Docker Ubuntu Behind Proxy

Question

Looking at docs there is no instruction on how to run it behind a proxy. https://docs.docker.com/installation/ubuntulinux/

Reading on forums, the instruction is to updat

Answer 1

You should replace 127.0.0.1 to your host IP or some public accessible IP

Answer 2

systemctl will have to installed, which can be problematic. In case /etc/systemd/system/docker.service.d/http-proxy.conf or /etc/default/docker solution does not work for you, simply use the below command:

docker build [OPTIONS] PATH --build-arg http_proxy=http://your.proxy:port --build-arg https_proxy=http://your.proxy:port --build-arg no_proxy=.internal.domain,localhost,127.0.0.1

Answer 3

According to the Docs

Add to ~/.docker/config.json proxy configuration

{
 "proxies":
 {
   "default":
   {
     "httpProxy": "http://127.0.0.1:3001",
     "noProxy": "*.test.example.com,.example2.com"
   }
 }
}

Answer 4

Ubuntu 14.04 LTS

For Ubuntu 14.04 LTS who uses SysVinit, you should modify /etc/default/docker file:

# cat /etc/default/docker
# Docker Upstart and SysVinit configuration file

#
# THIS FILE DOES NOT APPLY TO SYSTEMD
#
#   Please see the documentation for "systemd drop-ins":
#   https://docs.docker.com/engine/articles/systemd/
#

.......
# If you need Docker to use an HTTP proxy, it can also be specified here.
export http_proxy="http://web-proxy.corp.xxxxxx.com:8080/"
export https_proxy="https://web-proxy.corp.xxxxxx.com:8080/"
......

Then restart docker:

service docker restart

Ubuntu 16.04 LTS / Ubuntu 18.04 LTS

For Ubuntu 16.04 LTS who uses Systemd, you can follow this post:

(1) Create a systemd drop-in directory:

mkdir /etc/systemd/system/docker.service.d

(2) Add proxy in /etc/systemd/system/docker.service.d/http-proxy.conf file:

# cat /etc/systemd/system/docker.service.d/http-proxy.conf
[Service]
Environment="HTTP_PROXY=https://web-proxy.corp.xxxxxx.com:8080/"
Environment="HTTPS_PROXY=https://web-proxy.corp.xxxxxx.com:8080/"
Environment="NO_PROXY=localhost,127.0.0.1,localaddress,.localdomain.com"

(3) Flush changes:

systemctl daemon-reload

(4) Restart Docker:

systemctl restart docker

Official Reference

Answer 5

For Ubuntu 14.04.2 LTS Linux vagrant-ubuntu-trusty-64 3.13.0-54-generic #91-Ubuntu SMP Tue May 26 19:15:08 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Edit you /etc/default/docker file

sudo vim /etc/default/docker

Add this line at the bottom:

export http_proxy="http://PROXY_IP:PROXY_PORT"

Restart the docker service

sudo service docker restart

Answer 6

In Ubuntu 14.04 LTS:

An interesting issue about the HTTP_PROXY, HTTPS_PROXY is that: if your password has a special char like "$", "%", then it will not be processed correctly by the docker daemon when you execute command like: dock run xxx, you will encounter error. Then you can try to set the special char to others, good luck.