display ROFL component messages

[HarryR]

When developing ROFL apps anything that's printed to stdout by the component is dumped into the compute-0/node.log file, however it's a massive pain to jump into the container and remember exactly which file to tail and grep through the spam.

Instead, I suggest that this info is output to the console, after it says Container start-up took NN seconds...

I'm using this command:

tail -f /serverdir/node/net-runner/network/compute-0/node.log | jq -rc 'select(.component == "rofl") | .component + " " + .ts + ": " + .msg'

Which gives output like:

rofl 2025-01-21T17:28:42.683556852Z: Block Received!
rofl 2025-01-21T17:28:44.550116259Z: Block Received!

You can combine this into a single command via Make, but it's a pain

rofl-logs:
    docker exec $(shell docker ps --format json | jq -rc 'select(.Image|test("sapphire-localnet")) | .Names') bash -c 'tail -f /serverdir/node/net-runner/network/compute-0/node.log' | jq -rc 'select(.component == "rofl") | .component + " " + .ts + ": " + .msg'