Add --dns-search, --dns-opt, --dns-server and --add-host.

Each of these options are destructive in nature, meaning if the user
adds one of them, all current ones are removed from the produced
resolv.conf.

* dns-server allows the user to specify dns servers.
* dns-opt allows the user to specify special resolv.conf options
* dns-search allows the user to specify search domains

The add-host option is not destructive and truly just adds the host
to /etc/hosts.

Signed-off-by: baude <bbaude@redhat.com>

Closes: #231
Approved by: mheon

1 files changed, 13 insertions, 0 deletions

diff --git a/cmd/podman/spec.go b/cmd/podman/spec.go
index 59ea5685a..152d1740c 100644
--- a/cmd/podman/spec.go
+++ b/cmd/podman/spec.go
@@ -584,6 +584,19 @@ func (c *createConfig) GetContainerCreateOptions() ([]libpod.CtrCreateOption, er
 
 	options = append(options, libpod.WithStopSignal(c.StopSignal))
 	options = append(options, libpod.WithStopTimeout(c.StopTimeout))
+	if len(c.DNSSearch) > 0 {
+		options = append(options, libpod.WithDNSSearch(c.DNSSearch))
+	}
+	if len(c.DNSServers) > 0 {
+		options = append(options, libpod.WithDNS(c.DNSServers))
+	}
+	if len(c.DNSOpt) > 0 {
+		options = append(options, libpod.WithDNSOption(c.DNSOpt))
+	}
+	if len(c.HostAdd) > 0 {
+		options = append(options, libpod.WithHosts(c.HostAdd))
+	}
+
 	return options, nil
 }