Docker部署安装PostGres

Posted 2022-03-28 Mr.zhou_Zxy

Docker部署安装PostGres

一、下载

## 使用docker拉取postgres:9.4镜像
[root@zxy_master docker]# docker pull postgres:9.4
9.4: Pulling from library/postgres
619014d83c02: Pull complete
7ec0fe6664f6: Pull complete
9ca7ba8f7764: Pull complete
9e1155d037e2: Pull complete
febcfb7f8870: Pull complete
8c78c79412b5: Pull complete
5a35744405c5: Pull complete
27717922e067: Pull complete
36f0c5255550: Pull complete
dbf0a396f422: Pull complete
ec4c06ea33e5: Pull complete
e8dd33eba6d1: Pull complete
51c81b3b2c20: Pull complete
2a03dd76f5d7: Pull complete
Digest: sha256:42a7a6a647a602efa9592edd1f56359800d079b93fa52c5d92244c58ac4a2ab9
Status: Downloaded newer image for postgres:9.4
docker.io/library/postgres:9.4

二、查看images

## docker命令查看镜像
[root@zxy_master docker]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED        SIZE
postgres     9.4       ed5a45034282   2 years ago    251MB

三、创建容器

## 执行docker命令创建容器
## --name [容器名]
## -e POSTGRES_PASSWORD=[postgres密码]
## -p ip:ip [使用外部端口54321映射内部端口5432]
## -d 选择镜像
[root@zxy_master docker]# docker run --name postgres -e POSTGRES_PASSWORD=postgres -p 54321:5432 -d postgres:9.4
dd50f020b9f434562be9b11cbff3ac866ca8d50475b4caa4c5127e435d22fdd8
## 查看运行中镜像
[root@zxy_master docker]# docker ps
CONTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS                                         NAMES
dd50f020b9f4   postgres:9.4   "docker-entrypoint.s…"   6 seconds ago   Up 4 seconds   0.0.0.0:54321->5432/tcp, :::54321->5432/tcp   postgres
[

四、进入容器

[root@zxy_master docker]# docker exec -it dd50f020b9f4 /bin/bash
root@dd50f020b9f4:/# ls
## 登录数据库
## 默认用户名为postgres,密码为创建容器时自定义
root@dd50f020b9f4:/# psql -U postgres
psql (9.4.26)
Type "help" for help.

## 1.查看所有数据库
postgres=# \\l
                                 List of databases
   Name    |  Owner   | Encoding |  Collate   |   Ctype    |   Access privileges
-----------+----------+----------+------------+------------+-----------------------
 postgres  | postgres | UTF8     | en_US.utf8 | en_US.utf8 |
 template0 | postgres | UTF8     | en_US.utf8 | en_US.utf8 | =c/postgres          +
           |          |          |            |            | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.utf8 | en_US.utf8 | =c/postgres          +
           |          |          |            |            | postgres=CTc/postgres
(3 rows)

## 2.模糊查询所有数据库
postgres=# \\l 'post*'
                              List of databases
   Name   |  Owner   | Encoding |  Collate   |   Ctype    | Access privileges
----------+----------+----------+------------+------------+-------------------
 postgres | postgres | UTF8     | en_US.utf8 | en_US.utf8 |
(1 row)

## 3.切换数据库
postgres=# \\c postgres
You are now connected to database "postgres" as user "postgres".

## 4.查看数据库下schemas
postgres=# \\dn
  List of schemas
  Name  |  Owner
--------+----------
 ads    | postgres
 dwd    | postgres
 dws    | postgres
 ods    | postgres
 public | postgres
(5 rows)

## 5.模糊查询数据库下schemas
postgres=# \\dn '*ds*'
 List of schemas
 Name |  Owner
------+----------
 ads  | postgres
 ods  | postgres
(2 rows)

## 6.显示当前使用schema
postgres=# show search_path;
  search_path
----------------
 "$user",public
(1 row)

## 7.切换当前schema到ods
postgres=# set search_path to ods;
SET
postgres=# show search_path;
 search_path
-------------
 ods
(1 row)

## 8.创建表
postgres=# create table ods.ods_a( id int , name text);
CREATE TABLE

## 9.查询表
postgres=# select * from ods.ods_a;
 id | name
----+------
(0 rows)

## 10.查看表详情
postgres=# \\d ods.ods_a;
      Table "ods.ods_a"
 Column |  Type   | Modifiers
--------+---------+-----------
 id     | integer |
 name   | text    |

## 11.退出psql
postgres=# \\q
root@dd50f020b9f4:/# 

五、navicat连接

云服务器需开启54321端口，虚拟机关闭防火墙