Berachain Local Devnet With Kurtosis β
The following guide will walk you through setting up a local Berachain devnet.
WARNING
Some features like native dApps, contracts, and more may still be a work in progress.
Requirements β
Before starting, emsure that you have the following installed on your computer.
- Docker
version 25.0.2or greater - Kurtosis
v0.90.1or greater - Foundry
v0.2.0or greater - (For testing purposes)
Kurtosis Local Devnet β
Going through this process will set up and run multiple services, execution clients, block explorers, databases, and more.
WARNING
This may require a decent amount of resources to run, and if you run into limits, modify the yaml configuration file to limit the number of services.
If you run the default Kurtosis configuration, it will run the following:
- 5 validator nodes
- 3 full nodes
- 6 additional services
You can modify the beaconkit-local.yaml to fit your system requirements.
Step 1 - Clone Repository & Run Nodes β
The first step is to clone the Beacon-Kit repository.
bash
git clone https://github.com/berachain/beacon-kit;
cd beacon-kit;After cloning the repository, run the make target start-devnet.
TIP
If you encounter issues, please see Debugging Issues.
bash
# FROM: ./beacon-kit
make start-devnet;
# [Expected Output]:
# Checking for Kurtosis installation...
# Kurtosis is already installed
# /Applications/Xcode.app/Contents/Developer/usr/bin/make build-docker VERSION=kurtosis-local start-devnet-no-build
# Build a release docker image for the Cosmos SDK chain...
# docker build \
# --platform linux/arm64 \
# --build-arg GIT_COMMIT=f3738205bcd8c91f3c262618b078eeefb48a67f3 \
# --build-arg GIT_VERSION=kurtosis-local \
# --build-arg GIT_BRANCH=main \
# --build-arg GOOS=linux \
# --build-arg GOARCH=arm64 \
# -f ./Dockerfile \
# -t beacond:kurtosis-local \
# .
# [+] Building 26.0s (33/41)
# ...
# Starlark code successfully run. No output was returned.
#
# β us on GitHub - https://github.com/kurtosis-tech/kurtosis
# INFO[2024-06-27T00:16:11-04:00] ========================================================
# INFO[2024-06-27T00:16:11-04:00] || Created enclave: my-local-devnet ||
# INFO[2024-06-27T00:16:11-04:00] ========================================================
# Name: my-local-devnet
# UUID: 3c23eccb8c64
# Status: RUNNING
# Creation Time: Thu, 27 Jun 2024 00:14:55 EDT
# Flags:
#
# ========================================= Files Artifacts =========================================
# UUID Name
# b5aae73c6271 ancient-butterfly
# 601914df8eea cosmos-genesis-final
# 2c8346b3df40 el_cl_genesis_data
# 38571b521297 genesis_file
# 978405cf0e0f geth-config
# 46c4a6d9988e jwt_file
# 39ab7b9e6b01 kzg_trusted_setup
# 0f6148946b08 multiple-premined-deposits
# c59bf8b35b60 nether_genesis_file
# 0c84ab86dd73 nethermind-config
# e965d7a7faa0 node-beacond-config-0
# 030b600e169c node-beacond-config-1
# 8d644e614430 node-beacond-config-2
# 618d91e2218d node-beacond-config-3
# 447d51638f49 node-beacond-config-4
# 7d656edde80a prometheus-config
# 9d93c25b6424 reth-config
# 3e7411b9e325 vast-storm
#
# ========================================== User Services ==========================================
# UUID Name Ports Status
# 79f7561b4b43 blockscout http: 4000/tcp -> http://127.0.0.1:53414 RUNNING
# 26c02bed0a42 blockscout-postgres postgresql: 5432/tcp -> postgresql://127.0.0.1:53306 RUNNING
# fd16c170438f blockscout-verif http: 8050/tcp -> http://127.0.0.1:53345 RUNNING
# f545ea9b37d9 blutgang admin: 5715/tcp -> http://127.0.0.1:52505 RUNNING
# http: 3000/tcp -> http://127.0.0.1:52506
# b018cf002dc9 cl-full-beaconkit-0 cometbft-grpc: 9090/tcp -> 127.0.0.1:51243 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:51245
