fix(build): allowing more explicit attempts for epel download

Signed-off-by: Raphael Defosseux <raphael.defosseux@openairinterface.org>

build/scripts/build_helper

@@ -296,7 +296,10 @@ check_enable_epel_repos() {
       echo "EPEL repos already present. Good."
     else
       echo "EPEL repos not present. Installing them."
-      $SUDO $INSTALLER install $OPTION https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+      wget --tries=4 --retry-connrefused --wait=8 \
+        https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+      $SUDO $INSTALLER install $OPTION epel-release-latest-7.noarch.rpm
+      rm -f epel-release-latest-7.noarch.rpm
     fi
   fi
 }

docker/Dockerfile.smf.rhel8

@@ -51,6 +51,7 @@ RUN rm -f /etc/rhsm-host && \
         boost-devel \
         openssl-devel \
         openssl \
+        wget \
         libasan && \
     echo "/usr/local/lib" > /etc/ld.so.conf.d/local-lib.conf && \
     echo "/usr/local/lib64" >> /etc/ld.so.conf.d/local-lib.conf