def update_service_elb(service):
conn = connect_ec2_elb()
service_lb = service.get_loadbalancer()
lbs = conn.get_all_load_balancers(load_balancer_names=[service_lb.name])
if len(lbs) > 0:
lb = lbs[0]
LoadBalancer.update(service_lb.uuid, elb_dns_name=lb.dns_name)
def deactivate_instance(host, service):
conn = connect_ec2_elb()
lbs = conn.get_all_load_balancers(load_balancer_names=[service.get_loadbalancer().name])
if len(lbs) > 0:
lb = lbs[0]
lb.deregister_instances([host.instance_id])
return host.activate(service, active=False)
return host
def delete_service_elb(service):
conn = connect_ec2_elb()
lbs = conn.get_all_load_balancers(load_balancer_names=[service.get_loadbalancer().name])
if len(lbs) > 0:
lb = lbs[0]
lb.delete()
LoadBalancer.delete(service.get_loadbalancer().uuid)
return service
def create_service_elb(service, name):
conn = connect_ec2_elb()
lb = None
try:
lbs = conn.get_all_load_balancers(load_balancer_names=[name])
if len(lbs) > 0:
lb = lbs[0]
except:
pass
if lb is None:
ports = [(80, service.external_port, 'http')]
if not service.internal:
ports.append((443, service.external_port, 'https', config.CERTIFICATE_ID))
if service.internal:
scheme = 'internal'
subnets = [config.PRIVATE_SUBNET_ID]
security_group_ids = config.PRIVATE_LB_SG
else:
scheme = 'internet-facing'
subnets = [config.PUBLIC_SUBNET_ID]
security_group_ids = config.PUBLIC_LB_SG
lb = conn.create_load_balancer(name,
[],
listeners=ports,
scheme=scheme,
security_groups=security_group_ids,
subnets=subnets)
hc = HealthCheck(
interval=60,
healthy_threshold=3,
unhealthy_threshold=5,
target='HTTP:{}/index.html'.format(service.external_port)
)
lb.configure_health_check(hc)
lb = LoadBalancer.create(service_uuid=service.uuid, elb_dns_name=lb.dns_name, name=name)