Connect to a container running in Docker (Redis) from Cloud Run Emulator locally

Question

I'm making local cloud run services with the Cloud Code plugin to Intellij (PyCharm) but the locally deployed service cannot connect to the redis instance running in Docker:

redis.exceptions.ConnectionError: Error 111 connecting to 127.0.0.1:6379. Connection refused.

I can connect to the locally running redis instance from a python shell, it's just the cloud run service running in minikube/docker that cannot seem to connect to it.

Any ideas?

Edit since people are suggesting completely unrelated posts - The locally running Cloud Run instance makes use of Docker and Minikube to run, and is automatically configured by Cloud Code for Intellij. I suspect that Cloud Code for intellij puts Cloud Run instances into an environment that cannot access services running on MacOS localhost (but can access the Internet), which is why I tagged those specific items in the post. Please limit suggestions to ones that takes these items into account.

Answer 1

If you check Docker network using:

docker network list

You'll see a network called cloud-run-dev-internal. You need to connect your Redis container to that network. To do that, run this command (This instruction assumes that your container name is some-redis):

docker network connect cloud-run-dev-internal some-redis

Double check that your container is connected to the network:

docker network inspect cloud-run-dev-internal

Then connect to Redis Host using the container name:

import redis
...

redis_host = os.environ.get('REDISHOST', 'some-redis')
redis_port = int(os.environ.get('REDISPORT', 6379))
redis_client = redis.StrictRedis(host=redis_host, port=redis_port)