Add _netdev option to mount Azure ephemeral disk (#1213)

The ephemeral disk depends on a functional network to be mounted. Even
though it depends on cloud-init.service, sometimes an ordering cycle is
noticed on the instance. If the option "_netdev" is added the problem is
gone.

rhbz: #1998445

Signed-off-by: Eduardo Otubo otubo@redhat.com

cloudinit/config/cc_mounts.py

@@ -392,7 +392,9 @@ def handle(_name, cfg, cloud, log, _args):
     def_mnt_opts = "defaults,nobootwait"
     uses_systemd = cloud.distro.uses_systemd()
     if uses_systemd:
-        def_mnt_opts = "defaults,nofail,x-systemd.requires=cloud-init.service"
+        def_mnt_opts = (
+            "defaults,nofail, x-systemd.requires=cloud-init.service, _netdev"
+        )
 
     defvals = [None, None, "auto", def_mnt_opts, "0", "2"]
     defvals = cfg.get("mount_default_fields", defvals)