Description
Lately running into this issue, following the docs for setting up execution client (nethermind v1.15.0) where the client runs in a loop stopping and restarting with the error
execution | 2023-01-11 23:41:08.6730|Cannot write authentication secret to '/jwt.hex'. To change file location, set the 'JsonRpc.JwtSecretFile' parameter. System.UnauthorizedAccessException: Access to the path '/jwt.hex' is denied.
execution | ---> System.IO.IOException: Permission denied
This has worked before without any issues, but testing again recently after reports from other users having difficulties. I am encountering the same problem.
Steps to Re-produce
Fresh install of Ubuntu 20.04LTS running locally, update the system, install docker (v20.10.22) and docker-compose (v2.2.3), following instructions here : https://docs.gnosischain.com/node/guide/execution/nethermind/#using-docker
Make directories
mkdir -p /home/$USER/gnosis/execution
mkdir /home/$USER/gnosis/jwtsecret
Create jwt.hex
openssl rand -hex 32 | tr -d "\n" > /home/$USER/gnosis/jwtsecret/jwt.hex
Create docker-compose.yml
Using the example docker-compose.yml here: https://docs.gnosischain.com/node/guide/execution/nethermind/#2-docker-compose
this is with a fresh install of Ubuntu 20.04LTS on a local device, I’ve tried this a few times with the same result.
important Notes
The file jwt.hex is created and visible in the directory ./gnosis/jwtsecret opening the file the contents are what is expected, there don’t look to be any special permissions with the file.
The file jwt.hex does not appear to exist within the docker containers file system