mirror of
https://github.com/YunoHost/yunohost.git
synced 2024-09-03 20:06:10 +02:00
Move docker-extract helper inside a 'full' vendor folder with LICENSE and README linking to original repo
This commit is contained in:
Alexandre Aubin
parent
8f7a996800
commit
09e3cab52c
5 changed files with 238 additions and 256 deletions
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@ -186,7 +186,7 @@ ynh_setup_source() {
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if ! "$src_extract"; then
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mv $src_filename $dest_dir
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elif [ "$src_format" = "docker" ]; then
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/usr/share/yunohost/helpers.d/vendor/docker-image-extract -p $src_plateform -o $dest_dir $src_url 2>&1
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/usr/share/yunohost/helpers.d/vendor/docker-image-extract/docker-image-extract -p $src_plateform -o $dest_dir $src_url 2>&1
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elif [ "$src_format" = "zip" ]; then
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# Zip format
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# Using of a temp directory, because unzip doesn't manage --strip-components
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255
helpers/vendor/docker-image-extract
vendored
255
helpers/vendor/docker-image-extract
vendored
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@ -1,255 +0,0 @@
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#!/bin/sh
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#
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# This script pulls and extracts all files from an image in Docker Hub.
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#
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# Copyright (c) 2020-2022, Jeremy Lin
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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PLATFORM_DEFAULT="linux/amd64"
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PLATFORM="${PLATFORM_DEFAULT}"
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OUT_DIR="./output"
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usage() {
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echo "This script pulls and extracts all files from an image in Docker Hub."
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echo
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echo "$0 [OPTIONS...] IMAGE[:REF]"
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echo
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echo "IMAGE can be a community user image (like 'some-user/some-image') or a"
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echo "Docker official image (like 'hello-world', which contains no '/')."
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echo
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echo "REF is either a tag name or a full SHA-256 image digest (with a 'sha256:' prefix)."
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echo
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echo "Options:"
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echo
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echo " -p PLATFORM Pull image for the specified platform (default: ${PLATFORM})"
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echo " For a given image on Docker Hub, the 'Tags' tab lists the"
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echo " platforms supported for that image."
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echo " -o OUT_DIR Extract image to the specified output dir (default: ${OUT_DIR})"
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echo " -h Show help with usage examples"
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}
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usage_detailed() {
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usage
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echo
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echo "Examples:"
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echo
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echo "# Pull and extract all files in the 'hello-world' image tagged 'latest'."
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echo "\$ $0 hello-world:latest"
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echo
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echo "# Same as above; ref defaults to the 'latest' tag."
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echo "\$ $0 hello-world"
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echo
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echo "# Pull the 'hello-world' image for the 'linux/arm64/v8' platform."
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echo "\$ $0 -p linux/arm64/v8 hello-world"
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echo
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echo "# Pull an image by digest."
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echo "\$ $0 hello-world:sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042"
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}
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if [ $# -eq 0 ]; then
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usage_detailed
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exit 0
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fi
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while getopts ':ho:p:' opt; do
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case $opt in
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o)
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OUT_DIR="${OPTARG}"
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;;
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p)
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PLATFORM="${OPTARG}"
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;;
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h)
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usage_detailed
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exit 0
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;;
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\?)
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echo "ERROR: Invalid option '-$OPTARG'"
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echo
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usage
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exit 1
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;;
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\:) echo "ERROR: Argument required for option '-$OPTARG'"
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echo
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usage
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exit 1
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;;
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esac
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done
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shift $(($OPTIND - 1))
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have_curl() {
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command -v curl >/dev/null
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}
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have_wget() {
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command -v wget >/dev/null
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}
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if ! have_curl && ! have_wget; then
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echo "This script requires either curl or wget."
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exit 1
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fi
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image_spec="$1"
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image="${image_spec%%:*}"
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if [ "${image#*/}" = "${image}" ]; then
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# Docker official images are in the 'library' namespace.
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image="library/${image}"
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fi
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ref="${image_spec#*:}"
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if [ "${ref}" = "${image_spec}" ]; then
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echo "Defaulting ref to tag 'latest'..."
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ref=latest
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fi
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# Split platform (OS/arch/variant) into separate variables.
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# A platform specifier doesn't always include the `variant` component.
