mirror of
https://github.com/ansible-collections/community.general.git
synced 2025-07-23 13:20:23 -07:00
[aws] Create classes for Application Load Balancer (#33769)
* Create classes for Application Load Balancer * Add unsupported CI alias * Add AWSRetry * Add integration tests using the ALB
This commit is contained in:
Rob
Ryan Brown
parent
8ac69b0a5f
commit
b5cffe8ced
14 changed files with 1568 additions and 762 deletions
110
lib/ansible/module_utils/aws/elb_utils.py
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110
lib/ansible/module_utils/aws/elb_utils.py
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@ -0,0 +1,110 @@
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#!/usr/bin/env python
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# Copyright (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from ansible.module_utils.ec2 import AWSRetry
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# Non-ansible imports
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try:
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from botocore.exceptions import BotoCoreError, ClientError
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except ImportError:
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pass
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def get_elb(connection, module, elb_name):
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"""
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Get an ELB based on name. If not found, return None.
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:param connection: AWS boto3 elbv2 connection
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:param module: Ansible module
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:param elb_name: Name of load balancer to get
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:return: boto3 ELB dict or None if not found
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"""
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try:
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return _get_elb(connection, module, elb_name)
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except (BotoCoreError, ClientError) as e:
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module.fail_json_aws(e)
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@AWSRetry.jittered_backoff()
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def _get_elb(connection, module, elb_name):
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"""
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Get an ELB based on name using AWSRetry. If not found, return None.
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:param connection: AWS boto3 elbv2 connection
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:param module: Ansible module
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:param elb_name: Name of load balancer to get
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:return: boto3 ELB dict or None if not found
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"""
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try:
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load_balancer_paginator = connection.get_paginator('describe_load_balancers')
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return (load_balancer_paginator.paginate(Names=[elb_name]).build_full_result())['LoadBalancers'][0]
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except (BotoCoreError, ClientError) as e:
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if e.response['Error']['Code'] == 'LoadBalancerNotFound':
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return None
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else:
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raise e
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def get_elb_listener(connection, module, elb_arn, listener_port):
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"""
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Get an ELB listener based on the port provided. If not found, return None.
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:param connection: AWS boto3 elbv2 connection
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:param module: Ansible module
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:param elb_arn: ARN of the ELB to look at
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:param listener_port: Port of the listener to look for
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:return: boto3 ELB listener dict or None if not found
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"""
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try:
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listener_paginator = connection.get_paginator('describe_listeners')
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listeners = (AWSRetry.jittered_backoff()(listener_paginator.paginate)(LoadBalancerArn=elb_arn).build_full_result())['Listeners']
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except (BotoCoreError, ClientError) as e:
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module.fail_json_aws(e)
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l = None
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for listener in listeners:
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if listener['Port'] == listener_port:
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l = listener
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break
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return l
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def get_elb_listener_rules(connection, module, listener_arn):
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"""
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Get rules for a particular ELB listener using the listener ARN.
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:param connection: AWS boto3 elbv2 connection
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:param module: Ansible module
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:param listener_arn: ARN of the ELB listener
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:return: boto3 ELB rules list
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"""
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try:
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return AWSRetry.jittered_backoff()(connection.describe_rules)(ListenerArn=listener_arn)['Rules']
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except (BotoCoreError, ClientError) as e:
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module.fail_json_aws(e)
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def convert_tg_name_to_arn(connection, module, tg_name):
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"""
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Get ARN of a target group using the target group's name
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:param connection: AWS boto3 elbv2 connection
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:param module: Ansible module
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:param tg_name: Name of the target group
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:return: target group ARN string
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"""
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try:
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response = AWSRetry.jittered_backoff()(connection.describe_target_groups)(Names=[tg_name])
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except (BotoCoreError, ClientError) as e:
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module.fail_json_aws(e)
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tg_arn = response['TargetGroups'][0]['TargetGroupArn']
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return tg_arn
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757
lib/ansible/module_utils/aws/elbv2.py
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757
lib/ansible/module_utils/aws/elbv2.py
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@ -0,0 +1,757 @@
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#!/usr/bin/env python
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# Copyright (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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# Ansible imports
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from ansible.module_utils.ec2 import camel_dict_to_snake_dict, get_ec2_security_group_ids_from_names, \
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ansible_dict_to_boto3_tag_list, boto3_tag_list_to_ansible_dict, compare_policies as compare_dicts, \
