rocky-container-stackhpc: Add separate Rocky 10 image

elements/rocky-container-stackhpc/containerfiles/10-stackhpc

@@ -0,0 +1,46 @@
+# Based on https://github.com/openstack/diskimage-builder/blob/master/diskimage_builder/elements/rocky-container/containerfiles/10
+# For least surprise when a new minor version is out, specify the full version, eg `ROCKY_VERSION=10.1`
+ARG ROCKY_VERSION=10
+FROM quay.io/rockylinux/rockylinux:${ROCKY_VERSION}
+ARG ROCKY_USE_CUSTOM_DNF_MIRRORS="false"
+# Comma-delimited list of repo URLs
+ARG ROCKY_CUSTOM_DNF_MIRROR_URLS
+
+RUN if [[ ${ROCKY_USE_CUSTOM_DNF_MIRRORS} != "false" ]]; then \
+      dnf -y install 'dnf-command(config-manager)' && \
+      mkdir /tmp/orig_repos && mv /etc/yum.repos.d/*.repo /tmp/orig_repos/ && \
+      for REPO_URL in $(echo ${ROCKY_CUSTOM_DNF_MIRROR_URLS} | sed 's/,/ /g'); do \
+        dnf config-manager --add-repo ${REPO_URL}; \
+      done && \
+      dnf --allowerasing -y distro-sync; \
+    fi
+
+RUN dnf group install -y 'Minimal Install' --allowerasing && \
+    dnf install -y findutils util-linux cloud-init
+
+# Repositories need to be disabled a second time to downgrade kernel.
+RUN if [[ ${ROCKY_USE_CUSTOM_DNF_MIRRORS} != "false" ]]; then \
+      dnf config-manager --disable \* && \
+      for REPO_URL in $(echo ${ROCKY_CUSTOM_DNF_MIRROR_URLS} | sed 's/,/ /g'); do \
+        dnf config-manager --add-repo ${REPO_URL}; \
+      done && \
+      dnf --allowerasing -y distro-sync; \
+    fi
+
+COPY <<EOF /etc/cloud/cloud.cfg.d/10-NetworkManager.cfg
+---
+system_info:
+  activators:
+    - "network-manager"
+
+merge_type: 'dict(recurse_array)'
+EOF
+
+RUN systemctl unmask console-getty.service dev-hugepages.mount \
+    getty.target sys-fs-fuse-connections.mount systemd-logind.service \
+    systemd-remount-fs.service
+
+# /etc/machine-id needs to be populated for /bin/kernel-install to
+# correctly copy kernels into /boot.  We will clear this out in the
+# final image.
+RUN systemd-machine-id-setup