1 files changed, 24 insertions, 0 deletions
diff --git a/tools/hook-network-manager b/tools/hook-network-manager
new file mode 100755
index 00000000..98a36c8a
--- /dev/null
+++ b/tools/hook-network-manager
@@ -0,0 +1,24 @@
+#!/bin/sh
+# This script hooks into NetworkManager(8) via its scripts
+# arguments are 'interface-name' and 'action'
+#
+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
+}
+
+if is_enabled; then
+    case "$1:$2" in
+        *:up) exec cloud-init dhclient-hook up "$1";;
+        *:down) exec cloud-init dhclient-hook down "$1";;
+    esac
+fi