Fake remote storage receiver server for Prometheus on docker

NOTE: This repo is part of my analysis of the weave cloud product (notes).

While testing the new online service cloud.weave.works (to forward prometheus data), I found this new configuration that we needed to add to the prometheus.yml:

remote_write:
  url: https://cloud.weave.works/api/prom/push
  basic_auth:
    <token>

You can find more in the prom docs.

Unfortunately it isn't working with a test prometheus on my local mac. To be sure it wasn't a prom problem I found out a way to test the functionality via a fake receiver server.

The go server code is in the /code directory and it has not been changed.

To allow the prometheus docker installation to see the server, I put the code in another docker and connected the two. You can test with the docker-compose command.

Data will be printed on the shell you run the command into.

Usage

Build

In my case:

docker build -t jecnua/prom-remoteserver .

NOTE: If you want to take a peek inside remember that Alpine doesn't have netstat. Use ss (e.s.: ss -tl)

Run

docker-compose up

Tests

Tested on:

• MacOSX Sierra
• Docker for mac Version 1.12.3-beta29.3 (13640) / Channel: Beta 619507e27c

Disclaimers

I am not an expert on docker, I am actually just starting to play with it. For any advice or comments feel free to send me an email :) I don't bite. Please reference this repo or I could get it as recruiters spam. ^^

Links

• Makefile copied and slightly modified from microscling
• Go server repo