How to configure docker container proxy?

Question

I am newbie for docker. I try set a proxy for debian:jessie image but i didnt make it. I follow this link . I apply all of them with cat tag (example: 'cat > proxy.sh' , because vi or another editor not installed ) but there is some error about my proxy in apt-get update command.

Error Photo

My proxy : http://username:[e-mail]

Answer 1

You can set the proxy environment variables when starting the container, for example:

docker container run \
  -e HTTP_PROXY=http://username:[e-mail] \
  -e HTTPS_PROXY=http://username:[e-mail] \
  myimage

If you want the proxy-server to be automatically used when starting a container, you can configure default proxy-servers in the Docker CLI configuration file (~/.docker/config.json). You can find instructions for this in the networking section in the user guide.

For example:

{
  "proxies": {
    "default": {
      "httpProxy": "http://username:[e-mail]",
      "httpsProxy": "http://username:[e-mail]"
    }
  }
}

To verify if the ~/.docker/config.json configuration is working, start a container and print its env:

docker container run --rm busybox env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=220e4df13604
HTTP_PROXY=http://username:[e-mail]
http_proxy=http://username:[e-mail]
HTTPS_PROXY=http://username:[e-mail]
https_proxy=http://username:[e-mail]
HOME=/root

Answer 2

you need instruct the apt script to connect through proxy inside the container

# echo 'Acquire::http::proxy "proxy:port/";' > /etc/apt/apt.conf.d/40proxy

remember, this should be written inside the container

and in the machine that have docker running, the proxy should be configured like people said before in their comments