_names = [], project_name = nil) ⇒ Object

Deploys a new server using the specified parameters.



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# File 'lib/cloudstack-client/client.rb', line 149

def create_server(host_name, service_name, template_name, zone_name=nil, network_names=[], project_name=nil)
  if host_name then
    if get_server(host_name) then
      puts "Error: Server '#{host_name}' already exists."
      exit 1
    end
  end

  service = get_service_offering(service_name)
  if !service then
    puts "Error: Service offering '#{service_name}' is invalid"
    exit 1
  end

  template = get_template(template_name)
  if !template then
    puts "Error: Template '#{template_name}' is invalid"
    exit 1
  end

  zone = zone_name ? get_zone(zone_name) : get_default_zone
  if !zone then
    msg = zone_name ? "Zone '#{zone_name}' is invalid" : "No default zone found"
    puts "Error: #{msg}"
    exit 1
  end

  if project_name
    project = get_project(project_name)
    if !project then
      msg = "Project '#{project_name}' is invalid"
      puts "Error: #{msg}"
      exit 1
    end
  end

  networks = []
  network_names.each do |name|
    network = project_name ? get_network(name, project['id']) : get_network(name)
    if !network then
      puts "Error: Network '#{name}' not found"
      exit 1
    end
    networks << network
  end
  if networks.empty? then
    networks << get_default_network
  end
  if networks.empty? then
    puts "No default network found"
    exit 1
  end
  network_ids = networks.map { |network|
    network['id']
  }

  params = {
      'command' => 'deployVirtualMachine',
      'serviceOfferingId' => service['id'],
      'templateId' => template['id'],
      'zoneId' => zone['id'],
      'networkids' => network_ids.join(',')
  }
  params['name'] = host_name if host_name
  params['projectid'] = project['id'] if project_name

  json = send_async_request(params)
  json['virtualmachine']
end

#delete_offering(id) ⇒ Object

Delete a service offering.



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# File 'lib/cloudstack-client/client.rb', line 349

def delete_offering(id)
  params = {
      'command' => 'deleteServiceOffering',
      'id' => id
  }

  json = send_request(params)
  json['success']
end

#destroy_router(id) ⇒ Object

Destroy virtual router.



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# File 'lib/cloudstack-client/client.rb', line 759

def destroy_router(id)
  params = {
    'command' => 'destroyRouter',
    'id' => id
  }
  json = send_request(params)
  json['router'].first
end

#disassociate_ip_address(id) ⇒ Object

Disassociates an ip address from the account.

Returns true if successful, false otherwise.



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# File 'lib/cloudstack-client/client.rb', line 594

def disassociate_ip_address(id)
  params = {
      'command' => 'disassociateIpAddress',
      'id' => id
  }
  json = send_async_request(params)
  json['success']
end

#get_default_network ⇒ Object

Finds the default network.



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# File 'lib/cloudstack-client/client.rb', line 450

def get_default_network
  params = {
      'command' => 'listNetworks',
      'isDefault' => true
  }
  json = send_request(params)

  networks = json['network']
  return nil if !networks || networks.empty?

  default = networks.first
  return default if networks.length == 1

  networks.each { |n|
    if n['type'] == 'Direct' then
      default = n
      break
    end
  }

  default
end

#get_default_zone ⇒ Object

Finds the default zone for your account.



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# File 'lib/cloudstack-client/client.rb', line 535

def get_default_zone
  params = {
      'command' => 'listZones',
      'available' => 'true'
  }
  json = send_request(params)

  zones = json['zone']
  return nil unless zones

  zones.first
end

#get_network(name, project_id = nil) ⇒ Object

Finds the network with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 427

def get_network(name, project_id = nil)
  params = {
      'command' => 'listNetworks',
      'listall' => true
  }
  params['projectid'] = project_id if project_id
  json = send_request(params)

  networks = json['network']
  return nil unless networks

  networks.each { |n|
    if n['name'] == name then
      return n
    end
  }

  nil
end

#get_project(name) ⇒ Object

Get project by name.



