Starts private docker repository backed by S3 on ElasticBeanstalk environment. It is supposed to launch before the application container is launched so that the application container image can be pulled from the local private repository.

start_docker_registry_on_eb.sh

#!/bin/bash

. /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

# Start docker repository with name "registry"
docker run \
   --name registry \
   -e SETTINGS_FLAVOR=prod \
   -e DOCKER_REGISTRY_CONFIG=/docker-registry/config/config_sample.yml \
   -e AWS_BUCKET=$DOCKER_REPOSITORY_BUCKET \
   -e STORAGE_PATH=/ \
   -e AWS_KEY=$AWS_ACCESS_KEY_ID \
   -e AWS_SECRET=$AWS_SECRET_KEY \
   -e SEARCH_BACKEND=sqlalchemy \
   -p 49000:5000 -d \
   registry docker-registry
   
nRetry=0
while [[ $((nRetry++)) < 3 ]]; do
   echo "Checking if the registry is up..."
   sleep 5
   RET=`curl http://127.0.0.1:49000/v1/_ping 2>1 /dev/null`
   if [[ $RET == "true" ]]; then
      echo "Registry container is up"
      exit 0
   fi
done

echo "Failed to launch registry container"
exit 1