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New module - meraki_mx_l3_firewall (#42326)

* Initial commig for meraki_mx_l3_firewall
- View and modify L3 firewalls applied to Meraki MX firewalls
- Initial integration tests included

* Added example documentation

* Added documentation for responses

* Documentation tweaks for typos

* PEP8 fix
This commit is contained in:
Kevin Breit 2018-07-09 04:16:30 -05:00 committed by Dag Wieers
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commit 3d3d919c11
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2018, Kevin Breit (@kbreit) <kevin.breit@kevinbreit.net>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'
}
DOCUMENTATION = r'''
---
module: meraki_mx_l3_firewall
short_description: Manage MX appliance layer 3 firewalls in the Meraki cloud
version_added: "2.7"
description:
- Allows for creation, management, and visibility into layer 3 firewalls implemented on Meraki MX firewalls.
notes:
- Module assumes a complete list of firewall rules are passed as a parameter.
- If there is interest in this module allowing manipulation of a single firewall rule, please submit an issue against this module.
options:
state:
description:
- Create or modify an organization.
choices: ['present', 'query']
default: present
org_name:
description:
- Name of organization.
- If C(clone) is specified, C(org_name) is the name of the new organization.
org_id:
description:
- ID of organization.
net_name:
description:
- Name of network which MX firewall is in.
net_id:
description:
- ID of network which MX firewall is in.
rules:
description:
- List of firewall rules.
suboptions:
policy:
description:
- Policy to apply if rule is hit.
choices: [allow, deny]
protocol:
description:
- Protocol to match against.
choices: [any, icmp, tcp, udp]
dest_port:
description:
- Comma separated list of destination port numbers to match against.
dest_cidr:
description:
- Comma separated list of CIDR notation destination networks.
src_port:
description:
- Comma separated list of source port numbers to match against.
src_cidr:
description:
- Comma separated list of CIDR notation source networks.
comment:
description:
- Optional comment to describe the firewall rule.
syslog_enabled:
description:
- Whether to log hints against the firewall rule.
- Only applicable if a syslog server is specified against the network.
syslog_default_rule:
description:
- Whether to log hits against the default firewall rule.
- Only applicable if a syslog server is specified against the network.
- This is not shown in response from Meraki. Instead, refer to the C(syslog_enabled) value in the default rule.
type: bool
default: no
author:
- Kevin Breit (@kbreit)
extends_documentation_fragment: meraki
'''
EXAMPLES = r'''
- name: Query firewall rules
meraki_mx_l3_firewall:
auth_key: abc123
org_name: YourOrg
net_name: YourNet
state: query
delegate_to: localhost
- name: Set two firewall rules
meraki_mx_l3_firewall:
auth_key: abc123
org_name: YourOrg
net_name: YourNet
state: present
rules:
- comment: Block traffic to server
src_cidr: 192.0.1.0/24
src_port: any
dest_cidr: 192.0.2.2/32
dest_port: any
protocol: any
policy: deny
- comment: Allow traffic to group of servers
src_cidr: 192.0.1.0/24
src_port: any
dest_cidr: 192.0.2.0/24
dest_port: any
protocol: any
policy: permit
delegate_to: localhost
- name: Set one firewall rule and enable logging of the default rule
meraki_mx_l3_firewall:
auth_key: abc123
org_name: YourOrg
net_name: YourNet
state: present
rules:
- comment: Block traffic to server
src_cidr: 192.0.1.0/24
src_port: any
dest_cidr: 192.0.2.2/32
dest_port: any
protocol: any
policy: deny
syslog_default_rule: yes
delegate_to: localhost
'''
RETURN = r'''
data:
description: Firewall rules associated to network.
returned: success
type: complex
contains:
comment:
description: Comment to describe the firewall rule.
returned: always
type: string
sample: Block traffic to server
src_cidr:
description: Comma separated list of CIDR notation source networks.
returned: always
type: string
sample: 192.0.1.1/32,192.0.1.2/32
src_port:
description: Comma separated list of source ports.
returned: always
type: string
sample: 80,443
dest_cidr:
description: Comma separated list of CIDR notation destination networks.
returned: always
type: string
sample: 192.0.1.1/32,192.0.1.2/32
dest_port:
description: Comma separated list of destination ports.
returned: always
type: string
sample: 80,443
protocol:
description: Network protocol for which to match against.
returned: always
type: string
sample: tcp
policy:
description: Action to take when rule is matched.
returned: always
type: string
syslog_enabled:
