diff options
| -rw-r--r-- | roles/lib_zabbix/library/zbx_action.py | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/roles/lib_zabbix/library/zbx_action.py b/roles/lib_zabbix/library/zbx_action.py new file mode 100644 index 000000000..d64cebae1 --- /dev/null +++ b/roles/lib_zabbix/library/zbx_action.py @@ -0,0 +1,538 @@ +#!/usr/bin/env python +''' + Ansible module for zabbix actions +''' +# vim: expandtab:tabstop=4:shiftwidth=4 +# +# Zabbix action ansible module +# +# +# Copyright 2015 Red Hat Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +# This is in place because each module looks similar to each other. +# These need duplicate code as their behavior is very similar +# but different for each zabbix class. +# pylint: disable=duplicate-code + +# pylint: disable=import-error +from openshift_tools.monitoring.zbxapi import ZabbixAPI, ZabbixConnection, ZabbixAPIError + +def exists(content, key='result'): + ''' Check if key exists in content or the size of content[key] > 0 + ''' + if not content.has_key(key): + return False + + if not content[key]: + return False + + return True + +def conditions_equal(zab_conditions, user_conditions): + '''Compare two lists of conditions''' + c_type = 'conditiontype' + _op = 'operator' + val = 'value' + if len(user_conditions) != len(zab_conditions): + return False + + for zab_cond, user_cond in zip(zab_conditions, user_conditions): + if zab_cond[c_type] != str(user_cond[c_type]) or zab_cond[_op] != str(user_cond[_op]) or \ + zab_cond[val] != str(user_cond[val]): + return False + + return True + +def filter_differences(zabbix_filters, user_filters): + '''Determine the differences from user and zabbix for operations''' + rval = {} + for key, val in user_filters.items(): + + if key == 'conditions': + if not conditions_equal(zabbix_filters[key], val): + rval[key] = val + + elif zabbix_filters[key] != str(val): + rval[key] = val + + return rval + +# This logic is quite complex. We are comparing two lists of dictionaries. +# The outer for-loops allow us to descend down into both lists at the same time +# and then walk over the key,val pairs of the incoming user dict's changes +# or updates. The if-statements are looking at different sub-object types and +# comparing them. The other suggestion on how to write this is to write a recursive +# compare function but for the time constraints and for complexity I decided to go +# this route. +# pylint: disable=too-many-branches +def operation_differences(zabbix_ops, user_ops): + '''Determine the differences from user and zabbix for operations''' + + # if they don't match, take the user options + if len(zabbix_ops) != len(user_ops): + return user_ops + + rval = {} + for zab, user in zip(zabbix_ops, user_ops): + for key, val in user.items(): + if key == 'opconditions': + for z_cond, u_cond in zip(zab[key], user[key]): + if not all([str(u_cond[op_key]) == z_cond[op_key] for op_key in \ + ['conditiontype', 'operator', 'value']]): + rval[key] = val + break + elif key == 'opmessage': + # Verify each passed param matches + for op_msg_key, op_msg_val in val.items(): + if zab[key][op_msg_key] != str(op_msg_val): + rval[key] = val + break + + elif key == 'opmessage_grp': + zab_grp_ids = set([ugrp['usrgrpid'] for ugrp in zab[key]]) + usr_grp_ids = set([ugrp['usrgrpid'] for ugrp in val]) + if usr_grp_ids != zab_grp_ids: + rval[key] = val + + elif key == 'opmessage_usr': + zab_usr_ids = set([usr['userid'] for usr in zab[key]]) + usr_ids = set([usr['userid'] for usr in val]) + if usr_ids != zab_usr_ids: + rval[key] = val + + elif zab[key] != str(val): + rval[key] = val + return rval + +def get_users(zapi, users): + '''get the mediatype id from the mediatype name''' + rval_users = [] + + for user in users: + content = zapi.get_content('user', + 'get', + {'filter': {'alias': user}}) + rval_users.append({'userid': content['result'][0]['userid']}) + + return rval_users + +def get_user_groups(zapi, groups): + '''get