From 6962dc1b3d9fc0a7caae43fb920c573d2fc850a1 Mon Sep 17 00:00:00 2001
From: Deepak Goel <dgoel@mesosphere.com>
Date: Thu, 11 Jul 2019 15:49:10 -0700
Subject: [PATCH] script to create (or destroy) vpn for docker-on-mac

---
 mac-network.sh | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 mac-network.sh

diff --git a/mac-network.sh b/mac-network.sh
new file mode 100644
index 0000000..672e062
--- /dev/null
+++ b/mac-network.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+
+DOCKER_IMAGE=onedata/docker-openvpn-kube-for-mac:1.3.0
+
+# colors
+GREEN='\033[1;32m'
+RED='\033[0;31m'
+WHITE='\033[1;37m'
+NOCOLOR='\033[0m'
+
+# marks
+TICK='\xE2\x9C\x94'
+CROSS='\xE2\x9D\x8C'
+
+create() {
+  command -v docker > /dev/null 2>&1 || { echo >&2 "couldn't find docker client. Aborting..."; exit 1; }
+
+  [ ! "$(docker ps | grep docker-openvpn)" ] || { echo 'It seems VPN is already running. Do Nothing.'; exit 1; }
+
+  docker container rm docker-openvpn > /dev/null 2>&1
+  docker volume rm ovpn-data > /dev/null 2>&1
+
+  printf "${GREEN}"
+
+  printf "Creating docker volume ..........."
+  error=$(docker volume create --name ovpn-data 2>&1 >/dev/null)
+  check "$error"
+
+  printf "Initializing vpn config .........."
+  error=$(docker run -v ovpn-data:/etc/openvpn --rm $DOCKER_IMAGE ovpn_genconfig -u udp://localhost 2>&1 >/dev/null)
+  check "$error"
+
+  printf "Creating CA (may take sometime) .."
+  error=$(docker run -v ovpn-data:/etc/openvpn --rm -i -e "EASYRSA_BATCH=1" -e "EASYRSA_REQ_CN=Default CA" $DOCKER_IMAGE ovpn_initpki nopass 2>&1 >/dev/null)
+  check "$error"
+
+  printf "Creating client certificate ......"
+  error=$(docker run -v ovpn-data:/etc/openvpn --rm -i $DOCKER_IMAGE easyrsa build-client-full DockerForMac nopass 2>&1 >/dev/null)
+  check "$error"
+
+  printf "Starting vpn server .............."
+  error=$(docker run --dns 8.8.8.8 --restart=always -v ovpn-data:/etc/openvpn --name docker-openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN $DOCKER_IMAGE 2>&1 >/dev/null)
+  check "$error"
+
+  printf "Exporting client certificate ....."
+  docker run -v ovpn-data:/etc/openvpn --rm $DOCKER_IMAGE ovpn_getclient DockerForMac > ./DockerForMac.ovpn
+  printf "${TICK}\n"
+
+  printf "${WHITE}\n"
+
+  echo 'Please follow the below instructions                    '
+  echo '********************************************************'
+  echo '1. Install (or Run) Tunnelblink                         '
+  echo '2. Run open ./DockerForMac.ovpn                         '
+  echo '3. In Tunnelblink, select `Connect DockerForMac`        '
+  echo '4. Wait for the server response (it will take a minute) '
+
+  printf "${NOCOLOR}\n"
+}
+
+destroy() {
+  printf "${GREEN}"
+
+  printf "Stopping vpn server ........."
+  docker container stop docker-openvpn > /dev/null 2>&1
+  docker container rm docker-openvpn > /dev/null 2>&1
+  printf "${TICK}\n"
+
+  printf "${WHITE}\n"
+  echo 'In Tunnelblink, select `Disconnect DockerForMac` '
+  printf "${NOCOLOR}\n"
+}
+
+check() {
+  if [ $? -eq 0 ]; then
+    printf "${TICK}\n"
+  else
+    printf "${CROSS}\n"
+    printf "${RED}ERROR: %s\n" "$1"
+    printf "${NOCOLOR}"
+    exit 1
+  fi
+}
+
+case "$1" in
+  create)
+    create
+    ;;
+  destroy)
+    destroy
+    ;;
+  *)
+    echo $"Valid arguments are: create | destroy"
+    exit 1
+esac
+