// Aula 28 - Monitoramento de ICMP

https://github.com/czerwonk/ping_exporter

https://github.com/czerwonk/ping_exporter/releases

# mkdir /etc/ping_exporter

# wget https://github.com/czerwonk/ping_exporter/releases/download/1.0.1/ping_exporter_1.0.1_linux_amd64.tar.gz

# tar -xzf ping_exporter*linux_amd64.tar.gz

# cp ping_exporter /usr/local/bin/

# vim /etc/ping_exporter/config.yml

# List of target hosts (IP addresses or host names) to ping.
targets:
- 8.8.8.8
- 2001:4860:4860::8888

dns:
  # enforce a specific DNS server for host name lookups (optional,
  # defaults to system resolver)
  nameserver: 1.1.1.1

  # refresh interval for host name (optional)
  refresh: 2m45s

ping:
  interval:     2s # How often to ping a target?
  timeout:      3s # Timeout for a single ICMP Echo Request
  history-size: 42 # number of results to keep per target
  payload-size: 56 # message size for ICMP Echo Requests
  
# /usr/local/bin/ping_exporter --config.path=/etc/ping_exporter/config.yml

# crontab -e

* * * * * /usr/local/bin/ping_exporter --config.path=/etc/ping_exporter/config.yml

# systemctl restart crond

# firewall-cmd --add-port=9427/tcp --permanent

# firewall-cmd --reload 

http://192.168.15.141:9427/metrics

# vim /etc/prometheus/prometheus.yml

  - job_name: ping
    static_configs:
      - targets: ["localhost:9427"]
      
# systemctl restart prometheus

# ps aux | grep ping_exporter