Add ADMINER_HOST env var

.env.example

 # general
-HOST=subdomain.domain.com
+HOST=sub.domain.com
+ADMINER_HOST=adminer.domain.com
 CONTAINER_PREFIX=myproject
 
 # wordpress - wordpress:php7.3-fpm

docker-compose.yml

@@ -15,7 +15,7 @@ services:
     labels:
       - traefik.enable=true
       - traefik.docker.network=web
-      - traefik.http.routers.adminer.rule=Host(`adminer.iseard.media`)
+      - traefik.http.routers.adminer.rule=Host(`${ADMINER_HOST}`)
       - traefik.http.routers.adminer.tls.certresolver=cloudflare
       - traefik.http.routers.adminer.entrypoints=websecure