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# File 'lib/cloudstack-client/client.rb', line 646

def get_project(name)
  params = {
      'command' => 'listProjects',
      'name' => name,
      'listall' => true,
  }
  json = send_request(params)
  json['project'] ? json['project'].first : nil
end

#get_public_ip_address(ip_address) ⇒ Object

Finds the public ip address for a given ip address string.



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# File 'lib/cloudstack-client/client.rb', line 563

def get_public_ip_address(ip_address)
  params = {
      'command' => 'listPublicIpAddresses',
      'ipaddress' => ip_address
  }
  json = send_request(params)
  ip_address = json['publicipaddress']

  return nil unless ip_address
  ip_address.first
end

#get_server(name, project_id = nil) ⇒ Object

Finds the server with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 45

def get_server(name, project_id=nil)
  params = {
      'command' => 'listVirtualMachines',
      'name' => name
  }
  params['projectid'] = project_id if project_id
  json = send_request(params)
  machines = json['virtualmachine']

  if !machines || machines.empty? then
    return nil
  end

  machines.select {|m| m['name'] == name }.first
end

#get_server_default_nic(server) ⇒ Object 



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# File 'lib/cloudstack-client/client.rb', line 118

def get_server_default_nic(server)
  server['nic'].each do |nic|
    return nic if nic['isdefault']
  end
end

#get_server_fqdn(server) ⇒ Object

Returns the fully qualified domain name for a server.



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# File 'lib/cloudstack-client/client.rb', line 103

def get_server_fqdn(server)
  return nil unless server

  nic = get_server_default_nic(server) || {}
  networks = list_networks(server['projectid']) || {}

  id = nic['networkid']
  network = networks.select { |net|
    net['id'] == id
  }.first
  return nil unless network

  "#{server['name']}.#{network['networkdomain']}"
end

#get_server_public_ip(server, cached_rules = nil) ⇒ Object

Finds the public ip for a server



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# File 'lib/cloudstack-client/client.rb', line 87

def get_server_public_ip(server, cached_rules=nil)
  return nil unless server

  # find the public ip
  nic = get_server_default_nic(server) || {}
  if nic['type'] == 'Virtual' then
    ssh_rule = get_ssh_port_forwarding_rule(server, cached_rules)
    ssh_rule ? ssh_rule['ipaddress'] : nil
  else
    nic['ipaddress']
  end
end

#get_server_state(id) ⇒ Object 



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# File 'lib/cloudstack-client/client.rb', line 61

def get_server_state(id)
  params = {
      'command' => 'listVirtualMachines',
      'id' => id
  }
  json = send_request(params)
  machine_state = json['virtualmachine'][0]['state']

  if !machine_state || machine_state.empty? then
    return nil
  end

  machine_state
end

#get_service_offering(name) ⇒ Object

Finds the service offering with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 283

def get_service_offering(name)

  # TODO: use name parameter
  # listServiceOfferings in CloudStack 2.2 doesn't seem to work
  # when the name parameter is specified. When this is fixed,
  # the name parameter should be added to the request.
  params = {
      'command' => 'listServiceOfferings'
  }
  json = send_request(params)

  services = json['serviceoffering']
  return nil unless services

  services.each { |s|
    if s['name'] == name then
      return s
    end
  }

  nil
end

#get_ssh_port_forwarding_rule(server, cached_rules = nil) ⇒ Object

Gets the SSH port forwarding rule for the specified server.