the mediatype id from the mediatype name''' + user_groups = [] + + content = zapi.get_content('usergroup', + 'get', + {'search': {'name': groups}}) + + for usr_grp in content['result']: + user_groups.append({'usrgrpid': usr_grp['usrgrpid']}) + + return user_groups + +def get_mediatype_id_by_name(zapi, m_name): + '''get the mediatype id from the mediatype name''' + content = zapi.get_content('mediatype', + 'get', + {'filter': {'description': m_name}}) + + return content['result'][0]['mediatypeid'] + +def get_priority(priority): + ''' determine priority + ''' + prior = 0 + if 'info' in priority: + prior = 1 + elif 'warn' in priority: + prior = 2 + elif 'avg' == priority or 'ave' in priority: + prior = 3 + elif 'high' in priority: + prior = 4 + elif 'dis' in priority: + prior = 5 + + return prior + +def get_event_source(from_src): + '''Translate even str into value''' + choices = ['trigger', 'discovery', 'auto', 'internal'] + rval = 0 + try: + rval = choices.index(from_src) + except ValueError as _: + ZabbixAPIError('Value not found for event source [%s]' % from_src) + + return rval + +def get_status(inc_status): + '''determine status for action''' + rval = 1 + if inc_status == 'enabled': + rval = 0 + + return rval + +def get_condition_operator(inc_operator): + ''' determine the condition operator''' + vals = {'=': 0, + '<>': 1, + 'like': 2, + 'not like': 3, + 'in': 4, + '>=': 5, + '<=': 6, + 'not in': 7, + } + + return vals[inc_operator] + +def get_host_id_by_name(zapi, host_name): + '''Get host id by name''' + content = zapi.get_content('host', + 'get', + {'filter': {'name': host_name}}) + + return content['result'][0]['hostid'] + +def get_trigger_value(inc_trigger): + '''determine the proper trigger value''' + rval = 1 + if inc_trigger == 'PROBLEM': + rval = 1 + else: + rval = 0 + + return rval + +def get_template_id_by_name(zapi, t_name): + '''get the template id by name''' + content = zapi.get_content('template', + 'get', + {'filter': {'host': t_name}}) + + return content['result'][0]['templateid'] + + +def get_host_group_id_by_name(zapi, hg_name): + '''Get hostgroup id by name''' + content = zapi.get_content('hostgroup', + 'get', + {'filter': {'name': hg_name}}) + + return content['result'][0]['groupid'] + +def get_condition_type(event_source, inc_condition): + '''determine the condition type''' + c_types = {} + if event_source == 'trigger': + c_types = {'host group': 0, + 'host': 1, + 'trigger': 2, + 'trigger name': 3, + 'trigger severity': 4, + 'trigger value': 5, + 'time period': 6, + 'host template': 13, + 'application': 15, + 'maintenance status': 16, + } + + elif event_source == 'discovery': + c_types = {'host IP': 7, + 'discovered service type': 8, + 'discovered service port': 9, + 'discovery status': 10, + 'uptime or downtime duration': 11, + 'received value': 12, + 'discovery rule': 18, + 'discovery check': 19, + 'proxy': 20, + 'discovery object': 21, + } + + elif event_source == 'auto': + c_types = {'proxy': 20, + 'host name': 22, + 'host metadata': 24, + } + + elif event_source == 'internal': + c_types = {'host group': 0, + 'host': 1, + 'host template': 13, + 'application': 15, + 'event type': 23, + } + else: + raise ZabbixAPIError('Unkown event source %s' % event_source) + + return c_types[inc_condition] + +def get_operation_type(inc_operation): + ''' determine the correct operation type''' + o_types = {'send message': 0, + 'remote command': 1, + 'add host': 2, + 'remove host': 3, + 'add to host group': 4, + 'remove from host group': 5, + 'link to template': 6, + 'unlink from template': 7, + 'enable host': 8, + 'disable host': 9, + } + + return o_types[inc_operation] + +def get_action_operations(zapi, inc_operations): + '''Convert the operations into syntax for api''' + for operation in inc_operations: + operation['operationtype'] = get_operation_type(operation['operationtype']) + if operation['operationtype'] == 0: # send message. Need to fix the + operation['opmessage']['mediatypeid'] = \ + get_mediatype_id_by_name(zapi, operation['opmessage']['mediatypeid']) + operation['opmessage_grp'] = get_user_groups(zapi, operation.get('opmessage_grp', [])) + operation['opmessage_usr'] = get_users(zapi, operation.get('opmessage_usr', [])) + if operation['opmessage']['default_msg']: + operation['opmessage']['default_msg'] = 1 + else: + operation['opmessage']['default_msg'] = 0 + + # NOT supported for remote commands + elif operation['operationtype'] == 1: + continue + + # Handle Operation conditions: + # Currently there is only 1 available which + # is 'event acknowledged'. In the future + # if there are any added we will need to pass this + # option to a function and return the correct conditiontype + if operation.has_key('opconditions'): + for condition in operation['opconditions']: + if condition['conditiontype'] == 'event acknowledged': + condition['conditiontype'] = 14 + + if condition['operator'] == '=': + condition['operator'] = 0 + + if condition['value'] == 'acknowledged': + condition['operator'] = 1 + else: + condition['operator'] = 0 + + + return inc_operations + +def get_operation_evaltype(inc_type): + '''get the operation evaltype''' + rval = 0 + if inc_type == 'and/or': + rval = 0 + elif inc_type == 'and': + rval = 1 + elif inc_type == 'or': + rval = 2 + elif inc_type == 'custom': + rval = 3 + + return rval + +def get_action_conditions(zapi, event_source, inc_conditions): + '''Convert the conditions into syntax for api''' + + calc_type = inc_conditions.pop('calculation_type') + inc_conditions['evaltype'] = get_operation_evaltype(calc_type) + for cond in inc_conditions['conditions']: + + cond['operator'] = get_condition_operator(cond['operator']) + # Based on conditiontype we need to set the proper value + # e.g. conditiontype = hostgroup then the value needs to be a hostgroup id + # e.g. conditiontype = host the value needs to be a host id + cond['conditiontype'] = get_condition_type(event_source, cond['conditiontype']) + if cond['conditiontype'] == 0: + cond['value'] = get_host_group_id_by_name(zapi, cond['value']) + elif cond['conditiontype'] == 1: + cond['value'] = get_host_id_by_name(zapi, cond['value']) + elif cond['conditiontype'] == 4: + cond['value'] = get_priority(cond['value']) + + elif cond['conditiontype'] == 5: + cond['value'] = get_trigger_value(cond['value']) + elif cond['conditiontype'] == 13: + cond['value'] = get_template_id_by_name(zapi, cond['value']) + elif cond['conditiontype'] == 16: + cond['value'] = '' + + return inc_conditions + + +def get_send_recovery(send_recovery): + '''Get the integer value''' + rval = 0 + if send_recovery: + rval = 1 + + return rval + +# The branches are needed for CRUD and error handling +# pylint: disable=too-many-branches +def main(): + ''' + ansible zabbix module for zbx_item + ''' + + + module = AnsibleModule( + argument_spec=dict( + zbx_server=dict(default='https://localhost/zabbix/api_jsonrpc.php', type='str'), + zbx_user=dict(default=os.environ.get('ZABBIX_USER', None), type='str'), + zbx_password=dict(default=os.environ.get('ZABBIX_PASSWORD', None), type='str'), + zbx_debug=dict(default=False, type='bool'), + + name=dict(default=None, type='str'), + event_source=dict(default='trigger', choices=['trigger', 'discovery', 'auto', 'internal'], type='str'), + action_subject=dict(default="{TRIGGER.NAME}: {TRIGGER.STATUS}", type='str'), + action_message=dict(default="{TRIGGER.NAME}: {TRIGGER.STATUS}\r\n" + + "Last value: {ITEM.LASTVALUE}\r\n\r\n{TRIGGER.URL}", type='str'), + reply_subject=dict(default="{TRIGGER.NAME}: {TRIGGER.STATUS}", type='str'), + reply_message=dict(default="Trigger: {TRIGGER.NAME}\r\nTrigger status: {TRIGGER.STATUS}\r\n" + + "Trigger severity: {TRIGGER.SEVERITY}\r\nTrigger URL: {TRIGGER.URL}\r\n\r\n" + + "Item