Mount a docker image's contents to your local machine for inspection

mount_local.sh

IMAGE_REGISTRY=""
IMAGE_NAME="image"
IMAGE_TAG="tag"

VOLUME_NAME="${IMAGE_NAME}-${IMAGE_TAG}"

# Contents will be accessible in /tmp/IMAGE_NAME-IMAGE_TAG
docker volume create \
  --driver local \
  --opt type=none \
  --opt device=/tmp/$VOLUME_NAME \
  --opt o=bind \
  $VOLUME_NAME

docker run -it --rm --mount source=${VOLUME_NAME},target=/app "${IMAGE_REGISTRY}${IMAGE_NAME}:${IMAGE_TAG}" /bin/bash

# ctrl-c when you're done
docker volume rm $VOLUME_NAME