Add universal configuration for a custom private testnet

Author: Christos KK Loverdos

src/main/scala/io/iohk/ethereum/consensus/atomixraft/AtomixRaftConfig.scala

@@ -45,8 +45,10 @@ object AtomixRaftConfig extends Logger {
       case _ ⇒ throw new IllegalArgumentException("parts.length != 1, 2, 3")
     }
 
+  //noinspection ScalaStyle
   def parseNode(id_host_port: String): AtomixNode = {
     val parts = id_host_port.split(":")
+    log.info(s"atomix-raft: id_host_port = ${id_host_port} => parts = ${parts.toList}")
     val nodeId = parseNodeId(parts)
     val endpoint = parseEndpoint(parts)
 

src/universal/conf/mantis.conf

@@ -16,13 +16,17 @@ include "misc.conf"
 include "consensus.conf"
 
 # Uncomment the following include to connect to the Ethereum Hard-Fork network.
-# Note that any settings in this file will override the ones defined in the files above
+# Note that any settings in this file will override the ones defined in the files above.
 # include "ethereumHF.conf"
 
 # Uncomment the following include to connect to the testnet Morden.
-# Note that any settings in this file will override the ones defined in the files above
+# Note that any settings in this file will override the ones defined in the files above.
 # include "morden.conf"
 
 # Uncomment the following include to connect to the testnet Ropsten.
-# Note that any settings in this file will override the ones defined in the files above
+# Note that any settings in this file will override the ones defined in the files above.
 # include "ropsten.conf"
+
+# Uncomment the following include to connect to your custom private testnet.
+# Note that any settings in this file will override the ones defined in the files above.
+# include "private-testnet.conf"

src/universal/conf/private-genesis.json

@@ -0,0 +1,15 @@
+{
+  "extraData": "0x00",
+  "nonce": "0x0000000000000042",
+  "gasLimit": "0x2fefd8",
+  "difficulty": "0x400",
+  "ommersHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+  "timestamp": "0x00",
+  "coinbase": "0x0000000000000000000000000000000000000000",
+  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+  "alloc": {
+    "d7a681378321f472adffb9fdded2712f677e0ba9": {
+      "balance": "1606938044258990275541962092341162602522202993782792835301376"
+    }
+  }
+}

src/universal/conf/private-testnet.conf

@@ -0,0 +1,74 @@
+# Sample configuration for a custom private testnet.
+mantis {
+  sync {
+    # Whether to enable fast-sync
+    do-fast-sync = false
+
+    # Duration for blacklisting a peer. Blacklisting reason include: invalid response from peer, response time-out, etc.
+    # 0 value is a valid duration and it will disable blacklisting completely (which can be useful when all nodes are
+    # are controlled by a single party, eg. private networks)
+    blacklist-duration = 0
+
+    # Set to false to disable broadcasting the NewBlockHashes message, as its usefulness is debatable,
+    # especially in the context of private networks
+    broadcast-new-block-hashes = false
+  }
+
+  blockchain {
+    # DAO fork configuration (Ethereum HF/Classic split)
+    # https://blog.ethereum.org/2016/07/20/hard-fork-completed/
+    dao = null
+
+    # Custom genesis JSON file
+    # null value indicates using default genesis definition that matches the main network
+    custom-genesis-file = "conf/private-genesis.json"
+  }
+
+  network {
+    discovery {
+      # Listening interface for discovery protocol
+      interface = ${mantis.network.server-address.interface}
+    }
+
+    peer {
+      # Ethereum network identifier:
+      # 1 - mainnet, 2 - morden
+      network-id = 2139
+    }
+
+    rpc {
+      # JSON-RPC mode
+      # Available modes are: http, https
+      # Choosing https requires creating a certificate and setting up 'certificate-keystore-path' and
+      # 'certificate-password-file'
+      # See: https://github.com/input-output-hk/mantis/wiki/Creating-self-signed-certificate-for-using-JSON-RPC-with-HTTPS
+      mode = "http"
+
+      # Listening address of JSON-RPC HTTP/HTTPS endpoint
+      interface = ${mantis.network.server-address.interface}
+
+      # Domains allowed to query RPC endpoint. Use "*" to enable requests from any domain.
+      cors-allowed-origins = []
+    }
+
+    # This is the section dedicated to `atomix-raft` consensus.
+    # This consensus protocol is selected by setting `mantis.consensus.protocol = atomix-raft`.
+    atomix-raft {
+      election-timeout = 30.seconds
+
+      # Determines how often new blocks will be forged
+      block-forging-delay = 15.seconds
+
+      # Represents this node.
+      #
+      # ID and PORT are not mandatory.
+      # If PORT is not given, then is assumes the value of
+      # io.atomix.messaging.impl.NettyMessagingService.DEFAULT_PORT, which currently is 5679.
+      # If ID is not given, then its value becomes IP_PORT.
+      local-node = ${mantis.network.server-address.interface}
+
+      # All the other nodes in the cluster, in the same format as with `local-node`.
+      bootstrap-nodes = []
+    }
+  }
+}