MVP

Fixes #1 (closed)

context/Dockerfile

@@ -7,11 +7,11 @@ RUN echo "deb http://security.debian.org/ buster/updates main" >> /etc/apt/sourc
 
 RUN apt-get update \
     && apt-get -y --no-install-recommends install \
-        s4cmd \
+        s3cmd \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 COPY s3-purge.sh /usr/local/bin/s3-purge
 COPY crontab /etc/cron.d/s3-purge
 
-CMD tail -f /dev/null
+CMD ["tail", "-f", "/dev/null"]