bsd/resolv.d/ avoid duplicated entries (#1163)

Ensure we don't add duplicated nameserver or searchdomains. This can happen on OpenBSD because of dhcpleased.
canonical · Jan 4, 2022 · fef532d · fef532d
1 parent 2fd80c6
commit fef532d
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/cloudinit/net/bsd.py b/cloudinit/net/bsd.py
@@ -138,14 +138,14 @@ def _resolve_conf(self, settings):
             resolvconf.parse()
 
         # Add some nameservers
-        for server in nameservers:
+        for server in set(nameservers):
             try:
                 resolvconf.add_nameserver(server)
             except ValueError:
                 util.logexc(LOG, "Failed to add nameserver %s", server)
 
         # And add any searchdomains.
-        for domain in searchdomains:
+        for domain in set(searchdomains):
             try:
                 resolvconf.add_search_domain(domain)
             except ValueError: