scrapR | Extract raw underlying data from PDF figures | Document Editor library

127.0.0.1 does not look right to me at all. Let me get the quick checks out of the way first, are you sure you are using the REDIS_HOST env variable in the node app correctly? I would add some console logging to your node app to echo out the env variables to check what they are.

Secondly try attach to the running scrapr-node with docker container exec -it scrapr-node sh or /bin/bash if sh does not work.

Then run nslookup scrapr-redis from the shell, this will give you the ip address of the redis container. if ping scraper-redis returns then you know its an issue with your node app not the docker network.

you can also exec into the redis node and run hostname -I which should show the same ip address as you saw from the other container.

This should help you to debug the issue.

EDIT:

Ensure that you are correctly getting the value from your environment into your node app using process.env.REDIS_HOST and then correctly using that value when connecting to redis something like: