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author | Szilard Cserey <szilard.cserey@ericsson.com> | 2015-06-17 12:14:54 +0200 |
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committer | Szilard Cserey <szilard.cserey@ericsson.com> | 2015-06-17 12:15:49 +0200 |
commit | fbac78cb5277b044f3318c831d4da92663097a6c (patch) | |
tree | 3fc5b70bfc68977159f39ca663252be3ab8ab07c /fuel/deploy/environments/libvirt_environment.py | |
parent | eb887812da568cfb4908f6ae14449b2ceaeb5bc0 (diff) |
Fuel Config Reap + Additional Refactoring for Autodeployment
1. Refactor the whole autodeployment code in such a way that
the preparation of Fuel VM + networking and the autodeployment itself
can be executed all at once
2. Functionality added that allows reaping of Fuel configuration from
an existing environment and create DHA and DEA configuration files from it
JIRA: [BGS-2] Create Fuel deployment script
Change-Id: Ia22ae9b050085aaa4cadb4ee6c7bfd556c4bc18a
Signed-off-by: Szilard Cserey <szilard.cserey@ericsson.com>
Diffstat (limited to 'fuel/deploy/environments/libvirt_environment.py')
-rw-r--r-- | fuel/deploy/environments/libvirt_environment.py | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/fuel/deploy/environments/libvirt_environment.py b/fuel/deploy/environments/libvirt_environment.py new file mode 100644 index 0000000..e156fd2 --- /dev/null +++ b/fuel/deploy/environments/libvirt_environment.py @@ -0,0 +1,93 @@ +from lxml import etree +import glob + +import common +from execution_environment import ExecutionEnvironment + +exec_cmd = common.exec_cmd +err = common.err +log = common.log +check_dir_exists = common.check_dir_exists +check_file_exists = common.check_file_exists +check_if_root = common.check_if_root + +NET_DIR = 'libvirt/networks' + +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, NET_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) + exec_cmd('rm -fr %s' % temp_dir) + + 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_if_root() + check_dir_exists(self.network_dir) + self.cleanup_environment() + self.create_vms() + self.create_networks() + + def cleanup_environment(self): + self.delete_vms() + self.delete_networks() |