Add Support for Hyperledger Besu

[shemnon]

Most of the existing ethereum adapter works fine for Besu except for two
major issues: Besu does not have wallet support (and never will as an
architectual choice) and hence the automatic management of nonces no
longer works.

First, we add two new config vars contractDeployerAddressPrivateKey and
fromAddressPrivateKey and if present prefer the 'raw' transaciton APIs.

Second in the main transaction loop we track the nonce of the current
transaction so this can set the nonces appropriately.

Finally we add in gas estimation rather than a hard coded gas number
so that blocks can be as full as possible.

Besu has a slightly different genesis config from geth, so a besu config
directory in the samples is added. The samples network only uses Clique
right now because PoW is not something enterprises should be deploying.

Signed-off-by: Danno Ferrin danno.ferrin@gmail.com

Checklist

• A link to the issue/user story that the pull request relates to
• How to recreate the problem without the fix
• Design of the fix
• How to prove that the fix works
• Automated tests that prove the fix keeps on working
• Documentation - any JSDoc, website, or Stackoverflow answers?

Issue/User story

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Design of the fix

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Automated Tests

What documentation has been provided for this pull request

[nklincoln]

@shemnon - thanks for raising the PR, at the moment the build is breaking at the license check stage ... it would appear that you need to add the besu sample to the ignore list at the package level within the caliper-samples/package.json, under the license-check-and-add-config section.

A npm run licchk should pass once the above is complete, and the build should be successful 👍

[aklenik]

If you apply my small fixes (sleep, and image tag) and run the following, it works fine:

node ../caliper-cli/caliper.js benchmark run --caliper-workspace . --caliper-benchconfig benchmark/simple/config.yaml --caliper-networkconfig network/besu/1node-clique/ethereum.json

But if you change the number of local clients to 2 in benchmark/simple/config.yaml, then it will hang after a while, the unfinished TXs won't decrease, probably because of the locally maintained nonce.

[aklenik]

@shemnon I would say that leave this as it is (after fixing the license issues), and extend the Ethereum docs page with the Besu support, and note that currently only a single client is supported.
@nklincoln Do you agree with this?

[aklenik]

As discussed yesterday, the Besu PRs will be merged as-is. The last thing is to squash your commits, and it's good to go 👍

[shemnon]

squashed