make it work for rocky

diskimage_builder/elements/yum-minimal/pkg-map

@@ -20,7 +20,7 @@
   },
   "family": {
     "redhat": {
-      "lsb_release": "redhat-lsb-core"
+      "lsb_release": "ed hostname patch postfix tar time"
     }
   }
 }

diskimage_builder/elements/yum-minimal/root.d/08-yum-chroot

@@ -88,6 +88,8 @@ function _install_repos {
     if [[ ${DISTRO_NAME} = fedora ]]; then
         packages+="fedora-release-cloud fedora-release-common "
         packages+="fedora-repos fedora-gpg-keys"
+    elif [[ ${DISTRO_NAME} = rocky ]]; then
+        packages+="rocky-release rocky-repos rocky-gpg-keys"
     elif [[ ${DISTRO_NAME} = centos && ${DIB_RELEASE%-stream} -gt 7 ]]; then
         packages+="centos-gpg-keys "
         if [[ "$DIB_RELEASE" =~ (stream) ]]; then
@@ -167,6 +169,8 @@ function _install_repos {
     if [[ ${DISTRO_NAME} == 'openeuler' ]]; then
         sudo sed -i 's/enabled=0/enabled=1/' $TARGET_ROOT/etc/yum.repos.d/*.repo
     fi
+
+
 }
 
 # _install_pkg_manager packages...
@@ -211,7 +215,8 @@ function _install_pkg_manager {
         local _extra_pkgs=""
 
         if [[ $DISTRO_NAME == "fedora" ]] || \
-            [[ $DISTRO_NAME == "centos" && $DIB_RELEASE > "7" ]]; then
+            [[ $DISTRO_NAME == "centos" && $DIB_RELEASE > "7" ]] || \
+            [[ $DISTRO_NAME == 'rocky' ]]; then
             # glibc from F24 onwards has split locales into "langpack"
             # packages.  Host yum doesn't understand the
             # weak-dependencies glibc now uses to get the
@@ -238,6 +243,10 @@ function _install_pkg_manager {
             sudo ln -s $TARGET_ROOT/etc/dnf/vars $TARGET_ROOT/etc/yum/vars
         fi
 
+        if [[ ${DISTRO_NAME} == 'rocky' ]]; then
+          echo 'stg/rocky' | sudo tee /etc/dnf/vars/contentdir
+        fi
+
         sudo -E ${HOST_YUM} -y \
             --disableexcludes=all \
             --setopt=cachedir=$YUM_CACHE/$ARCH/$DIB_RELEASE \
@@ -308,7 +317,7 @@ _install_repos
 # it seems, as it seems like as part of the Fedora modular updates
 # (https://docs.fedoraproject.org/en-US/modularity/) we can pick up
 # seemingly mismatched libraries.
-if [[ ${DISTRO_NAME} =~ (fedora|openeuler) ]]; then
+if [[ ${DISTRO_NAME} =~ (fedora|openeuler|rocky) ]]; then
     _install_pkg_manager dnf dnf-plugins-core curl
 elif [[ ${DISTRO_NAME} == centos && $DIB_RELEASE > "7" ]]; then
     _install_pkg_manager dnf dnf-plugins-core curl libcurl
@@ -343,6 +352,10 @@ if [[ ${DISTRO_NAME} = centos && ${DIB_RELEASE%-stream} -le 7 ]]; then
     YUM="${YUM} --releasever=${DIB_RELEASE}"
 fi
 
+if [[ ${DISTRO_NAME} == 'rocky' ]]; then
+  YUM="DNF_VAR_contentdir=stg/rocky ${YUM}"
+fi
+
 # we just installed yum/dnf with "outside" tools (yum/rpm) which
 # might have created /var/lib/[yum|rpm] (etc) that are slighlty
 # incompatible.  Refresh everything with the in-chroot tools

diskimage_builder/elements/yum/bin/install-packages

@@ -134,6 +134,10 @@ if [ -n "$WHITELIST" ]; then
     #
     # [1] https://bugzilla.redhat.com/show_bug.cgi?id=965567
     set -o xtrace
+    if [[ -n ${DIB_YUM_DNF_CONTENTDIR:-''} ]]; then
+      echo $DIB_YUM_DNF_CONTENTDIR | sudo tee /etc/dnf/vars/contentdir
+      sudo sed -i -e 's,^mirrorlist,#mirrorlist,' -e 's,^#baseurl,baseurl,' /etc/yum.repos.d/*.repo
+    fi
     ${YUM} -v -y $ACTION $EXTRA_ARGS $PKGS
 
     if [ "$ACTION" == "install" ]; then

diskimage_builder/elements/yum/post-install.d/99-reset-yum-conf

@@ -6,6 +6,11 @@ fi
 set -eu
 set -o pipefail
 
+
+# if [[ -n ${DIB_YUM_DNF_CONTENTDIR:-''} ]]; then
+#   sudo sed -i 's,^#mirrorlist,mirrorlist,' -e 's,^baseurl,#baseurl,' /etc/yum.repos.d/rocky.repo
+# fi
+
 if [[ ${YUM} == "dnf" ]]; then
     cfg=/etc/dnf/dnf.conf
     cachedir=/var/cache/dnf