Simple Docker Registry API v2 Wrapper

docker-api-v2-example.sh

#!/usr/bin/env bash

#
# Simple Docker Registry API v2 Wrapper
#

REPOSITORY="doplicated/client"

get_from_dh() {
	URL="$1"
	TOKEN="$(curl 'https://auth.docker.io/token?service=registry.docker.io&scope=repository:'$REPOSITORY':pull' 2>/dev/null | jq -r '.token')"
	curl -H "Authorization: Bearer ${TOKEN}" "$URL" 2>/dev/null
}

rm -f latest.log other.log same.log
get_from_dh 'https://index.docker.io/v2/doplicated/client/manifests/latest' | jq '.fsLayers' > latest.log
get_from_dh 'https://index.docker.io/v2/doplicated/client/manifests/2.40.0' | jq '.fsLayers' > same.log
get_from_dh 'https://index.docker.io/v2/doplicated/client/manifests/2.42.0' | jq '.fsLayers' > other.log
echo ""
echo "Same"
git diff --no-index latest.log same.log
echo ""
echo "Other"
git diff --no-index latest.log other.log