docker-compose starts opengauss database - Huawei "self-developed" database

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1. Start the database

• yml file
  Create opengaussa directory, and create a docker-compose.yml file inside as follows:

Huawei's open source database, the default port is 5432, is it very familiar to you, it seems to be another cover-up incident. Decisively use postgres with docker-compose.ymla slight modification

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

Yes, you read that right,
the variable of postgres is POSTGRES_PASSWORDchanged GS_PASSWORDto the variable of openGauss.
After that, I tried postgres to create the variables of the default library POSTGRES_DB, and changed them GS_DBto openGauss variables.

• start service

[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. Login

2.1 Local login

• Enter the opengauss container

[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

• Switch to omm user login

root@3267dbb97d2f:/# su - omm

• login database

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.

• test sql

Boldly try it with the postgres command, there must be nothing wrong with it

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)

Sure enough, the command hasn't been changed, not even postgresthe library.

2.2 Remote login

Go directly to the postgres client, don’t believe it will be wrong

Do you feel cheated, hahaha

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