bring image back down to 700mb

bin/docker_layers.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+# This script takes a single Docker image tag (e.g. "ubuntu:latest") as input
+# and shows the contents of the filesystem for each layer in the image.
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <image_tag>"
+    exit 1
+fi
+
+IMAGE=$1
+# TMPDIR=$(mktemp -d) 
+mkdir -p "$PWD/tmp"
+TMPDIR="$PWD/tmp"
+
+# Save the Docker image to a tar archive
+echo "Saving Docker image '$IMAGE'..."
+if ! docker save "$IMAGE" | pv > "${TMPDIR}/image.tar"; then
+    echo "Failed to save image '$IMAGE'. Make sure the image exists and Docker is running."
+    rm -rf "${TMPDIR}"
+    exit 1
+fi
+
+cd "${TMPDIR}" || exit 1
+
+# Extract the top-level metadata of the image tar
+echo "Extracting image metadata..."
+pwd
+tar -xzf image.tar
+chmod -R 777 .
+cd blobs/sha256 || exit 1
+
+# Typically, the saved image will contain multiple directories each representing a layer.
+# Each layer directory should have a 'layer.tar' file that contains the filesystem for that layer.
+for LAYERFILE in ./*; do
+    if [ -f "${LAYERFILE}" ]; then
+        mv "${LAYERFILE}" "${LAYERFILE}.tar"
+        tar -xzf "${LAYERFILE}.tar"
+        rm "${LAYERFILE}.tar"
+        echo "-----------------------------------------------------------------"
+        echo "Contents of layer: ${LAYERFILE%/}"
+        echo "-----------------------------------------------------------------"
+        # List the files in the layer.tar without extracting
+        tree -L 2
+        echo
+    fi
+done