fix running local validator client simulation

Updated the local network simulation scripts to use the REST interface
for connecting the validator client to the beacon node. Otherwise, the
current scripts produce errors.

tests/simulation/run_node.sh

@@ -96,6 +96,9 @@ $BEACON_NODE_BIN \
   --rpc \
   --rpc-address="127.0.0.1" \
   --rpc-port="$(( $BASE_RPC_PORT + $NODE_ID ))" \
+  --rest \
+  --rest-address="127.0.0.1" \
+  --rest-port="$(( $BASE_REST_PORT + $NODE_ID ))" \
   --metrics \
   --metrics-address="127.0.0.1" \
   --metrics-port="$(( $BASE_METRICS_PORT + $NODE_ID ))" \

tests/simulation/run_validator.sh

@@ -48,4 +48,4 @@ $VALIDATOR_CLIENT_BIN \
   --log-level=${LOG_LEVEL:-DEBUG} \
   --data-dir=$NODE_DATA_DIR \
   --secrets-dir=$NODE_SECRETS_DIR \
-  --rpc-port="$(( $BASE_RPC_PORT + $NODE_ID ))"
+  --beacon-node="http://127.0.0.1:$(( $BASE_REST_PORT + $NODE_ID ))"

tests/simulation/vars.sh

@@ -47,5 +47,5 @@ fi
 
 BASE_P2P_PORT=30000
 BASE_RPC_PORT=7000
+BASE_REST_PORT=5052
 BASE_METRICS_PORT=8008
-