add section about unattended install

Signed-off-by: SK4ndal <email@sk4ndal.nl>

docs/guides/misc/unattended-install.md

@@ -0,0 +1,38 @@
+## Unattended Installation
+
+Pi-hole can be installed unattended when using the installation script.
+
+The installation script will look for the `/etc/pihole/setupVars.conf` configuration file.
+If it finds this file, it will use the variables specified here during the install.
+The install script will also update this file during the install process if required.
+
+This is what the `/etc/pihole/setupVars.conf` file looks like with the quad9 dns servers specified:
+
+``` conf
+WEBPASSWORD=
+PIHOLE_INTERFACE=ens18
+IPV4_ADDRESS=
+IPV6_ADDRESS=
+QUERY_LOGGING=true
+INSTALL_WEB=true
+DNSMASQ_LISTENING=single
+PIHOLE_DNS_1=9.9.9.9
+PIHOLE_DNS_2=142.112.112.112
+PIHOLE_DNS_3=2620:fe::fe
+PIHOLE_DNS_4=2620:fe::9
+DNS_FQDN_REQUIRED=true
+DNS_BOGUS_PRIV=true
+DNSSEC=true
+TEMPERATUREUNIT=C
+WEBUIBOXEDLAYOUT=traditional
+API_EXCLUDE_DOMAINS=
+API_EXCLUDE_CLIENTS=
+API_QUERY_LOG_SHOW=all
+API_PRIVACY_MODE=false
+```
+
+If you want to specify the webpassword yourself instead of letting the install process generate one, use a double SHA256 encrypted string like so: `echo -n P@ssw0rd | sha256sum | awk '{printf "%s",$1 }' | sha256sum`.
+
+If you want to specify a port after an IP address use the `#` instead of `:` like so: `127.0.0.1#5353`
+
+After creating the `/etc/pihole/setupVars.conf` file, simply run the install script with the `--unattended` flag specfified.

mkdocs.yml

@@ -171,6 +171,7 @@ nav:
         - 'Optional: Dynamic DNS': guides/vpn/openvpn/dynDNS.md
         - 'Troubleshooting': guides/vpn/openvpn/troubleshooting.md
     - 'Misc':
+      - 'Unattended installation': guides/misc/unattended-install.md
       - 'Benchmarking': guides/misc/benchmark.md
       - 'Tor & Pi-hole':
         - 'Overview': guides/misc/tor/overview.md