values:\r\n\r\n1. {ITEM.NAME1} ({HOST.NAME1}:{ITEM.KEY1}): " + + "{ITEM.VALUE1}\r\n2. {ITEM.NAME2} ({HOST.NAME2}:{ITEM.KEY2}): " + + "{ITEM.VALUE2}\r\n3. {ITEM.NAME3} ({HOST.NAME3}:{ITEM.KEY3}): " + + "{ITEM.VALUE3}", type='str'), + send_recovery=dict(default=False, type='bool'), + status=dict(default=None, type='str'), + escalation_time=dict(default=60, type='int'), + conditions_filter=dict(default=None, type='dict'), + operations=dict(default=None, type='list'), + state=dict(default='present', type='str'), + ), + #supports_check_mode=True + ) + + zapi = ZabbixAPI(ZabbixConnection(module.params['zbx_server'], + module.params['zbx_user'], + module.params['zbx_password'], + module.params['zbx_debug'])) + + #Set the instance and the template for the rest of the calls + zbx_class_name = 'action' + state = module.params['state'] + + content = zapi.get_content(zbx_class_name, + 'get', + {'search': {'name': module.params['name']}, + 'selectFilter': 'extend', + 'selectOperations': 'extend', + }) + + #******# + # GET + #******# + if state == 'list': + module.exit_json(changed=False, results=content['result'], state="list") + + #******# + # DELETE + #******# + if state == 'absent': + if not exists(content): + module.exit_json(changed=False, state="absent") + + content = zapi.get_content(zbx_class_name, 'delete', [content['result'][0]['itemid']]) + module.exit_json(changed=True, results=content['result'], state="absent") + + # Create and Update + if state == 'present': + + conditions = get_action_conditions(zapi, module.params['event_source'], module.params['conditions_filter']) + operations = get_action_operations(zapi, module.params['operations']) + params = {'name': module.params['name'], + 'esc_period': module.params['escalation_time'], + 'eventsource': get_event_source(module.params['event_source']), + 'status': get_status(module.params['status']), + 'def_shortdata': module.params['action_subject'], + 'def_longdata': module.params['action_message'], + 'r_shortdata': module.params['reply_subject'], + 'r_longdata': module.params['reply_message'], + 'recovery_msg': get_send_recovery(module.params['send_recovery']), + 'filter': conditions, + 'operations': operations, + } + + # Remove any None valued params + _ = [params.pop(key, None) for key in params.keys() if params[key] is None] + + #******# + # CREATE + #******# + if not exists(content): + content = zapi.get_content(zbx_class_name, 'create', params) + + if content.has_key('error'): + module.exit_json(failed=True, changed=True, results=content['error'], state="present") + + module.exit_json(changed=True, results=content['result'], state='present') + + + ######## + # UPDATE + ######## + _ = params.pop('hostid', None) + differences = {} + zab_results = content['result'][0] + for key, value in params.items(): + + if key == 'operations': + ops = operation_differences(zab_results[key], value) + if ops: + differences[key] = ops + + elif key == 'filter': + filters = filter_differences(zab_results[key], value) + if filters: + differences[key] = filters + + elif zab_results[key] != value and zab_results[key] != str(value): + differences[key] = value + + if not differences: + module.exit_json(changed=False, results=zab_results, state="present") + + # We have differences and need to update. + # action update requires an id, filters, and operations + differences['actionid'] = zab_results['actionid'] + differences['operations'] = params['operations'] + differences['filter'] = params['filter'] + content = zapi.get_content(zbx_class_name, 'update', differences) + + if content.has_key('error'): + module.exit_json(failed=True, changed=False, results=content['error'], state="present") + + module.exit_json(changed=True, results=content['result'], state="present") + + module.exit_json(failed=True, + changed=False, + results='Unknown state passed. %s' % state, + state="unknown") + +# pylint: disable=redefined-builtin, unused-wildcard-import, wildcard-import, locally-disabled +# import module snippets. This are required +from ansible.module_utils.basic import * + +main() |