def ip_addresses(self):
debug("In asgroup.py ip_addresses")
instances = self.conn.describe_auto_scaling_groups( AutoScalingGroupNames = [self.name()] )['AutoScalingGroups'][0]['Instances']
ids = [i['InstanceId'] for i in instances]
ec2_conn = util.ec2_conn()
ec2_instances = ec2_conn.describe_instances( InstanceIds = ids )['Reservations']
ips = [ instance['Instances'][0]['PublicIpAddress'] for instance in ec2_instances ]
return ips
def get_subnet_ids_by_cidrs(self, cidrs):
debug("In asgroup.y get_subnet_ids_by_cidrs")
ret = []
_ec2 = util.ec2_conn()
subnets = _ec2.describe_subnets()['Subnets']
for cidr in cidrs:
for subnet in subnets:
if subnet['CidrBlock'] == cidr:
ret.append(subnet['SubnetId'])
return ret
def get_subnet_ids_by_cidrs(self, cidrs):
debug("In asgroup.y get_subnet_ids_by_cidrs")
ret = []
_ec2 = util.ec2_conn()
subnets = _ec2.describe_subnets()['Subnets']
for cidr in cidrs:
for subnet in subnets:
if subnet['CidrBlock'] == cidr:
ret.append(subnet['SubnetId'])
return ret
def ip_addresses(self):
debug("In asgroup.py ip_addresses")
instances = self.conn.describe_auto_scaling_groups(
AutoScalingGroupNames=[self.name()
])['AutoScalingGroups'][0]['Instances']
ids = [i['InstanceId'] for i in instances]
ec2_conn = util.ec2_conn()
ec2_instances = ec2_conn.describe_instances(
InstanceIds=ids)['Reservations']
ips = [
instance['Instances'][0]['PublicIpAddress']
for instance in ec2_instances
]
return ips
def deactivate(self): # a.k.a asg destroy
# NOTE
# deleting asg logic should be in its own function
# * delete ASG by reducing capacities of asg to 0
# * delete launchconfig
#
# reducing ASG capacities to 0 triggers eventual instance
# termination
debug("In asgroup.py deactivate")
asg_name = self.name()
ag = util.as_conn()
ec2 = util.ec2_conn()
asg_info = ag.describe_auto_scaling_groups( AutoScalingGroupNames = [ asg_name ] )
if not asg_info['AutoScalingGroups']:
print("ASG does not exist. Maybe it was already deleted?")
else:
# delete the ASG
num_instances = len(asg_info['AutoScalingGroups'][0]['Instances'])
if self.get_num_instances() == 0:
pprint("There are no instances in asg: " + asg_name)
print("Deleting asg: " + asg_name)
response = ag.delete_auto_scaling_group( AutoScalingGroupName=asg_name )
util.message_integrations("Deleted ASgroup {}".format(asg_name))
else:
debug("There are " + str(num_instances) + " instances that need to be removed from asg: " + asg_name)
debug("terminating instances in asg: " + asg_name)
debug("by setting to 0 MinSize, MaxSize, DesiredCapacity")
response = ag.update_auto_scaling_group(AutoScalingGroupName = asg_name, MinSize=0, MaxSize=0, DesiredCapacity=0)
debug("Waiting 30 seconds to give AWS time to terminate the instances")
if self.get_num_instances() != 0:
util.retry(lambda: ag.delete_auto_scaling_group(AutoScalingGroupName=asg_name), 300)
if self.get_num_instances() != 0 or self.get_num_instances():
print("unable to delete instances in asg.")
return False
util.message_integrations("Deleted ASgroup {}".format(asg_name))
# if launch config exists, delete it
lc = self.lc()
if not lc.exists():
print("launchconfig does not exist. Maybe you deleted it already?")
else:
lc.deactivate()
return True
def deactivate(self): # a.k.a asg destroy
# NOTE
# deleting asg logic should be in its own function
# * delete ASG by reducing capacities of asg to 0
# * delete launchconfig
#
# reducing ASG capacities to 0 triggers eventual instance
# termination
debug("In asgroup.py deactivate")
asg_name = self.name()
ag = util.as_conn()
ec2 = util.ec2_conn()
asg_info = ag.describe_auto_scaling_groups(
AutoScalingGroupNames=[asg_name])
if not asg_info['AutoScalingGroups']:
print("ASG does not exist. Maybe it was already deleted?")
