Fix homeserver config parsing

demo/demo.tls.dh

@@ -0,0 +1,9 @@
+2048-bit DH parameters taken from rfc3526
+-----BEGIN DH PARAMETERS-----
+MIIBCAKCAQEA///////////JD9qiIWjCNMTGYouA3BzRKQJOCIpnzHQCC76mOxOb
+IlFKCHmONATd75UZs806QxswKwpt8l8UN0/hNW1tUcJF5IW1dmJefsb0TELppjft
+awv/XLb0Brft7jhr+1qJn6WunyQRfEsf5kkoZlHs5Fs9wgB8uKFjvwWY2kg2HFXT
+mmkWP6j9JM9fg2VdI9yjrZYcYvNWIIVSu57VKQdwlpZtZww1Tkq8mATxdGwIyhgh
+fDKQXkYuNs474553LBgOhgObJ4Oi7Aeij7XFXfBvTFLJ3ivL9pVYFxg5lUl86pVq
+5RXSJhiY+gUQFXKOWoqsqmj//////////wIBAg==
+-----END DH PARAMETERS-----

demo/start.sh

@@ -6,17 +6,27 @@ CWD=$(pwd)
 
 cd "$DIR/.."
 
+mkdir -p demo/etc
+
 for port in 8080 8081 8082; do
     echo "Starting server on port $port... "
 
     python -m synapse.app.homeserver \
+        --generate-config \
+        --config-path "demo/etc/$port.config" \
+        -H "localhost:$port" \
         -p "$port" \
         -H "localhost:$port" \
         -f "$DIR/$port.log" \
         -d "$DIR/$port.db" \
-        -vv \
         -D --pid-file "$DIR/$port.pid" \
-        --manhole $((port + 1000))
+        --manhole $((port + 1000)) \
+        --tls-dh-params-path "demo/demo.tls.dh"
+
+    python -m synapse.app.homeserver \
+        --config-path "demo/etc/$port.config" \
+        -vv \
+
 done
 
 echo "Starting webclient on port 8000..."