simple restic, seems to work

restic/docker-compose.yml

@@ -0,0 +1,20 @@
+# init with
+# docker run --rm -e RESTIC_PASSWORD=yourpassword -v G:/restic-backups:/backup restic/restic init --repo /backup
+
+services:
+  restic-backup:
+    image: restic/restic:latest
+    container_name: restic-backup
+    environment:
+      - RESTIC_REPOSITORY=/backup
+      - RESTIC_PASSWORD=yourpassword
+    volumes:
+      - E:/installers:/data:ro
+      - G:/restic-backups:/backup
+    entrypoint: >
+      sh -c "while true; do
+        restic backup /data &&
+        restic forget --prune --keep-last 7;
+        sleep 43200;
+      done"
+    restart: unless-stopped