libpod: set search domain independently of nameservers

Set search domain irrespective of nameservers.

Signed-off-by: Aditya R <[email protected]>

libpod/container_internal_common.go

@@ -2010,18 +2010,18 @@ func (c *Container) generateResolvConf() error {
 		}
 	}
 	// If the user provided dns, it trumps all; then dns masq; then resolv.conf
-	var search []string
 	keepHostServers := false
 	if len(nameservers) == 0 {
 		keepHostServers = true
 		// first add the nameservers from the networks status
 		nameservers = networkNameServers
-		// when we add network dns server we also have to add the search domains
-		search = networkSearchDomains
 		// slirp4netns has a built in DNS forwarder.
 		nameservers = c.addSlirp4netnsDNS(nameservers)
 	}
 
+	// Set DNS search domains
+	search := networkSearchDomains
+
 	if len(c.config.DNSSearch) > 0 || len(c.runtime.config.Containers.DNSSearches) > 0 {
 		customSearch := make([]string, 0, len(c.config.DNSSearch)+len(c.runtime.config.Containers.DNSSearches))
 		customSearch = append(customSearch, c.runtime.config.Containers.DNSSearches...)