openvpn makefile

Makefile

SHELL:=/bin/bash

vpn_address ?= $(shell ip route get 1 | awk '{print $$NF;exit}')
username ?= "vpn-user-$(shell hostname)"

default:
	make install-docker
	make init-config
	make run-server
	make new-client

# 0. install docker
install-docker:
	sudo apt-get update
	sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
	curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
	echo -n "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(shell lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/download_docker_com_linux_ubuntu.list
	sudo apt-get update
	sudo apt-get install docker-ce

# 1. generate config
init-config:
	docker run --rm -ti -v ${PWD}/vpn/etc:/etc/openvpn kylemanna/openvpn ovpn_genconfig -u udp://${vpn_address}
	docker run --rm -ti -v ${PWD}/vpn/etc:/etc/openvpn kylemanna/openvpn ovpn_initpki

# 2. run openvpn server
run-server:
	docker run -d -v ${PWD}/vpn/etc:/etc/openvpn -p 1194:1194/udp --cap-add=NET_ADMIN --name=openvpn kylemanna/openvpn

# 3. create user cert/keys and config file
new-client:
	docker run --rm -ti -v ${PWD}/vpn/etc:/etc/openvpn kylemanna/openvpn easyrsa build-client-full ${username} nopass
	docker run --rm -ti -v ${PWD}/vpn/etc:/etc/openvpn kylemanna/openvpn ovpn_getclient ${username} > ${username}.ovpn

make install-docker
make init-config vpn_domain="67.42.41.87"
make run-server
make new-client username="my-vpn-user"

Use https://tunnelblick.net/ as OpenVPN client for Mac OS