System monitoring

Prometheus + Alertmanager + Grafana + Telegram-bot

##Usage

1. Specify hosts for monitoring in ./prometheus/config.yml
2. Specify telegram chat_id in ./alertmanager/config.yml
3. Specify telegram bot token in ./telegram-sender/config.yaml
4. Run docker-compose up

Now grafana is available at host:3000, prometheus at host:9090

Default grafana credentials: admin / admin

Install on target machine

1. Run ./install-node-exporter.sh script
2. Add machine in ./prometheus/config.yml
3. Rebuild prometheus container docker-compose up -d --force-recreate --no-deps prometheus