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feat: make number of validators customizable #148

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c411c7c
Update test-node.bash
crStiv Sep 17, 2025
6711d80
Update docker-compose.yaml
crStiv Sep 17, 2025
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7 changes: 3 additions & 4 deletions docker-compose.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -86,14 +86,13 @@ services:

# Creates a genesis state for the beacon chain using a YAML configuration file and
# a deterministic set of validators
# TODO: Make num validators customizable
create_beacon_chain_genesis:
image: "gcr.io/prysmaticlabs/prysm/cmd/prysmctl:latest"
command:
- testnet
- generate-genesis
- --fork=deneb
- --num-validators=64
- --num-validators=${NUM_VALIDATORS:-64}
- --genesis-time-delay=15
- --output-ssz=/consensus/genesis.ssz
- --chain-config-file=/config/prysm.yaml
Expand Down Expand Up @@ -135,15 +134,15 @@ services:
- "consensus:/consensus"
- "config:/config"

# We run a validator client with 64, deterministically-generated keys that match
# We run a validator client with deterministically-generated keys that match
# The validator keys present in the beacon chain genesis state generated a few steps above.
prysm_validator:
image: "gcr.io/prysmaticlabs/prysm/validator:stable"
command:
- --beacon-rpc-provider=prysm_beacon_chain:5000
- --datadir=/consensus/validatordata
- --accept-terms-of-use
- --interop-num-validators=64
- --interop-num-validators=${NUM_VALIDATORS:-64}
- --interop-start-index=0
- --chain-config-file=/config/prysm.yaml
depends_on:
Expand Down
15 changes: 15 additions & 0 deletions test-node.bash
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ l1chainid=1337
simple=true
l2anytrust=false
l2timeboost=false
num_validators=64

# Use the dev versions of nitro/blockscout
dev_nitro=false
Expand Down Expand Up @@ -266,6 +267,15 @@ while [[ $# -gt 0 ]]; do
l2timeboost=true
shift
;;
--num-validators)
num_validators=$2
if ! [[ $num_validators =~ ^[0-9]+$ ]] || [ $num_validators -lt 1 ] || [ $num_validators -gt 1000 ]; then
echo "Error: num-validators must be a positive integer between 1 and 1000, got: $num_validators"
exit 1
fi
shift
shift
;;
--redundantsequencers)
simple=false
redundantsequencers=$2
Expand Down Expand Up @@ -310,6 +320,7 @@ while [[ $# -gt 0 ]]; do
echo --l3-token-bridge Deploy L2-L3 token bridge. Only valid if also '--l3node' is provided
echo --l2-anytrust run the L2 as an AnyTrust chain
echo --l2-timeboost run the L2 with Timeboost enabled, including auctioneer and bid validator
echo --num-validators number of validators for proof-of-stake consensus [1-1000] \(default: 64\)
echo --batchposters batch posters [0-3]
echo --redundantsequencers redundant sequencers [0-3]
echo --detach detach from nodes after running them
Expand All @@ -334,6 +345,10 @@ while [[ $# -gt 0 ]]; do
esac
done

# Export NUM_VALIDATORS for docker-compose
export NUM_VALIDATORS=$num_validators
echo "Using NUM_VALIDATORS: $NUM_VALIDATORS"

NODES="sequencer"
INITIAL_SEQ_NODES="sequencer"

Expand Down