nginx: adding more env configuration

HOME=

MORTY_IMAGE_VERSION=

MORTY_KEY=

NGINX_IMAGE_VERSION=

ROOT_EMAIL=

SEARX_IMAGE_VERSION=

SITE=

SYNAPSE_CONFIG_PATH=

TRAEFIK_CHECK_NEW_VERSION=

TRAEFIK_EXPOSED_BY_DEFAULT=

TRAEFIK_IMAGE_VERSION=

TRAEFIK_PILOT_TOKEN=

TRAEFIK_PLUGINS=

TRAEFIK_SEND_ANONYMOUS_USAGE=

TRAEFIK_WEB_ENTRYPOINT=

TRAEFIK_WEBSECURE_ENTRYPOINT=

TRAEFIK_WEB_ENTRYPOINT=

TZ=

USERNAME=

USERS=

services:

  nginx:

    image: nginx:stable-alpine

    image: nginx:${NGINX_IMAGE_VERSION:-stable-alpine}

    volumes:

      - './nginx/conf:/etc/nginx/conf.d'

      - './nginx/logs:/var/log/nginx/'