Squashed commit of the following:

commit 59d03f97a3
Author: c6ristian <c6ristian@christian.moe>
Date:   Mon Jul 29 20:15:58 2024 +0200

    explain why the COPY step exists

commit 2fd26d6f6f
Author: c6ristian <c6ristian@christian.moe>
Date:   Mon Jul 29 19:55:52 2024 +0200

    no keep var run

commit cc2f0cdc81
Author: c6ristian <c6ristian@christian.moe>
Date:   Mon Jul 29 19:53:52 2024 +0200

    no keep var log

commit 88569e05f5
Author: c6ristian <c6ristian@christian.moe>
Date:   Mon Jul 29 19:46:31 2024 +0200

    COPY .keep

commit 1eca984167
Author: c6ristian <c6ristian@christian.moe>
Date:   Mon Jul 29 19:21:50 2024 +0200

    nextcloud: try a .keep file to save the folder

nextcloud/Containerfile

@@ -4,7 +4,10 @@ FROM docker.io/library/nextcloud:${TAG}
 RUN apt-get update \
     && apt-get install -y supervisor \
     && rm -rf /var/lib/apt/lists/* \
-    && mkdir /var/log/supervisord /var/run/supervisord
+    && mkdir -p /var/log/supervisord /var/run/supervisord 
+
+# We need to copy a file to the supervisord folder in /var/run so it exists when the container starts.
+COPY .keep /var/run/supervisord/
 
 COPY supervisord.conf /