basic prototype for prometheus logging

[briancoutinho]

Prometheus support

148

Enable logging to prometheus- this will be used in environments with their prometheus logging set up already. We leverage the library https://github.com/jupp0r/prometheus-cpp/ for this work.

Parts

1. Add a Metrics list registry in the code.
2. Use Prometheus-cpp to set up an HTTP endpoint for prometheus.

Output

Ran on my laptop using a docker container.

How to Run

Please install Docker desktop.

1. Download this docker file in a directory https://gist.github.com/briancoutinho/d90e1c5d3fca59274fcd14f8863d6409
2. Build using docker build . -t prometheus:v1
3. Run docker container forwarding port and mounting dynolog open source repo docker run -p 9090:9090 -it -v ~/Work/dynolog_oss/dynolog:/workspace/dynolog prometheus:v1 /bin/bash
4. Build dynolog ./scripts/build.sh

To get the logging setup add the following in prometheus.yml

  - job_name: "dynolog"
    static_configs:
      - targets: ["localhost:8080"]

Then run prometheus and dynolog.

cd /workspace/prometheus/prometheus-2.44.0.linux-amd64;
./prometheus --config.file prometheus.yml &
cd -
./build/bin/dynolog -kernel_monitor_reporting_interval_s 10 -use_JSON -use_prometheus &

Open https://localhost:9090/

[facebook-github-bot]

@briancoutinho has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46710501

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46710501

[facebook-github-bot]

@briancoutinho merged this pull request in facebookincubator/dynolog@1fa5af75c52aab0ff685b85b6fb32626164b8aab.