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@cseelye
cseelye / overlay.sh
Last active November 4, 2022 13:39 — forked from detunized/run.sh
Mount a read-only folder inside a Docker container with OverlayFS on top
# On the host to run the container
docker run --privileged -i -t -v ~/host-folder-to-mount:/root/folder-ro:ro ubuntu
# Inside the container
# Need to create the upper and work dirs inside a tmpfs.
# Otherwise OverlayFS complains about AUFS folders.
mkdir -p /tmp/overlay && \
mount -t tmpfs tmpfs /tmp/overlay && \
mkdir -p /tmp/overlay/{upper,work} && \
mkdir -p /root/folder && \