Djeex/socat-proxy
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Fixed logic and added variables

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Djeex
2025-09-24 13:10:27 +02:00
parent 5176ddeae9
commit b020a30429
4 changed files with 35 additions and 24 deletions
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38
entrypoint.sh
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@@ -4,9 +4,11 @@ set -e
# Set default values if not provided
TARGET_HOST=${TARGET_HOST}
TARGET_PORT=${TARGET_PORT}
UNIX_SOCKET_NAME=${UNIX_SOCKET_NAME}
UNIX_SOCKET_PATH=${UNIX_SOCKET_PATH}
UNIX_SOCKET_NAME=$(basename "$UNIX_SOCKET_PATH")
HOST_SOCKET_PATH=${HOST_SOCKET_PATH}
FULL_HOST_SOCKET_PATH="$HOST_SOCKET_PATH/$UNIX_SOCKET_NAME"
FULL_UNIX_SOCKET_PATH="$UNIX_SOCKET_PATH/$UNIX_SOCKET_NAME"
# Validate required environment variables
if [ -z "$TARGET_HOST" ]; then
@@ -19,6 +21,11 @@ if [ -z "$TARGET_PORT" ]; then
exit 1
fi
if [ -z "$UNIX_SOCKET_NAME" ]; then
echo "ERROR: UNIX_SOCKET_NAME environment variable is required"
exit 1
fi
if [ -z "$UNIX_SOCKET_PATH" ]; then
echo "ERROR: UNIX_SOCKET_PATH environment variable is required"
exit 1
@@ -30,39 +37,36 @@ if [ -z "$HOST_SOCKET_PATH" ]; then
fi
echo "Starting socat proxy..."
echo "UNIX socket: $UNIX_SOCKET_PATH"
echo "TCP target: $TARGET_HOST:$TARGET_PORT"
echo "HOST path: $HOST_SOCKET_PATH"
echo "Socket name: $UNIX_SOCKET_NAME"
# Calculate full socket path
FULL_SOCKET_PATH="$HOST_SOCKET_PATH/$UNIX_SOCKET_NAME"
echo "Full socket path: $FULL_SOCKET_PATH"
echo "Full host socket path: $FULL_HOST_SOCKET_PATH"
echo "Full socket path: $FULL_UNIX_SOCKET_PATH"
# Check if socket file/folder exists and handle it
if [ -e "$FULL_SOCKET_PATH" ]; then
echo "Socket file/folder $FULL_SOCKET_PATH exists, removing it..."
if rm -rf "$FULL_SOCKET_PATH"; then
echo "SUCCESS: Removed existing socket $FULL_SOCKET_PATH"
if [ -e "$FULL_UNIX_SOCKET_PATH" ]; then
echo "Socket file/folder $FULL_UNIX_SOCKET_PATH exists, removing it..."
if rm -rf "$FULL_UNIX_SOCKET_PATH"; then
echo "SUCCESS: Removed existing socket $FULL_UNIX_SOCKET_PATH"
else
echo "ERROR: Failed to remove existing socket $FULL_SOCKET_PATH"
echo "ERROR: Failed to remove existing socket $FULL_UNIX_SOCKET_PATH"
exit 1
fi
fi
echo "Creating socket directory structure..."
# Create directory if needed
if mkdir -p "$HOST_SOCKET_PATH"; then
echo "SUCCESS: Created directory $HOST_SOCKET_PATH"
if mkdir -p "$UNIX_SOCKET_PATH"; then
echo "SUCCESS: Created directory $UNIX_SOCKET_PATH"
else
echo "ERROR: Failed to create directory $HOST_SOCKET_PATH"
echo "ERROR: Failed to create directory $UNIX_SOCKET_PATH"
exit 1
fi
echo "Creating socket with netcat..."
# Create socket with nc -lU in background and then kill it to create the socket file
if timeout 1 nc -lU "$FULL_SOCKET_PATH" 2>/dev/null || true; then
echo "SUCCESS: Socket created at $FULL_SOCKET_PATH"
if timeout 1 nc -lU "$FULL_UNIX_SOCKET_PATH" 2>/dev/null || true; then
echo "SUCCESS: Socket created at $FULL_UNIX_SOCKET_PATH"
else
echo "WARNING: Socket creation with netcat had issues, but continuing..."
fi
@@ -92,7 +96,7 @@ trap cleanup SIGTERM SIGINT
echo "Starting socat proxy..."
# Start socat with verbose logging and redirect to stdout/stderr
if socat -d -d UNIX-LISTEN:$UNIX_SOCKET_PATH,fork,unlink-early TCP:$TARGET_HOST:$TARGET_PORT & then
if socat -d -d UNIX-LISTEN:$FULL_UNIX_SOCKET_PATH,fork,unlink-early TCP:$TARGET_HOST:$TARGET_PORT & then
SOCAT_PID=$!
echo "SUCCESS: Socat started with PID: $SOCAT_PID"
echo "Container is ready and running..."