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OLD_IFS="${IFS}"
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IFS=/ read -r OS ARCH VARIANT <<EOF
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${PLATFORM}
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EOF
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IFS="${OLD_IFS}"
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# Given a JSON input on stdin, extract the string value associated with the
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# specified key. This avoids an extra dependency on a tool like `jq`.
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extract() {
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local key="$1"
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# Extract "<key>":"<val>" (assumes key/val won't contain double quotes).
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# The colon may have whitespace on either side.
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grep -o "\"${key}\"[[:space:]]*:[[:space:]]*\"[^\"]\+\"" |
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# Extract just <val> by deleting the last '"', and then greedily deleting
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# everything up to '"'.
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sed -e 's/"$//' -e 's/.*"//'
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}
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# Fetch a URL to stdout. Up to two header arguments may be specified:
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#
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# fetch <url> [name1: value1] [name2: value2]
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#
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fetch() {
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if have_curl; then
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if [ $# -eq 2 ]; then
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set -- -H "$2" "$1"
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elif [ $# -eq 3 ]; then
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set -- -H "$2" -H "$3" "$1"
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fi
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curl -sSL "$@"
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else
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if [ $# -eq 2 ]; then
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set -- --header "$2" "$1"
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elif [ $# -eq 3 ]; then
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set -- --header "$2" --header "$3" "$1"
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fi
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wget -qO- "$@"
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fi
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}
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# https://docs.docker.com/docker-hub/api/latest/#tag/repositories
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manifest_list_url="https://hub.docker.com/v2/repositories/${image}/tags/${ref}"
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# If we're pulling the image for the default platform, or the ref is already
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# a SHA-256 image digest, then we don't need to look up anything.
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if [ "${PLATFORM}" = "${PLATFORM_DEFAULT}" ] || [ -z "${ref##sha256:*}" ]; then
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digest="${ref}"
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else
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echo "Getting multi-arch manifest list..."
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digest=$(fetch "${manifest_list_url}" |
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# Break up the single-line JSON output into separate lines by adding
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# newlines before and after the chars '[', ']', '{', and '}'.
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sed -e 's/\([][{}]\)/\n\1\n/g' |
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# Extract the "images":[...] list.
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sed -n '/"images":/,/]/ p' |
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# Each image's details are now on a separate line, e.g.
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# "architecture":"arm64","features":"","variant":"v8","digest":"sha256:054c85801c4cb41511b176eb0bf13a2c4bbd41611ddd70594ec3315e88813524","os":"linux","os_features":"","os_version":null,"size":828724,"status":"active","last_pulled":"2022-09-02T22:46:48.240632Z","last_pushed":"2022-09-02T00:42:45.69226Z"
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# The image details are interspersed with lines of stray punctuation,
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# so grep for an arbitrary string that must be in these lines.
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grep architecture |
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# Search for an image that matches the platform.
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while read -r image; do
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# Arch is probably most likely to be unique, so check that first.
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arch="$(echo ${image} | extract 'architecture')"
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if [ "${arch}" != "${ARCH}" ]; then continue; fi
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os="$(echo ${image} | extract 'os')"
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if [ "${os}" != "${OS}" ]; then continue; fi
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variant="$(echo ${image} | extract 'variant')"
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if [ "${variant}" = "${VARIANT}" ]; then
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echo ${image} | extract 'digest'
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break
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fi
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done)
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fi
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if [ -n "${digest}" ]; then
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echo "Platform ${PLATFORM} resolved to '${digest}'..."
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else
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echo "No image digest found. Verify that the image, ref, and platform are valid."
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exit 1
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fi
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# https://docs.docker.com/registry/spec/auth/token/#how-to-authenticate
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api_token_url="https://auth.docker.io/token?service=registry.docker.io&scope=repository:$image:pull"
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# https://github.com/docker/distribution/blob/master/docs/spec/api.md#pulling-an-image-manifest
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manifest_url="https://registry-1.docker.io/v2/${image}/manifests/${digest}"
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# https://github.com/docker/distribution/blob/master/docs/spec/api.md#pulling-a-layer
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blobs_base_url="https://registry-1.docker.io/v2/${image}/blobs"
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echo "Getting API token..."
