Gate UP

Metrics translator from services to pushgateway.

About

Let's say we have some scaled worker services in docker-compose (or in swarm) and each of them have own metrics. We need to take metrics from each service and transfer them to prometheus via pushgateway.

Quickstart

1. add gateup service to compose file and mount docker.sock file

2. add pushgateway service or use PUSHGATEWAY_URL environment variable

3. set "com.github.nmix.gate-up.scrape" label and SCRAPE_PORT variable to target service

services:
  worker:
    scale: 2
    expose:
      - 9100
    labels:
      - "com.github.nmix.gate-up.scrape"
    environment:
      SCRAPE_PORT: 9100

  gateup:
    image: zoidenberg/gate-up:latest
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro

  pushgateway:
    image: prom/pushgateway
    container_name: pushgateway
    ports:
      - 9091:9091

gateup environment variables:

PUSHGATEWAY_URL - pushgateway url for post matrics, default http://pushgateway:9091

PUSHGATEWAY_BASIC_AUTH_USERNAME - basic auth username on pushgateway, default ""

PUSHGATEWAY_BASIC_AUTH_PASSWORD - basic auth password on pushgateway, default ""

SCRAPE_INTERVAL - scrape period in seconds, default 5s

target service environment variables:

SCRAPE_PORT - port for scrape metrics, default: 80

SCRAPE_PATH - path for scrape metrics, default: /metrics

Run from source

curl -sSL https://install.python-poetry.org | python3 -
git clone https://github.com/nmix/gate-up.git

cd gate-up
docker-compose up -d

Open pushgateway page on localhost:9091 with login admin and password admin.

Prometheus with Basic Auth

Use PUSHGATEWAY_* vars in app compose section for push metrics to pushgateway with enabled basic auth.

environment:
  PUSHGATEWAY_URL: http://pc-ip-address:19091
  PUSHGATEWAY_BASIC_AUTH_USERNAME: admin
  PUSHGATEWAY_BASIC_AUTH_PASSWORD: admin

Docker Swarm

Just add environment variable SWARM_MODE=1 into gateup service