Get First Livingdocs Server Docker Image Name

get-first-livingdocs-server-docker-image-name.sh

#!/bin/bash

# ./get-first-livingdocs-server-docker-image-name.sh my-feature release-2018-11 master
# returns the first existing image on dockerhub e.g. 'release-2018-11'
TOKEN=$( curl -sSLd "username=${DOCKER_USERNAME}&password=${DOCKER_PASSWORD}" https://hub.docker.com/v2/users/login | jq -r ".token" )

for DOCKER_TAG in "$@";
do

  IMAGE_TAG=$(curl -sH "Authorization: JWT $TOKEN" "https://hub.docker.com/v2/repositories/livingdocs/server/tags/${DOCKER_TAG}/" | jq 'select(.name != null)' | jq .name | cut -f2 -d$'"')
  if [ ! -z "$IMAGE_TAG" ]; then
    echo $IMAGE_TAG
    exit 0
  fi
done

# default
echo "master"
exit 0