# cometbft-rest: 1317/tcp -> 127.0.0.1:51244
# cometbft-rpc: 26657/tcp -> 127.0.0.1:51246
# metrics: 26660/tcp -> 127.0.0.1:51247
# e2e1c5b99640 cl-full-beaconkit-1 cometbft-grpc: 9090/tcp -> 127.0.0.1:51235 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:51237
# cometbft-rest: 1317/tcp -> 127.0.0.1:51236
# cometbft-rpc: 26657/tcp -> 127.0.0.1:51233
# metrics: 26660/tcp -> 127.0.0.1:51234
# 85954427d8ed cl-full-beaconkit-2 cometbft-grpc: 9090/tcp -> 127.0.0.1:51239 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:51241
# cometbft-rest: 1317/tcp -> 127.0.0.1:51240
# cometbft-rpc: 26657/tcp -> 127.0.0.1:51242
# metrics: 26660/tcp -> 127.0.0.1:51238
# 01c06ac63cdf cl-seed-beaconkit-0 cometbft-grpc: 9090/tcp -> 127.0.0.1:51194 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:51191
# cometbft-rest: 1317/tcp -> 127.0.0.1:51195
# cometbft-rpc: 26657/tcp -> 127.0.0.1:51192
# metrics: 26660/tcp -> 127.0.0.1:51193
# 0f4df1fc5824 cl-validator-beaconkit-0 cometbft-grpc: 9090/tcp -> 127.0.0.1:52318 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:52315
# cometbft-rest: 1317/tcp -> 127.0.0.1:52314
# cometbft-rpc: 26657/tcp -> 127.0.0.1:52316
# metrics: 26660/tcp -> 127.0.0.1:52317
# 81d2e6091425 cl-validator-beaconkit-1 cometbft-grpc: 9090/tcp -> 127.0.0.1:52321 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:52323
# cometbft-rest: 1317/tcp -> 127.0.0.1:52322
# cometbft-rpc: 26657/tcp -> 127.0.0.1:52319
# metrics: 26660/tcp -> 127.0.0.1:52320
# 31ac5a4a8367 cl-validator-beaconkit-2 cometbft-grpc: 9090/tcp -> 127.0.0.1:52342 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:52339
# cometbft-rest: 1317/tcp -> 127.0.0.1:52338
# cometbft-rpc: 26657/tcp -> 127.0.0.1:52340
# metrics: 26660/tcp -> 127.0.0.1:52341
# 16a9f7c56f2c cl-validator-beaconkit-3 cometbft-grpc: 9090/tcp -> 127.0.0.1:52332 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:52329
# cometbft-rest: 1317/tcp -> 127.0.0.1:52328
# cometbft-rpc: 26657/tcp -> 127.0.0.1:52330
# metrics: 26660/tcp -> 127.0.0.1:52331
# 350ad296d808 cl-validator-beaconkit-4 cometbft-grpc: 9090/tcp -> 127.0.0.1:52337 RUNNING
# cometbft-p2p: 26656/tcp -> 127.0.0.1:52334
# cometbft-rest: 1317/tcp -> 127.0.0.1:52333
# cometbft-rpc: 26657/tcp -> 127.0.0.1:52335
# metrics: 26660/tcp -> 127.0.0.1:52336
# 6e118e6069ea el-full-geth-2 engine-rpc: 8551/tcp -> 127.0.0.1:51205 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51208
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51204
# metrics: 9001/tcp -> 127.0.0.1:51206
# tcp-discovery: 30303/tcp -> 127.0.0.1:51207
# udp-discovery: 30303/udp -> 127.0.0.1:62535
# a02f6e9ffb57 el-full-reth-0 engine-rpc: 8551/tcp -> 127.0.0.1:51216 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51214
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51215
# metrics: 9001/tcp -> 127.0.0.1:51217
# tcp-discovery: 30303/tcp -> 127.0.0.1:51218
# udp-discovery: 30303/udp -> 127.0.0.1:63859
# 66ec4f86f9a8 el-full-reth-1 engine-rpc: 8551/tcp -> 127.0.0.1:51211 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51209
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51210
# metrics: 9001/tcp -> 127.0.0.1:51212
# tcp-discovery: 30303/tcp -> 127.0.0.1:51213
# udp-discovery: 30303/udp -> 127.0.0.1:52493
# 985f34bb632c el-seed-reth-0 engine-rpc: 8551/tcp -> 127.0.0.1:51178 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51181
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51182
# metrics: 9001/tcp -> 127.0.0.1:51179
# tcp-discovery: 30303/tcp -> 127.0.0.1:51180
# udp-discovery: 30303/udp -> 127.0.0.1:64586
# ff5d4880de7e el-validator-besu-0 engine-rpc: 8551/tcp -> 127.0.0.1:51449 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51452
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51453
