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1. 启动数据库

• yml文件
  创建opengauss目录，里边创建docker-compose.yml文件内容如下：

华为开源数据库，默认5432端口，是不是很熟悉，疑似又是个套壳子的事件。果断用postgres的docker-compose.yml稍作修改

version: "3.1"
services:
  opengauss:
    image: enmotech/opengauss:latest
    environment:
      GS_PASSWORD: liubei@161
      TZ: Asia/Shanghai
    ports:
      - 5432:5432
    privileged: true
    volumes:
      - ./opengauss:/var/lib/opengauss/data
    restart: always

对，你没看错
postgres的变量POSTGRES_PASSWORD改成GS_PASSWORD就是openGauss的变量了。
之后试了postgres创建默认库的变量 POSTGRES_DB，改成GS_DB就是openGauss的变量。

• 启动服务

[root@localhost opengauss]# docker-compose up -d
Creating network "opengauss_default" with the default driver
Creating opengauss_opengauss_1 ... done
[root@localhost opengauss]# docker-compose ps
        Name                   Command          State           Ports
------------------------------------------------------------------------------
opengauss_opengauss_1   entrypoint.sh gaussdb   Up      0.0.0.0:5432->5432/tcp

2. 登录

2.1 本地登录

• 进入opengauss的容器

[root@localhost opengauss]# docker ps
CONTAINER ID        IMAGE                                         COMMAND                  CREATED             STATUS              PORTS                    NAMES
3267dbb97d2f        harbocto.boe.com.cn/public/opengauss:latest   "entrypoint.sh gauss…"   11 minutes ago      Up 11 minutes       0.0.0.0:5432->5432/tcp   opengauss_opengauss_1
[root@localhost opengauss]# docker exec -it 32 bash

• 切换到omm用户登录

root@3267dbb97d2f:/# su - omm

• 登录数据库

omm@3267dbb97d2f:~$ gsql
gsql ((openGauss 2.1.0 build 590b0f8e) compiled at 2021-09-30 14:29:04 commit 0 last mr  )
Non-SSL connection (SSL connection is recommended when requiring high-security)
Type "help" for help.

• 测试sql

大胆用postgres的命令试吧，肯定没毛病

omm=# select version();
                                                                       version
------------------------------------------------------------------------------------------------------------------------------------------------------
 (openGauss 2.1.0 build 590b0f8e) compiled at 2021-09-30 14:29:04 commit 0 last mr   on x86_64-unknown-linux-gnu, compiled by g++ (GCC) 7.3.0, 64-bit
(1 row)
omm=# select datname from pg_database;
  datname
-----------
 template1
 omm
 template0
 postgres
(4 rows)

果然命令都没改，甚至连postgres库都没改。

2.2 远程登录

直接上postgres的客户端，就不信会错

是不是感觉被骗了，哈哈哈

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