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Increase delay and tries for ec2_vpc_net backoff - fixes #36063, fixes #37323, fixes #36078 (#37354)

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* Increase delay and tries for ec2_vpc_net backoff

Wait for DHCP option to be created in ec2_vpc_dhcp_option

Wait for all modifications to the VPC

* Use the vpc_available waiter because is uses Filters

* Missed one

* Optimize retries to only occur if the functionality is available

* Increase max wait time

* Add comments to explain what the waiters are doing
This commit is contained in:
Sloane Hertel 2018-03-15 18:07:54 -04:00 committed by Will Thames
parent cdd21e2170
commit 16f8a993a0
2 changed files with 91 additions and 14 deletions
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19
lib/ansible/modules/cloud/amazon/ec2_vpc_dhcp_option.py
View file

@ -187,7 +187,7 @@ EXAMPLES = """
import collections
import traceback
from time import sleep, time
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.ec2 import HAS_BOTO, connect_to_aws, ec2_argument_spec, get_aws_connection_info
@ -359,6 +359,23 @@ def main():
new_options['ntp-servers'],
new_options['netbios-name-servers'],
new_options['netbios-node-type'])
# wait for dhcp option to be accessible
found_dhcp_opt = False
start_time = time()
while time() < start_time + 300:
try:
found_dhcp_opt = connection.get_all_dhcp_options(dhcp_options_ids=[dhcp_option.id])
except EC2ResponseError as e:
if e.error_code == 'InvalidDhcpOptionID.NotFound':
sleep(3)
else:
module.fail_json(msg="Failed to describe DHCP options", exception=traceback.format_exc)
else:
break
if not found_dhcp_opt:
module.fail_json(msg="Failed to wait for {0} to be available.".format(dhcp_option.id))
changed = True
if params['tags']:
ensure_tags(module, connection, dhcp_option.id, params['tags'], False, module.check_mode)

