Shell script that starts up a local docker registry with a Google Cloud Storage backend using local credentials.

start-local-registry.sh

#!/bin/bash

LOCAL_REGISTRY_NAME=local-docker-registry
GCS_BUCKET=some-bucket
CONFIG_DIR=$HOME/.config

LOCAL_REGISTRY_ID=`docker ps -q $LOCAL_REGISTRY_NAME`

if [ ! -z "$LOCAL_REGISTRY_ID" ]; then

  echo "Found ${LOCAL_REGISTRY_ID}, stopping..."
  docker stop "${LOCAL_REGISTRY_ID}" >/dev/null 2>&1

  echo "Removing..."
  docker rm "${LOCAL_REGISTRY_ID}" >/dev/null 2>&1

fi

echo "Starting..."

LOCAL_REGISTRY_ID=`docker run -d --name="${LOCAL_REGISTRY_NAME}" -e GCS_BUCKET=$GCS_BUCKET -v "${CONFIG_DIR}:/.config" -p 5000:5000 google/docker-registry`

if [ -z "$LOCAL_REGISTRY_ID" ]; then
  >&2 echo "Could not start ${LOCAL_REGISTRY_NAME}"
  exit 1
fi

echo "Waiting for registry to come online (will wait up to 10 seconds)..."

RUNNING="false"
for i in `seq 1 10`; do
  echo "Check #${i}"
  RUNNING=`curl localhost:5000/v1/_ping 2>/dev/null`
  if [ "${RUNNING}" = "true" ]; then
    break
  fi
  sleep 1
done

if [ "$RUNNING" != "true" ]; then
  echo "Local registry never came up, aborting"
  exit 1
fi