def request_gce_cluster(self, ambari_agent_vm_num, docker_num,
service_server_num, with_ambari_server, cluster_name):
"""
Request a cluster from GCE
:param ambari_agent_vm_num: number of VMs to hold Docker containers
:param docker_num: number of Docker containers inside each VM
:param service_server_num: number of VMs which has Ambari-agent directly installed (not in Docker)
:param with_ambari_server: True or False, whether to request a VM to hold Ambari-server
:param cluster_name: the name of the cluster
:return: None
"""
ambari_server_fqdn_ip_pairs = []
if with_ambari_server is True:
ambari_server_fqdn_ip_pairs = self.request_ambari_server_vm(VM.get_ambari_server_vm_name(cluster_name))
service_server_fqdn_ip_pairs = self.reqeust_service_server_vm(service_server_num,
VM.get_service_server_vm_name(cluster_name))
ambari_agent_fqdn_ip_pairs = self.request_agent_vm(ambari_agent_vm_num,
VM.get_ambari_agent_vm_name(cluster_name))
# prepare all attributes of the cluster, write to a file
self.generate_cluster_info(cluster_name, ambari_server_fqdn_ip_pairs, service_server_fqdn_ip_pairs,
ambari_agent_fqdn_ip_pairs, docker_num)
