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Prometheus Alertmanager Telegram Bot

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This is the Alertmanager bot for Prometheus that notifies you on alerts.
Just configure the Alertmanager to send Webhooks to the bot and that’s it.

Additionally you can always send commands to get up-to-date information from the alertmanager.

Why?

Alertmanager already integrates a lot of different messengers as receivers for alerts.
I want to extend this basic functionality.

Previously the Alertmanager could only talk to you via a chat, but now you can talk back via commands.
You can ask about current ongoing alerts and silences.
In the future I plan to also support silencing via the chat, so you can silences after getting an alert from within the chat.
A lot of other things can be added!

Messengers

Right now it supports Telegram, but I’d like to add more in the future.

Commands

/start

Hey, Matthias! I will now keep you up to date!
/help

/stop

Alright, Matthias! I won’t talk to you again.
/help

/alerts

fire FIRING fire
NodeDown (Node scraper.krautreporter:8080 down)
scraper.krautreporter:8080 has been down for more than 1 minute.
Started: 1 week 2 days 3 hours 50 minutes 42 seconds ago

fire FIRING fire monitored_service_down (MONITORED SERVICE DOWN) The monitoring service ‘digitalocean-exporter’ is down. Started: 10 seconds ago

/silences

NodeDown no_bell
job="ranch-eye" monitor="exporter-metrics" severity="page"
Started: 1 month 1 week 5 days 8 hours 27 minutes 57 seconds ago
Ends: -11 months 2 weeks 2 days 19 hours 15 minutes 24 seconds

RancherServiceState no_bell
job="rancher" monitor="exporter-metrics" name="scraper" rancherURL="http://rancher.example.com/v1" severity="page" state="inactive"
Started: 1 week 2 days 3 hours 46 minutes 21 seconds ago
Ends: -3 weeks 1 day 13 minutes 24 seconds

/chats

Currently these chat have subscribed: @MetalMatze

/status

AlertManager
Version: 0.5.1
Uptime: 3 weeks 1 day 6 hours 15 minutes 2 seconds
AlertManager Bot
Version: 0.4.2
Uptime: 3 weeks 1 hour 17 minutes 19 seconds

/help

I’m a Prometheus AlertManager Bot for Telegram. I will notify you about alerts.
You can also ask me about my /status, /alerts & /silences

Available commands:
/start – Subscribe for alerts.
/stop – Unsubscribe for alerts.
/status – Print the current status.
/alerts – List all alerts.
/silences – List all silences.
/chats – List all users and group chats that subscribed.

Installation

Docker

docker pull metalmatze/alertmanager-bot:0.4.2

Start as a command:

Bolt Storage

docker run -d \
	-e 'ALERTMANAGER_URL=http://alertmanager:9093' \
	-e 'BOLT_PATH=/data/bot.db' \
	-e 'STORE=bolt' \
	-e 'TELEGRAM_ADMIN=1234567' \
	-e 'TELEGRAM_TOKEN=XXX' \
	-v '/srv/monitoring/alertmanager-bot:/data' \
	--name alertmanager-bot \
	metalmatze/alertmanager-bot:0.4.2

Consul Storage

docker run -d \
	-e 'ALERTMANAGER_URL=http://alertmanager:9093' \
	-e 'CONSUL_URL=localhost:8500' \
	-e 'STORE=consul' \
	-e 'TELEGRAM_ADMIN=1234567' \
	-e 'TELEGRAM_TOKEN=XXX' \
	--name alertmanager-bot \
	metalmatze/alertmanager-bot:0.4.2

docker-compose:

networks:
  alertmanager-bot: {}
services:
  alertmanager-bot:
    command:
    - --alertmanager.url=http://localhost:9093
    - --log.level=info
    - --store=bolt
    - --bolt.path=/data/bot.db
    environment:
      TELEGRAM_ADMIN: "1234"
      TELEGRAM_TOKEN: XXXXXXX
    image: metalmatze/alertmanager-bot:0.4.2
    networks:
    - alertmanager-bot
    ports:
    - 8080:8080
    restart: always
    volumes:
    - ./data:/data
version: "3"

