diff options
| -rw-r--r-- | libpod/boltdb_state.go | 2 | ||||
| -rw-r--r-- | libpod/define/errors.go | 3 | ||||
| -rw-r--r-- | libpod/networking_linux.go | 5 | ||||
| -rw-r--r-- | test/e2e/network_connect_disconnect_test.go | 12 |
4 files changed, 19 insertions, 3 deletions
diff --git a/libpod/boltdb_state.go b/libpod/boltdb_state.go index 81f11410b..e5a7e20fc 100644 --- a/libpod/boltdb_state.go +++ b/libpod/boltdb_state.go @@ -1278,7 +1278,7 @@ func (s *BoltState) NetworkConnect(ctr *Container, network string, opts types.Pe } netConnected := ctrNetworksBkt.Get([]byte(network)) if netConnected != nil { - return fmt.Errorf("container %s is already connected to network %q: %w", ctr.ID(), network, define.ErrNetworkExists) + return fmt.Errorf("container %s is already connected to network %q: %w", ctr.ID(), network, define.ErrNetworkConnected) } // Add the network diff --git a/libpod/define/errors.go b/libpod/define/errors.go index fd27e89de..be471c27e 100644 --- a/libpod/define/errors.go +++ b/libpod/define/errors.go @@ -179,6 +179,9 @@ var ( // ErrNetworkInUse indicates the requested operation failed because the network was in use ErrNetworkInUse = errors.New("network is being used") + // ErrNetworkConnected indicates that the required operation failed because the container is already a network endpoint + ErrNetworkConnected = errors.New("network is already connected") + // ErrStoreNotInitialized indicates that the container storage was never // initialized. ErrStoreNotInitialized = errors.New("the container storage was never initialized") diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go index c05796768..c10c3c0b2 100644 --- a/libpod/networking_linux.go +++ b/libpod/networking_linux.go @@ -1357,6 +1357,11 @@ func (c *Container) NetworkConnect(nameOrID, netName string, netOpts types.PerNe } if err := c.runtime.state.NetworkConnect(c, netName, netOpts); err != nil { + // Docker compat: treat requests to attach already attached networks as a no-op, ignoring opts + if errors.Is(err, define.ErrNetworkConnected) && c.ensureState(define.ContainerStateConfigured) { + return nil + } + return err } c.newNetworkEvent(events.NetworkConnect, netName) diff --git a/test/e2e/network_connect_disconnect_test.go b/test/e2e/network_connect_disconnect_test.go index ece1b519d..30a5c6482 100644 --- a/test/e2e/network_connect_disconnect_test.go +++ b/test/e2e/network_connect_disconnect_test.go @@ -157,7 +157,7 @@ var _ = Describe("Podman network connect and disconnect", func() { Expect(con.ErrorToString()).To(ContainSubstring(`"slirp4netns" is not supported: invalid network mode`)) }) - It("podman connect on a container that already is connected to the network should error", func() { + It("podman connect on a container that already is connected to the network should error after init", func() { netName := "aliasTest" + stringid.GenerateNonCryptoID() session := podmanTest.Podman([]string{"network", "create", netName}) session.WaitWithDefaultTimeout() @@ -177,7 +177,15 @@ var _ = Describe("Podman network connect and disconnect", func() { con := podmanTest.Podman([]string{"network", "connect", netName, "test"}) con.WaitWithDefaultTimeout() - Expect(con).Should(ExitWithError()) + Expect(con).Should(Exit(0)) + + init := podmanTest.Podman([]string{"init", "test"}) + init.WaitWithDefaultTimeout() + Expect(init).Should(Exit(0)) + + con2 := podmanTest.Podman([]string{"network", "connect", netName, "test"}) + con2.WaitWithDefaultTimeout() + Expect(con2).Should(ExitWithError()) }) It("podman network connect", func() { |