apt-get update
apt-get install sudo

Baresp@adhg MINGW64 /c/Program Files/Docker Toolbox/postgre
$ mkdir new_folder
mkdir: cannot create directory ‘new_folder’: Permission denied

Baresp@adhg MINGW64 /c/Program Files/Docker Toolbox/postgre
$ sudo mkdir new_folder
bash: sudo: command not found

version: '2'

services:
postgres:
image: postgres
environment:
  POSTGRES_USER: postgres
  POSTGRES_PASSWORD: changeme
  PGDATA: /data/postgres
volumes:
   - /data/postgres:/data/postgres
ports:
  - "5432:5432"
networks:
  - postgres
restart: unless-stopped
container_name: xx_postgres

pgadmin:
links:
  - postgres:postgres
image: fenglc/pgadmin4
volumes:
   - /data/pgadmin:/root/.pgadmin
ports:
  - "5050:5050"
networks:
  - postgres
restart: unless-stopped
container_name: xx_pgadmin


networks:
postgres:
driver: bridge