Don't bother with container registry, need to build for specific architectures

context/crontab

-20 1 * * * root s3-purge >> /var/log/s3-purge 2>/var/log/s3-purge-err
+20 1 * * * root /usr/local/bin/s3-purge >> /var/log/s3-purge 2>/var/log/s3-purge-err

docker-compose.yml

 version: "3.7"
 services:
   s3_object_expirer:
-    image: containers.ethitter.com:443/docker/s3-object-expirer:latest
+    image: s3-object-expirer:latest
+    build:
+      context: ./context
     restart: unless-stopped
     secrets:
       - source: s3_config