kuber-hydra docker fails with hydra-node 1.2.0

[prabinpkrl]

Environment

• hydra-node: 1.2.0
• kuber-hydra: dquadrant/kuber-hydra:latest
• Network: preprod

Error

Cardano Node : {"blockHash": "...", "slot": 116689906, "tag": "ChainPoint"}
Hydra head state check FAILED: Prelude.read: no parse

Cause

hydra-node 1.2.0 added new fields to the Greetings WebSocket message
(env, networkInfo, me) that kuber-hydra's parser doesn't handle.

Greetings format in 1.2.0:

{ "tag": "Greetings", "headStatus": "Idle", 
  "env": {...}, "networkInfo": {...}, "me": {...} }

Reproduce

docker run --rm --platform linux/amd64 \
  -v $(pwd):/ipc \
  -e HYDRA_URL=ws://172.17.0.1:4001 \
  -e CARDANO_NODE_SOCKET_PATH=/ipc/node.socket \
  -e NETWORK=1 \
  dquadrant/kuber-hydra:latest

Which hydra-node version is kuber-hydra compatible with?

[mesudip]

Hydra head state check FAILED: Prelude.read: no parse

This error message pops up when the url parse fails. Now the container properly parses the url and fails early