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33 lines
1004 B
Bash
33 lines
1004 B
Bash
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#!/bin/bash
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set -e
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set +x
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# This script computes **compressed image size with all its layers**.
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# This solution is based on https://stackoverflow.com/a/55156181/314883
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DOCKER_IMAGE_NAME="docker-image-to-count-compressed-size"
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FILE_NAME="docker-image-to-count-compressed-size"
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function cleanup() {
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echo "-- Removing .tar if any"
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rm -f "${FILE_NAME}.tar"
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echo "-- Removing .tar.gz if any"
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rm -f "${FILE_NAME}.tar.gz"
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echo "-- Removing docker image if any"
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docker rmi "${DOCKER_IMAGE_NAME}:bionic" >/dev/null
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}
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trap "cleanup; cd $(pwd -P)" EXIT
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cd "$(dirname "$0")"
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echo "-- Building image..."
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docker build -t "${DOCKER_IMAGE_NAME}:bionic" -f Dockerfile.bionic . >/dev/null
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echo "-- Saving .tar of the image..."
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docker save "${DOCKER_IMAGE_NAME}:bionic" > "${FILE_NAME}.tar"
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echo "-- Compressing image..."
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gzip "${FILE_NAME}.tar" >/dev/null
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echo "(generated with docker-image-size.sh)" > CURRENT_DOCKER_IMAGE_SIZE
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du -sh ${FILE_NAME}.tar.gz | cut -f1 | xargs >> CURRENT_DOCKER_IMAGE_SIZE
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