docs: document HOST_IP and HOST_DATA_DIR in env files

.env

@@ -1,3 +1,11 @@
 CLIENT=${CLIENT:-reth}
 HOST_DATA_DIR=./${CLIENT}-data
 USE_BASE_CONSENSUS=true
+
+# OPTIONAL NETWORKING SETTINGS
+# Advertises your public IP to P2P peers for better discovery.
+# HOST_IP=<your-public-ip>
+
+# OPTIONAL STORAGE SETTINGS
+# Override the host directory where chain data is stored.
+# HOST_DATA_DIR=/path/to/chain-data

.env.mainnet

@@ -97,6 +97,15 @@ STATSD_ADDRESS="172.17.0.1"
 # OPTIONAL SETTINGS
 # ===============
 
+# HOST NETWORKING (OPTIONAL - SET IF BEHIND NAT)
+# Advertises your public IP to P2P peers for better peer discovery.
+# HOST_IP=<your-public-ip>
+
+# DATA DIRECTORY (OPTIONAL - OVERRIDE DEFAULT)
+# Override the host directory where chain data is stored.
+# Defaults to ./<CLIENT>-data if not set.
+# HOST_DATA_DIR=/path/to/chain-data
+
 # ETHSTATS MONITORING (OPTIONAL - UNCOMMENT TO ENABLE)
 # OP_GETH_ETH_STATS=nodename:secret@host:port
 # OP_NETHERMIND_ETHSTATS_ENABLED=true

.env.sepolia

@@ -38,9 +38,9 @@ BASE_NODE_L1_TRUST_RPC="false"
 # ENGINE CONFIGURATION
 # -------------------
 OP_NODE_L2_ENGINE_KIND=reth
-OP_NODE_L2_ENGINE_RPC=ws://execution:8551
+OP_NODE_L2_ENGINE_RPC=http://execution:8551
 
-BASE_NODE_L2_ENGINE_RPC=http://execution:8551
+BASE_NODE_L2_ENGINE_RPC=ws://execution:8551
 BASE_NODE_L2_ENGINE_AUTH=/tmp/engine-auth-jwt
 BASE_NODE_L2_ENGINE_AUTH_RAW=688f5d737bad920bdfb2fc2f488d6b6209eebda1dae949a8de91398d932c517a
 
@@ -97,6 +97,15 @@ STATSD_ADDRESS="172.17.0.1"
 # OPTIONAL SETTINGS
 # ===============
 
+# HOST NETWORKING (OPTIONAL - SET IF BEHIND NAT)
+# Advertises your public IP to P2P peers for better peer discovery.
+# HOST_IP=<your-public-ip>
+
+# DATA DIRECTORY (OPTIONAL - OVERRIDE DEFAULT)
+# Override the host directory where chain data is stored.
+# Defaults to ./<CLIENT>-data if not set.
+# HOST_DATA_DIR=/path/to/chain-data
+
 # ETHSTATS MONITORING (OPTIONAL - UNCOMMENT TO ENABLE)
 # OP_GETH_ETH_STATS=nodename:secret@host:port
 # OP_NETHERMIND_ETHSTATS_ENABLED=true

geth/geth-entrypoint

@@ -7,7 +7,7 @@ RPC_PORT="${RPC_PORT:-8545}"
 WS_PORT="${WS_PORT:-8546}"
 AUTHRPC_PORT="${AUTHRPC_PORT:-8551}"
 METRICS_PORT="${METRICS_PORT:-6060}"
-HOST_IP="" # put your external IP address here and open port 30303 to improve peer connectivity
+HOST_IP="${HOST_IP:-}" # put your external IP address here and open port 30303 to improve peer connectivity
 P2P_PORT="${P2P_PORT:-30303}"
 DISCOVERY_PORT="${DISCOVERY_PORT:-30303}"
 ADDITIONAL_ARGS=""