basic redis setup

[volovyks]

This is the setup of Docker in the same container. Some people consider it a bad practice, but it may be a simpler solution for node validators. I have no strong opinion here.

It is expected to be executed with

docker run -d \
  --name my-redis-rust-app \
  -v /path/on/host/redis-data:/var/lib/redis \
  -p 6379:6379 \
  -p 8080:8080 \
  my-redis-rust-app

It will persist the apend file on the VM.

cc @kmaus-near @ppca