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token=$(fetch "${api_token_url}" | extract 'token')
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auth_header="Authorization: Bearer $token"
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v2_header="Accept: application/vnd.docker.distribution.manifest.v2+json"
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echo "Getting image manifest for $image:$ref..."
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layers=$(fetch "${manifest_url}" "${auth_header}" "${v2_header}" |
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# Extract `digest` values only after the `layers` section appears.
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sed -n '/"layers":/,$ p' |
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extract 'digest')
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if [ -z "${layers}" ]; then
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echo "No layers returned. Verify that the image and ref are valid."
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exit 1
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fi
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mkdir -p "${OUT_DIR}"
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for layer in $layers; do
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hash="${layer#sha256:}"
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echo "Fetching and extracting layer ${hash}..."
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fetch "${blobs_base_url}/${layer}" "${auth_header}" | gzip -d | tar -C "${OUT_DIR}" -xf -
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# Ref: https://github.com/moby/moby/blob/master/image/spec/v1.2.md#creating-an-image-filesystem-changeset
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# https://github.com/moby/moby/blob/master/pkg/archive/whiteouts.go
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# Search for "whiteout" files to indicate files deleted in this layer.
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OLD_IFS="${IFS}"
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find "${OUT_DIR}" -name '.wh.*' | while IFS= read -r f; do
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dir="${f%/*}"
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wh_file="${f##*/}"
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file="${wh_file#.wh.}"
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# Delete both the whiteout file and the whited-out file.
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rm -rf "${dir}/${wh_file}" "${dir}/${file}"
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done
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IFS="${OLD_IFS}"
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done
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echo "Image contents extracted into ${OUT_DIR}."
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21
helpers/vendor/docker-image-extract/LICENSE
vendored
Normal file
21
helpers/vendor/docker-image-extract/LICENSE
vendored
Normal file
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@ -0,0 +1,21 @@
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MIT License
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Copyright (c) 2021 Emmanuel Frecon
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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copies of the Software, and to permit persons to whom the Software is
|
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furnished to do so, subject to the following conditions:
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|
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The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
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|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
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SOFTWARE.
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1
helpers/vendor/docker-image-extract/README.md
vendored
Normal file
1
helpers/vendor/docker-image-extract/README.md
vendored
Normal file
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@ -0,0 +1 @@
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This is taken from https://github.com/efrecon/docker-image-extract
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215
helpers/vendor/docker-image-extract/extract.sh
vendored
Executable file
215
helpers/vendor/docker-image-extract/extract.sh
vendored
Executable file
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@ -0,0 +1,215 @@
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#!/bin/sh
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# If editing from Windows. Choose LF as line-ending
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set -eu
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# Set this to 1 for more verbosity (on stderr)
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EXTRACT_VERBOSE=${EXTRACT_VERBOSE:-0}
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# Destination directory, some %-surrounded keywords will be dynamically replaced
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# by elements of the fully-qualified image name.
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EXTRACT_DEST=${EXTRACT_DEST:-"$(pwd)"}
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# Pull if the image does not exist. If the image had to be pulled, it will
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# automatically be removed once done to conserve space.
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EXTRACT_PULL=${EXTRACT_PULL:-1}
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# Docker client command to use
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EXTRACT_DOCKER=${EXTRACT_DOCKER:-"docker"}
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# Export PATHs to binaries and libraries
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EXTRACT_EXPORT=${EXTRACT_EXPORT:-0}
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# Name of manifest file containing the description of the layers
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EXTRACT_MANIFEST=${EXTRACT_MANIFEST:-"manifest.json"}
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# This uses the comments behind the options to show the help. Not extremly
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# correct, but effective and simple.