# metrics: 9001/tcp -> 127.0.0.1:51450
# tcp-discovery: 30303/tcp -> 127.0.0.1:51451
# udp-discovery: 30303/udp -> 127.0.0.1:55464
# 3677d9c2ab08 el-validator-erigon-4 engine-rpc: 8551/tcp -> 127.0.0.1:51416 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51419
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51415
# metrics: 9001/tcp -> 127.0.0.1:51417
# tcp-discovery: 30303/tcp -> 127.0.0.1:51418
# udp-discovery: 30303/udp -> 127.0.0.1:52140
# 8a8d0605d110 el-validator-geth-3 engine-rpc: 8551/tcp -> 127.0.0.1:51456 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51454
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51455
# metrics: 9001/tcp -> 127.0.0.1:51457
# tcp-discovery: 30303/tcp -> 127.0.0.1:51458
# udp-discovery: 30303/udp -> 127.0.0.1:57790
# 27c61431bf07 el-validator-nethermind-1 engine-rpc: 8551/tcp -> 127.0.0.1:51440 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51443
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51444
# metrics: 9001/tcp -> 127.0.0.1:51441
# tcp-discovery: 30303/tcp -> 127.0.0.1:51442
# udp-discovery: 30303/udp -> 127.0.0.1:60619
# bb829e4f06e5 el-validator-reth-2 engine-rpc: 8551/tcp -> 127.0.0.1:51423 RUNNING
# eth-json-rpc: 8545/tcp -> 127.0.0.1:51421
# eth-json-rpc-ws: 8546/tcp -> 127.0.0.1:51422
# metrics: 9001/tcp -> 127.0.0.1:51424
# tcp-discovery: 30303/tcp -> 127.0.0.1:51420
# udp-discovery: 30303/udp -> 127.0.0.1:52707
# cc6bfe221c4e goomy-blob-spammer <none> RUNNING
# 6e417d31c1dd grafana dashboards: 3000/tcp -> http://127.0.0.1:52841 RUNNING
# 5c5b3c300c71 prometheus http: 9090/tcp -> http://127.0.0.1:52746 RUNNING
# e5d817a7ff20 pyroscope pyroscope: 4040/tcp -> http://127.0.0.1:53224 RUNNING
# fc84cfef2319 tx-fuzz-0 <none> RUNNING
# 1dd2fece619b tx-fuzz-1 <none> RUNNING
# 26df503b9a05 tx-fuzz-10 <none> RUNNING
# 9e979dffa8f3 tx-fuzz-11 <none> RUNNING
# e6bf3df68ab5 tx-fuzz-12 <none> RUNNING
# caf8e90eb636 tx-fuzz-13 <none> RUNNING
# b37cfe191eba tx-fuzz-14 <none> RUNNING
# ac0a401c2e31 tx-fuzz-15 <none> RUNNING
# c7877a3e9efa tx-fuzz-2 <none> RUNNING
# c13b0dd16da6 tx-fuzz-3 <none> RUNNING
# f92b5661000c tx-fuzz-4 <none> RUNNING
# 6afbb7c0a215 tx-fuzz-5 <none> RUNNING
# d6cc564bf8fd tx-fuzz-6 <none> RUNNING
# d6f6ac4fcba1 tx-fuzz-7 <none> RUNNING
# 00dc8cdbb379 tx-fuzz-8 <none> RUNNING
# 78f3100e7ce8 tx-fuzz-9 <none> RUNNINGStep 2 - Test Devnet β
To verify that the local devnet is working, you can use the local Blockscout block explorer, which runs alongside the network.
bash
open http://127.0.0.1:53414; # NOTE: Use the port number for Blockscout from the above output
Step 3 - Configure Wallet β
If you want to see a list of all defined wallet addresses and private keys, refer to constants.star.
Start by adding the network to your MetaMask wallet.
TIP
NOTE: Your port number will be different. Use the port number from the list of services output in Step 1.
| Key | Value |
|---|---|
| Network | |
| RPC URL | |
| Chain ID | |
| Currency symbol | |
| Block explorer URL |
Next import one of the private keys defined in constants.star.
File: ./kurtosis/src/constants.star
python
# ...
PRE_FUNDED_ACCOUNTS = [
new_prefunded_account(
"0x20f33ce90a13a4b5e7697e3544c3083b8f8a51d4",
# Import this β
"fffdbb37105441e14b0ee6330d855d8504ff39e705c3afa8f859ac9865f99306", #
),
# ...If you're successful, you should see the account address 0x20f33ce90a13a4b5e7697e3544c3083b8f8a51d4 added with a the following balance:
Step 4 - Deploy Contract β
To demonstrate deploying a contract to the local devnet, we will use the Berachain Guides HelloWorld.sol.
