remove multi-client hardcoding (#356)

noticed some hardcoded values in the multi-client implementation

Author: b0a7

compose-vc.yml

@@ -44,6 +44,7 @@ services:
     networks: [dvnode]
     environment:
       BEACON_NODE_ADDRESS: http://charon:3600
+      BUILDER_API_ENABLED: ${BUILDER_API_ENABLED:-true}
     labels:
       - "promtail-monitored=${VC_NIMBUS_PROMTAIL_MONITORED:-true}"
     volumes:
@@ -93,7 +94,7 @@ services:
       --validator-keys="/opt/charon/validator_keys:/opt/charon/validator_keys"
       --validators-keystore-locking-enabled false
       --validators-external-signer-slashing-protection-enabled true
-      --validators-builder-registration-default-enabled true
+      --validators-builder-registration-default-enabled ${BUILDER_API_ENABLED:-true}
       --validators-proposer-default-fee-recipient "0x0000000000000000000000000000000000000000"
       --Xobol-dvt-integration-enabled true
     depends_on: [charon]

nimbus/run.sh

@@ -38,9 +38,9 @@ echo "Imported all keys"
 # Now run nimbus VC
 exec /home/user/nimbus_validator_client \
   --data-dir=/home/user/data \
-  --beacon-node="http://charon:3600" \
+  --beacon-node="${BEACON_NODE_ADDRESS}" \
   --doppelganger-detection=false \
   --metrics \
   --metrics-address=0.0.0.0 \
-  --payload-builder=true \
+  --payload-builder=${BUILDER_API_ENABLED} \
   --distributed