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usage() {
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echo "$0 extracts all layers from a Docker image to a directory, will pull if necessary" && \
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grep "[[:space:]].)\ #" "$0" |
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sed 's/#//' |
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sed -r 's/([a-z])\)/-\1/'
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exit "${1:-0}"
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}
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while getopts "t:d:vneh-" opt; do
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case "$opt" in
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d) # How to run the Docker client
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EXTRACT_DOCKER=$OPTARG;;
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e) # Print out commands for PATH extraction
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EXTRACT_EXPORT=1;;
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n) # Do not pull if the image does not exist
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EXTRACT_PULL=0;;
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h) # Print help and exit
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usage;;
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t) # Target directory, will be created if necessary, %-surrounded keywords will be resolved (see manual). Default: current directory
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EXTRACT_DEST=$OPTARG;;
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v) # Turn on verbosity
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EXTRACT_VERBOSE=1;;
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-)
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break;;
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*)
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usage 1;;
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esac
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done
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shift $((OPTIND-1))
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_verbose() {
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if [ "$EXTRACT_VERBOSE" = "1" ]; then
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printf %s\\n "$1" >&2
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fi
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}
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_error() {
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printf %s\\n "$1" >&2
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}
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# This will unfold JSON onliners to arrange for having fields and their values
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# on separated lines. It's sed and grep, don't expect miracles, but this should
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# work against most well-formatted JSON.
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json_unfold() {
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sed -E \
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-e 's/\}\s*,\s*\{/\n\},\n\{\n/g' \
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-e 's/\{\s*"/\{\n"/g' \
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-e 's/(.+)\}/\1\n\}/g' \
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-e 's/"\s*:\s*(("[^"]+")|([a-zA-Z0-9]+))\s*([,$])/": \1\4\n/g' \
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-e 's/"\s*:\s*(("[^"]+")|([a-zA-Z0-9]+))\s*\}/": \1\n\}/g' | \
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grep -vEe '^\s*$'
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}
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extract() {
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# Extract details out of image name
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fullname=$1
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tag=""
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if printf %s\\n "$1"|grep -Eq '@sha256:[a-f0-9A-F]{64}$'; then
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tag=$(printf %s\\n "$1"|grep -Eo 'sha256:[a-f0-9A-F]{64}$')
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fullname=$(printf %s\\n "$1"|sed -E 's/(.*)@sha256:[a-f0-9A-F]{64}$/\1/')
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elif printf %s\\n "$1"|grep -Eq ':[[:alnum:]_][[:alnum:]_.-]{0,127}$'; then
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tag=$(printf %s\\n "$1"|grep -Eo ':[[:alnum:]_][[:alnum:]_.-]{0,127}$'|cut -c 2-)
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fullname=$(printf %s\\n "$1"|sed -E 's/(.*):[[:alnum:]_][[:alnum:]_.-]{0,127}$/\1/')
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fi
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shortname=$(printf %s\\n "$fullname" | awk -F / '{printf $NF}')
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fullname_flat=$(printf %s\\n "$fullname" | sed 's~/~_~g')
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if [ -z "$tag" ]; then
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fullyqualified_flat=$(printf %s_%s\\n "$fullname_flat" "latest")
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else
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fullyqualified_flat=$(printf %s_%s\\n "$fullname_flat" "$tag")
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fi
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||||
# Generate the name of the destination directory, replacing the
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# sugared-strings by their values. We use the ~ character as a separator in
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# the sed expressions as / might appear in the values.
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dst=$(printf %s\\n "$EXTRACT_DEST" |
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sed -E \
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-e "s~%tag%~${tag}~" \
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-e "s~%fullname%~${fullname}~" \
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-e "s~%shortname%~${shortname}~" \
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-e "s~%fullname_flat%~${fullname_flat}~" \
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-e "s~%fullyqualified_flat%~${fullyqualified_flat}~" \
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-e "s~%name%~${1}~" \
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)
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# Pull image on demand, if necessary and when EXTRACT_PULL was set to 1
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imgrm=0
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if ! ${EXTRACT_DOCKER} image inspect "$1" >/dev/null 2>&1 && [ "$EXTRACT_PULL" = "1" ]; then
|
||||
_verbose "Pulling image '$1', will remove it upon completion"
|
||||
${EXTRACT_DOCKER} image pull "$1"
