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This is a Docker (docker-ce) installation for Ubuntu 16.04 and Ubuntu 18.04
#!/bin/bash
# This bash script is referenced by https://www.hostinger.com/tutorials/how-to-install-docker-on-ubuntu
# Reference: https://docs.docker.com/engine/install/ubuntu/
echo 'Check your Linux Distribution....'
which lsb_release > /dev/null 2>&1
if [[ $? != 0 ]]; then
echo 'This Linux distribution is not supported by this bash script...'
echo 'Stopped it.'
exit 1;
fi;
echo 'Check user is root or normal user....'
sudo_prefix=''
if [[ $USER == 'root' ]]; then
echo "It's root user..."
else
echo "Check this ${USER} has sudo..."
which sudo > /dev/null 2>&1
if [[ $? != 0 ]]; then
echo 'Please install sudo package.....'
exit 1;
fi;
sudo_prefix='sudo '
fi;
echo "Let's start installing Docker......"
${sudo_prefix}apt-get update
${sudo_prefix}apt-get upgrade
${sudo_prefix}apt-get install curl apt-transport-https ca-certificates software-properties-common -y
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | ${sudo_prefix} apt-key add -
echo "Check CPU architecture..."
arch=$(lscpu | head -n 1 | awk '{print $2}')
if [[ $arch == "x86_64" ]]; then
arch="amd64"
fi;
if [[ $arch == "aarch64" ]]; then
arch="arm64"
fi;
if [[ $1 != "" ]]; then
echo "CPU architecture has been detected..."
arch=$1
fi;
${sudo_prefix}add-apt-repository "deb [arch=${arch}] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
${sudo_prefix}apt-get update
${sudo_prefix}apt-get install docker-ce -y
${sudo_prefix}systemctl enable --now docker
echo "Check whether Docker service daemon is enabled/started currently..."
${sudo_prefix}systemctl status --no-pager docker > /dev/null 2>&1
if [[ $? != 0 ]]; then
echo 'The Docker service daemon is not running correctly...'
echo 'Stopped it.'
exit 1;
fi;
echo 'The Docker service daemon is running currently. Done.'
if [[ ${whoami} != 'root' ]]; then
read -p "Do you want to let ${whoami} user execute Docker without sudo [Y/n]? " result
if [[ $result == 'Y' ]]; then
${sudo_prefix}gpasswd -a "${USER}" docker
fi;
fi;
# References: https://medium.com/@bennyh/docker-and-proxy-88148a3f35f7
read -p "Do you want to install docker-compose package [Y/n]?" docker_compose_result
if [[ $docker_compose_result == 'Y' ]]; then
${sudo_prefix}apt-get install -y docker-compose
fi;
read -p "Do you want to set proxy [Y/n]? " proxy_answer_result
if [[ $proxy_answer_result == 'Y' ]]; then
read -p "Please create proxy setting file: (Please set absoulte file path): " proxy_setting_path
if [[ ! -f $proxy_setting_path ]]; then
echo "$proxy_setting_path is not correct"
exit 1;
fi;
echo "Check the proxy variables are set on host operating system...."
env | grep "^http_proxy="
if [[ $? != 0 ]]; then
echo "http_proxy env variable is not set.... Try to set it."
http_proxy=$(cat $proxy_setting_path | grep "^http_proxy=")
echo "$http_proxy" | ${sudo_prefix}tee -a /etc/environment
fi;
env | grep "^https_proxy="
if [[ $? != 0 ]]; then
echo "https_proxy env variable is not set.... try to se it."
https_proxy=$(cat $proxy_setting_path | grep "^https_proxy=")
echo "$https_proxy" | ${sudo_prefix}tee -a /etc/environment
fi;
env | grep "^socks_proxy="
if [[ $? != 0 ]]; then
echo "socks_proxy env variable is not set....Try to set it."
socks_proxy=$(cat $proxy_setting_path | grep "^socks_proxy=")
echo "$socks_proxy" | ${sudo_prefix}tee -a /etc/environment
fi;
source /etc/environment
echo "Override /etc/systemd/system/docker.service.d/http-proxy.conf file..."
echo ""
${sudo_prefix}mkdir -p /etc/systemd/system/docker.service.d/
${sudo_prefix}touch /etc/systemd/system/docker.service.d/http-proxy.conf
echo "[Service]" | ${sudo_prefix}tee -a /etc/systemd/system/docker.service.d/http-proxy.conf
http_proxy=$(cat $proxy_setting_path | grep "^http_proxy" | awk '{split($1,a,"="); print a[2]}')
https_proxy=$(cat $proxy_setting_path | grep "^http_proxy" | awk '{split($1,a,"="); print a[2]}')
echo "Environment=\"HTTP_PROXY=${http_proxy}\"" | ${sudo_prefix}tee -a /etc/systemd/system/docker.service.d/http-proxy.conf
echo "Environment=\"HTTP_PROXY=${https_proxy}\"" | ${sudo_prefix}tee -a /etc/systemd/system/docker.service.d/http-proxy.conf
echo "Override ${HOME}/.docker/config.json..."
echo "{" > ${HOME}/.docker/config.json
echo " "proxies":" >> ${HOME}/.docker/config.json
echo " {" >> ${HOME}/.docker/config.json
echo " "default":" >> ${HOME}/.docker/config.json
echo " {" >> ${HOME}/.docker/config.json
echo " \"httpProxy\": \"${http_proxy}\"," >> ${HOME}/.docker/config.json
echo " \"httpsProxy\": \"${https_proxy}\"" >> ${HOME}/.docker/config.json
echo " }" >> ${HOME}/.docker/config.json
echo " }" >> ${HOME}/.docker/config.json
echo "}" >> ${HOME}/.docker/config.json
echo "Restart service......"
${sudo_prefix}systemctl restart docker
echo "Now the Docker will support your customized proxy setting! Enjoy it!"
fi;
http_proxy=http://proxy-n1.xxx.com.tw:3128
https_proxy=http://proxy-n1.xxx.com.tw:3128
socks_proxy=http://proxy-n1.xxx.com.tw:3128
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