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Merge pull request Yelp#2474 from JeffAshton/kibana-discover-link
Adding support for generating Kibana Discover app link
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‎docs/source/ruletypes.rst‎

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@@ -58,6 +58,20 @@ Rule Configuration Cheat Sheet
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+--------------------------------------------------------------+ |
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| ``kibana4_end_timedelta`` (time, default: 10 min) | |
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+--------------------------------------------------------------+ |
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| ``generate_kibana_discover_url`` (boolean, default False) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_app_url`` (string, no default) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_version`` (string, no default) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_index_pattern_id`` (string, no default) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_columns`` (list of strs, default _source) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_from_timedelta`` (time, default: 10 min) | |
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+--------------------------------------------------------------+ |
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| ``kibana_discover_to_timedelta`` (time, default: 10 min) | |
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+--------------------------------------------------------------+ |
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| ``use_local_time`` (boolean, default True) | |
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+--------------------------------------------------------------+ |
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| ``realert`` (time, default: 1 min) | |
@@ -510,6 +524,85 @@ This value is added in back of the event. For example,
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``kibana4_end_timedelta: minutes: 2``
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generate_kibana_discover_url
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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``generate_kibana_discover_url``: Enables the generation of the ``kibana_discover_url`` variable for the Kibana Discover application.
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This setting requires the following settings are also configured:
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- ``kibana_discover_app_url``
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- ``kibana_discover_version``
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- ``kibana_discover_index_pattern_id``
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``generate_kibana_discover_url: true``
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kibana_discover_app_url
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^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_app_url``: The url of the Kibana Discover application used to generate the ``kibana_discover_url`` variable.
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This value can use `$VAR` and `${VAR}` references to expand environment variables.
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``kibana_discover_app_url: http://kibana:5601/#/discover``
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kibana_discover_version
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^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_version``: Specifies the version of the Kibana Discover application.
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The currently supported versions of Kibana Discover are:
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- `5.6`
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- `6.0`, `6.1`, `6.2`, `6.3`, `6.4`, `6.5`, `6.6`, `6.7`, `6.8`
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- `7.0`, `7.1`, `7.2`, `7.3`
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``kibana_discover_version: '7.3'``
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kibana_discover_index_pattern_id
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_index_pattern_id``: The id of the index pattern to link to in the Kibana Discover application.
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These ids are usually generated and can be found in url of the index pattern management page, or by exporting its saved object.
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Example export of an index pattern's saved object:
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.. code-block:: text
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[
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{
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"_id": "4e97d188-8a45-4418-8a37-07ed69b4d34c",
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"_type": "index-pattern",
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"_source": { ... }
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}
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]
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You can modify an index pattern's id by exporting the saved object, modifying the ``_id`` field, and re-importing.
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``kibana_discover_index_pattern_id: 4e97d188-8a45-4418-8a37-07ed69b4d34c``
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kibana_discover_columns
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^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_columns``: The columns to display in the generated Kibana Discover application link.
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Defaults to the ``_source`` column.
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``kibana_discover_columns: [ timestamp, message ]``
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kibana_discover_from_timedelta
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_from_timedelta``: The offset to the `from` time of the Kibana Discover link's time range.
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The `from` time is calculated by subtracting this timedelta from the event time. Defaults to 10 minutes.
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``kibana_discover_from_timedelta: minutes: 2``
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kibana_discover_to_timedelta
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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``kibana_discover_to_timedelta``: The offset to the `to` time of the Kibana Discover link's time range.
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The `to` time is calculated by adding this timedelta to the event time. Defaults to 10 minutes.
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``kibana_discover_to_timedelta: minutes: 2``
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use_local_time
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^^^^^^^^^^^^^^
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‎elastalert/elastalert.py‎