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AWSRetry
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from ansible.module_utils.aws.elb_utils import get_elb, get_elb_listener, convert_tg_name_to_arn
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# Non-ansible imports
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try:
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from botocore.exceptions import BotoCoreError, ClientError
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except ImportError:
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pass
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import traceback
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import time
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from copy import deepcopy
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class ElasticLoadBalancerV2(object):
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def __init__(self, connection, module):
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self.connection = connection
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self.module = module
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self.changed = False
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self.new_load_balancer = False
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self.scheme = module.params.get("scheme")
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self.name = module.params.get("name")
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self.subnet_mappings = module.params.get("subnet_mappings")
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self.subnets = module.params.get("subnets")
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self.deletion_protection = module.params.get("deletion_protection")
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self.wait = module.params.get("wait")
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if module.params.get("tags") is not None:
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self.tags = ansible_dict_to_boto3_tag_list(module.params.get("tags"))
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else:
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self.tags = None
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self.purge_tags = module.params.get("purge_tags")
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self.elb = get_elb(connection, module, self.name)
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if self.elb is not None:
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self.elb_attributes = self.get_elb_attributes()
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self.elb['tags'] = self.get_elb_tags()
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else:
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self.elb_attributes = None
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def wait_for_status(self, elb_arn):
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"""
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Wait for load balancer to reach 'active' status
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:param elb_arn: The load balancer ARN
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:return:
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"""
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try:
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waiter = self.connection.get_waiter('load_balancer_available')
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waiter.wait(LoadBalancerArns=[elb_arn])
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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def get_elb_attributes(self):
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"""
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Get load balancer attributes
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:return:
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"""
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try:
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attr_list = AWSRetry.jittered_backoff()(
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self.connection.describe_load_balancer_attributes
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)(LoadBalancerArn=self.elb['LoadBalancerArn'])['Attributes']
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elb_attributes = boto3_tag_list_to_ansible_dict(attr_list)
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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# Replace '.' with '_' in attribute key names to make it more Ansibley
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return dict((k.replace('.', '_'), v) for k, v in elb_attributes.items())
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def update_elb_attributes(self):
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"""
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Update the elb_attributes parameter
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:return:
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"""
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self.elb_attributes = self.get_elb_attributes()
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def get_elb_tags(self):
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"""
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Get load balancer tags
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:return:
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"""
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try:
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return AWSRetry.jittered_backoff()(
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self.connection.describe_tags
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)(ResourceArns=[self.elb['LoadBalancerArn']])['TagDescriptions'][0]['Tags']
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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def delete_tags(self, tags_to_delete):
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"""
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Delete elb tags
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:return:
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"""
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try:
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AWSRetry.jittered_backoff()(
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self.connection.remove_tags
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)(ResourceArns=[self.elb['LoadBalancerArn']], TagKeys=tags_to_delete)
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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self.changed = True
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def modify_tags(self):
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"""
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Modify elb tags
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:return:
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"""
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try:
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AWSRetry.jittered_backoff()(
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self.connection.add_tags
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)(ResourceArns=[self.elb['LoadBalancerArn']], Tags=self.tags)
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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self.changed = True
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def delete(self):
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"""
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Delete elb
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:return:
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"""
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try:
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AWSRetry.jittered_backoff()(
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self.connection.delete_load_balancer
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)(LoadBalancerArn=self.elb['LoadBalancerArn'])
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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self.changed = True
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def compare_subnets(self):
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"""
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Compare user subnets with current ELB subnets
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:return: bool True if they match otherwise False
