Add tested Alpine-derived distroless rTorrent variant

docker-compose.distroless.yml

@@ -0,0 +1,12 @@
+# Use alongside docker-compose.yml after checking rtorrent.rc for external commands.
+services:
+  rtorrent:
+    image: docker.io/k2patel/rtorrent:distroless
+    environment:
+      - HOME=/root
+    volumes:
+      - "${TORRENTSESSION}:/home/nfs_download/rsession:rw"
+    healthcheck:
+      test: ["CMD", "/usr/local/bin/rtorrent-entrypoint", "--healthcheck"]
+  floodui:
+    image: docker.io/k2patel/floodui:distroless