File cloud-init-break-resolv-symlink.patch of Package cloud-init.17807

--- cloudinit/net/sysconfig.py.orig
+++ cloudinit/net/sysconfig.py
@@ -705,6 +705,11 @@ class Renderer(renderer.Renderer):
             resolv_content = self._render_dns(network_state,
                                               existing_dns_path=dns_path)
             if resolv_content:
+                # netconfig checks if /etc/resolv.conf is a symlink and if
+                # that is true will write it's version of the file clobbering
+                # our changes.
+                if os.path.islink(dns_path):
+                    os.unlink(dns_path)
                 util.write_file(dns_path, resolv_content, file_mode)
         if self.networkmanager_conf_path:
             nm_conf_path = util.target_path(target,