installation instructions for wireguard

Signed-off-by: Ahmet Turkmen <[email protected]>

scripts/install-wg.sh

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+#!/usr/bin/env bash
+
+# For any issues on installation script below,
+# refer official installation instructions :  https://www.wireguard.com/install/
+
+
+# wireguard installation requires root privileges in order to
+# manage network interface cards
+if [[ $EUID -ne 0 ]]; then
+   echo "This script must be run as root"
+   exit 1
+fi
+
+# be careful to install WireGuard on CentOS
+if [ -f /etc/centos-release ]; then
+  majorVersion=$(cat /etc/centos-release | tr -dc '0-9.'|cut -d \. -f1)
+  if [ $majorVersion -eq 7 ]; then
+    sudo yum install -y epel-release https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm
+    sudo yum install -y yum-plugin-elrepo
+    sudo yum install -y kmod-wireguard wireguard-tools
+  elif [ $majorVersion -eq 8 ]; then
+    sudo yum install -y elrepo-release epel-release
+    sudo yum install -y kmod-wireguard wireguard-tools
+    # Users running non-standard kernels may wish to use the DKMS package instead of the above prebuilt kmod package, using these alternative instructions:
+    fi
+fi
+
+if [ -f /etc/lsb-release ]; then
+   sudo apt install -y  wireguard
+fi
+
+# there is a GUI client for Mac and Windows
+# to install it, please refer https://www.wireguard.com/install/
+if [ "$(uname)" == "Darwin" ]; then
+#    todo: check whether brew is installed or not
+    sudo brew install wireguard-tools
+#    alternatively it can be installed through `port`
+#    sudo port install wireguard-tools
+fi
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