feat: Info about user data

Added small guide with info about running pivpn unattended as user data
during cloud instance boot

docs/guides/user-data.md

@@ -0,0 +1,54 @@
+title: Cloud instance user data
+summary: How to run the script on cloud instance user data
+Authors: 4s3ti
+
+# Cloud instance user data
+
+PiVPN can be used to install OpenVPN or Wireguard completely unattended during a cloud instance boot (example AWS)
+
+!!! Note
+    This info is focused at more advanced users that wish to have their own VPN in the cloud or spin up VPN servers on demand with PiVPN.
+
+      * You should be comfortable reading bash and understanding what the provided scripts below are doing.
+      * You should know what a cloud instance is
+      * You should know what user data is
+
+
+
+Configuration file examples can be found here [here](https://github.com/pivpn/pivpn/tree/master/examples)
+
+You can use the following script as an example and adjust the values to suit your needs
+
+```
+#!/bin/bash
+
+# Create options file
+cat << EOF > /tmp/options.conf
+USING_UFW=0
+IPv4dev=ens5
+install_user=admin
+install_home=/home/admin
+VPN=openvpn
+pivpnPROTO=udp
+pivpnPORT=1194
+pivpnDNS1=8.8.8.8
+pivpnDNS2=8.8.4.4
+TWO_POINT_FOUR=1
+pivpnENCRYPT=256
+USE_PREDEFINED_DH_PARAM=1
+INPUT_CHAIN_EDITED=0
+FORWARD_CHAIN_EDITED=0
+pivpnDEV=tun0
+pivpnNET=10.8.0.0
+subnetClass=24
+UNATTUPG=1
+EOF
+
+# Install git and clone pivpn repo
+apt update && apt install -y git
+git clone https://github.com/pivpn/pivpn /tmp/pivpn
+
+# Install PiVPN from options.conf
+cd /tmp/ || exit
+bash pivpn/auto_install/install.sh --unattended /tmp/options.conf
+```

mkdocs.yml

@@ -27,6 +27,7 @@ nav:
   - projects.md
   - Guides:
     - Dynamic DNS: guides/dynamic-dns.md
+    - User Data: guides/user-data.md
 
 extra:
   social: