backend: fix dockerfile

backend/Dockerfile

@@ -14,10 +14,22 @@ FROM debian:bullseye-slim
 ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && apt-get install -y \
-    libssl3 \
+    wget \
+    build-essential \
     ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
+RUN wget https://www.openssl.org/source/openssl-3.0.0.tar.gz && \
+    tar -xzf openssl-3.0.0.tar.gz && \
+    cd openssl-3.0.0 && \
+    ./config --prefix=/usr/local/ssl --openssldir=/usr/local/ssl && \
+    make && \
+    make install && \
+    cd .. && \
+    rm -rf openssl-3.0.0 openssl-3.0.0.tar.gz
+
+ENV LD_LIBRARY_PATH="/usr/local/ssl/lib"
+
 COPY --from=builder /usr/src/backend/target/release/backend /usr/local/bin/backend
 
 CMD ["backend"]