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||||
imgrm=1
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||||
fi
|
||||
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||||
if ${EXTRACT_DOCKER} image inspect "$1" >/dev/null 2>&1 ; then
|
||||
# Create a temporary directory to store the content of the image itself, i.e.
|
||||
# the result of docker image save on the image.
|
||||
TMPD=$(mktemp -t -d image-XXXXX)
|
||||
|
||||
# Extract image to the temporary directory
|
||||
_verbose "Extracting content of '$1' to temporary storage"
|
||||
${EXTRACT_DOCKER} image save "$1" | tar -C "$TMPD" -xf -
|
||||
|
||||
# Create destination directory, if necessary
|
||||
if ! [ -d "$dst" ]; then
|
||||
_verbose "Creating destination directory: '$dst' (resolved from '$EXTRACT_DEST')"
|
||||
mkdir -p "$dst"
|
||||
fi
|
||||
|
||||
# Extract all layers of the image, in the order specified by the manifest,
|
||||
# into the destination directory.
|
||||
if [ -f "${TMPD}/${EXTRACT_MANIFEST}" ]; then
|
||||
json_unfold < "${TMPD}/${EXTRACT_MANIFEST}" |
|
||||
grep -oE '[a-fA-F0-9]{64}/[[:alnum:]]+\.tar' |
|
||||
while IFS= read -r layer; do
|
||||
_verbose "Extracting layer $(printf %s\\n "$layer" | awk -F '/' '{print $1}')"
|
||||
tar -C "$dst" -xf "${TMPD}/${layer}"
|
||||
done
|
||||
else
|
||||
_error "Cannot find $EXTRACT_MANIFEST in image content!"
|
||||
fi
|
||||
|
||||
# Remove temporary content of image save.
|
||||
rm -rf "$TMPD"
|
||||
|
||||
if [ "$EXTRACT_EXPORT" = "1" ]; then
|
||||
# Resolve destination directory to absolute path
|
||||
rdst=$(cd -P -- "$dst" && pwd -P)
|
||||
for top in "" /usr /usr/local; do
|
||||
# Add binaries
|
||||
for sub in /sbin /bin; do
|
||||
bdir=${rdst%/}${top%/}${sub}
|
||||
if [ -d "$bdir" ] \
|
||||
&& [ "$(find "$bdir" -maxdepth 1 -mindepth 1 -type f -executable | wc -l)" -gt "0" ]; then
|
||||
if [ -z "${GITHUB_PATH+x}" ]; then
|
||||
BPATH="${bdir}:${BPATH}"
|
||||
else
|
||||
printf %s\\n "$bdir" >> "$GITHUB_PATH"
|
||||
fi
|
||||
fi
|
||||
done
|
||||
|
||||
# Add libraries
|
||||
for sub in /lib; do
|
||||
ldir=${rdst%/}${top%/}${sub}
|
||||
if [ -d "$ldir" ] \
|
||||
&& [ "$(find "$ldir" -maxdepth 1 -mindepth 1 -type f -executable -name '*.so*'| wc -l)" -gt "0" ]; then
|
||||
LPATH="${ldir}:${LPATH}"
|
||||
fi
|
||||
done
|
||||
done
|
||||
fi
|
||||
else
|
||||
_error "Image $1 not present at Docker daemon"
|
||||
fi
|
||||
|
||||
if [ "$imgrm" = "1" ]; then
|
||||
_verbose "Removing image $1 from host"
|
||||
${EXTRACT_DOCKER} image rm "$1"
|
||||
fi
|
||||
}
|
||||
|
||||
# We need at least one image
|
||||
if [ "$#" = "0" ]; then
|
||||
usage
|
||||
fi
|
||||
|
||||
# Extract all images, one by one, to the target directory
|
||||
BPATH=$(printf %s\\n "$PATH" | sed 's/ /\\ /g')
|
||||
LPATH=$(printf %s\\n "${LD_LIBRARY_PATH:-}" | sed 's/ /\\ /g')
|
||||
for i in "$@"; do
|
||||
extract "$i"
|
||||
done
|
||||
|
||||
if [ "$EXTRACT_EXPORT" = "1" ]; then
|
||||
if [ -z "${GITHUB_PATH+x}" ]; then
|
||||
printf "PATH=\"%s\"\n" "$BPATH"
|
||||
if [ -n "$LPATH" ]; then
|
||||
printf "LD_LIBRARY_PATH=\"%s\"\n" "$LPATH"
|
||||
fi
|
||||
elif [ -n "$LPATH" ]; then
|
||||
printf "LD_LIBRARY_PATH=\"%s\"\n" "$LPATH" >> "$GITHUB_ENV"
|
||||
fi
|
||||
fi
|
||||
Loading…
Add table
Reference in a new issue