"INVALID" is not a valid start token

[tlgdevops]

hello,
I find myself unable to parse the metrics from script_exporter on prometheus.
My exporter config looks like this:

scripts:
  - name: login
    script: python /etc/prometheus/script_exporter/frontoffice.py login
    timeout: 15

I can successfully reach the metrics for my script on :9172/probe?name=login
However when adding to Prometheus I see the target as DOWN with this errors

"INVALID" is not a valid start token

My exporter configuration looks like this:

 - job_name: synthetics
    metrics_path: '/probe?name=login'
    static_configs:
      - targets: ['localhost:9172']

I've tried some variations of the scrape config to no success. Some documentation on usage from Prometheus would be greatly appreciated :)

thaks!

[tlgdevops]

fwiw, I ran these against promtool and only got a lint warning:

# curl -s http://localhost:9172/probe?pattern=.* | ./promtool check metrics
script_duration_seconds no help text
script_success no help text

[pint2oo]

Hi,

Adding the name of the script you're calling in the params section of your Prometheus config should solve that.

Here, with the default "failure" script :

  - job_name: 'script_exporter'
    metrics_path: '/probe'
    params:
      name: ['failure']
    static_configs:
    - targets: ['ra1svlrq2n:9172']

Hopefully that helps,

pint2oo