我用docker-compose做了健康检查。

healthcheck:
  test: ['CMD-SHELL', 'pg_isready']
  interval: 5s
  timeout: 5s
  retries: 5

如果你也有这样的更改用户:

healthcheck:
  test: ['CMD-SHELL', 'pg_isready -U postgres'] # <<<---
  interval: 5s
  timeout: 5s
  retries: 5

工作方法,

vi /etc/postgresql/9.3/main/pg_hba.conf 本地所有postgres peer 这里将peer改为trust 重启，sudo服务postgresql重启 现在试试，psql -U postgres

按照以下步骤让postgres工作。

在终端中，使用以下命令找到应用程序支持文件夹。 /Users/[用户名]/库/应用程序支持 删除应用程序Postgres。 重新安装应用程序，它应该工作得很好。

sudo -u postgres createuser --superuser $USER

sudo -u postgres createdb $USER

这绝对适合你。

遵循以下步骤，它将为你工作:

run msfconsole type db_console some information will be shown to you chose the information who tell you to make: db_connect user:pass@host:port.../database sorry I don't remember it but it's like this one then replace the user and the password and the host and the database with the information included in the database.yml in the emplacement: /usr/share/metasploit-framework/config you will see. rebuilding the model cache in the background. Type apt-get update && apt-get upgrade after the update restart the terminal and lunch msfconsole and it works you can check that by typing in msfconsole: msf>db_status you will see that it's connected.

对于Postgres 9.5版本，使用以下命令:

psql -h localhost -U postgres

希望这能有所帮助。