def delete_efs():
efss = u.get_efs_dict()
efs_id = efss.get(EFS_NAME, '')
efs_client = u.create_efs_client()
if efs_id:
try:
# delete mount targets first
print("About to delete %s (%s)" % (efs_id, EFS_NAME))
response = efs_client.describe_mount_targets(FileSystemId=efs_id)
assert u.is_good_response(response)
for mount_response in response['MountTargets']:
subnet = ec2.Subnet(mount_response['SubnetId'])
zone = subnet.availability_zone
state = mount_response['LifeCycleState']
id = mount_response['MountTargetId']
ip = mount_response['IpAddress']
sys.stdout.write('Deleting mount target %s ... ' % (id, ))
sys.stdout.flush()
response = efs_client.delete_mount_target(MountTargetId=id)
print(response_type(response))
sys.stdout.write('Deleting EFS %s (%s)... ' % (efs_id, EFS_NAME))
sys.stdout.flush()
u.delete_efs_id(efs_id)
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
def create_resources():
region = u.get_region()
print("Creating %s resources in region %s" % (
DEFAULT_NAME,
region,
))
vpc, security_group = network_setup()
keypair = keypair_setup() # saves private key locally to keypair_fn
# create EFS
efss = u.get_efs_dict()
efs_id = efss.get(DEFAULT_NAME, '')
if not efs_id:
print("Creating EFS " + DEFAULT_NAME)
efs_id = u.create_efs(DEFAULT_NAME)
else:
print("Reusing EFS " + DEFAULT_NAME)
efs_client = u.create_efs_client()
# create mount target for each subnet in the VPC
# added retries because efs is not immediately available
MAX_FAILURES = 10
RETRY_INTERVAL_SEC = 1
for subnet in vpc.subnets.all():
for retry_attempt in range(MAX_FAILURES):
try:
sys.stdout.write("Creating efs mount target for %s ... " %
(subnet.availability_zone, ))
sys.stdout.flush()
response = efs_client.create_mount_target(
FileSystemId=efs_id,
SubnetId=subnet.id,
SecurityGroups=[security_group.id])
if u.is_good_response(response):
print("success")
break
except Exception as e:
if 'already exists' in str(
e): # ignore "already exists" errors
print('already exists')
break
# Takes couple of seconds for EFS to come online, with
# errors like this:
# Creating efs mount target for us-east-1f ... Failed with An error occurred (IncorrectFileSystemLifeCycleState) when calling the CreateMountTarget operation: None, retrying in 1 sec
print("Got %s, retrying in %s sec" %
(str(e), RETRY_INTERVAL_SEC))
time.sleep(RETRY_INTERVAL_SEC)
else:
print("Giving up.")
def main():
# TODO: also bring down all the instances and wait for them to come down
region = os.environ['AWS_DEFAULT_REGION']
if DEFAULT_NAME == 'nexus':
print("Nexus resources are protected, don't delete them")
sys.exit()
print("Deleting %s resources in region %s" % (
DEFAULT_NAME,
region,
))
existing_vpcs = u.get_vpc_dict()
client = u.create_ec2_client()
ec2 = u.create_ec2_resource()
def response_type(response):
return 'ok' if u.is_good_response(response) else 'failed'
# delete EFS
efss = u.get_efs_dict()
efs_id = efss.get(DEFAULT_NAME, '')
efs_client = u.create_efs_client()
if efs_id:
try:
# delete mount targets first
print("About to delete %s (%s)" % (efs_id, DEFAULT_NAME))
response = efs_client.describe_mount_targets(FileSystemId=efs_id)
assert u.is_good_response(response)
for mount_response in response['MountTargets']:
subnet = ec2.Subnet(mount_response['SubnetId'])
zone = subnet.availability_zone
state = mount_response['LifeCycleState']
id = mount_response['MountTargetId']
ip = mount_response['IpAddress']
sys.stdout.write('Deleting mount target %s ... ' % (id, ))
sys.stdout.flush()
response = efs_client.delete_mount_target(MountTargetId=id)
print(response_type(response))
sys.stdout.write('Deleting EFS %s (%s)... ' %
(efs_id, DEFAULT_NAME))
sys.stdout.flush()
u.delete_efs_id(efs_id)
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
if VPC_NAME in existing_vpcs:
vpc = ec2.Vpc(existing_vpcs[VPC_NAME].id)
print("Deleting VPC %s (%s) subresources:" % (VPC_NAME, vpc.id))
for subnet in vpc.subnets.all():
try:
sys.stdout.write("Deleting subnet %s ... " % (subnet.id))
sys.stdout.write(response_type(subnet.delete()) + '\n')
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
for gateway in vpc.internet_gateways.all():
sys.stdout.write("Deleting gateway %s ... " % (gateway.id))
# todo: if instances are using VPC, this fails with
# botocore.exceptions.ClientError: An error occurred (DependencyViolation) when calling the DetachInternetGateway operation: Network vpc-ca4abab3 has some mapped public address(es). Please unmap those public address(es) before detaching the gateway.
sys.stdout.write('detached ... ' if u.is_good_response(
gateway.detach_from_vpc(VpcId=vpc.id)) else ' detach_failed ')
sys.stdout.write('deleted ' if u.is_good_response(gateway.delete(
)) else ' delete_failed ')
sys.stdout.write('\n')
def desc(route_table):
return "%s (%s)" % (route_table.id, u.get_name(route_table.tags))
for route_table in vpc.route_tables.all():
sys.stdout.write("Deleting route table %s ... " %
(desc(route_table)))
try:
sys.stdout.write(response_type(route_table.delete()) + '\n')
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
def desc(security_group):
return "%s (%s, %s)" % (security_group.id,
u.get_name(security_group.tags),
security_group.group_name)
# TODO: this tries to remove default security group, maybe not remove it?
for security_group in vpc.security_groups.all():
sys.stdout.write('Deleting security group %s ... ' %
(desc(security_group)))
try:
sys.stdout.write(response_type(security_group.delete()) + '\n')
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
sys.stdout.write("Deleting VPC %s ... " % (vpc.id))
sys.stdout.write(response_type(vpc.delete()) + '\n')
# delete keypair
keypairs = u.get_keypair_dict()
keypair = keypairs.get(DEFAULT_NAME, '')
if keypair:
try:
sys.stdout.write("Deleting keypair %s (%s) ... " %
(keypair.key_name, DEFAULT_NAME))
sys.stdout.write(response_type(keypair.delete()) + '\n')
except Exception as e:
sys.stdout.write('failed\n')
u.loge(str(e) + '\n')
keypair_fn = u.get_keypair_fn(KEYPAIR_NAME)
if os.path.exists(keypair_fn):
print("Deleting local keypair file %s" % (keypair_fn, ))
os.system('rm -f ' + keypair_fn)