Fix monero-wallet-rpc startup on mainnet by omitting --mainnet.

Monero treats mainnet as the default network; only --stagenet and --testnet are valid flags.

monero-wallet-rpc/docker-entrypoint.sh

@@ -3,7 +3,12 @@ set -euo pipefail
 
 WALLET_DIR="/monero/wallet"
 WALLET_PATH="${WALLET_DIR}/${MONERO_WALLET_NAME}"
-NETWORK_FLAG="--${MONERO_NETWORK}"
+
+if [[ "${MONERO_NETWORK}" == "mainnet" ]]; then
+    NETWORK_FLAGS=()
+else
+    NETWORK_FLAGS=(--"${MONERO_NETWORK}")
+fi
 
 mkdir -p "${WALLET_DIR}"
 chmod 700 "${WALLET_DIR}"
@@ -11,7 +16,7 @@ chmod 700 "${WALLET_DIR}"
 if [[ ! -f "${WALLET_PATH}" && ! -f "${WALLET_PATH}.keys" ]]; then
     echo "Creating ${MONERO_NETWORK} wallet at ${WALLET_PATH}..."
 
-    monero-wallet-cli "${NETWORK_FLAG}" \
+    monero-wallet-cli "${NETWORK_FLAGS[@]}" \
         --offline \
         --log-file /dev/null \
         --generate-new-wallet "${WALLET_PATH}" \
@@ -25,7 +30,7 @@ if [[ ! -f "${WALLET_PATH}" && ! -f "${WALLET_PATH}.keys" ]]; then
 fi
 
 exec monero-wallet-rpc \
-    "${NETWORK_FLAG}" \
+    "${NETWORK_FLAGS[@]}" \
     --daemon-address="${MONERO_DAEMON_ADDRESS}" \
     --trusted-daemon \
     --no-initial-sync \