[英]How to connect to a Postgres server in a Docker (1.12.0) container on a Mac?
The latest release of Docker doesn't use a virtual machine anymore, instead using a hypervisor to connect to the containers. 最新版本的Docker不再使用虚拟机,而是使用虚拟机管理程序连接到容器。 This means I can no longer login to postgres with
psql
: 这意味着我无法再使用
psql
登录postgres:
➜ postgres git:(master) ✗ docker run -d -p 5433:5432 db postgres
<sha>
➜ postgres git:(master) ✗ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
111f3bed4c52 db "/docker-entrypoint.s" 17 minutes ago Up 17 minutes 0.0.0.0:5433->5432/tcp zen_hugle
➜ postgres git:(master) ✗ psql -p 5433 -U postgres
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5433"?
I have also tried specifying localhost as the host, but that results in a strange output: 我也尝试将localhost指定为主机,但这会导致奇怪的输出:
➜ postgres git:(master) ✗ psql -h localhost -p 5433 -U postgres
psql: %
Does anyone know what to do in this case? 有谁知道在这种情况下该怎么做? Thank you.
谢谢。
With follwing command, 有了下面的命令,
docker run -d -p 5433:5432 db postgres
You are exporting your docker's 5432 port to docker-engine's 5433 port. 您正在将docker的5432端口导出到docker-engine的5433端口。 Not your host machine's 5433.
不是你的主机5433。
Fetch your docker-machine's IP address with following command (assuming your docker vm name is default
) 使用以下命令获取docker-machine的IP地址(假设您的docker vm名称是
default
)
docker-machine env default
This should give you result similar to following lines 这应该给你类似于以下行的结果
> export DOCKER_TLS_VERIFY="1"
> export DOCKER_HOST="tcp://192.168.99.100:2376"
> export DOCKER_CERT_PATH="/Users/<your-user>/.docker/machine/machines/default"
> export DOCKER_MACHINE_NAME="default"
Use your docker-machine's IP address to connect to Postgres running in container 使用docker-machine的IP地址连接到容器中运行的Postgres
>psql -h 192.168.99.100 -p 5433 -U postgres
psql (9.5.0, server 9.5.5)
Type "help" for help.
postgres=#
You can connect over tcp by using an IP like psql -h 0.0.0.0 -p 5433 -U postgres
(or 127.0.0.1, etc.). 您可以使用类似
psql -h 0.0.0.0 -p 5433 -U postgres
(或127.0.0.1等)的IP通过tcp连接。
Using the default or "localhost" will try using the local domain socket (although the version of Docker doesn't change this behavior, you will generally need to connect to a containerized db via tcp). 使用默认或“localhost”将尝试使用本地域套接字(尽管Docker的版本不会更改此行为,您通常需要通过tcp连接到容器化的数据库)。
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