bash
# FROM: ./beacon-kit;
mkdir tmp;
touch tmp/HelloWorld.sol;File: ./tmp/HelloWorld.sol
solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;
contract HelloWorld {
// Events that allows for emitting a message
event NewGreeting(address sender, string message);
// Variables
string greeting;
// Main constructor run at deployment
constructor(string memory _greeting) {
greeting = _greeting;
emit NewGreeting(msg.sender, _greeting);
}
// Get function
function getGreeting() public view returns (string memory) {
return greeting;
}
// Set function
function setGreeting(string memory _greeting) public {
greeting = _greeting;
emit NewGreeting(msg.sender, _greeting);
}
}We will use a cast request to deploy the bytecode.
bash
# FROM: ./
forge create --rpc-url http://127.0.0.1:51208 --private-key fffdbb37105441e14b0ee6330d855d8504ff39e705c3afa8f859ac9865f99306 tmp/HelloWorld.sol:HelloWorld --constructor-args "Initial greeting message" --legacy;
# [Expected Output]:
# [β ] Compiling...
# No files changed, compilation skipped
# Deployer: 0x20f33CE90A13a4b5E7697E3544c3083B8F8A51D4
# Deployed to: 0x4d31F9761DEe0132A17794018143360113575cFE
# Transaction hash: 0xf18d36b5aeb9b5acc6711b65944a392fd659f34966156e475c5d15cb733677d9You should now be able to see this in the block explorer.
bash
# NOTE: The block explorer will take time to index everything so it might not show up right away
open http://127.0.0.1:53414/tx/0xf18d36b5aeb9b5acc6711b65944a392fd659f34966156e475c5d15cb733677d9;Step 5 - Read Contract β
Next, we will read from the contract to verify that the contract was deployed and the initial message was set.
bash
cast call 0x4d31F9761DEe0132A17794018143360113575cFE "getGreeting()" --rpc-url http://127.0.0.1:51208 | xxd -r -p;
# [Expected Output]:
# Initial greeting messageStep 6 - Write Contract β
Next, we will write to the contract then read from it again with an updated message.
Writing to the contract:
bash
cast send 0x4d31F9761DEe0132A17794018143360113575cFE "setGreeting(string)" "Hello From Devnet" --rpc-url http://127.0.0.1:51208 --private-key fffdbb37105441e14b0ee6330d855d8504ff39e705c3afa8f859ac9865f99306 --legacy;
# [Expected Output]:
# blockHash 0xa47a10872a0b162d7f95f2339a246b3be2fa0b5df262bc0ccb9ebd50bcc20269
# blockNumber 1783
# contractAddress
# cumulativeGasUsed 29746
# effectiveGasPrice 258831769
# from 0x20f33CE90A13a4b5E7697E3544c3083B8F8A51D4
# gasUsed 29746
# logs [{"address":"0x4d31f9761dee0132a17794018143360113575cfe","topics":["0xcbc299eeb7a1a982d3674880645107c4fe48c3227163794e48540a7522722354"],"data":"0x00000000000000000000000020f33ce90a13a4b5e7697e3544c3083b8f8a51d40000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000001148656c6c6f2046726f6d204465766e6574000000000000000000000000000000","blockHash":"0xa47a10872a0b162d7f95f2339a246b3be2fa0b5df262bc0ccb9ebd50bcc20269","blockNumber":"0x6f7","transactionHash":"0xc7ef2bbd80866be88cbd83abddeeaeab10af5263bc1ef86ce683cafbd52d8a16","transactionIndex":"0x0","logIndex":"0x0","removed":false}]
# logsBloom 0x00000000000000000000000000000000008000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000080000000100040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
# root
# status 1 (success)
# transactionHash 0xc7ef2bbd80866be88cbd83abddeeaeab10af5263bc1ef86ce683cafbd52d8a16
# transactionIndex 0
# type 0
# blobGasPrice
# blobGasUsed
# to 0x4d31F9761DEe0132A17794018143360113575cFEReading from the contract:
bash
cast call 0x4d31F9761DEe0132A17794018143360113575cFE "getGreeting()" --rpc-url http://127.0.0.1:51208 | xxd -r -p;
# [Expected Output]:
# Hello From DevnetStep 7 - Tear Down β
To remove all services and clean up, run the following commands:
bash
# FROM: ./beacon-kit
# NOTE: These may get stuck - in that case see Debugging Issues below
make stop-devnet;
make rm-devnet;
# [Expected Output]:
# kurtosis enclave stop my-local-devnet
# ...Debugging Issues β
There is a possibility that Docker will stop working on MacOS. In those cases, try kurtosis clean -a and if the problem still persists try removing all containers and restarting Docker.
bash
# To remove all docker instances quickly
docker rm -f $(docker ps -aq);
# [Expected Output]:
# 7c1dce7eebfb
# 91bb1725781b
# 41691876aeda
# ...