package container // import "github.com/docker/docker/integration/container" import ( "context" "testing" "time" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/network" "github.com/docker/docker/integration/internal/container" "github.com/docker/docker/integration/internal/request" "github.com/docker/docker/internal/testutil" "github.com/docker/docker/pkg/stringid" "github.com/gotestyourself/gotestyourself/poll" "github.com/gotestyourself/gotestyourself/skip" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) // This test simulates the scenario mentioned in #31392: // Having two linked container, renaming the target and bringing a replacement // and then deleting and recreating the source container linked to the new target. // This checks that "rename" updates source container correctly and doesn't set it to null. func TestRenameLinkedContainer(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) aID := container.Run(t, ctx, client, container.WithName("a0")) bID := container.Run(t, ctx, client, container.WithName("b0"), container.WithLinks("a0")) err := client.ContainerRename(ctx, aID, "a1") require.NoError(t, err) container.Run(t, ctx, client, container.WithName("a0")) err = client.ContainerRemove(ctx, bID, types.ContainerRemoveOptions{Force: true}) require.NoError(t, err) bID = container.Run(t, ctx, client, container.WithName("b0"), container.WithLinks("a0")) inspect, err := client.ContainerInspect(ctx, bID) require.NoError(t, err) assert.Equal(t, []string{"/a0:/b0/a0"}, inspect.HostConfig.Links) } func TestRenameStoppedContainer(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) oldName := "first_name" cID := container.Run(t, ctx, client, container.WithName(oldName), container.WithCmd("sh")) poll.WaitOn(t, container.IsInState(ctx, client, cID, "exited"), poll.WithDelay(100*time.Millisecond)) inspect, err := client.ContainerInspect(ctx, cID) require.NoError(t, err) assert.Equal(t, inspect.Name, "/"+oldName) newName := "new_name" + stringid.GenerateNonCryptoID() err = client.ContainerRename(ctx, oldName, newName) require.NoError(t, err) inspect, err = client.ContainerInspect(ctx, cID) require.NoError(t, err) assert.Equal(t, inspect.Name, "/"+newName) } func TestRenameRunningContainerAndReuse(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) oldName := "first_name" cID := container.Run(t, ctx, client, container.WithName(oldName)) poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond)) newName := "new_name" + stringid.GenerateNonCryptoID() err := client.ContainerRename(ctx, oldName, newName) require.NoError(t, err) inspect, err := client.ContainerInspect(ctx, cID) require.NoError(t, err) assert.Equal(t, inspect.Name, "/"+newName) _, err = client.ContainerInspect(ctx, oldName) testutil.ErrorContains(t, err, "No such container: "+oldName) cID = container.Run(t, ctx, client, container.WithName(oldName)) poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond)) inspect, err = client.ContainerInspect(ctx, cID) require.NoError(t, err) assert.Equal(t, inspect.Name, "/"+oldName) } func TestRenameInvalidName(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) oldName := "first_name" cID := container.Run(t, ctx, client, container.WithName(oldName)) poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond)) err := client.ContainerRename(ctx, oldName, "new:invalid") testutil.ErrorContains(t, err, "Invalid container name") inspect, err := client.ContainerInspect(ctx, oldName) require.NoError(t, err) assert.Equal(t, inspect.ID, cID) } // Test case for GitHub issue 22466 // Docker's service discovery works for named containers so // ping to a named container should work, and an anonymous // container without a name does not work with service discovery. // However, an anonymous could be renamed to a named container. // This test is to make sure once the container has been renamed, // the service discovery for the (re)named container works. func TestRenameAnonymousContainer(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) _, err := client.NetworkCreate(ctx, "network1", types.NetworkCreate{}) require.NoError(t, err) cID := container.Run(t, ctx, client, func(c *container.TestContainerConfig) { c.NetworkingConfig.EndpointsConfig = map[string]*network.EndpointSettings{ "network1": {}, } c.HostConfig.NetworkMode = "network1" }) err = client.ContainerRename(ctx, cID, "container1") require.NoError(t, err) err = client.ContainerStart(ctx, "container1", types.ContainerStartOptions{}) require.NoError(t, err) poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond)) count := "-c" if testEnv.OSType == "windows" { count = "-n" } cID = container.Run(t, ctx, client, func(c *container.TestContainerConfig) { c.NetworkingConfig.EndpointsConfig = map[string]*network.EndpointSettings{ "network1": {}, } c.HostConfig.NetworkMode = "network1" }, container.WithCmd("ping", count, "1", "container1")) poll.WaitOn(t, container.IsInState(ctx, client, cID, "exited"), poll.WithDelay(100*time.Millisecond)) inspect, err := client.ContainerInspect(ctx, cID) require.NoError(t, err) assert.Equal(t, inspect.State.ExitCode, 0) } // TODO: should be a unit test func TestRenameContainerWithSameName(t *testing.T) { defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) cID := container.Run(t, ctx, client, container.WithName("old")) poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond)) err := client.ContainerRename(ctx, "old", "old") testutil.ErrorContains(t, err, "Renaming a container with the same name") err = client.ContainerRename(ctx, cID, "old") testutil.ErrorContains(t, err, "Renaming a container with the same name") } // Test case for GitHub issue 23973 // When a container is being renamed, the container might // be linked to another container. In that case, the meta data // of the linked container should be updated so that the other // container could still reference to the container that is renamed. func TestRenameContainerWithLinkedContainer(t *testing.T) { skip.If(t, !testEnv.IsLocalDaemon()) defer setupTest(t)() ctx := context.Background() client := request.NewAPIClient(t) db1ID := container.Run(t, ctx, client, container.WithName("db1")) poll.WaitOn(t, container.IsInState(ctx, client, db1ID, "running"), poll.WithDelay(100*time.Millisecond)) app1ID := container.Run(t, ctx, client, container.WithName("app1"), container.WithLinks("db1:/mysql")) poll.WaitOn(t, container.IsInState(ctx, client, app1ID, "running"), poll.WithDelay(100*time.Millisecond)) err := client.ContainerRename(ctx, "app1", "app2") require.NoError(t, err) inspect, err := client.ContainerInspect(ctx, "app2/mysql") require.NoError(t, err) assert.Equal(t, inspect.ID, db1ID) }