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"""
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subnet_id_list = []
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subnets = []
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# Check if we're dealing with subnets or subnet_mappings
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if self.subnets is not None:
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# We need to first get the subnet ID from the list
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subnets = self.subnets
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if self.subnet_mappings is not None:
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# Make a list from the subnet_mappings dict
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subnets_from_mappings = []
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for subnet_mapping in self.subnet_mappings:
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subnets.append(subnet_mapping['SubnetId'])
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for subnet in self.elb['AvailabilityZones']:
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subnet_id_list.append(subnet['SubnetId'])
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if set(subnet_id_list) != set(subnets):
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return False
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else:
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return True
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def modify_subnets(self):
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"""
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Modify elb subnets to match module parameters
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:return:
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"""
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try:
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AWSRetry.jittered_backoff()(
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self.connection.set_subnets
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)(LoadBalancerArn=self.elb['LoadBalancerArn'], Subnets=self.subnets)
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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self.changed = True
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def update(self):
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"""
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Update the elb from AWS
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:return:
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"""
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self.elb = get_elb(self.connection, self.module, self.module.params.get("name"))
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self.elb['tags'] = self.get_elb_tags()
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class ApplicationLoadBalancer(ElasticLoadBalancerV2):
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def __init__(self, connection, connection_ec2, module):
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"""
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:param connection: boto3 connection
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:param module: Ansible module
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"""
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super(ApplicationLoadBalancer, self).__init__(connection, module)
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self.connection_ec2 = connection_ec2
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# Ansible module parameters specific to ALBs
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self.type = 'application'
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if module.params.get('security_groups') is not None:
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try:
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self.security_groups = AWSRetry.jittered_backoff()(
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get_ec2_security_group_ids_from_names
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)(module.params.get('security_groups'), self.connection_ec2, boto3=True)
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except ValueError as e:
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self.module.fail_json(msg=str(e), exception=traceback.format_exc())
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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else:
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self.security_groups = module.params.get('security_groups')
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self.access_logs_enabled = module.params.get("access_logs_enabled")
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self.access_logs_s3_bucket = module.params.get("access_logs_s3_bucket")
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self.access_logs_s3_prefix = module.params.get("access_logs_s3_prefix")
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self.idle_timeout = module.params.get("idle_timeout")
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def create_elb(self):
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"""
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Create a load balancer
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:return:
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"""
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# Required parameters
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params = dict()
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params['Name'] = self.name
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params['Type'] = self.type
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# Other parameters
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if self.subnets is not None:
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params['Subnets'] = self.subnets
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if self.security_groups is not None:
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params['SecurityGroups'] = self.security_groups
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params['Scheme'] = self.scheme
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if self.tags:
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params['Tags'] = self.tags
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try:
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self.elb = AWSRetry.jittered_backoff()(self.connection.create_load_balancer)(**params)['LoadBalancers'][0]
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self.changed = True
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self.new_load_balancer = True
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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if self.wait:
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self.wait_for_status(self.elb['LoadBalancerArn'])
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def modify_elb_attributes(self):
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"""
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Update ELB attributes if required
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:return:
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"""
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update_attributes = []
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if self.access_logs_enabled and self.elb_attributes['access_logs_s3_enabled'] != "true":
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update_attributes.append({'Key': 'access_logs.s3.enabled', 'Value': "true"})
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if not self.access_logs_enabled and self.elb_attributes['access_logs_s3_enabled'] != "false":
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update_attributes.append({'Key': 'access_logs.s3.enabled', 'Value': 'false'})
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if self.access_logs_s3_bucket is not None and self.access_logs_s3_bucket != self.elb_attributes['access_logs_s3_bucket']:
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update_attributes.append({'Key': 'access_logs.s3.bucket', 'Value': self.access_logs_s3_bucket})
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if self.access_logs_s3_prefix is not None and self.access_logs_s3_prefix != self.elb_attributes['access_logs_s3_prefix']:
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update_attributes.append({'Key': 'access_logs.s3.prefix', 'Value': self.access_logs_s3_prefix})
