1 files changed, 15 insertions, 0 deletions
diff --git a/tools/hook-rhel.sh b/tools/hook-rhel.sh
index 5e963a89..8232414c 100755
--- a/tools/hook-rhel.sh
+++ b/tools/hook-rhel.sh
@@ -2,11 +2,26 @@
 # Current versions of RHEL and CentOS do not honor the directory
 # /etc/dhcp/dhclient-exit-hooks.d so this file can be placed in
 # /etc/dhcp/dhclient.d instead
+is_azure() {
+    local dmi_path="/sys/class/dmi/id/board_vendor" vendor=""
+    if [ -e "$dmi_path" ] && read vendor < "$dmi_path"; then
+        [ "$vendor" = "Microsoft Corporation" ] && return 0
+    fi
+    return 1
+}
+
+is_enabled() {
+    # only execute hooks if cloud-init is enabled and on azure
+    [ -e /run/cloud-init/enabled ] || return 1
+    is_azure
+}
 
 hook-rhel_config(){
+    is_enabled || return 0
     cloud-init dhclient-hook up "$interface"
 }
 
 hook-rhel_restore(){
+    is_enabled || return 0
     cloud-init dhclient-hook down "$interface"
 }