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from elasticsearch.exceptions import TransportError
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from . import kibana
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from .kibana_discover import generate_kibana_discover_url
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from .alerts import DebugAlerter
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from .config import load_conf
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from .enhancements import DropMatchException
@@ -1503,6 +1504,11 @@ def send_alert(self, matches, rule, alert_time=None, retried=False):
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if kb_link:
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matches[0]['kibana_link'] = kb_link
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if rule.get('generate_kibana_discover_url'):
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kb_link = generate_kibana_discover_url(rule, matches[0])
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if kb_link:
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matches[0]['kibana_discover_url'] = kb_link
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# Enhancements were already run at match time if
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# run_enhancements_first is set or
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# retried==True, which means this is a retry of a failed alert

‎elastalert/kibana_discover.py‎

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# -*- coding: utf-8 -*-
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# flake8: noqa
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import datetime
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import logging
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import json
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import os.path
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import prison
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import urllib.parse
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from .util import EAException
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from .util import lookup_es_key
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from .util import ts_add
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kibana_default_timedelta = datetime.timedelta(minutes=10)
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kibana5_kibana6_versions = frozenset(['5.6', '6.0', '6.1', '6.2', '6.3', '6.4', '6.5', '6.6', '6.7', '6.8'])
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kibana7_versions = frozenset(['7.0', '7.1', '7.2', '7.3'])
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def generate_kibana_discover_url(rule, match):
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''' Creates a link for a kibana discover app. '''
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discover_app_url = rule.get('kibana_discover_app_url')
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if not discover_app_url:
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logging.warning(
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'Missing kibana_discover_app_url for rule %s' % (
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rule.get('name', '<MISSING NAME>')
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)
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)
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return None
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kibana_version = rule.get('kibana_discover_version')
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if not kibana_version:
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logging.warning(
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'Missing kibana_discover_version for rule %s' % (
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rule.get('name', '<MISSING NAME>')
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)
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)
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return None
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index = rule.get('kibana_discover_index_pattern_id')
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if not index:
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logging.warning(
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'Missing kibana_discover_index_pattern_id for rule %s' % (
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rule.get('name', '<MISSING NAME>')
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)
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)
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return None
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columns = rule.get('kibana_discover_columns', ['_source'])
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filters = rule.get('filter', [])
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if 'query_key' in rule:
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query_keys = rule.get('compound_query_key', [rule['query_key']])
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else:
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query_keys = []
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timestamp = lookup_es_key(match, rule['timestamp_field'])
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timeframe = rule.get('timeframe', kibana_default_timedelta)
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from_timedelta = rule.get('kibana_discover_from_timedelta', timeframe)
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from_time = ts_add(timestamp, -from_timedelta)
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to_timedelta = rule.get('kibana_discover_to_timedelta', timeframe)
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to_time = ts_add(timestamp, to_timedelta)
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if kibana_version in kibana5_kibana6_versions:
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globalState = kibana6_disover_global_state(from_time, to_time)
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appState = kibana_discover_app_state(index, columns, filters, query_keys, match)
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elif kibana_version in kibana7_versions:
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globalState = kibana7_disover_global_state(from_time, to_time)
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appState = kibana_discover_app_state(index, columns, filters, query_keys, match)
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else:
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logging.warning(
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'Unknown kibana discover application version %s for rule %s' % (
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kibana_version,
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rule.get('name', '<MISSING NAME>')
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)
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)
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return None
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return "%s?_g=%s&_a=%s" % (
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os.path.expandvars(discover_app_url),
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urllib.parse.quote(globalState),
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urllib.parse.quote(appState)
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)
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def kibana6_disover_global_state(from_time, to_time):
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return prison.dumps( {
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'refreshInterval': {
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'pause': True,
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'value': 0
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},
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'time': {
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'from': from_time,
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'mode': 'absolute',
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'to': to_time
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}
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} )
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def kibana7_disover_global_state(from_time, to_time):
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return prison.dumps( {
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'filters': [],
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'refreshInterval': {
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'pause': True,
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'value': 0
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},
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'time': {
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'from': from_time,
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'to': to_time
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}
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} )
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def kibana_discover_app_state(index, columns, filters, query_keys, match):
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app_filters = []
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if filters:
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bool_filter = { 'must': filters }
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app_filters.append( {
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'$state': {
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'store': 'appState'
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},
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'bool': bool_filter,
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'meta': {
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'alias': 'filter',
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'disabled': False,
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'index': index,
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'key': 'bool',
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'negate': False,
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'type': 'custom',
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'value': json.dumps(bool_filter, separators=(',', ':'))
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},
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} )
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for query_key in query_keys:
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query_value = lookup_es_key(match, query_key)
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if query_value is None:
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app_filters.append( {
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'$state': {
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'store': 'appState'
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},
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'exists': {
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'field': query_key
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},
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'meta': {
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'alias': None,
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'disabled': False,
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'index': index,
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'key': query_key,
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'negate': True,
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'type': 'exists',
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'value': 'exists'
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}
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} )
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else:
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app_filters.append( {
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'$state': {
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'store': 'appState'
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},
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'meta': {
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'alias': None,
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'disabled': False,
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'index': index,
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'key': query_key,
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'negate': False,
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'params': {
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'query': query_value,
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'type': 'phrase'
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},
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'type': 'phrase',
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'value': str(query_value)
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},
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'query': {
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'match': {
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query_key: {
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'query': query_value,
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'type': 'phrase'
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}
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}
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}
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} )
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return prison.dumps( {
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'columns': columns,
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'filters': app_filters,
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'index': index,
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'interval': 'auto'
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} )