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if self.deletion_protection and self.elb_attributes['deletion_protection_enabled'] != "true":
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update_attributes.append({'Key': 'deletion_protection.enabled', 'Value': "true"})
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if self.deletion_protection is not None and not self.deletion_protection and self.elb_attributes['deletion_protection_enabled'] != "false":
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update_attributes.append({'Key': 'deletion_protection.enabled', 'Value': "false"})
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if self.idle_timeout is not None and str(self.idle_timeout) != self.elb_attributes['idle_timeout_timeout_seconds']:
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update_attributes.append({'Key': 'idle_timeout.timeout_seconds', 'Value': str(self.idle_timeout)})
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if update_attributes:
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try:
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AWSRetry.jittered_backoff()(
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self.connection.modify_load_balancer_attributes
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)(LoadBalancerArn=self.elb['LoadBalancerArn'], Attributes=update_attributes)
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self.changed = True
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except (BotoCoreError, ClientError) as e:
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# Something went wrong setting attributes. If this ELB was created during this task, delete it to leave a consistent state
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if self.new_load_balancer:
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AWSRetry.jittered_backoff()(self.connection.delete_load_balancer)(LoadBalancerArn=self.elb['LoadBalancerArn'])
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self.module.fail_json_aws(e)
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def compare_security_groups(self):
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"""
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Compare user security groups with current ELB security groups
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:return: bool True if they match otherwise False
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"""
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if set(self.elb['SecurityGroups']) != set(self.security_groups):
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return False
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else:
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return True
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def modify_security_groups(self):
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"""
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Modify elb security groups to match module parameters
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:return:
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"""
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try:
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AWSRetry.jittered_backoff()(
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self.connection.set_security_groups
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)(LoadBalancerArn=self.elb['LoadBalancerArn'], SecurityGroups=self.security_groups)
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except (BotoCoreError, ClientError) as e:
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self.module.fail_json_aws(e)
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self.changed = True
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class NetworkLoadBalancer(ElasticLoadBalancerV2):
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def __init__(self, connection, connection_ec2, module):
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"""
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:param connection: boto3 connection
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:param module: Ansible module
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"""
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super(NetworkLoadBalancer, self).__init__(connection, module)
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self.connection_ec2 = connection_ec2
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# Ansible module parameters specific to NLBs
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self.type = 'network'
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def create_elb(self):
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"""
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Create a load balancer
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:return:
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"""
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# Required parameters
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params = dict()
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params['Name'] = self.name
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params['Type'] = self.type
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# Other parameters
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if self.subnets is not None:
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params['Subnets'] = self.subnets
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params['Scheme'] = self.scheme
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if self.tags is not None:
|
||||
params['Tags'] = self.tags
|
||||
|
||||
try:
|
||||
self.elb = AWSRetry.jittered_backoff()(self.connection.create_load_balancer)(**params)['LoadBalancers'][0]
|
||||
self.changed = True
|
||||
self.new_load_balancer = True
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
if self.wait:
|
||||
self.wait_for_status(self.elb['LoadBalancerArn'])
|
||||
|
||||
def modify_elb_attributes(self):
|
||||
"""
|
||||
Update ELB attributes if required
|
||||
:return:
|
||||
"""
|
||||
|
||||
update_attributes = []
|
||||
|
||||
if self.deletion_protection and self.elb_attributes['deletion_protection_enabled'] != "true":
|
||||
update_attributes.append({'Key': 'deletion_protection.enabled', 'Value': "true"})
|
||||
if self.deletion_protection is not None and not self.deletion_protection and self.elb_attributes['deletion_protection_enabled'] != "false":
|
||||
update_attributes.append({'Key': 'deletion_protection.enabled', 'Value': "false"})
|
||||
|
||||
if update_attributes:
|
||||
try:
|
||||
AWSRetry.jittered_backoff()(
|
||||
self.connection.modify_load_balancer_attributes
|
||||
)(LoadBalancerArn=self.elb['LoadBalancerArn'], Attributes=update_attributes)
|
||||
self.changed = True
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
# Something went wrong setting attributes. If this ELB was created during this task, delete it to leave a consistent state
|
||||
if self.new_load_balancer:
|
||||
AWSRetry.jittered_backoff()(self.connection.delete_load_balancer)(LoadBalancerArn=self.elb['LoadBalancerArn'])
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
|
||||
class ELBListeners(object):
|
||||
|
||||
def __init__(self, connection, module, elb_arn):
|
||||
|
||||
self.connection = connection
|
||||
self.module = module
|
||||
self.elb_arn = elb_arn
|
||||
listeners = module.params.get("listeners")
|
||||
if listeners is not None:
|
||||
# Remove suboption argspec defaults of None from each listener
|
||||
listeners = [dict((x, listener_dict[x]) for x in listener_dict if listener_dict[x] is not None) for listener_dict in listeners]
|
||||
self.listeners = self._ensure_listeners_default_action_has_arn(listeners)
|
||||
self.current_listeners = self._get_elb_listeners()
|
||||
self.purge_listeners = module.params.get("purge_listeners")
|
||||
self.changed = False
|
||||
|
||||
def update(self):
|
||||
"""
|
||||
Update the listeners for the ELB
|
||||
|
||||
:return:
|
||||
"""
|
||||
self.current_listeners = self._get_elb_listeners()
|
||||
|
||||
def _get_elb_listeners(self):
|
||||
"""
|
||||
Get ELB listeners
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
try:
|
||||
listener_paginator = self.connection.get_paginator('describe_listeners')
|
||||
return (AWSRetry.jittered_backoff()(listener_paginator.paginate)(LoadBalancerArn=self.elb_arn).build_full_result())['Listeners']
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
def _ensure_listeners_default_action_has_arn(self, listeners):
|
||||
"""
|
||||
If a listener DefaultAction has been passed with a Target Group Name instead of ARN, lookup the ARN and
|
||||
replace the name.
