Merge pull request #11751 from Luap99/net-alias

always add short container id as net alias

3 files changed, 23 insertions, 25 deletions

diff --git a/libpod/network/cni/run.go b/libpod/network/cni/run.go
index 0f91a407c..bd873f89b 100644
--- a/libpod/network/cni/run.go
+++ b/libpod/network/cni/run.go
@@ -186,9 +186,6 @@ outer:
 		}
 		return errors.Errorf("requested static ip %s not in any subnet on network %s", ip.String(), network.libpodNet.Name)
 	}
-	if len(netOpts.Aliases) > 0 && !network.libpodNet.DNSEnabled {
-		return errors.New("cannot set aliases on a network without dns enabled")
-	}
 	return nil
 }
 
diff --git a/libpod/network/cni/run_test.go b/libpod/network/cni/run_test.go
index 0a2c090e1..965203c2a 100644
--- a/libpod/network/cni/run_test.go
+++ b/libpod/network/cni/run_test.go
@@ -966,6 +966,26 @@ var _ = Describe("run CNI", func() {
 			})
 		})
 
+		It("setup with aliases but dns disabled should work", func() {
+			runTest(func() {
+				defNet := types.DefaultNetworkName
+				intName := "eth0"
+				setupOpts := types.SetupOptions{
+					NetworkOptions: types.NetworkOptions{
+						ContainerID: stringid.GenerateNonCryptoID(),
+						Networks: map[string]types.PerNetworkOptions{
+							defNet: {
+								InterfaceName: intName,
+								Aliases:       []string{"somealias"},
+							},
+						},
+					},
+				}
+				_, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
+				Expect(err).ToNot(HaveOccurred())
+			})
+		})
+
 	})
 
 	Context("invalid network setup test", func() {
@@ -1052,27 +1072,6 @@ var _ = Describe("run CNI", func() {
 			})
 		})
 
-		It("setup with aliases but dns disabled", func() {
-			runTest(func() {
-				defNet := types.DefaultNetworkName
-				intName := "eth0"
-				setupOpts := types.SetupOptions{
-					NetworkOptions: types.NetworkOptions{
-						ContainerID: stringid.GenerateNonCryptoID(),
-						Networks: map[string]types.PerNetworkOptions{
-							defNet: {
-								InterfaceName: intName,
-								Aliases:       []string{"somealias"},
-							},
-						},
-					},
-				}
-				_, err := libpodNet.Setup(netNSContainer.Path(), setupOpts)
-				Expect(err).To(HaveOccurred())
-				Expect(err.Error()).To(ContainSubstring("cannot set aliases on a network without dns enabled"))
-			})
-		})
-
 		It("setup without networks", func() {
 			runTest(func() {
 				setupOpts := types.SetupOptions{
diff --git a/libpod/network/types/network.go b/libpod/network/types/network.go
index 68a32d499..2fe4f3da2 100644
--- a/libpod/network/types/network.go
+++ b/libpod/network/types/network.go
@@ -151,7 +151,9 @@ type PerNetworkOptions struct {
 	// StaticIPv4 for this container. Optional.
 	StaticIPs []net.IP `json:"static_ips,omitempty"`
 	// Aliases contains a list of names which the dns server should resolve
-	// to this container. Can only be set when DNSEnabled is true on the Network.
+	// to this container. Should only be set when DNSEnabled is true on the Network.
+	// If aliases are set but there is no dns support for this network the
+	// network interface implementation should ignore this and NOT error.
 	// Optional.
 	Aliases []string `json:"aliases,omitempty"`
 	// StaticMac for this container. Optional.