Add Clique Support

[jwasinger]

WIP Don't merge.

Adds support for Clique consensus engine.

[jwasinger]

I'm currently using this to test clique locally. To spin up clique cluster using docker-compose:

• clone this branch and the working branch of clique ([WIP] Clique POA Implementation parity-ethereum#9862 ) to the same directory
• build parity with clique: cargo build -j4
• run the build script in this PR: ./build.sh
• create a deployment cluster configuration. e.g. ./parity-deploy.sh -c clique -n 1 (I haven't tried clique with more than 1 validator)
• docker-compose up

[ddorgan]

@jwasinger super cool! Let me know once you're done and I can do some testing.

[ddorgan]

Minor issue when running from new checkout....

$ ./parity-deploy.sh --config clique --nodes 2
creating account: deployment/1, deployment/1/spec.BKyXhQP7C
creating account: deployment/2, deployment/2/spec.wYv0BTB9P
cat: config/spec/goerli/parity.goerli.genesis: No such file or directory

Had to cp config/spec/geth/goerli.json config/spec/goerli/parity.goerli.genesis

[deanstef]

Sorry is this working?

[jwasinger]

Yeah. It's one hell of a hack to include geth in this script (and it also requires a few other dependencies). I'll write a quick note about how to set it up.

[jwasinger]

Unlikely this will get merged in its current form as it is too hacky and un-maintainable. I talked to @ddorgan at EthCC and there was the idea of rewriting this tool in another language (I think he suggested Rust). I would personally go with Python... but anyways that is unrelated.

[deanstef]

Cool! I would definitely use it, and I look forward your setting up notes. BTW where is the repository? Could I have a look at your script?

However I am a bit confused. I read something about porting Clique consensus engine in Parity (Görli project?). Are you involved in it? Which Ethereum client are you using to deploy a Clique network, Parity or Geth?

Unlikely this will get merged in its current form as it is too hacky and un-maintainable. I talked to @ddorgan at EthCC and there was the idea of rewriting this tool in another language (I think he suggested Rust). I would personally go with Python... but anyways that is unrelated.

I am rewriting this tool as well with more functionalities, integrating the Validator Contract configuration. I would be pleased to help you with the new version in Python.

[deanstef]

Yeah. It's one hell of a hack to include geth in this script (and it also requires a few other dependencies). I'll write a quick note about how to set it up.

Hey! Do you have the guide for it?