add wesher + wireguard

with a huuuuuge hack

src/run.sh

@@ -171,6 +171,14 @@ stage_end "$?";
 # Pre-install tasks
 #######################################
 
+# From here on, *all* tasks must be COMPLETELY NONINTERACTIVE.
+# If you have something you need to ask the user, it should have been asked
+# above. The reason for this is that we do *not* want the user to be sitting
+# around waiting for the next dialog box. They should have to wait only once,
+# as this saves time.
+
+step_current="2";
+
 stage_begin "Executing pre-install tasks";
 while read -r preinstall_step; do
 	#shellcheck disable=SC1090
@@ -190,6 +198,8 @@ stage_end "$?" "1 or more pre-install tasks failed";
 # Install packages
 #######################################
 
+step_current="3";
+
 stage_begin "Installing apt packages";
 apt-get install --no-install-recommends --yes "$(cat "${temp_dir}/apt-packages.txt")";
 stage_end "$?" "Failed to install apt packages";
@@ -206,6 +216,8 @@ stage_end "$?" "Failed to install apt packages";
 # Post-install tasks
 #######################################
 
+step_current="4";
+
 stage_begin "Running post-install tasks";
 while read -r postinstall_step; do
 	#shellcheck disable=SC1090
@@ -219,8 +231,14 @@ stage_begin "$?" "Failed to run 1 or more post-install tasks";
 # Final steps
 ###
 
+step_current="5";
+
 source "steps-last/15-ufw.sh";
 
+###############################################################################
+
+step_current="done";
+
 
 echo "
 ██████  ██████   ██████  ██    ██ ██ ███████ ██  ██████  ███    ██ ██ ███    ██  ██████

src/steps-config/50-wesher-wireguard.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+wesher_secret="$(ask_password "wesher configuration" "Enter the wesher shared secret:")";
+
+wesher_join_ip="$(ask_text "wesher configuration" "Enter an IP of a host in the cluster to join:")";
+
+queue_apt_install "raspberrypi-kernel-headers" "wireguard" "wesher" "wesher-systemd";
+
+
+queue_postinstall_step "10-wesher.sh";

src/steps-postinstall/10-wesher.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+task_begin "Configuring wesher";
+
+# HACK: Ref https://github.com/costela/wesher/issues/70
+WESHER_CLUSTER_KEY="${wesher_secret}" wesher /usr/local/sbin/wesher --overlay-net 172.31.250.0/16 --log-level info --join "${wesher_join_ip}" &
+
+sleep 5;
+killall wesher;
+sleep 5;
+
+task_end "$?";
+
+task_begin "Starting wesher";
+
+sudo systemctl enable --now wesher;
+
+task_end "$?";