Kubernetes:

apiVersion: v1
items:
- apiVersion: v1
  data:
    admin: MTIzNA==
    token: WFhYWFhYWA==
  kind: Secret
  metadata:
    labels:
      app.kubernetes.io/name: alertmanager-bot
    name: alertmanager-bot
    namespace: monitoring
  type: Opaque
- apiVersion: v1
  kind: Service
  metadata:
    labels:
      app.kubernetes.io/name: alertmanager-bot
    name: alertmanager-bot
    namespace: monitoring
  spec:
    ports:
    - name: http
      port: 8080
      targetPort: 8080
    selector:
      app.kubernetes.io/name: alertmanager-bot
- apiVersion: apps/v1
  kind: StatefulSet
  metadata:
    labels:
      app.kubernetes.io/name: alertmanager-bot
    name: alertmanager-bot
    namespace: monitoring
  spec:
    podManagementPolicy: OrderedReady
    replicas: 1
    selector:
      matchLabels:
        app.kubernetes.io/name: alertmanager-bot
    serviceName: alertmanager-bot
    template:
      metadata:
        labels:
          app.kubernetes.io/name: alertmanager-bot
        name: alertmanager-bot
        namespace: monitoring
      spec:
        containers:
        - args:
          - --alertmanager.url=http://localhost:9093
          - --log.level=info
          - --store=bolt
          - --bolt.path=/data/bot.db
          env:
          - name: TELEGRAM_ADMIN
            valueFrom:
              secretKeyRef:
                key: admin
                name: alertmanager-bot
          - name: TELEGRAM_TOKEN
            valueFrom:
              secretKeyRef:
                key: token
                name: alertmanager-bot
          image: metalmatze/alertmanager-bot:0.4.2
          imagePullPolicy: IfNotPresent
          name: alertmanager-bot
          ports:
          - containerPort: 8080
            name: http
          resources:
            limits:
              cpu: 100m
              memory: 128Mi
            requests:
              cpu: 25m
              memory: 64Mi
          volumeMounts:
          - mountPath: /data
            name: data
        restartPolicy: Always
        volumes:
        - name: data
          persistentVolumeClaim:
            claimName: data
    volumeClaimTemplates:
    - apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        labels:
          app.kubernetes.io/name: alertmanager-bot
        name: alertmanager-bot
        namespace: monitoring
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 1Gi
        storageClassName: standard
kind: List

Ansible

If you prefer using configuration management systems (like Ansible) you might be interested in the following role: mbaran0v.alertmanager-bot

Build from source

GO111MODULE=on go get github.com/metalmatze/alertmanager-bot/cmd/alertmanager-bot

Configuration

ENV Variable Description
ALERTMANAGER_URL Address of the alertmanager, default: http://localhost:9093
BOLT_PATH Path on disk to the file where the boltdb is stored, default: /tmp/bot.db
CONSUL_URL The URL to use to connect with Consul, default: localhost:8500
LISTEN_ADDR Address that the bot listens for webhooks, default: 0.0.0.0:8080
STORE The type of the store to use, choose from bolt (local) or consul (distributed)
TELEGRAM_ADMIN The Telegram user id for the admin. The bot will only reply to messages sent from an admin. All other messages are dropped and logged on the bot’s console.
Your user id you can get from @userinfobot.
TELEGRAM_TOKEN Token you get from @botfather
TEMPLATE_PATHS Path to custom message templates, default template is ./default.tmpl, in docker – /templates/default.tmpl

Authentication

Additional users may be allowed to command the bot by giving multiple instances of the --telegram.admin command line option or by specifying a newline-separated list of telegram user IDs in the TELEGRAM_ADMIN environment variable.

- TELEGRAM_ADMIN="**********\n************"
--telegram.admin=1 --telegram.admin=2

Alertmanager Configuration

Now you need to connect the Alertmanager to send alerts to the bot.
A webhook is used for that, so make sure your LISTEN_ADDR is reachable for the Alertmanager.

For example add this to your alertmanager.yml configuration:

receivers:
- name: 'alertmananger-bot'
  webhook_configs:
  - send_resolved: true
    url: 'http://alertmanager-bot:8080'

Development

Get all dependencies. We use golang/dep.
Fetch all dependencies with:

dep ensure -v -vendor-only

Build the binary using make:

make install

In case you have $GOPATH/bin in your $PATH you can now simply start the bot by running:

alertmanager-bot

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