docker：尝试连接到已发布端口时表示连接被拒绝

Question

我是码头工人的新手。我正在创建一个“Hello, World”示例。我想做的就是在 docker 中启动 Apache，然后从主机查看默认网站。

Dockerfile

FROM centos:latest

RUN yum install epel-release -y

RUN yum install wget -y

RUN yum install httpd -y

EXPOSE 80

ENTRYPOINT ["/usr/sbin/httpd", "-D", "FOREGROUND"]

然后我构建它： > docker build .

然后我给它贴上标签：

docker tag 17283f566320 my:apache

然后我运行它：

> docker run -p 80:9191 my:apache
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message

然后就运行了......

在另一个终端窗口中，我尝试发出命令curl来查看默认网站。

> curl -XGET http://0.0.0.0:9191
curl: (7) Failed to connect to 0.0.0.0 port 9191: Connection refused

> curl -XGET http://localhost:9191
curl: (7) Failed to connect to localhost port 9191: Connection refused

> curl -XGET http://127.0.0.1:9191
curl: (7) Failed to connect to 127.0.0.1 port 9191: Connection refused

或者我尝试本地主机

为了确保端口正确，我运行以下命令：

> docker ps -l
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                          NAMES
5aed4063b1f6        my:apachep      "/usr/sbin/httpd -D F"   43 seconds ago      Up 42 seconds       80/tcp, 0.0.0.0:80->9191/tcp   angry_hodgkin

Answer 1

谢谢大家。我的端口被颠倒了：

> docker run -p 9191:80 my:apache