Pact Configuration

[fosskers]

This PR moves configuration of the Pact-integration code (i.e. the PactDbConfig type) to the top level. This harmonizes the config approach with other components, and exposes 5 new options that can be passed to a chainweb-node binary or likewise set in a config file:

  --pact-db-dir PATH       Directory for Pact database files
  --pact-log-dir PATH      Directory for Pact HTTP logs
  --pact-db-pragma PRAGMA  SQLite pragma to use with persistence DBs (can be
                           used multiple times)
  --pact-gas-limit INT     Gas limit for each transaction, defaults to 0
  --pact-gas-rate INT      Gas price per action, defaults to 0

These values are given sensible defaults.

Without this PR, a chainweb-node binary cannot be ran from anywhere but the project directory, as it used to expect a file at test/config/pact.yaml. It no longer expects this, and so can be ran anywhere / loaded into docker images.

[fosskers]

colin@yumi ~> chainweb-node
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=8|component=pact|logger=PactPersist] createTable: TableId "SYS_usertables"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=8|component=pact|logger=PactPersist] createTable: TableId "SYS_keysets"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=8|component=pact|logger=PactPersist] createTable: TableId "SYS_modules"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=8|component=pact|logger=PactPersist] createTable: TableId "SYS_namespaces"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=9|component=pact|logger=PactPersist] createTable: TableId "SYS_usertables"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=9|component=pact|logger=PactPersist] createTable: TableId "SYS_keysets"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=9|component=pact|logger=PactPersist] createTable: TableId "SYS_modules"
2019-03-18T23:27:42.017Z [Info] [host=localhost:36551#kn6CkR|chain=9|component=pact|logger=PactPersist] createTable: TableId "SYS_namespaces"
chainweb-node: ExceptionInLinkedThread ThreadId 33 pact/coin-contract/coin.pact: openFile: does not exist (No such file or directory)

:(

[fosskers]

Yes I took the lazy path for getting the tests to compile again. Pact devs please advise.

[sirlensalot]

Closing, as (a) we aren't running the disk checkpointer in testnet and (b) most of the config expressed here is invalid (ie we won't be configuring gasLimit, and will most likely hardcode the deploy settings)