Unable to Specify Custom Log Format Using Docker-Compose

[barnes-c]

Description:
I am encountering difficulties in specifying a custom log format for my nginx-proxy service using Docker Compose. I've followed the instructions provided in the documentation, but the log format customization doesn't seem to take effect.

Current Configuration:

version: '3.7'

services:
  nginx-proxy:
    container_name: nginx-proxy
    image: nginxproxy/nginx-proxy
    labels:
      - com.centurylinklabs.watchtower.scope=infrastructure
      - com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy
    ports:
      - 80:80
      - 443:443
    volumes:
      - certs:/etc/nginx/certs:ro
      - vhost:/etc/nginx/vhost.d
      - html:/usr/share/nginx/html
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./conf/log.conf:/etc/nginx/conf.d/log.conf
      - ./conf/uploadsize.conf:/etc/nginx/conf.d/uploadsize.conf
      - ./conf/headercustomconf.conf:/etc/nginx/conf.d/headercustomconf.conf
    restart: always
    networks:
      proxy-tier:
      internet:
    environment:
      - ENABLE_IPV6=true
      - LOG_FORMAT='$host $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent $request_time "$http_referer" "$http_user_agent" "$upstream_addr"'

I have also attempted to set the log format in the environment, without success, to this:

  - LOG_JSON_FORMAT='{"time_local":"$$time_iso8601","remote_addr":"$$remote_addr","request":"$$request","request_time":"$$request_time","upstream_addr":"$$upstream_addr"}'

[barnes-c]

I was able to fix it by changing the environment variables to this:

   environment:
      ENABLE_IPV6: 'True'
      LOG_FORMAT: "$$remote_addr - $$remote_user [$$time_local] \"$$request\" $$status $$body_bytes_sent \"$$http_referer\" \"$$http_user_agent\" request_time=$$request_time $$upstream_response_time" # - LOG_FORMAT='$$host $$remote_addr - $$remote_user [$$time_local] "$$request" $$status $$body_bytes_sent $$request_time "$$http_referer" "$$http_user_agent" "$$upstream_addr"'