Dockerizing PostgreSQL – psql连接被拒绝
我正在玩Docker，我想Dockerize一个Postgres容器。
我遵循官方的例子，但我无法连接到使用psql运行的映像。
我使用示例的内容创build了Dockerfile。 我从Dockerfile构build一个映像并为其分配一个名称。 然后我运行PostgreSQL服务器容器（在前台）。
~/test » docker run --rm -P --name pg_test eg_postgresql 2014-10-10 06:12:43 UTC LOG: database system was interrupted; last known up at 2014-10-10 06:12:29 UTC 2014-10-10 06:12:43 UTC LOG: database system was not properly shut down; automatic recovery in progress 2014-10-10 06:12:43 UTC LOG: redo starts at 0/1782F68 2014-10-10 06:12:43 UTC LOG: record with zero length at 0/1782FA8 2014-10-10 06:12:43 UTC LOG: redo done at 0/1782F68 2014-10-10 06:12:43 UTC LOG: last completed transaction was at log time 2014-10-10 06:12:29.2487+00 2014-10-10 06:12:43 UTC LOG: database system is ready to accept connections 2014-10-10 06:12:43 UTC LOG: autovacuum launcher started 然后我打开另一个terminal找出端口：
~/test » docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES aaedb0479139 eg_postgresql:latest "/usr/lib/postgresql 3 days ago Up 41 seconds 0.0.0.0:49154->5432/tcp pg_test
所以我可以使用psql连接到实例。 但我不能…
~/test » psql -h localhost -p 49154 -d docker -U docker --password Password for user docker: psql: could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 49154? could not connect to server: Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 49154? could not connect to server: Connection refused Is the server running on host "localhost" (fe80::1) and accepting TCP/IP connections on port 49154?
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在我的Mac上运行这个为我工作：
$ boot2docker ip The VM's Host only interface IP address is: 192.168.59.103
然后连接：
$ psql -h 192.168.59.103 -p 49159 -d docker -U docker --password
这样做不太理想，但是https://docs.docker.com/installation/mac/上的说明表明，如果您想直接从您的Mac连接，则是正确的解决scheme。
如果将–publish选项添加到docker run命令
docker run --rm -P --publish 127.0.0.1:5432:5432 --name pg_test eg_postgresql
当你运行docker文件的时候，下面的代码会运行（注意现在的端口是5432）
psql -h localhost -p 5432 -d docker -U docker --password