Trying to reload prometheus with the API return 403 Forbidden

[JrCs]

What did you do?
Reloading prometheus configuration with the API using a command like:

curl -X POST http://prometheus.service.cs:9090/-/reload

What did you expect to see?
Expecting configuration reload

What did you see instead? Under which circumstances?
I receive a 403 Forbidden

Environment
Prometheus container

• System information:

Linux 4.12.10-coreos x86_64

• Prometheus version:

prometheus, version 2.0.0-beta.2 (branch: HEAD, revision: a52f082939a566d5269671e98be06fc6bdf61d09)
  build user:       root@41a0740ea598
  build date:       20170818-08:16:50
  go version:       go1.8.3

• Prometheus configuration file:

global:
  scrape_interval: 15s # By default, scrape targets every 15 seconds.
  evaluation_interval: 15s # By default, scrape targets every 15 seconds.
  # scrape_timeout is set to the global default (10s).

  # The labels to add to any time series or alerts when communicating with
  # external systems (federation, remote storage, Alertmanager).
  external_labels:
    monitor: 'prometheus-cer69'

rule_files:
  # - '/config/alert.rules'

# A scrape configuration containing exactly one endpoint to scrape:
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.

  # Prometheus himself
  - job_name: 'prometheus'
    static_configs:
      - targets: ['localhost:9090']

[gouthamve]

Please use the --web.enable-lifecycle flag to enable /-/reload and /-/quit.

Also, It makes more sense to ask questions like this on the prometheus-users mailing list rather than in a GitHub issue. On the mailing list, more people are available to potentially respond to your question, and the whole community can benefit from the answers provided.

[aarondav]

Thanks for asking this question on GitHub, btw, it is much more accessible from a Google search!

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.