Add teamspeak-fallback service

roles/teamspeak_fallback/templates/conditional-start.sh.j2

@@ -0,0 +1,18 @@
+#!/usr/bin/env sh
+
+while true
+do
+	if nc -z "{{ teamspeak_fallback_check_server }}" "{{ teamspeak_fallback_check_port }}"
+	then
+		if docker compose ps --services | grep teamspeak >/dev/null; then
+			echo "Stopping Server"
+			docker compose down
+		fi
+	else
+		if ! docker compose ps --services | grep teamspeak >/dev/null; then
+			echo "Starting Server"
+			docker compose up -d --pull=always
+		fi
+	fi
+	sleep 5
+done

roles/teamspeak_fallback/templates/teamspeak-fallback.service.j2

@@ -0,0 +1,13 @@
+[Service]
+[Unit]
+Description=Teamspeak Fallback Starter
+After=network.target
+
+[Service]
+Type=simple
+ExecStart={{ service_path }}/conditional-start.sh
+WorkingDirectory={{ service_path }}
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target