def get_cloud_params(self, keyname):
"""Searches through the locations.json file with key
'infrastructure_info' to build a dict containing the
parameters necessary to interact with Amazon EC2.
Args:
keyname: The name of the SSH keypair that uniquely identifies this
AppScale deployment.
"""
params = {
self.PARAM_CREDENTIALS: {},
self.PARAM_GROUP: LocalState.get_group(keyname),
self.PARAM_KEYNAME: keyname
}
zone = LocalState.get_zone(keyname)
if zone:
params[self.PARAM_REGION] = zone[:-1]
else:
params[self.PARAM_REGION] = self.DEFAULT_REGION
for credential in self.REQUIRED_CREDENTIALS:
cred = LocalState.get_infrastructure_option(tag=credential,
keyname=keyname)
if not cred:
raise AgentConfigurationException("no " + credential)
params[self.PARAM_CREDENTIALS][credential] = cred
return params
def add_instances(cls, options):
"""Adds additional machines to an AppScale deployment.
Args:
options: A Namespace that has fields for each parameter that can be
passed in via the command-line interface.
"""
if 'master' in options.ips.keys():
raise BadConfigurationException("Cannot add master nodes to an " + \
"already running AppScale deployment.")
# In virtualized cluster deployments, we need to make sure that the user
# has already set up SSH keys.
if LocalState.get_infrastructure_option(keyname=options.keyname,
tag='infrastructure') == "xen":
ips_to_check = []
for ip_group in options.ips.values():
ips_to_check.extend(ip_group)
for ip in ips_to_check:
# throws a ShellException if the SSH key doesn't work
RemoteHelper.ssh(ip, options.keyname, "ls")
# Finally, find an AppController and send it a message to add
# the given nodes with the new roles.
AppScaleLogger.log("Sending request to add instances")
load_balancer_ip = LocalState.get_host_with_role(
options.keyname, 'load_balancer')
acc = AppControllerClient(load_balancer_ip, LocalState.get_secret_key(
options.keyname))
acc.start_roles_on_nodes(json.dumps(options.ips))
# TODO(cgb): Should we wait for the new instances to come up and get
# initialized?
AppScaleLogger.success("Successfully sent request to add instances " + \
"to this AppScale deployment.")
def get_cloud_params(self, keyname):
"""Searches through the locations.json file with key
'infrastructure_info' to build a dict containing the
parameters necessary to interact with Amazon EC2.
Args:
keyname: The name of the SSH keypair that uniquely identifies this
AppScale deployment.
"""
params = {
self.PARAM_CREDENTIALS : {},
self.PARAM_GROUP : LocalState.get_group(keyname),
self.PARAM_KEYNAME : keyname
}
zone = LocalState.get_zone(keyname)
if zone:
params[self.PARAM_REGION] = zone[:-1]
else:
params[self.PARAM_REGION] = self.DEFAULT_REGION
for credential in self.REQUIRED_CREDENTIALS:
cred = LocalState.get_infrastructure_option(tag=credential,
keyname=keyname)
if not cred:
raise AgentConfigurationException("no " + credential)
params[self.PARAM_CREDENTIALS][credential] = cred
return params