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# File 'lib/cloudstack-client/client.rb', line 618

def get_ssh_port_forwarding_rule(server, cached_rules=nil)
  rules = cached_rules || list_port_forwarding_rules || []
  rules.find_all { |r|
    r['virtualmachineid'] == server['id'] &&
        r['privateport'] == '22'&&
        r['publicport'] == '22'
  }.first
end

#get_template(name) ⇒ Object

Finds the template with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 375

def get_template(name)

  # TODO: use name parameter
  # listTemplates in CloudStack 2.2 doesn't seem to work
  # when the name parameter is specified. When this is fixed,
  # the name parameter should be added to the request.
  params = {
      'command' => 'listTemplates',
      'templateFilter' => 'executable'
  }
  json = send_request(params)

  templates = json['template']
  if !templates then
    return nil
  end

  templates.each { |t|
    if t['name'] == name then
      return t
    end
  }

  nil
end

#get_zone(name) ⇒ Object

Finds the zone with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 513

def get_zone(name)
  params = {
      'command' => 'listZones',
      'available' => 'true'
  }
  json = send_request(params)

  networks = json['zone']
  return nil unless networks

  networks.each { |z|
    if z['name'] == name then
      return z
    end
  }

  nil
end

#list_accounts(args = { :name => nil }) ⇒ Object

Lists accounts.



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# File 'lib/cloudstack-client/client.rb', line 795

def list_accounts(args = { :name => nil })
  params = {
    'command' => 'listAccounts',
    'listall' => 'true',
    'isrecursive' => 'true'
  }
  params['name'] = args[:name] if args[:name]

  json = send_request(params)
  json['account'] || []
end

#list_domains(name = nil) ⇒ Object

List domains.



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# File 'lib/cloudstack-client/client.rb', line 810

def list_domains(name = nil)
  params = {
    'command' => 'listDomains',
    'listall' => 'true',
    'isrecursive' => 'true'
  }
  params['name'] = name if name

  json = send_request(params)
  json['domain'] || []
end

#list_load_balancer_rules(name = nil, project_name = nil) ⇒ Object

List loadbalancer rules



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# File 'lib/cloudstack-client/client.rb', line 671

def list_load_balancer_rules(name = nil, project_name = nil)    
  params = {
    'command' => 'listLoadBalancerRules',
  }
  params['name'] = name if name

  if project_name
    project = get_project(project_name)
    params['projectid'] = project['id']
  end

  json = send_request(params)
  json['loadbalancerrule'] || []
end

#list_networks(project_id = nil) ⇒ Object

Lists all available networks.



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# File 'lib/cloudstack-client/client.rb', line 476

def list_networks(project_id = nil)
  params = {
      'command' => 'listNetworks',
      'listall' => true,
  }
  params['projectid'] = project_id if project_id
  json = send_request(params)
  json['network'] || []
end

#list_physical_networks ⇒ Object

Lists all physical networks.



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# File 'lib/cloudstack-client/client.rb', line 489

def list_physical_networks
  params = {
      'command' => 'listPhysicalNetworks',
  }
  json = send_request(params)
  json['physicalnetwork'] || []
end

#list_port_forwarding_rules(ip_address_id = nil) ⇒ Object

Lists all port forwarding rules.



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# File 'lib/cloudstack-client/client.rb', line 606

def list_port_forwarding_rules(ip_address_id=nil)
  params = {
      'command' => 'listPortForwardingRules'
  }
  params['ipAddressId'] = ip_address_id if ip_address_id
  json = send_request(params)
  json['portforwardingrule']
end

#list_projects ⇒ Object

Lists projects.



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# File 'lib/cloudstack-client/client.rb', line 659

def list_projects
  params = {
      'command' => 'listProjects',
      'listall' => true,
  }
  json = send_request(params)
  json['project'] || []
end

#list_routers(args = {:account => nil, :zone => nil, :projectid => nil, :status => nil, :name => nil}) ⇒ Object

Lists all virtual routers.



