Basic auth config for alertmanager in prometheus.yml

[Philipp Wieseckel]

Hi there,

i am using prometheus installed via docker and behind an Apache reverse proxy with basic auth.

I tried to give prometheus the username and password to connect to basic auth and send alerts to alertmanager, unfortunately i cant get it to work. Usually the container wont even start as it says the config is malformed as i put in the basic auth parameters.

Alertmanager section of prometheus.yml looks like this:

alerting:
  alertmanagers:
    - scheme: https
      path_prefix: /alertmanager
      static_configs:
        - targets:
                - prometheus.domain.com

wherever i put my basic auht here it does not work.

Can anyone enlighten me what im doing wrong?

Best regards

Philipp

[Brian Candler]

The documentation at https://prometheus.io/docs/prometheus/latest/configuration/configuration/#alertmanager_config shows how to configure it, but you haven't shown what you tried.

According to the documentation:

alerting:
  alertmanagers:
    - scheme: https
      path_prefix: /alertmanager

      basic_auth:
        username: admin

        password: tcpip123

[Philipp Wieseckel]

Thank you Brian,

works like breeze now, i've read the documentation but somehow did not manage to put the variables at the right place seems i have to learn mor about YAML.

Thanks to you again Brian!