Merge branch 'add-rhel8-build-ci' into 'develop'

Add rhel8 build ci

See merge request oai/cn5g/oai-cn5g-nrf!4

build/scripts/build_helper

@@ -39,7 +39,7 @@ case "$OS_DISTRO" in
   ubuntu) OS_BASEDISTRO="debian"; INSTALLER="apt-get"; CMAKE="cmake" ;;
 esac
 
-IS_CONTAINER=`egrep -c "docker|kubepods|podman" /proc/self/cgroup`
+IS_CONTAINER=`egrep -c "docker|kubepods|podman|buildah|libpod" /proc/self/cgroup || true`
 
 if [ $IS_CONTAINER -eq 0 ]
 then

build/scripts/build_helper.nrf

@@ -240,6 +240,8 @@ install_nghttp2_from_git() {
       binutils-devel \
       autoconf \
       automake \
+      $CMAKE \
+      make \
       libtool \
       pkg-config \
       zlib-devel \