|
||||
|
||||
:param listeners: a list of listener dicts
|
||||
:return: the same list of dicts ensuring that each listener DefaultActions dict has TargetGroupArn key. If a TargetGroupName key exists, it is removed.
|
||||
"""
|
||||
|
||||
if not listeners:
|
||||
listeners = []
|
||||
|
||||
for listener in listeners:
|
||||
if 'TargetGroupName' in listener['DefaultActions'][0]:
|
||||
listener['DefaultActions'][0]['TargetGroupArn'] = convert_tg_name_to_arn(self.connection, self.module,
|
||||
listener['DefaultActions'][0]['TargetGroupName'])
|
||||
del listener['DefaultActions'][0]['TargetGroupName']
|
||||
|
||||
return listeners
|
||||
|
||||
def compare_listeners(self):
|
||||
"""
|
||||
|
||||
:return:
|
||||
"""
|
||||
listeners_to_modify = []
|
||||
listeners_to_delete = []
|
||||
listeners_to_add = deepcopy(self.listeners)
|
||||
|
||||
# Check each current listener port to see if it's been passed to the module
|
||||
for current_listener in self.current_listeners:
|
||||
current_listener_passed_to_module = False
|
||||
for new_listener in self.listeners[:]:
|
||||
new_listener['Port'] = int(new_listener['Port'])
|
||||
if current_listener['Port'] == new_listener['Port']:
|
||||
current_listener_passed_to_module = True
|
||||
# Remove what we match so that what is left can be marked as 'to be added'
|
||||
listeners_to_add.remove(new_listener)
|
||||
modified_listener = self._compare_listener(current_listener, new_listener)
|
||||
if modified_listener:
|
||||
modified_listener['Port'] = current_listener['Port']
|
||||
modified_listener['ListenerArn'] = current_listener['ListenerArn']
|
||||
listeners_to_modify.append(modified_listener)
|
||||
break
|
||||
|
||||
# If the current listener was not matched against passed listeners and purge is True, mark for removal
|
||||
if not current_listener_passed_to_module and self.purge_listeners:
|
||||
listeners_to_delete.append(current_listener['ListenerArn'])
|
||||
|
||||
return listeners_to_add, listeners_to_modify, listeners_to_delete
|
||||
|
||||
def _compare_listener(self, current_listener, new_listener):
|
||||
"""
|
||||
Compare two listeners.
|
||||
|
||||
:param current_listener:
|
||||
:param new_listener:
|
||||
:return:
|
||||
"""
|
||||
|
||||
modified_listener = {}
|
||||
|
||||
# Port
|
||||
if current_listener['Port'] != new_listener['Port']:
|
||||
modified_listener['Port'] = new_listener['Port']
|
||||
|
||||
# Protocol
|
||||
if current_listener['Protocol'] != new_listener['Protocol']:
|
||||
modified_listener['Protocol'] = new_listener['Protocol']
|
||||
|
||||
# If Protocol is HTTPS, check additional attributes
|
||||
if current_listener['Protocol'] == 'HTTPS' and new_listener['Protocol'] == 'HTTPS':
|
||||
# Cert
|
||||
if current_listener['SslPolicy'] != new_listener['SslPolicy']:
|
||||
modified_listener['SslPolicy'] = new_listener['SslPolicy']
|
||||
if current_listener['Certificates'][0]['CertificateArn'] != new_listener['Certificates'][0]['CertificateArn']:
|
||||
modified_listener['Certificates'] = []
|
||||
modified_listener['Certificates'].append({})
|
||||
modified_listener['Certificates'][0]['CertificateArn'] = new_listener['Certificates'][0]['CertificateArn']
|
||||
elif current_listener['Protocol'] != 'HTTPS' and new_listener['Protocol'] == 'HTTPS':
|
||||
modified_listener['SslPolicy'] = new_listener['SslPolicy']
