1.Docker 启动 postgresql数据库报错The container name “/postgres“ is already in use by container

一、问题

docker启动postgresql数据库报错
启动命令

docker run --name postgres -e POSTGRES_PASSWORD=123456 -p 5432:5432 -d postgres:9.6

日志

docker: Error response from daemon: Conflict. The container name "/postgres" is already in use by container "5305e20894e37b4ee2ebf7bc98847e99cb8b37b4691234568a94fa51e3fbd905". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.

二、解决

查看所有进程

C:\Users\username>docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                     PORTS               NAMES
5305e20894e3        postgres:9.6        "docker-entrypoint.s…"   24 minutes ago      Exited (0) 3 minutes ago                       postgres

发现之前运行的还没有正常退出，导致出现了容器重名的情况，
复制上面出现的id删除即可

C:\Users\username>docker rm 5305e20894e3
5305e20894e3

再运行启动命令，已经可以正常启动了

C:\Users\username>docker run --name postgres -e POSTGRES_PASSWORD=123456 -p 5432:5432 -d postgres:9.6
ef83495f5037f02bf413a35b8955c514dc927f40dccb0f3617853fe7aa94192f

查看所有进程，发现status已经是启动状态了

C:\Users\username>docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
ef83495f5037        postgres:9.6        "docker-entrypoint.s…"   13 seconds ago      Up 11 seconds       0.0.0.0:5432->5432/tcp   postgres

用DBeaver连接也已经可以连上了