ansible: install Clang on RHEL hosts (#4123)

Refs: #4091

Author: richardlau

ansible/roles/baselayout/vars/main.yml

@@ -85,11 +85,11 @@ packages: {
   ],
 
   rhel8: [
-    'ccache,cmake,gcc-c++,gcc-toolset-10,gcc-toolset-10-libatomic-devel,gcc-toolset-11,gcc-toolset-12,gcc-toolset-12-libatomic-devel,gcc-toolset-13,gcc-toolset-13-libatomic-devel,git,make,python3',
+    'ccache,clang,cmake,gcc-c++,gcc-toolset-10,gcc-toolset-10-libatomic-devel,gcc-toolset-11,gcc-toolset-12,gcc-toolset-12-libatomic-devel,gcc-toolset-13,gcc-toolset-13-libatomic-devel,gcc-toolset-14-libatomic-devel,git,make,python3',
   ],
 
   rhel9: [
-    'ccache,cmake,gcc-c++,gcc-toolset-12,gcc-toolset-12-libatomic-devel,gcc-toolset-13,gcc-toolset-13-libatomic-devel,git,make,python3',
+    'ccache,clang,cmake,gcc-c++,gcc-toolset-12,gcc-toolset-12-libatomic-devel,gcc-toolset-13,gcc-toolset-13-libatomic-devel,gcc-toolset-14-libatomic-devel,git,make,python3',
   ],
 
   smartos: [

ansible/roles/docker/templates/rhel8.Dockerfile.j2

@@ -18,6 +18,7 @@ RUN dnf install --disableplugin=subscription-manager -y \
     && dnf update --disableplugin=subscription-manager -y \
     && dnf install --disableplugin=subscription-manager -y \
       ccache \
+      clang \
       gcc-c++ \
       gcc-toolset-12 \
       git \
@@ -30,6 +31,7 @@ RUN dnf install --disableplugin=subscription-manager -y \
     && dnf --disableplugin=subscription-manager clean all
 
 RUN dnf install --disableplugin=subscription-manager -y \
+      https://repo.almalinux.org/almalinux/8/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-14-libatomic-devel-14.2.1-1.1.el8_10.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-binutils-2.35-11.el8.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-gcc-10.3.1-1.2.el8_5.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-gcc-c++-10.3.1-1.2.el8_5.{{ ansible_architecture }}.rpm \

ansible/roles/docker/templates/ubi81.Dockerfile.j2

@@ -18,6 +18,7 @@ RUN dnf install --disableplugin=subscription-manager -y \
     && dnf update --disableplugin=subscription-manager -y \
     && dnf install --disableplugin=subscription-manager -y \
       ccache \
+      clang \
       gcc-c++ \
       gcc-toolset-12 \
       git \
@@ -30,6 +31,7 @@ RUN dnf install --disableplugin=subscription-manager -y \
     && dnf --disableplugin=subscription-manager clean all
 
 RUN dnf install --disableplugin=subscription-manager -y \
+      https://repo.almalinux.org/almalinux/8/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-14-libatomic-devel-14.2.1-1.1.el8_10.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-binutils-2.35-11.el8.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-gcc-10.3.1-1.2.el8_5.{{ ansible_architecture }}.rpm \
       http://vault.centos.org/centos/8-stream/AppStream/{{ ansible_architecture }}/os/Packages/gcc-toolset-10-gcc-c++-10.3.1-1.2.el8_5.{{ ansible_architecture }}.rpm \

jenkins/scripts/select-compiler.sh

@@ -50,6 +50,13 @@ if [ "$NODEJS_MAJOR_VERSION" -ge "25" ]; then
       echo "Compiler set to Clang" `${CXX} -dumpversion`
       return
       ;;
+    *rhel*|*ubi*)
+      echo "Using Clang for Node.js $NODEJS_MAJOR_VERSION"
+      export CC="ccache clang"
+      export CXX="ccache clang++"
+      echo "Compiler set to Clang" `${CXX} -dumpversion`
+      return
+      ;;
   esac
 fi