build and run seems to work fine. These are the steps I'm taking

./build
./run bank 31337 8545

in other terminal:

nc localhost 31337
1 - launch new instance
2 - get flag
action? 1
hashcash -mb24 qqtpobyc = ? 1:24:220227:qqtpobyc::MblPsycl:2ebd0e

Where the PoW is obtained by running

python3 ./eth_challenge_base/eth_sandbox/hashcash.py -mb24 qqtpobyc

Am I missing anything obvious to run these challenges?

Environment:

echo $PYTHONPATH
/Users/lain/git/mpwn/mp.py
echo $RPC_URL
https://eth-mainnet.alchemyapi.io/v2/{...}

Issue

Run the babyrev challenge, nc babyrev 31337 31338, then connecting to it with nc localhost 31337 will encounter the following error:

Traceback (most recent call last):
  File "/home/ctf/chal.py", line 5, in <module>
    eth_sandbox.new_launch_instance_action(deploy_value=Web3.toWei(50, 'ether')),
TypeError: new_launch_instance_action() got an unexpected keyword argument

Cause

I believe the commit 46974f8 updated the infra to build images with the code from https://github.com/paradigmxyz/paradigm-ctf-infrastructure, but the eth_sandbox package there is not compatible with 2021 CTF.

chal.py in babyrev:

Signature of eth_sandbox.new_launch_instance_action in paradigm-ctf-infrastructure

def new_launch_instance_action(
    do_deploy: Callable[[Web3, str], str],
):

Hi 👋 Thanks for the challenges and for the infrastructure for custom challenges! The code is great, learned a lot from it (reminded me the times when I just started poking around Linux).

When I've built and started babysandbox challenge I've got the "failed to launch instance! please try again" error. After some poking I've found out that it's caused by NodeJS 17. Basically, "ganache-cli" just won't run.

root@a41b14c2f092:/# ganache-cli 
Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:67:19)
    at Object.createHash (node:crypto:130:10)

So, in case if someone else is experiencing the same problem - to fix it set NODE_OPTIONS to --openssl-legacy-provider.

diff --git a/eth_challenge_base/Dockerfile b/eth_challenge_base/Dockerfile
index c28eea9..3d213b4 100644
--- a/eth_challenge_base/Dockerfile
+++ b/eth_challenge_base/Dockerfile
@@ -15,3 +15,4 @@ COPY 98-start-gunicorn /startup
 
 COPY eth_sandbox /usr/lib/python/eth_sandbox
 ENV PYTHONPATH /usr/lib/python
+ENV NODE_OPTIONS --openssl-legacy-provider

You would better provide the tutorial to deploy all these stuff. I have checked a couple of the scripts to figure out how it is working. I would say I need to spend more deploying than solving. It is not normal. I hope you will fix that.