def build_instances(self, global_config, metadata=None):
"""
Build a set of instances on Openstack using the given list of configurations.
Each configuration is expected to contain the following keywords: DISTRIBUTION,
INSTANCE_NAME, SECURITY_GROUP, FLAVOR, OS1_KEY, and CLOUD_CONFIG, al defined in config_utils.
The configurations will have the 'user', 'host_string' and 'server' keys added, which will contain
the user to SSH in as, the host string for Fabric, and the novaclient.v1_1.server.Server created.
:param global_config: The structure dictionary produced by the configuration parser
:type global_config: dict
:param metadata: The metadata to attach to the instances. Limit to 5 keys, 255 character values
:type metadata: dict
"""
for instance in config_utils.config_generator(global_config):
# Build the base instance
image = self.get_distribution_image(
instance[config_utils.DISTRIBUTION])
cloud_config = instance.get(config_utils.CLOUD_CONFIG)
instance_name = instance[config_utils.INSTANCE_NAME]
security_group = instance[config_utils.SECURITY_GROUP]
flavor = instance[config_utils.FLAVOR]
os1_key = instance[config_utils.OS1_KEY]
server = self.create_instance(image.id, instance_name,
security_group, flavor, os1_key,
metadata, cloud_config)
instance[config_utils.SYSTEM_USER] = image.metadata.get(
config_utils.SYSTEM_USER, 'cloud-user').encode('ascii')
instance[config_utils.NOVA_SERVER] = server.id
# Wait until all the instances are active, then set necessary configs
flattened_list = config_utils.flatten_structure(global_config)
servers = [
instance[config_utils.NOVA_SERVER] for instance in flattened_list
]
self.wait_for_active_instances(servers)
for instance_config in config_utils.config_generator(global_config):
instance_ip = self.get_instance_floating_ip(
instance_config[config_utils.NOVA_SERVER])
user = global_config.get('username',
instance_config[config_utils.SYSTEM_USER])
instance_config[
config_utils.HOST_STRING] = user + '@' + instance_ip
def configure_instances(global_config):
"""
Configure the root instance and each decedent. Any configuration results are written to
the given dictionary
:param global_config: The instance structure dictionary from the configuration parser
:type global_config: dict
"""
# This should eventually use multi-threading to configure independent machines concurrently
for instance in config_generator(global_config):
# Configure the instance
config_function = CONFIGURATION_FUNCTIONS[instance[ROLE]]
config_function(instance[INSTANCE_NAME], global_config)
def configure_instances(global_config):
"""
Configure the root instance and each decedent. Any configuration results are written to
the given dictionary
:param global_config: The instance structure dictionary from the configuration parser
:type global_config: dict
"""
# This should eventually use multi-threading to configure independent machines concurrently
for instance in config_generator(global_config):
# Configure the instance
config_function = CONFIGURATION_FUNCTIONS[instance[ROLE]]
config_function(instance[INSTANCE_NAME], global_config)
def build_instances(self, global_config, metadata=None):
"""
Build a set of instances on Openstack using the given list of configurations.
Each configuration is expected to contain the following keywords: DISTRIBUTION,
INSTANCE_NAME, SECURITY_GROUP, FLAVOR, OS1_KEY, and CLOUD_CONFIG, al defined in config_utils.
The configurations will have the 'user', 'host_string' and 'server' keys added, which will contain
the user to SSH in as, the host string for Fabric, and the novaclient.v1_1.server.Server created.
:param global_config: The structure dictionary produced by the configuration parser
:type global_config: dict
:param metadata: The metadata to attach to the instances. Limit to 5 keys, 255 character values
:type metadata: dict
"""
for instance in config_utils.config_generator(global_config):
# Build the base instance
image = self.get_distribution_image(instance[config_utils.DISTRIBUTION])
cloud_config = instance.get(config_utils.CLOUD_CONFIG)
instance_name = instance[config_utils.INSTANCE_NAME]
security_group = instance[config_utils.SECURITY_GROUP]
flavor = instance[config_utils.FLAVOR]
os1_key = instance[config_utils.OS1_KEY]
server = self.create_instance(image.id, instance_name, security_group, flavor, os1_key,
metadata, cloud_config)
instance[config_utils.SYSTEM_USER] = image.metadata.get(config_utils.SYSTEM_USER, 'cloud-user').encode('ascii')
instance[config_utils.NOVA_SERVER] = server.id
# Wait until all the instances are active, then set necessary configs
flattened_list = config_utils.flatten_structure(global_config)
servers = [instance[config_utils.NOVA_SERVER] for instance in flattened_list]
self.wait_for_active_instances(servers)
for instance_config in config_utils.config_generator(global_config):
instance_ip = self.get_instance_floating_ip(instance_config[config_utils.NOVA_SERVER])
user = global_config.get('username', instance_config[config_utils.SYSTEM_USER])
instance_config[config_utils.HOST_STRING] = user + '@' + instance_ip
def teardown_instances(self, configuration):
"""
Delete all instances in the given configuration dictionary
:param configuration: A dictionary parsed by config_utils
:type configuration: dict
"""
self._authenticate()
for instance in config_utils.config_generator(configuration):
if config_utils.NOVA_SERVER in instance:
try:
server = self.nova.servers.get(instance[config_utils.NOVA_SERVER])
self.nova.servers.delete(server)
except NotFound:
print 'Failed to find server [%s]' % instance[config_utils.NOVA_SERVER]
def teardown_instances(self, configuration):
"""
Delete all instances in the given configuration dictionary
:param configuration: A dictionary parsed by config_utils
:type configuration: dict
"""
self._authenticate()
for instance in config_utils.config_generator(configuration):
if config_utils.NOVA_SERVER in instance:
try:
server = self.nova.servers.get(instance[config_utils.NOVA_SERVER])
self.nova.servers.delete(server)
except NotFound:
print 'Failed to find server [%s]' % instance[config_utils.NOVA_SERVER]
