Automatic Set / Unset PROXY on centOS

etc-sysconfig-docker

# /etc/sysconfig/docker

HTTP_PROXY=http://10.31.255.65:8080
NO_PROXY=localhost,127.0.0.1
http_proxy=http://10.31.255.65:8080
no_proxy=localhost,127.0.0.1

etc-yum.conf.withproxy

# /etc/yum.conf.withproxy

[...]

proxy=http://10.31.255.65:8080
proxy_username=
proxy_password=

http-proxy.conf.proxy

# /etc/systemd/system/docker.service.d/http-proxy.conf.proxy
[Service]
EnvironmentFile=/etc/sysconfig/docker

setProxy.sh

#!/bin/bash

#----------------------------------------------------------------------------------
# setProxy.sh
#       Script to activate HTTP proxy for the system, docker and yum. 
#----------------------------------------------------------------------------------

echo "Enabling proxy env..."
export http_proxy=http://XXX.XXX.XXX.XXX
export https_proxy=$http_proxy
export HTTP_PROXY=$http_proxy
export HTTPS_PROXY=$HTTP_PROXY

isDockerProxy="$(sudo systemctl show docker.service | grep EnvironmentFile)"

# if variable empty, docker proxy is not configured : add it !
if [[ -z $isDockerProxy ]]
then
        echo "Enabling proxy for Docker service..."
        sudo cp /etc/systemd/system/docker.service.d/http-proxy.conf.proxy /etc/systemd/system/docker.service.d/http-proxy.conf
        echo "Reloading Docker service..."
        sudo systemctl daemon-reload
        sudo systemctl stop docker.service
        sudo systemctl start docker.service
fi

isYumProxy="$(diff /etc/yum.conf /etc/yum.conf.withoutproxy)"

# if variable empty, yum proxy is not configured : add it !
if [[ -z $isYumProxy ]]
then
        echo "Enabling proxy for YUM..."
        sudo cp /etc/yum.conf.withproxy /etc/yum.conf
fi

echo "Proxy set !"

unsetProxy.sh

#!/bin/bash

#----------------------------------------------------------------------------------
# unsetProxy.sh
#       Script to desactivate Thales proxy for the system, docker and yum. 
#----------------------------------------------------------------------------------

echo "Disabling proxy env..."
unset http_proxy
unset https_proxy
unset HTTP_PROXY
unset HTTPS_PROXY

isDockerProxy="$(sudo systemctl show docker.service | grep EnvironmentFile)"

# if variable not empty, docker proxy is configured : supress it !
if [[ ! -z $isDockerProxy ]]
then
        echo "Disabling proxy for Docker service..."
        sudo rm -f /etc/systemd/system/docker.service.d/http-proxy.conf
        echo "Reloading Docker service..."
        sudo systemctl daemon-reload
        sudo systemctl stop docker.service
        sudo systemctl start docker.service
fi

isYumProxy="$(diff /etc/yum.conf /etc/yum.conf.withoutproxy)"

# if variable not empty, yum proxy is configured : suppress it !
if [[ ! -z $isYumProxy ]]
then
        echo "Disabling proxy for YUM..."
        sudo cp /etc/yum.conf.withoutproxy /etc/yum.conf
fi

echo "Proxy unset !"