description: Whether to log to syslog when rule is matched.
returned: always
type: bool
sample: true
'''
import os
from ansible.module_utils.basic import AnsibleModule, json, env_fallback
from ansible.module_utils.urls import fetch_url
from ansible.module_utils._text import to_native
from ansible.module_utils.network.meraki.meraki import MerakiModule, meraki_argument_spec
def assemble_payload(meraki):
params_map = {'policy': 'policy',
'protocol': 'protocol',
'dest_port': 'destPort',
'dest_cidr': 'destCidr',
'src_port': 'srcPort',
'src_cidr': 'srcCidr',
'syslog_enabled': 'syslogEnabled',
'comment': 'comment',
}
rules = []
for rule in meraki.params['rules']:
proposed_rule = dict()
for k, v in rule.items():
proposed_rule[params_map[k]] = v
rules.append(proposed_rule)
payload = {'rules': rules}
return payload
def get_rules(meraki, net_id):
path = meraki.construct_path('get_all', net_id=net_id)
response = meraki.request(path, method='GET')
if meraki.status == 200:
return response
def main():
# define the available arguments/parameters that a user can pass to
# the module
fw_rules = dict(policy=dict(type='str', choices=['allow', 'deny']),
protocol=dict(type='str', choices=['tcp', 'udp', 'icmp', 'any']),
dest_port=dict(type='str'),
dest_cidr=dict(type='str'),
src_port=dict(type='str'),
src_cidr=dict(type='str'),
comment=dict(type='str'),
syslog_enabled=dict(type='bool', default=False),
)
argument_spec = meraki_argument_spec()
argument_spec.update(state=dict(type='str', choices=['present', 'query'], default='present'),
net_name=dict(type='str'),
net_id=dict(type='str'),
rules=dict(type='list', default=None, elements='dict', options=fw_rules),
syslog_default_rule=dict(type='bool'),
)
# seed the result dict in the object
# we primarily care about changed and state
# change is if this module effectively modified the target
# state will include any data that you want your module to pass back
# for consumption, for example, in a subsequent task
result = dict(
changed=False,
)
# the AnsibleModule object will be our abstraction working with Ansible
# this includes instantiation, a couple of common attr would be the
# args/params passed to the execution, as well as if the module
# supports check mode
module = AnsibleModule(argument_spec=argument_spec,
supports_check_mode=True,
)
meraki = MerakiModule(module, function='mx_l3_firewall')
meraki.params['follow_redirects'] = 'all'
query_urls = {'mx_l3_firewall': '/networks/{net_id}/l3FirewallRules/'}
update_urls = {'mx_l3_firewall': '/networks/{net_id}/l3FirewallRules/'}
meraki.url_catalog['get_all'].update(query_urls)
meraki.url_catalog['update'] = update_urls
payload = None
# if the user is working with this module in only check mode we do not
# want to make any changes to the environment, just return the current
# state with no modifications
# FIXME: Work with Meraki so they can implement a check mode
if module.check_mode:
meraki.exit_json(**meraki.result)
# execute checks for argument completeness
# manipulate or modify the state as needed (this is going to be the
# part where your module will do what it needs to do)
org_id = meraki.params['org_id']
orgs = None
if org_id is None:
orgs = meraki.get_orgs()
for org in orgs:
if org['name'] == meraki.params['org_name']:
org_id = org['id']
net_id = meraki.params['net_id']
if net_id is None:
if orgs is None:
orgs = meraki.get_orgs()
net_id = meraki.get_net_id(net_name=meraki.params['net_name'],
data=meraki.get_nets(org_id=org_id))
if meraki.params['state'] == 'query':
meraki.result['data'] = get_rules(meraki, net_id)
elif meraki.params['state'] == 'present':
rules = get_rules(meraki, net_id)
path = meraki.construct_path('get_all', net_id=net_id)
if meraki.params['rules']:
payload = assemble_payload(meraki)
else:
payload = dict()
update = False
if meraki.params['syslog_default_rule']:
payload['syslogDefaultRule'] = meraki.params['syslog_default_rule']
try:
if len(rules) - 1 != len(payload['rules']): # Quick and simple check to avoid more processing
update = True
if meraki.params['syslog_default_rule']:
if rules[len(rules) - 1]['syslogEnabled'] != meraki.params['syslog_default_rule']:
update = True
if update is False:
for r in range(len(rules) - 1):
if meraki.is_update_required(rules[r], payload[r]) is True:
update = True
except KeyError:
pass
if update is True:
response = meraki.request(path, method='PUT', payload=json.dumps(payload))
if meraki.status == 200:
meraki.result['data'] = response
meraki.result['changed'] = True
# in the event of a successful module execution, you will want to
# simple AnsibleModule.exit_json(), passing the key/value results
meraki.exit_json(**meraki.result)
if __name__ == '__main__':
main()

