[英]Can not connect to a postgres database in a docker container from my local machine
I have a strange problem with docker and postgres.我对 docker 和 postgres 有一个奇怪的问题。 I can not connect from my local machine to psql inside the docker container.我无法从本地机器连接到 docker 容器内的 psql。
First of all I created my container with this command:首先,我使用以下命令创建了我的容器:
docker run -d -p 5432:5432 --name my-postgres -e POSTGRES_PASSWORD=mysecretpassword postgres
After that I executed the container with following command:之后,我使用以下命令执行了容器:
docker exec -it my-postgres bash
Inside the container I started psql with the postgres user:在容器内,我使用 postgres 用户启动了 psql:
psql -U postgres
And I created a new database:我创建了一个新数据库:
CREATE DATABASE mytestdb;
Everything works inside the container, but if I want to connect to it from my machine it does only show the database from my machine.一切都在容器内工作,但如果我想从我的机器连接到它,它只会显示我机器上的数据库。 I tried this to connect to postgres:我试过这个连接到postgres:
psql -h localhost -p 5432 -U postgres
Which should me show something like this:我应该显示这样的内容:
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+------------+------------+-----------------------
mytestdb | postgres | UTF8 | en_US.utf8 | en_US.utf8 |
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
(4 rows)
But instead I get this:但是我得到了这个:
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------------+-----------------+----------+---------+---------+----------------------------------
user | user | UTF8 | C | C |
postgres | user | UTF8 | C | C |
template0 | user | UTF8 | C | C | =c/user +
| | | | | user =CTc/user
template1 | user | UTF8 | C | C | =c/user +
| | | | | user =CTc/user
(4 rows)
(END)
In every tutorial, I saw they did it, but for me, it doesn't work.在每个教程中,我都看到他们做到了,但对我来说,它不起作用。 So please help me.所以请帮助我。
The problem is when you creating the db.问题是当您创建数据库时。 CREATE DATABASE mytestdb
you forgot to add ;
CREATE DATABASE mytestdb
你忘记添加了;
the command should be like CREATE DATABASE mytestdb;
命令应该类似于CREATE DATABASE mytestdb;
And then you have your db and you can access it from inside the container or your host with these commands然后你有你的数据库,你可以使用这些命令从容器或主机内部访问它
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