86
lib/ansible/modules/cloud/amazon/ec2_vpc_net.py
View file

@ -164,6 +164,7 @@ try:
except ImportError:
pass # Handled by AnsibleAWSModule
from time import sleep, time
from ansible.module_utils.aws.core import AnsibleAWSModule
from ansible.module_utils.ec2 import (boto3_conn, get_aws_connection_info, ec2_argument_spec, camel_dict_to_snake_dict,
ansible_dict_to_boto3_tag_list, boto3_tag_list_to_ansible_dict, AWSRetry)
@ -194,23 +195,34 @@ def vpc_exists(module, vpc, name, cidr_block, multi):
return None
@AWSRetry.backoff(delay=3, tries=8, catch_extra_error_codes=['InvalidVpcID.NotFound'])
def get_classic_link_with_backoff(connection, vpc_id):
try:
return connection.describe_vpc_classic_link(VpcIds=[vpc_id])['Vpcs'][0].get('ClassicLinkEnabled')
except botocore.exceptions.ClientError as e:
if e.response["Error"]["Message"] == "The functionality you requested is not available in this region.":
return False
else:
raise
def get_vpc(module, connection, vpc_id):
# wait for vpc to be available
try:
connection.get_waiter('vpc_available').wait(VpcIds=[vpc_id])
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Unable to wait for VPC {0} to be available.".format(vpc_id))
try:
vpc_obj = AWSRetry.backoff(
delay=1, tries=5,
delay=3, tries=8,
catch_extra_error_codes=['InvalidVpcID.NotFound'],
)(connection.describe_vpcs)(VpcIds=[vpc_id])['Vpcs'][0]
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Failed to describe VPCs")
try:
classic_link = connection.describe_vpc_classic_link(VpcIds=[vpc_id])['Vpcs'][0].get('ClassicLinkEnabled')
vpc_obj['ClassicLinkEnabled'] = classic_link
except botocore.exceptions.ClientError as e:
if e.response["Error"]["Message"] == "The functionality you requested is not available in this region.":
vpc_obj['ClassicLinkEnabled'] = False
else:
module.fail_json_aws(e, msg="Failed to describe VPCs")
except botocore.exceptions.BotoCoreError as e:
vpc_obj['ClassicLinkEnabled'] = get_classic_link_with_backoff(connection, vpc_id)
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Failed to describe VPCs")
return vpc_obj
@ -231,6 +243,12 @@ def update_vpc_tags(connection, module, vpc_id, tags, name):
delay=1, tries=5,
catch_extra_error_codes=['InvalidVpcID.NotFound'],
)(connection.create_tags)(Resources=[vpc_id], Tags=tags)
# Wait for tags to be updated
expected_tags = boto3_tag_list_to_ansible_dict(tags)
filters = [{'Name': 'tag:{0}'.format(key), 'Values': [value]} for key, value in expected_tags.items()]
connection.get_waiter('vpc_available').wait(VpcIds=[vpc_id], Filters=filters)
return True
else:
return False
@ -245,6 +263,14 @@ def update_dhcp_opts(connection, module, vpc_obj, dhcp_id):
connection.associate_dhcp_options(DhcpOptionsId=dhcp_id, VpcId=vpc_obj['VpcId'])
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Failed to associate DhcpOptionsId {0}".format(dhcp_id))
try:
# Wait for DhcpOptionsId to be updated
filters = [{'Name': 'dhcp-options-id', 'Values': [dhcp_id]}]
connection.get_waiter('vpc_available').wait(VpcIds=[vpc_obj['VpcId']], Filters=filters)
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json(msg="Failed to wait for DhcpOptionsId to be updated")
return True
else:
return False
@ -258,9 +284,33 @@ def create_vpc(connection, module, cidr_block, tenancy):
module.exit_json(changed=True)
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, "Failed to create the VPC")
# wait for vpc to exist
try:
connection.get_waiter('vpc_exists').wait(VpcIds=[vpc_obj['Vpc']['VpcId']])
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Unable to wait for VPC {0} to be created.".format(vpc_obj['Vpc']['VpcId']))
return vpc_obj['Vpc']['VpcId']
def wait_for_vpc_attribute(connection, module, vpc_id, attribute, expected_value):
start_time = time()
updated = False
while time() < start_time + 300:
current_value = connection.describe_vpc_attribute(
Attribute=attribute,
VpcId=vpc_id
)['{0}{1}'.format(attribute[0].upper(), attribute[1:])]['Value']
if current_value != expected_value:
sleep(3)
else:
updated = True
break
if not updated:
module.fail_json(msg="Failed to wait for {0} to be updated".format(attribute))
def main():
argument_spec = ec2_argument_spec()
argument_spec.update(dict(
@ -316,6 +366,7 @@ def main():
if cidr['CidrBlockState']['State'] != 'disassociated')
to_add = [cidr for cidr in cidr_block if cidr not in associated_cidrs]
to_remove = [associated_cidrs[cidr] for cidr in associated_cidrs if cidr not in cidr_block]
expected_cidrs = [cidr for cidr in associated_cidrs if associated_cidrs[cidr] not in to_remove] + to_add
if len(cidr_block) > 1:
for cidr in to_add:
@ -362,10 +413,19 @@ def main():
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, "Failed to update enabled dns hostnames attribute")
try:
connection.get_waiter('vpc_available').wait(VpcIds=[vpc_id])
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, msg="Unable to wait for VPC {0} to be available.".format(vpc_id))
# wait for associated cidrs to match
if to_add or to_remove:
try:
connection.get_waiter('vpc_available').wait(
VpcIds=[vpc_id],
Filters=[{'Name': 'cidr-block-association.cidr-block', 'Values': expected_cidrs}]
)
except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
module.fail_json_aws(e, "Failed to wait for CIDRs to update")
# try to wait for enableDnsSupport and enableDnsHostnames to match
wait_for_vpc_attribute(connection, module, vpc_id, 'enableDnsSupport', dns_support)
wait_for_vpc_attribute(connection, module, vpc_id, 'enableDnsHostnames', dns_hostnames)
final_state = camel_dict_to_snake_dict(get_vpc(module, connection, vpc_id))
final_state['tags'] = boto3_tag_list_to_ansible_dict(final_state.get('tags', []))