docker-compose.nginx.yml

version: "3.7"

services:
  prometheus:
    # Reasoning behind Prometheus command query flags:
    # --query.max-samples: each Prometheus data sample is 16 bytes.
    #                      16B * 31250000 = 1/2 GB.
    # --query.max-concurrency: the max # of concurrent queries (default is 20).
    # these parameters are intended to limit the amount of memory Prometheus
    # uses for its queries to ~1GB, because it's sensitive to OOMs.
    command: "--config.file=/etc/prometheus/prometheus.yml --web.external-url=https://${LETSENCRYPT_FQDN?}/prometheus --web.route-prefix=/ --query.max-samples=31250000 --query.max-concurrency=2"

  grafana:
    volumes:
      - ./grafana/grafana.ini:/etc/grafana/grafana.ini

  nginx:
    build: ./nginx
    restart: always

    logging:
      driver: json-file
      options:
        max-size: "10m"
        max-file: "5"

    volumes:
      - ./nginx/etc/.htpasswd:/etc/nginx/.htpasswd
      - ./nginx/etc/ssl:/etc/nginx/ssl
      - ./nginx/etc/service.conf:/etc/nginx/service.conf
    ports:
      - "80:80"
      - "443:443"

    environment:
      - LETSENCRYPT=true
      - "TZ=${TIMEZONE}"
      - "LE_EMAIL=${LETSENCRYPT_EMAIL?}"
      - "LE_FQDN=${LETSENCRYPT_FQDN?}"

      # Uncomment the lines below to use your own TLS certs.
      # - "SSL_CERT=${SSL_CERT}"
      # - "SSL_KEY=${SSL_KEY}"
      # - "SSL_CHAIN_CERT=${SSL_CHAIN_CERT}"
    depends_on:
      - grafana