Simplify docker setup

docker-run.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# Define functions.
+function fixperms {
+	chown -R $UID:$GID /data /opt/mautrix-telegram
+}
+
+cd /opt/mautrix-telegram
+
+# Replace database path in config.
+sed -i "s#sqlite:///mautrix-telegram.db#sqlite:////data/mautrix-telegram.db#" /data/config.yaml
+
+if [ -f /data/mx-state.json ]; then
+	ln -s /data/mx-state.json
+fi
+# Check that database is in the right state
+alembic -x config=/data/config.yaml upgrade head
+
+if [ ! -f /data/config.yaml ]; then
+	cp example-config.yaml /data/config.yaml
+	echo "Didn't find a config file."
+	echo "Copied default config file to /data/config.yaml"
+	echo "Modify that config file to your liking."
+	echo "Start the container again after that to generate the registration file."
+	fixperms
+	exit
+fi
+
+if [ ! -f /data/registration.yaml ]; then
+	python3 -m mautrix_telegram -g -c /data/config.yaml -r /data/registration.yaml
+	echo "Didn't find a registration file."
+	echo "Generated one for you."
+	echo "Copy that over to synapses app service directory."
+	fixperms
+	exit
+fi
+
+fixperms
+exec su-exec $UID:$GID python3 -m mautrix_telegram -c /data/config.yaml