|
||||
modified_listener['Certificates'] = []
|
||||
modified_listener['Certificates'].append({})
|
||||
modified_listener['Certificates'][0]['CertificateArn'] = new_listener['Certificates'][0]['CertificateArn']
|
||||
|
||||
# Default action
|
||||
# We wont worry about the Action Type because it is always 'forward'
|
||||
if current_listener['DefaultActions'][0]['TargetGroupArn'] != new_listener['DefaultActions'][0]['TargetGroupArn']:
|
||||
modified_listener['DefaultActions'] = []
|
||||
modified_listener['DefaultActions'].append({})
|
||||
modified_listener['DefaultActions'][0]['TargetGroupArn'] = new_listener['DefaultActions'][0]['TargetGroupArn']
|
||||
modified_listener['DefaultActions'][0]['Type'] = 'forward'
|
||||
|
||||
if modified_listener:
|
||||
return modified_listener
|
||||
else:
|
||||
return None
|
||||
|
||||
|
||||
class ELBListener(object):
|
||||
|
||||
def __init__(self, connection, module, listener, elb_arn):
|
||||
"""
|
||||
|
||||
:param connection:
|
||||
:param module:
|
||||
:param listener:
|
||||
:param elb_arn:
|
||||
"""
|
||||
|
||||
self.connection = connection
|
||||
self.module = module
|
||||
self.listener = listener
|
||||
self.elb_arn = elb_arn
|
||||
|
||||
def add(self):
|
||||
|
||||
try:
|
||||
# Rules is not a valid parameter for create_listener
|
||||
if 'Rules' in self.listener:
|
||||
self.listener.pop('Rules')
|
||||
AWSRetry.jittered_backoff()(self.connection.create_listener)(LoadBalancerArn=self.elb_arn, **self.listener)
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
def modify(self):
|
||||
|
||||
try:
|
||||
# Rules is not a valid parameter for modify_listener
|
||||
if 'Rules' in self.listener:
|
||||
self.listener.pop('Rules')
|
||||
AWSRetry.jittered_backoff()(self.connection.modify_listener)(**self.listener)
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
def delete(self):
|
||||
|
||||
try:
|
||||
AWSRetry.jittered_backoff()(self.connection.delete_listener)(ListenerArn=self.listener)
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
|
||||
class ELBListenerRules(object):
|
||||
|
||||
def __init__(self, connection, module, elb_arn, listener_rules, listener_port):
|
||||
|
||||
self.connection = connection
|
||||
self.module = module
|
||||
self.elb_arn = elb_arn
|
||||
self.rules = self._ensure_rules_action_has_arn(listener_rules)
|
||||
self.changed = False
|
||||
|
||||
# Get listener based on port so we can use ARN
|
||||
self.current_listener = get_elb_listener(connection, module, elb_arn, listener_port)
|
||||
self.listener_arn = self.current_listener['ListenerArn']
|
||||
self.rules_to_add = deepcopy(self.rules)
|
||||
self.rules_to_modify = []
|
||||
self.rules_to_delete = []
|
||||
|
||||
# If the listener exists (i.e. has an ARN) get rules for the listener
|
||||
if 'ListenerArn' in self.current_listener:
|
||||
self.current_rules = self._get_elb_listener_rules()
|
||||
else:
|
||||
self.current_rules = []
|
||||
|
||||
def _ensure_rules_action_has_arn(self, rules):
|
||||
"""
|
||||
If a rule Action has been passed with a Target Group Name instead of ARN, lookup the ARN and
|
||||
replace the name.
|
||||
|
||||
:param rules: a list of rule dicts
|
||||
:return: the same list of dicts ensuring that each rule Actions dict has TargetGroupArn key. If a TargetGroupName key exists, it is removed.
