无法从 MacOS 上的主机浏览器连接到 Docker 容器

Question

I' am trying to deploy docker container on Mac machine. I ran the command:

     docker run -P -it clickstream-collector_csapi -c "test_config.yml".
     output: ts=2020-02-24T17:25:43Z lvl=info msg="Starting Collector"
     ts=2020-02-24T17:25:43Z lvl=info msg="Start producer" service=collector           
     brokers=kafka.dev:9102
     ts=2020-02-24T17:25:44Z lvl=info msg="Starting HTTP service"
     ts=2020-02-24T17:25:44Z lvl=info msg="Starting server on" addr=0.0.0.0:13425

However I can't launch 0.0.0.0:13425 on my Mac , it shows me "This site can't be reached0.0.0.0 refused to connect". It looks like my local machine doesn't look the docker . I know that Mac has some peculiarities but I pointed -p ( as I thought it should enough). Thanks a lot beforehand

Answer 1

The docker run -P (capital “P”) option asks Docker to pick a host port. That will almost always be a different port number from the one inside the container. You can print out the port number by using docker ps to find the container ID, and then docker port 0123456789ab to print out the actual port mapping. Once you've found the port number, you can use the special hostname localhost or the matching special IP address 127.0.0.1 and that port number to reach your container (not 0.0.0.0, a special address that means “everywhere”).

In typical use you'll explicitly specify both host and container ports with a -p (little “p”) option, and also specify a --name so that you can find the container later.

docker run \
  -it \
  -p 13425:13425 \
  --name clickstream_collector \
  clickstream-collector_csapi \
  ...