我想在postgres图像中使用psql，以便在数据库上运行一些查询。
但不幸的是，当我附加到postgres容器时，我得到了错误，找不到psql命令…

对我来说，如何在容器中运行postgre SQL查询或命令是一个谜。

如何在postgres容器中运行psql命令？ (我是Docker世界的新人)

我使用Ubuntu作为主机，我没有在主机上安装postgres，而是使用postgres容器。

@H_301_8@docker-compose ps Name Command State Ports --------------------------------------------------------------------------------------------- yiialkalmi_app_1 /bin/bash Exit 0 yiialkalmi_Nginx_1 Nginx -g daemon off; Up 443/tcp,0.0.0.0:80->80/tcp yiialkalmi_PHP_1 PHP-fpm Up 9000/tcp yiialkalmi_postgres_1 /docker-entrypoint.sh postgres Up 5432/tcp yiialkalmi_redis_1 docker-entrypoint.sh redis ... Up 6379/tcp

这里的容器：

@H_301_8@docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 315567db2dff yiialkalmi_Nginx "Nginx -g 'daemon off" 18 hours ago Up 3 hours 0.0.0.0:80->80/tcp,443/tcp yiialkalmi_Nginx_1 53577722df71 yiialkalmi_PHP "PHP-fpm" 18 hours ago Up 3 hours 9000/tcp yiialkalmi_PHP_1 40e39bd0329a postgres:latest "/docker-entrypoint.s" 18 hours ago Up 3 hours 5432/tcp yiialkalmi_postgres_1 5cc47477b72d redis:latest "docker-entrypoint.sh" 19 hours ago Up 3 hours 6379/tcp yiialkalmi_redis_1

这是我的docker-compose.yml：

@H_301_8@app: image: ubuntu:16.04 volumes: - .:/var/www/html Nginx: build: ./docker/Nginx/ ports: - 80:80 links: - PHP volumes_from: - app volumes: - ./docker/Nginx/conf.d:/etc/Nginx/conf.d PHP: build: ./docker/PHP/ expose: - 9000 links: - postgres - redis volumes_from: - app postgres: image: postgres:latest volumes: - /var/lib/postgres environment: POSTGRES_DB: project POSTGRES_USER: project POSTGRES_PASSWORD: project redis: image: redis:latest expose: - 6379