Fix RHEL8 CI: build OpenSSL 3 from source instead of unavailable openssl3-devel package

Co-authored-by: swilly22 <2638748+swilly22@users.noreply.github.com>
Agent-Logs-Url: https://github.com/FalkorDB/build-image/sessions/bbadc41a-60df-4ba5-85db-70d2dd98acb1

Author: Copilot

Dockerfile.rhel8

@@ -3,22 +3,40 @@ FROM redhat/ubi8 as builder
 # Install dependencies including gcc-toolset-14
 RUN yum update -y && \
     yum install -y wget autoconf automake python3.11 python3.11-pip \
-                   libtool git make openssl3-devel libstdc++-static diffutils gcc-toolset-14 cmake && \
+                   libtool git make perl-core zlib-devel libstdc++-static diffutils gcc-toolset-14 cmake && \
     alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1 && \
     alternatives --auto python3 && \
     yum clean all
 
-# Use OpenSSL 3 for builds
-ENV PKG_CONFIG_PATH="/usr/lib64/pkgconfig:${PKG_CONFIG_PATH}"
-ENV OPENSSL_ROOT_DIR="/usr"
-ENV OPENSSL_INCLUDE_DIR="/usr/include/openssl3"
-ENV OPENSSL_CRYPTO_LIBRARY="/usr/lib64/libcrypto.so.3"
-ENV OPENSSL_SSL_LIBRARY="/usr/lib64/libssl.so.3"
-
 # Enable gcc-toolset-14
 ENV PATH="/opt/rh/gcc-toolset-14/root/usr/bin:${PATH}"
 ENV LD_LIBRARY_PATH="/opt/rh/gcc-toolset-14/root/usr/lib64:${LD_LIBRARY_PATH}"
 
+# Build and install OpenSSL 3 from source (not available as a package in UBI8)
+ARG OPENSSL_VERSION=3.0.15
+ARG OPENSSL_SHA256=23c666d0edf20f14249b3d8f0368acaee9ab585b09e1de82107c66e1f3ec9533
+RUN set -eux; \
+    wget -O openssl.tar.gz "https://github.com/openssl/openssl/releases/download/openssl-${OPENSSL_VERSION}/openssl-${OPENSSL_VERSION}.tar.gz"; \
+    echo "${OPENSSL_SHA256}  openssl.tar.gz" | sha256sum -c -; \
+    tar -xzf openssl.tar.gz; \
+    cd "openssl-${OPENSSL_VERSION}"; \
+    ./Configure --prefix=/usr/local/openssl3 --openssldir=/usr/local/openssl3/ssl --libdir=lib64 shared zlib; \
+    make -j$(nproc); \
+    make install_sw install_ssldirs; \
+    echo "/usr/local/openssl3/lib64" > /etc/ld.so.conf.d/openssl3.conf; \
+    ldconfig; \
+    cd ..; \
+    rm -rf "openssl-${OPENSSL_VERSION}" openssl.tar.gz
+
+# Set OpenSSL 3 environment variables for cmake and pkg-config discovery
+ENV OPENSSL_ROOT_DIR="/usr/local/openssl3"
+ENV OPENSSL_INCLUDE_DIR="/usr/local/openssl3/include"
+ENV OPENSSL_CRYPTO_LIBRARY="/usr/local/openssl3/lib64/libcrypto.so"
+ENV OPENSSL_SSL_LIBRARY="/usr/local/openssl3/lib64/libssl.so"
+ENV PKG_CONFIG_PATH="/usr/local/openssl3/lib64/pkgconfig:${PKG_CONFIG_PATH}"
+ENV PATH="/usr/local/openssl3/bin:${PATH}"
+ENV LD_LIBRARY_PATH="/usr/local/openssl3/lib64:${LD_LIBRARY_PATH}"
+
 # Install Rust
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 ENV PATH="/root/.cargo/bin:${PATH}"