|
||||
"""
|
||||
|
||||
for rule in rules:
|
||||
if 'TargetGroupName' in rule['Actions'][0]:
|
||||
rule['Actions'][0]['TargetGroupArn'] = convert_tg_name_to_arn(self.connection, self.module, rule['Actions'][0]['TargetGroupName'])
|
||||
del rule['Actions'][0]['TargetGroupName']
|
||||
|
||||
return rules
|
||||
|
||||
def _get_elb_listener_rules(self):
|
||||
|
||||
try:
|
||||
return AWSRetry.jittered_backoff()(self.connection.describe_rules)(ListenerArn=self.current_listener['ListenerArn'])['Rules']
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
def _compare_condition(self, current_conditions, condition):
|
||||
"""
|
||||
|
||||
:param current_conditions:
|
||||
:param condition:
|
||||
:return:
|
||||
"""
|
||||
|
||||
condition_found = False
|
||||
|
||||
for current_condition in current_conditions:
|
||||
if current_condition['Field'] == condition['Field'] and current_condition['Values'][0] == condition['Values'][0]:
|
||||
condition_found = True
|
||||
break
|
||||
|
||||
return condition_found
|
||||
|
||||
def _compare_rule(self, current_rule, new_rule):
|
||||
"""
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
modified_rule = {}
|
||||
|
||||
# Priority
|
||||
if current_rule['Priority'] != new_rule['Priority']:
|
||||
modified_rule['Priority'] = new_rule['Priority']
|
||||
|
||||
# Actions
|
||||
# We wont worry about the Action Type because it is always 'forward'
|
||||
if current_rule['Actions'][0]['TargetGroupArn'] != new_rule['Actions'][0]['TargetGroupArn']:
|
||||
modified_rule['Actions'] = []
|
||||
modified_rule['Actions'].append({})
|
||||
modified_rule['Actions'][0]['TargetGroupArn'] = new_rule['Actions'][0]['TargetGroupArn']
|
||||
modified_rule['Actions'][0]['Type'] = 'forward'
|
||||
|
||||
# Conditions
|
||||
modified_conditions = []
|
||||
for condition in new_rule['Conditions']:
|
||||
if not self._compare_condition(current_rule['Conditions'], condition):
|
||||
modified_conditions.append(condition)
|
||||
|
||||
if modified_conditions:
|
||||
modified_rule['Conditions'] = modified_conditions
|
||||
|
||||
return modified_rule
|
||||
|
||||
def compare_rules(self):
|
||||
"""
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
rules_to_modify = []
|
||||
rules_to_delete = []
|
||||
rules_to_add = deepcopy(self.rules)
|
||||
|
||||
for current_rule in self.current_rules:
|
||||
current_rule_passed_to_module = False
|
||||
for new_rule in self.rules[:]:
|
||||
if current_rule['Priority'] == new_rule['Priority']:
|
||||
current_rule_passed_to_module = True
|
||||
# Remove what we match so that what is left can be marked as 'to be added'
|
||||
rules_to_add.remove(new_rule)
|
||||
modified_rule = self._compare_rule(current_rule, new_rule)
|
||||
if modified_rule:
|
||||
modified_rule['Priority'] = int(current_rule['Priority'])
|
||||
modified_rule['RuleArn'] = current_rule['RuleArn']
|
||||
modified_rule['Actions'] = new_rule['Actions']
|
||||
modified_rule['Conditions'] = new_rule['Conditions']
|
||||
rules_to_modify.append(modified_rule)
|
||||
break
|
||||
|
||||
# If the current rule was not matched against passed rules, mark for removal
|
||||
if not current_rule_passed_to_module and not current_rule['IsDefault']:
|
||||
rules_to_delete.append(current_rule['RuleArn'])
|
||||
|
||||
return rules_to_add, rules_to_modify, rules_to_delete
|
||||
|
||||
|
||||
class ELBListenerRule(object):
|
||||
|
||||
def __init__(self, connection, module, rule, listener_arn):
|
||||
|
||||
self.connection = connection
|
||||
self.module = module
|
||||
self.rule = rule
|
||||
self.listener_arn = listener_arn
|
||||
self.changed = False
|
||||
|
||||
def create(self):
|
||||
"""
|
||||
Create a listener rule
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
try:
|
||||
self.rule['ListenerArn'] = self.listener_arn
|
||||
self.rule['Priority'] = int(self.rule['Priority'])
|
||||
AWSRetry.jittered_backoff()(self.connection.create_rule)(**self.rule)
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
self.changed = True
|
||||
|
||||
def modify(self):
|
||||
"""
|
||||
Modify a listener rule
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
try:
|
||||
del self.rule['Priority']
|
||||
AWSRetry.jittered_backoff()(self.connection.modify_rule)(**self.rule)
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
self.changed = True
|
||||
|
||||
def delete(self):
|
||||
"""
|
||||
Delete a listener rule
|
||||
|
||||
:return:
|
||||
"""
|
||||
|
||||
try:
|
||||
AWSRetry.jittered_backoff()(self.connection.delete_rule)(RuleArn=self.rule['RuleArn'])
|
||||
except (BotoCoreError, ClientError) as e:
|
||||
self.module.fail_json_aws(e)
|
||||
|
||||
self.changed = True
|
||||
Loading…
Add table
Add a link
Reference in a new issue