Updated docker-compose.yml

version: "3"

networks:
  web:
    external: true
  internal:
    external: false

volumes:
  pg-data:
    external: false

services:
  metabase:
    image: metabase/metabase:latest
    environment:
      - MB_DB_TYPE=postgres
      - MB_DB_DBNAME=metabase_db
      - MB_DB_PORT=5432
      - MB_DB_USER=postgresuser
      - MB_DB_PASS=postgrespassword
      - MB_DB_HOST=runpostgres
    labels:
      - traefik.backend=blog
      - traefik.frontend.rule=Host:metabase.akash47.com
      - traefik.docker.network=web
      - traefik.port=80
    networks:
      - internal
      - web
    depends_on:
      - runpostgres

  runpostgres:
    image: postgres:latest
    environment:
      POSTGRES_USER: postgresuser
      POSTGRES_PASSWORD: postgrespassword
      POSTGRES_DB: metabase_db
      PG_DATA: /var/lib/postgresql/data/pgdata
    volumes:
      - pg-data:/var/lib/postgresql/data/pgdata
    networks:
      - internal
    labels:
      - traefik.enable=false