create entrypoint script for secrets compatibility

Dockerfile

@@ -26,8 +26,6 @@ RUN apk update && apk add --no-cache \
 # openssl?
 
 COPY --from=builder /app/target/release/cached-eth-rpc /app/cached-eth-rpc
+COPY --from=builder /app/entrypoint.sh /app/entrypoint.sh
 
-ENV ENDPOINTS="eth-chain=https://rpc.ankr.com/eth,bsc-chain=https://rpc.ankr.com/bsc"
-
-EXPOSE 8124
 ENTRYPOINT [ "/app/cached-eth-rpc" ]

entrypoint.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+# Ensure the script exits if any command fails
+set -e
+
+# Check if required environment variables are set
+if [ -z "$ETH_SEPOLIA" ] || [ -z "$OP_SEPOLIA" ] || [ -z "$BASE_SEPOLIA" ]; then
+  echo "Error: One or more required environment variables are not set."
+  echo "Please set ETH_SEPOLIA, OP_SEPOLIA, and BASE_SEPOLIA."
+  exit 1
+fi
+
+# Run the cached-eth-rpc command with environment variables
+exec /app/cached-eth-rpc --bind 0.0.0.0 --port 8080 \
+  --endpoint=eth-sepolia="$ETH_SEPOLIA" \
+  --endpoint=op-sepolia="$OP_SEPOLIA" \
+  --endpoint=base-sepolia="$BASE_SEPOLIA"