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# File 'lib/cloudstack-client/client.rb', line 725

def list_routers(args = {:account => nil, :zone => nil, :projectid => nil, :status => nil, :name => nil})
  params = {
      'command' => 'listRouters',
      'listall' => 'true',
      'isrecursive' => 'true'
  }
  if args[:zone]
    zone = get_zone(args[:zone])
    unless zone 
      puts "Error: Zone #{args[:zone]} not found"
      exit 1
    end
    params['zoneid'] = zone['id']  
  end
  params['projectid'] = args[:projectid] if args[:projectid]
  params['state'] = args[:status] if args[:status]
  params['name'] = args[:name] if args[:name]
  if args[:account]
     = list_accounts({name: args[:account]}).first
    unless 
      puts "Error: Account #{args[:account]} not found."
      exit 1
    end
    params['domainid'] = ["domainid"]
    params['account'] = args[:account]
  end

  json = send_request(params)
  json['router'] || []
end

#list_servers(options = {}) ⇒ Object

Lists all the servers in your account.



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# File 'lib/cloudstack-client/client.rb', line 127

def list_servers(options = {})
  params = {
    'command' => 'listVirtualMachines',
  }
  if options[:listall]
    params['listAll'] = true
    params['projectId'] = -1
    options[:account] = nil
  end
  params['projectid'] = options[:project_id] if options[:project_id]
  if options[:account]
    params['domainid'] = list_accounts({name: options[:account]}).first["domainid"]
    params['account'] = options[:account]
  end

  json = send_request(params)
  json['virtualmachine'] || []
end

#list_service_offerings(domain = nil) ⇒ Object

Lists all available service offerings.



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# File 'lib/cloudstack-client/client.rb', line 309

def list_service_offerings(domain = nil)
  params = {
      'command' => 'listServiceOfferings'
  }

  if domain
    params['domainid'] = list_domains(domain).first["id"]
  end

  json = send_request(params)
  json['serviceoffering'] || []
end

#list_templates(filter, project_id = nil) ⇒ Object

Lists all templates that match the specified filter.

Allowable filter values are:

  • featured - templates that are featured and are public

  • self - templates that have been registered/created by the owner

  • self-executable - templates that have been registered/created by the owner that can be used to deploy a new VM

  • executable - all templates that can be used to deploy a new VM

  • community - templates that are public



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# File 'lib/cloudstack-client/client.rb', line 412

def list_templates(filter, project_id = nil)
  filter ||= 'featured'
  params = {
      'command' => 'listTemplates',
      'templateFilter' => filter
  }
  params['projectid'] = project_id if project_id
  
  json = send_request(params)
  json['template'] || []
end

#list_volumes(project_id = nil) ⇒ Object

Lists all volumes.



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# File 'lib/cloudstack-client/client.rb', line 500

def list_volumes(project_id = nil)
  params = {
      'command' => 'listVolumes',
      'listall' => true,
  }
  params['projectid'] = project_id if project_id
  json = send_request(params)
  json['network'] || []
end

#list_zones ⇒ Object

Lists all available zones.



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# File 'lib/cloudstack-client/client.rb', line 551

def list_zones
  params = {
      'command' => 'listZones',
      'available' => 'true'
  }
  json = send_request(params)
  json['zone'] || []
end

#reboot_server(name) ⇒ Object

Reboot the server with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 264

def reboot_server(name)
  server = get_server(name)
  if !server || !server['id'] then
    puts "Error: Virtual machine '#{name}' does not exist"
    exit 1
  end

  params = {
      'command' => 'rebootVirtualMachine',
      'id' => server['id']
  }

  json = send_async_request(params)
  json['virtualmachine']
end

#send_async_request(params) ⇒ Object

Sends an asynchronous request and waits for the response.

The contents of the ‘jobresult’ element are returned upon completion of the command.



