install_registry_image.sh

#!/bin/sh

# Check if the registry image is already installed
IS_INSTALLED=`docker images | grep -E 'registry\s*latest' | wc -l`

if [ $IS_INSTALLED == 0 ]; then
  . /opt/elasticbeanstalk/hooks/common.sh
 
  # Load ElasticBeanstalk environment variables
  touch /tmp/env.sh
  chmod 600 /tmp/env.sh
 
  jq .docker.env[] $EB_CONFIG_FILE | tr -d \" > /tmp/env.sh
 
  source /tmp/env.sh
  rm /tmp/env.sh

  echo "Downloading registry image"
  aws s3 cp s3://$DOCKER_REPOSITORY_BUCKET/registry-image.tgz /tmp/registry-image.tgz
  echo "Installing registry image"
  cat /tmp/registry-image.tgz | docker import - registry:latest
else
  echo "registry image has been installed"
fi