Pulsar is a tool to ship network checks to Prometheus.

The pulsar is network testing tool. For now it can perfrom checks:

Test	Description
Http	We can perform GET and POST requests.
Certificate	Check date and validity for site tls certificate.
Port	Check if post on remote resource is opened. (TODO)
Ping	Ping remote resource. (TODO)

All check results are available as Prometheus metrics on endpoint /metrics.

Metrics

Name	Description
pulsar_http_request_seconds	Time to get response from the endpoint in seconds.
pulsar_cert_not_after	The date after which a peer certificate expires. Expressed as a Unix Epoch Time.
pulsar_cert_not_before	The date before which a peer certificate is not valid. Expressed as a Unix Epoch Time.

Configuration

Tool can be configured through config.yml file. It must be placed at the same dir with app.

Configuration example

---
log_level: "debug"
certificate_config:
  - target:
      endpoint: "ya.ru"
      interval: 60
      timeout: 30
http_config:
  - target:
      endpoint: "https://ya.ru"
      interval: 60
      timeout: 30
    headers:
      Awasome-Header: something
    method: GET
    success_status: 200
    check_text: "yandex"

sections:

certificate_config:

target.endpoint - must be without protocol

http_config:

success_status - if server has returned not this code, succes will be set to false

check_text - we can search string in response body to set succes flag