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-rw-r--r--deploy/environments/libvirt_environment.py107
1 files changed, 107 insertions, 0 deletions
diff --git a/deploy/environments/libvirt_environment.py b/deploy/environments/libvirt_environment.py
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+###############################################################################
+# Copyright (c) 2015 Ericsson AB and others.
+# szilard.cserey@ericsson.com
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+###############################################################################
+
+
+from lxml import etree
+import glob
+from execution_environment import ExecutionEnvironment
+
+from common import (
+ exec_cmd,
+ log,
+ check_dir_exists,
+ check_file_exists,
+ delete,
+)
+
+
+class LibvirtEnvironment(ExecutionEnvironment):
+
+ def __init__(self, storage_dir, dha_file, dea, root_dir):
+ super(LibvirtEnvironment, self).__init__(
+ storage_dir, dha_file, root_dir)
+ self.dea = dea
+ self.network_dir = '%s/%s' % (self.root_dir,
+ self.dha.get_virt_net_conf_dir())
+ self.node_ids = self.dha.get_all_node_ids()
+ self.net_names = self.collect_net_names()
+
+ def create_storage(self, node_id, disk_path, disk_sizes):
+ if node_id == self.fuel_node_id:
+ disk_size = disk_sizes['fuel']
+ else:
+ roles = self.dea.get_node_role(node_id)
+ role = 'controller' if 'controller' in roles else 'compute'
+ disk_size = disk_sizes[role]
+ exec_cmd('fallocate -l %s %s' % (disk_size, disk_path))
+
+ def create_vms(self):
+ temp_dir = exec_cmd('mktemp -d')
+ disk_sizes = self.dha.get_disks()
+ for node_id in self.node_ids:
+ vm_name = self.dha.get_node_property(node_id, 'libvirtName')
+ vm_template = '%s/%s' % (self.root_dir,
+ self.dha.get_node_property(
+ node_id, 'libvirtTemplate'))
+ check_file_exists(vm_template)
+ disk_path = '%s/%s.raw' % (self.storage_dir, vm_name)
+ self.create_storage(node_id, disk_path, disk_sizes)
+ temp_vm_file = '%s/%s' % (temp_dir, vm_name)
+ exec_cmd('cp %s %s' % (vm_template, temp_vm_file))
+ self.define_vm(vm_name, temp_vm_file, disk_path)
+ delete(temp_dir)
+
+ def start_vms(self):
+ for node_id in self.node_ids:
+ self.dha.node_power_on(node_id)
+
+ def create_networks(self):
+ for net_file in glob.glob('%s/*' % self.network_dir):
+ exec_cmd('virsh net-define %s' % net_file)
+ for net in self.net_names:
+ log('Creating network %s' % net)
+ exec_cmd('virsh net-autostart %s' % net)
+ exec_cmd('virsh net-start %s' % net)
+
+ def delete_networks(self):
+ for net in self.net_names:
+ log('Deleting network %s' % net)
+ exec_cmd('virsh net-destroy %s' % net, False)
+ exec_cmd('virsh net-undefine %s' % net, False)
+
+ def get_net_name(self, net_file):
+ with open(net_file) as f:
+ net_xml = etree.parse(f)
+ name_list = net_xml.xpath('/network/name')
+ for name in name_list:
+ net_name = name.text
+ return net_name
+
+ def collect_net_names(self):
+ net_list = []
+ for net_file in glob.glob('%s/*' % self.network_dir):
+ name = self.get_net_name(net_file)
+ net_list.append(name)
+ return net_list
+
+ def delete_vms(self):
+ for node_id in self.node_ids:
+ self.delete_vm(node_id)
+
+
+ def setup_environment(self):
+ check_dir_exists(self.network_dir)
+ self.cleanup_environment()
+ self.create_networks()
+ self.create_vms()
+ self.start_vms()
+
+ def cleanup_environment(self):
+ self.delete_vms()
+ self.delete_networks()