The sensu-alertmanager-events is a Sensu Check that fetch alerts from Alert Manager and send it to sensu agent api. It was inspired by sensu-kubernetes-events and sensu-aggregate-check. It doesn't require any change in Alert Manager configuration.
Sensu check for alert maanager events
Usage:
sensu-alertmanager-events [flags]
sensu-alertmanager-events [command]
Available Commands:
help Help about any command
version Print the version number of this plugin
Flags:
-A, --agent-api-url string The URL for the Agent API used to send events (default "http://127.0.0.1:3031/events")
-a, --alert-manager-api-url string The URL for the Agent to connect to Alert Manager (default "http://alertmanager-main.monitoring:9093/api/v2/alerts")
-c, --alert-manager-cluster-label-entity string Alert Manager label that represent a cluster entity inside Sensu
-x, --alert-manager-exclude-alert-list string Alert Manager alerts to be excluded. split by comma. (default "Watchdog,")
-L, --alert-manager-exclude-labels string Query for Alertmanager Exclude Labels (e.g. alertname=TargetDown,environment=dev)
-e, --alert-manager-external-url string Alert Manager External URL
-l, --alert-manager-label-selectors string Query for Alertmanager LabelSelectors (e.g. alertname=TargetDown,environment=dev)
-T, --alert-manager-target-alertname string Alert name for Targets in prometheus. It creates a link in label prometheus_targets_url (default "TargetDown")
-B, --api-backend-host string Sensu Go Backend API Host (e.g. 'sensu-backend.example.com') (default "127.0.0.1")
-k, --api-backend-key string Sensu Go Backend API Key
-P, --api-backend-pass string Sensu Go Backend API Password (default "P@ssw0rd!")
-p, --api-backend-port int Sensu Go Backend API Port (e.g. 4242) (default 8080)
-u, --api-backend-user string Sensu Go Backend API User (default "admin")
-C, --auto-close-sensu Configure it to Auto Close if event doesn't match any Alerts from Alert Manager. Please configure others api-backend-* options before enable this flag
--auto-close-sensu-label string Configure it to Auto Close if event doesn't match any Alerts from Alert Manager and with these label. e. {"cluster":"k8s-dev"}
-h, --help help for sensu-alertmanager-events
-i, --insecure-skip-verify skip TLS certificate verification (not recommended!)
--rewrite-annotation string Rewrite Annotation from prometheus rules to sensu annotation format to work with sensu plugins. Format: opsgenie_priority=sensu.io/plugins/sensu-opsgenie-handler/config/priority Or for multiples use comma: opsgenie_priority=sensu.io/plugins/sensu-opsgenie-handler/config/priority,extraTwo=extraValue
-s, --secure Use TLS connection to API
--sensu-agent-entity string Overwrite Subscriptions with Agent Entity Hostname when using proxy entity agent
--sensu-extra-annotation string Add Extra Sensu Check Annotation in alert send to Sensu Agent API. Format: annotationName=annotationValue Or for multiples use comma: annotationName=annotationValue,extraTwo=extraValue
--sensu-extra-label string Add Extra Sensu Check Label in alert send to Sensu Agent API. Format: labelName=labelValue Or for multiple values labelName=labelValue,ExtraLabel=ExtraValue
-H, --sensu-handler string Sensu Handler for alerts. Split by commas (default "default,")
-n, --sensu-namespace string Configure which Sensu Namespace wll be used by alerts (default "default")
-E, --sensu-proxy-entity string Overwrite Proxy Entity in Sensu
-t, --trusted-ca-file string TLS CA certificate bundle in PEM format
Use "sensu-alertmanager-events [command] --help" for more information about a command.
Sensu Assets are the best way to make use of this plugin. If you're not using an asset, please consider doing so! If you're using sensuctl 5.13 with Sensu Backend 5.13 or later, you can use the following command to add the asset:
sensuctl asset add betorvs/sensu-alertmanager-events
If you're using an earlier version of sensuctl, you can find the asset on the Bonsai Asset Index.
Maybe you need to add extra flags if you want to use --auto-close-sensu.
---
type: CheckConfig
api_version: core/v2
metadata:
name: sensu-alertmanager-events
namespace: default
spec:
command: sensu-alertmanager-events -e "https://alertmanager.example.com"
subscriptions:
- k8s-agents
runtime_assets:
- betorvs/sensu-alertmanager-eventsIf you run these check in more than one cluster and use the same Sensu Namespace, use this flag:
--auto-close-sensu-label "{\"cluster\":\"k8s.dev\"}".
The preferred way of installing and deploying this plugin is to use it as an Asset. If you would like to compile and install the plugin from source or contribute to it, download the latest version or create an executable script from this source.
From the local path of the sensu-alertmanager-events repository:
go build
+---------+ +---------------+ +---------------+ +-----------------+
| Plugin | | AlertManager | | SensuAgentAPI | | SensuBackendAPI |
+---------+ +---------------+ +---------------+ +-----------------+
| | | |
| Get all alerts | | |
|----------------------------->| | |
| | | |
| Alert Manager Alerts | | |
|<-----------------------------| | |
---------------------\ | | | |
| *Clean up Alerts | | | | |
| by Name and Labels |-| | | |
|--------------------| | | | |
| | | |
| Create Events in Sensu | | |
|----------------------------------------------->| |
| | | |
| | | Send Events |
| | |--------------------->|
| | | | ------------------\
| | | |-| Observability |
| | | | | Pipeline |
| | | | |-----------------|
| Get Events. | | |
|---------------------------------------------------------------------->|
| | | |
| | Sensu Events with plugin owner label. |
|<----------------------------------------------------------------------|
------------------------\ | | | |
| **Compare AlertManager| | | | |
| and SensuBackend List |-| | | |
|-----------------------| | | | |
| | | |
| Send events to close | | |
|----------------------------------------------->| |
| | | |
| | | Close Events |
| | |--------------------->|
| | | |
* - Flags: --alert-manager-exclude-alert-list, --alert-manager-label-selectors, --alert-manager-exclude-labels are used here.
** - Use: Check if Fingerprint attribute matches.
For more information about contributing to this plugin, see Contributing.
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