Use fuse-overlay storage-driver

Author: sschnabe

Dockerfile

@@ -31,13 +31,14 @@ RUN --mount=type=bind,from=download,source=/tmp/docker,target=/tmp/docker \
 	--mount=type=cache,target=/var/cache \
 	--mount=type=tmpfs,target=/var/log \
 	apt-get -qq update && \
-	apt-get -qq install --yes --no-install-recommends /tmp/docker/containerd*.deb /tmp/docker/docker-ce*.deb ca-certificates uidmap slirp4netns dbus-user-session iproute2 && \
+	apt-get -qq install --yes --no-install-recommends /tmp/docker/containerd*.deb /tmp/docker/docker-ce*.deb ca-certificates uidmap slirp4netns dbus-user-session iproute2 fuse-overlayfs && \
 	rm -rf /var/lib/dpkg/*-old /var/lib/dpkg/status
 RUN useradd dockerd --uid 1000 --home-dir /home/docker --create-home && rm /etc/*- /home/docker/.* && \
 	echo dockerd:100000:65536 >/etc/subuid && \
 	echo dockerd:100000:65536 >/etc/subgid
 COPY --chmod=555 entrypoint.sh /usr/bin/entrypoint.sh
 ENTRYPOINT ["/usr/bin/entrypoint.sh"]
+ENV HOME=/home/docker
 USER 1000
 
 ##

entrypoint.sh

@@ -7,7 +7,7 @@ set -e;
 ## build command to execute
 ##
 
-COMMAND="dockerd --rootless --host=0.0.0.0:${DOCKERD_PORT:-2375} --tls=false --data-root=/home/docker --shutdown-timeout=${DOCKERD_SHUTDOWN_TIMEOUT:-0}"
+COMMAND="dockerd --rootless --host=0.0.0.0:${DOCKERD_PORT:-2375} --tls=false --data-root=/home/docker --storage-driver=fuse-overlayfs --shutdown-timeout=${DOCKERD_SHUTDOWN_TIMEOUT:-0}"
 if [[ -n "$DOCKERD_LOG_LEVEL" ]]; then
 	COMMAND+=" --log-level=$DOCKERD_LOG_LEVEL"
 fi