else:
# delete the ASG
num_instances = len(asg_info['AutoScalingGroups'][0]['Instances'])
if self.get_num_instances() == 0:
pprint("There are no instances in asg: " + asg_name)
print("Deleting asg: " + asg_name)
response = ag.delete_auto_scaling_group(
AutoScalingGroupName=asg_name)
util.message_integrations(
"Deleted ASgroup {}".format(asg_name))
else:
debug("There are " + str(num_instances) +
" instances that need to be removed from asg: " +
asg_name)
debug("terminating instances in asg: " + asg_name)
debug("by setting to 0 MinSize, MaxSize, DesiredCapacity")
response = ag.update_auto_scaling_group(
AutoScalingGroupName=asg_name,
MinSize=0,
MaxSize=0,
DesiredCapacity=0)
debug(
"Waiting 30 seconds to give AWS time to terminate the instances"
)
if self.get_num_instances() != 0:
util.retry(
lambda: ag.delete_auto_scaling_group(
AutoScalingGroupName=asg_name), 300)
if self.get_num_instances() != 0 or self.get_num_instances():
print("unable to delete instances in asg.")
return False
util.message_integrations(
"Deleted ASgroup {}".format(asg_name))
# if launch config exists, delete it
lc = self.lc()
if not lc.exists():
print(
"launchconfig does not exist. Maybe you deleted it already?")
else:
lc.deactivate()
return True
def deactivate(self): # a.k.a asg destroy
# NOTE
# deleting asg logic should be in its own function
# * delete ASG by reducing capacities of asg to 0
# * delete launchconfig
#
# reducing ASG capacities to 0 triggers eventual instance
# termination
debug("In asgroup.py deactivate")
asg_name = self.name()
ag = util.as_conn()
ec2 = util.ec2_conn()
asg_info = ag.describe_auto_scaling_groups( AutoScalingGroupNames = [ asg_name ] )
if not asg_info['AutoScalingGroups']:
print("ASG does not exist. Maybe it was already deleted? ")
else:
# delete the ASG
num_instances = len(asg_info['AutoScalingGroups'][0]['Instances'])
if self.get_num_instances() == 0:
pprint("There are no instances in asg: " + asg_name)
pprint("Deleting asg: " + asg_name)
response = ag.delete_auto_scaling_group( AutoScalingGroupName=asg_name )
util.message_integrations("Deleted ASgroup {}".format(asg_name))
else:
debug("There are " + str(num_instances) + " instances that need to be removed from asg: " + asg_name)
debug("terminating instances in asg: " + asg_name)
debug("by setting to 0 MinSize, MaxSize, DesiredCapacity")
response = ag.update_auto_scaling_group(AutoScalingGroupName = asg_name, MinSize=0, MaxSize=0, DesiredCapacity=0)
debug("Waiting 30 seconds to give AWS time to terminate the instances")
try:
sleep(30)
except KeyboardInterrupt:
pprint("Got impatient.")
sys.exit(1)
interval = 10
tries = 20
for x in range(0,tries):
try:
if self.get_num_instances() != 0:
raise ValueError("there are still instances in the ASG")
break
else:
# if num instances in asg is 0,
# we are clear to delete
break
except KeyboardInterrupt:
pprint("Got impatient")
sys.exit(1)
except ValueError as e:
pprint(e)
pass
try:
if e:
pprint("pausing " + str(interval) + " seconds")
sleep(interval)
else:
break
except KeyboardInterrupt:
pprint("Got impatient")
if self.get_num_instances() == 0 or not self.get_num_instances():
pprint("instances in asg deleted.")
response = ag.delete_auto_scaling_group( AutoScalingGroupName=asg_name )
util.message_integrations("Deleted ASgroup {}".format(asg_name))
else:
pprint("unable to delete instances in asg.")
# if launch config exists, delete it
lc = self.lc()
if not lc.exists():
print("launchconfig does not exist. Maybe you deleted it already?")
else:
lc.deactivate()