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# File 'lib/cloudstack-client/client.rb', line 872

def send_async_request(params)

  json = send_request(params)

  params = {
      'command' => 'queryAsyncJobResult',
      'jobId' => json['jobid']
  }

  max_tries = (@@async_timeout / @@async_poll_interval).round
  max_tries.times do
    json = send_request(params)
    status = json['jobstatus']

    print "."

    if status == 1 then
      return json['jobresult']
    elsif status == 2 then
      print "\n"
      puts "Request failed (#{json['jobresultcode']}): #{json['jobresult']}"
      exit 1
    end

    STDOUT.flush
    sleep @@async_poll_interval
  end

  print "\n"
  puts "Error: Asynchronous request timed out"
  exit 1
end

#send_request(params) ⇒ Object

Sends a synchronous request to the CloudStack API and returns the response as a Hash.

The wrapper element of the response (e.g. mycommandresponse) is discarded and the contents of that element are returned.



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# File 'lib/cloudstack-client/client.rb', line 828

def send_request(params)
  params['response'] = 'json'
  params['apiKey'] = @api_key

  params_arr = []
  params.sort.each { |elem|
    params_arr << elem[0].to_s + '=' + CGI.escape(elem[1].to_s).gsub('+', '%20').gsub(' ','%20')
  }
  data = params_arr.join('&')
  signature = OpenSSL::HMAC.digest('sha1', @secret_key, data.downcase)
  signature = Base64.encode64(signature).chomp
  signature = CGI.escape(signature)

  url = "#{@api_url}?#{data}&signature=#{signature}"

  uri = URI.parse(url)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = @use_ssl
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  begin
    response = http.request(Net::HTTP::Get.new(uri.request_uri))
  rescue
    puts "Error connecting to API:"
    puts "#{@api_url} is not reachable"
    exit 1
  end

  if !response.is_a?(Net::HTTPOK) then
    puts "Error #{response.code}: #{response.message}"
    puts JSON.pretty_generate(JSON.parse(response.body))
    puts "URL: #{url}"
    exit 1
  end

  json = JSON.parse(response.body)
  json[params['command'].downcase + 'response']
end

#start_router(id) ⇒ Object

Start virtual router.



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# File 'lib/cloudstack-client/client.rb', line 771

def start_router(id)
  params = {
    'command' => 'startRouter',
    'id' => id
  }

  json = send_async_request(params)
end

#start_server(name) ⇒ Object

Start the server with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 244

def start_server(name)
  server = get_server(name)
  if !server || !server['id'] then
    puts "Error: Virtual machine '#{name}' does not exist"
    exit 1
  end

  params = {
      'command' => 'startVirtualMachine',
      'id' => server['id']
  }

  json = send_async_request(params)
  json['virtualmachine']
end

#stop_router(id) ⇒ Object

Stop virtual router.



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# File 'lib/cloudstack-client/client.rb', line 783

def stop_router(id)
  params = {
    'command' => 'stopRouter',
    'id' => id
  }

  json = send_async_request(params)
end

#stop_server(name, forced = nil) ⇒ Object

Stops the server with the specified name.



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# File 'lib/cloudstack-client/client.rb', line 223

def stop_server(name, forced=nil)
  server = get_server(name)
  if !server || !server['id'] then
    puts "Error: Virtual machine '#{name}' does not exist"
    exit 1
  end

  params = {
      'command' => 'stopVirtualMachine',
      'id' => server['id']
  }
  params['forced'] = true if forced

  json = send_async_request(params)
  json['virtualmachine']
end

#update_offering(args) ⇒ Object 



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# File 'lib/cloudstack-client/client.rb', line 359

def update_offering(args)
  params = {
      'command' => 'updateServiceOffering',
      'id' => args['id']
  }
  params['name'] = args['name'] if args['name']
  params['displaytext'] = args['displaytext'] if args['displaytext']
  params['sortkey'] = args['sortkey'] if args['sortkey']

  json = send_request(params)
  json['serviceoffering']
end

#wait_for_server_state(id, state) ⇒ Object 



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# File 'lib/cloudstack-client/client.rb', line 76

def wait_for_server_state(id, state)
  while get_server_state(id) != state
    print '..'
    sleep 5 
  end
  state
end