Update main-net node setup. (#2046)

(cherry picked from commit 2afb412)

protocol/testing/mainnet/mainnet.sh

@@ -46,22 +46,22 @@ set_cosmovisor_binary_permissions() {
 
 create_full_nodes() {
 	# Create directories for full-nodes to use.
-	for i in $(seq 1 $LAST_FULL_NODE_INDEX); do
+	for i in $(seq 0 $LAST_FULL_NODE_INDEX); do
 		FULL_NODE_HOME_DIR="$HOME/chain/.full-node-$i"
 		FULL_NODE_CONFIG_DIR="$FULL_NODE_HOME_DIR/config"
 		dydxprotocold init "full-node" -o --chain-id=$CHAIN_ID --home "$FULL_NODE_HOME_DIR"
 	done
 
 	# Copy the genesis file to the full-node directories.
-	for i in $(seq 1 $LAST_FULL_NODE_INDEX); do
+	for i in $(seq 0 $LAST_FULL_NODE_INDEX); do
 		FULL_NODE_HOME_DIR="$HOME/chain/.full-node-$i"
 		FULL_NODE_CONFIG_DIR="$FULL_NODE_HOME_DIR/config"
 
 		cp "$HOME/genesis.json" "$FULL_NODE_CONFIG_DIR/genesis.json"
 	done
 
 	# Set up CosmosVisor for full-nodes.
-	for i in $(seq 1 $LAST_FULL_NODE_INDEX); do
+	for i in $(seq 0 $LAST_FULL_NODE_INDEX); do
 		FULL_NODE_HOME_DIR="$HOME/chain/.full-node-$i"
 		# DAEMON_NAME is the name of the binary.
 		export DAEMON_NAME=dydxprotocold

protocol/testing/mainnet/start.sh

@@ -9,7 +9,7 @@ set -eo pipefail
 source "./vars.sh"
 
 # Set up CosmosVisor for full-nodes.
-for i in $(seq 1 $LAST_FULL_NODE_INDEX); do
+for i in $(seq 0 $LAST_FULL_NODE_INDEX); do
 	FULL_NODE_HOME_DIR="$HOME/chain/.full-node-$i"
 	# Copy binaries for `cosmovisor` from the docker image into the home directory.
 	# Work-around to ensure docker volume contains the same binaries as the git repo.