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# Test code for the Meraki Organization module
# Copyright: (c) 2018, Kevin Breit (@kbreit)
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
---
- block:
- name: Test an API key is provided
fail:
msg: Please define an API key
when: auth_key is not defined
- name: Use an invalid domain
meraki_organization:
auth_key: '{{ auth_key }}'
host: marrrraki.com
state: present
org_name: IntTestOrg
output_level: debug
delegate_to: localhost
register: invalid_domain
ignore_errors: yes
- name: Disable HTTP
meraki_organization:
auth_key: '{{ auth_key }}'
use_https: false
state: query
output_level: debug
delegate_to: localhost
register: http
ignore_errors: yes
- name: Connection assertions
assert:
that:
- '"Failed to connect to" in invalid_domain.msg'
- '"http" in http.url'
- name: Create network
meraki_network:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: present
type: appliance
delegate_to: localhost
- name: Query firewall rules
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: query
delegate_to: localhost
register: query
- debug:
msg: '{{query}}'
- assert:
that:
- query.data|length == 1
- name: Set one firewall rule
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: present
rules:
- comment: Deny to documentation address
src_port: any
src_cidr: any
dest_port: 80,443
dest_cidr: 192.0.1.1/32
protocol: tcp
policy: deny
delegate_to: localhost
register: create_one
- assert:
that:
- create_one.data|length == 2
- create_one.data.0.destCidr == '192.0.1.1/32'
- create_one.data.0.protocol == 'tcp'
- create_one.data.0.policy == 'deny'
- create_one.changed == True
- name: Check for idempotency
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: present
rules:
- comment: Deny to documentation address
src_port: any
src_cidr: any
dest_port: 80,443
dest_cidr: 192.0.1.1/32
protocol: tcp
policy: deny
delegate_to: localhost
register: create_one_idempotent
- debug:
msg: '{{create_one_idempotent}}'
- assert:
that:
- create_one_idempotent.changed == False
- name: Enable syslog for default rule
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: present
rules:
- comment: Deny to documentation address
src_port: any
src_cidr: any
dest_port: 80,443
dest_cidr: 192.0.1.1/32
protocol: tcp
policy: deny
syslog_default_rule: yes
delegate_to: localhost
register: default_syslog
- debug:
msg: '{{default_syslog}}'
- name: Query firewall rules
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: query
delegate_to: localhost
register: query
- debug:
msg: '{{query.data.1}}'
- assert:
that:
- query.data.1.syslogEnabled == True
always:
- name: Delete all firewall rules
meraki_mx_l3_firewall:
auth_key: '{{ auth_key }}'
org_name: '{{test_org_name}}'
net_name: TestNetAppliance
state: present
rules: []
delegate_to: localhost
register: delete_all