infogulch/docker-artifact
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Initial impl download; adjust example.sh to show multiple files

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This commit is contained in:
Joe 2021-05-11 21:16:54 -05:00
parent 804696ccb9
commit 5a23f8ba31
2 changed files with 37 additions and 11 deletions
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25
docker-artifact.sh
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@ -52,6 +52,30 @@ function main {
esac
}
function download {
local image="$1" files=("${@:2}") registry repo tag token labels
{ read -r registry; read -r repo; read -r tag; } <<< "$(image_parts "$1")"
token="$(get_token "$registry" "$repo")"
labels="$(list_json "$registry" "$repo" "$tag" "$token")"
# safely convert bash array of args into json array
files="$(for i in "${files[@]}"; do jq -n --arg f "$i" '$f'; done | jq -s '.')"
# test if all of the requested files are present in manifest labels
if ! jq -e --argjson f "$files" 'keys|contains($f)' <<< "$labels" > /dev/null ; then
echo " ** These files are not avilable to download from $image:"
echo "$(jq -r --argjson f "$files" '$f - keys | .[]' <<< "$labels" | sed 's_^_ _')"
exit 1
fi
# filter labels to just the ones that match files
labels="$(jq --argjson f "$files" 'with_entries(select(. as $e | $f | index($e.key)))' <<< "$labels")"
local shas="$(jq -r 'to_entries | map({(.value): {(.key): null}}) | reduce .[] as $i {{}; . * $i) | to_entries | map({key:.key, value:(.value|keys)}' <<< "$labels")"
echo "$shas"
#local a="$(xargs -L1 -I {} bash -c \
#'curl -s -L -H "Authorization: Bearer $1" "$2/$3" | tar -xz -O "$3"' \
#_ "$token" "https://$registry/v2/$repo/blobs/" {} \
#<<< "$shas")"
echo "Done!"
}
function list {
local registry repo tag token list
{ read -r registry; read -r repo; read -r tag; } <<< "$(image_parts "$1")"
@ -112,7 +136,6 @@ function get_token {
*.dkr.ecr.*.amazonaws.com)
aws ecr get-authorization-token | jq -r '.authorizationData[0].authorizationToken'
;;
esac
}

23
example/example.sh
View File

@ -1,23 +1,26 @@
#!/usr/bin/env bash
set -e
pushd "$(dirname "${BASH_SOURCE[0]}")" &> /dev/null
# Build example image
echo "Rebuilding docker image infogulch/artifact-test"
printf 'FROM busybox \n RUN mkdir app && echo "Hello World!" > /app/testfile.txt' | docker build -t infogulch/artifact-test -
>&2 printf "Rebuilding docker image infogulch/artifact-test\n"
printf 'FROM busybox \n RUN mkdir app && echo "Test data" > /app/testfile.txt && echo "Hello world!" > /hello.txt' | docker build -t infogulch/artifact-test -
# Execute docker artifact to add a label that identifies /app/testfile.txt
echo ""
echo "Labeling /app/testfile.txt in infogulch/artifact-test"
../docker-artifact.sh artifact label infogulch/artifact-test /app/testfile.txt
>&2 printf "\nLabeling /app/testfile.txt and /hello.txt in infogulch/artifact-test\n"
../docker-artifact.sh artifact label infogulch/artifact-test /app/testfile.txt /hello.txt
echo ""
echo "Pushing image infogulch/artifact-test"
>&2 printf "\nPushing image infogulch/artifact-test\n"
docker push infogulch/artifact-test
echo ""
echo "Listing files in infogulch/artifact-test"
>&2 printf "\nListing files in infogulch/artifact-test\n"
../docker-artifact.sh artifact ls infogulch/artifact-test
>&2 printf "\nAttempt to download missing file /oops.txt\n"
! ../docker-artifact.sh artifact download infogulch/artifact-test /oops.txt
>&2 printf "\nDownloading /hello.txt and /app/testfile.txt\n"
../docker-artifact.sh artifact download infogulch/artifact-test /hello.txt /app/testfile.txt
popd &> /dev/null