Make api a Go sub-module

Allow the api to stay at the same v1 go package name and keep using a
1.x version number. This indicates the API is still at 1.x and allows
sharing proto types with containerd 1.6 and 1.7 releases.

Signed-off-by: Derek McGowan <derek@mcg.dev>

core/sandbox/bridge.go

@@ -23,7 +23,7 @@ import (
 	"github.com/containerd/ttrpc"
 	"google.golang.org/grpc"
 
-	api "github.com/containerd/containerd/v2/api/runtime/sandbox/v1"
+	api "github.com/containerd/containerd/api/runtime/sandbox/v1"
 )
 
 // NewClient returns a new sandbox client that handles both GRPC and TTRPC clients.

core/sandbox/controller.go

@@ -21,7 +21,7 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/containerd/containerd/v2/api/types"
+	"github.com/containerd/containerd/api/types"
 	"github.com/containerd/containerd/v2/core/mount"
 	"github.com/containerd/platforms"
 	"github.com/containerd/typeurl/v2"

core/sandbox/helpers.go

@@ -17,7 +17,7 @@
 package sandbox
 
 import (
-	"github.com/containerd/containerd/v2/api/types"
+	"github.com/containerd/containerd/api/types"
 	"github.com/containerd/containerd/v2/pkg/protobuf"
 	gogo_types "github.com/containerd/containerd/v2/pkg/protobuf/types"
 	"github.com/containerd/typeurl/v2"

core/sandbox/proxy/controller.go

@@ -19,8 +19,8 @@ package proxy
 import (
 	"context"
 
-	api "github.com/containerd/containerd/v2/api/services/sandbox/v1"
-	"github.com/containerd/containerd/v2/api/types"
+	api "github.com/containerd/containerd/api/services/sandbox/v1"
+	"github.com/containerd/containerd/api/types"
 	"github.com/containerd/containerd/v2/core/mount"
 	"github.com/containerd/containerd/v2/core/sandbox"
 	"github.com/containerd/errdefs"

core/sandbox/proxy/store.go

@@ -19,7 +19,7 @@ package proxy
 import (
 	"context"
 
-	api "github.com/containerd/containerd/v2/api/services/sandbox/v1"
+	api "github.com/containerd/containerd/api/services/sandbox/v1"
 	sb "github.com/containerd/containerd/v2/core/sandbox"
 	"github.com/containerd/errdefs"
 )