‎elastalert/loaders.py‎

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@@ -257,6 +257,10 @@ def load_options(self, rule, conf, filename, args=None):
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rule['kibana4_start_timedelta'] = datetime.timedelta(**rule['kibana4_start_timedelta'])
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if 'kibana4_end_timedelta' in rule:
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rule['kibana4_end_timedelta'] = datetime.timedelta(**rule['kibana4_end_timedelta'])
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if 'kibana_discover_from_timedelta' in rule:
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rule['kibana_discover_from_timedelta'] = datetime.timedelta(**rule['kibana_discover_from_timedelta'])
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if 'kibana_discover_to_timedelta' in rule:
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rule['kibana_discover_to_timedelta'] = datetime.timedelta(**rule['kibana_discover_to_timedelta'])
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except (KeyError, TypeError) as e:
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raise EAException('Invalid time format used: %s' % e)
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‎elastalert/schema.yaml‎

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type: [string, array]
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items: {type: [string, array]}
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timedelta: &timedelta
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type: object
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additionalProperties: false
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properties:
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days: {type: number}
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weeks: {type: number}
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hours: {type: number}
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minutes: {type: number}
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seconds: {type: number}
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milliseconds: {type: number}
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timeFrame: &timeframe
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type: object
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additionalProperties: false
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replace_dots_in_field_names: {type: boolean}
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scan_entire_timeframe: {type: boolean}
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### Kibana Discover App Link
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generate_kibana_discover_url: {type: boolean}
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kibana_discover_app_url: {type: string, format: uri}
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kibana_discover_version: {type: string, enum: ['7.3', '7.2', '7.1', '7.0', '6.8', '6.7', '6.6', '6.5', '6.4', '6.3', '6.2', '6.1', '6.0', '5.6']}
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kibana_discover_index_pattern_id: {type: string, minLength: 1}
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kibana_discover_columns: {type: array, items: {type: string, minLength: 1}, minItems: 1}
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kibana_discover_from_timedelta: *timedelta
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kibana_discover_to_timedelta: *timedelta
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# Alert Content
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alert_text: {type: string} # Python format string
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alert_text_args: {type: array, items: {type: string}}

‎requirements.txt‎

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@@ -11,6 +11,7 @@ exotel>=0.1.3
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jira>=1.0.10,<1.0.15
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jsonschema>=3.0.2
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mock>=2.0.0
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prison>=0.1.2
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py-zabbix==1.1.3
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PyStaticConfiguration>=0.10.3
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python-dateutil>=2.6.0,<2.7.0

‎setup.py‎

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'jira>=1.0.10,<1.0.15',
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'jsonschema>=3.0.2',
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'mock>=2.0.0',
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'prison>=0.1.2',
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'PyStaticConfiguration>=0.10.3',
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'python-dateutil>=2.6.0,<2.7.0',
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'PyYAML>=3.12',

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