remove containerd as dependency

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

client.go

@@ -25,9 +25,9 @@ import (
 	"os/exec"
 	"sync"
 
-	"github.com/containerd/containerd"
-	"github.com/containerd/containerd/oci"
 	types "github.com/containerd/nri/types/v1"
+
+	oci "github.com/opencontainers/runtime-spec/specs-go"
 )
 
 const (
@@ -73,13 +73,29 @@ type Sandbox struct {
 	Labels map[string]string
 }
 
+// process is a subset of containerd's Process interface.
+type process interface {
+	// ID of the process
+	ID() string
+	// Pid is the system specific process id
+	Pid() uint32
+}
+
+// Task is ta subset of containerd's Task interface.
+type Task interface {
+	process
+
+	// Spec returns the current OCI specification for the task
+	Spec(context.Context) (*oci.Spec, error)
+}
+
 // Invoke the ConfList of nri plugins
-func (c *Client) Invoke(ctx context.Context, task containerd.Task, state types.State) ([]*types.Result, error) {
+func (c *Client) Invoke(ctx context.Context, task Task, state types.State) ([]*types.Result, error) {
 	return c.InvokeWithSandbox(ctx, task, state, nil)
 }
 
 // InvokeWithSandbox invokes the ConfList of nri plugins
-func (c *Client) InvokeWithSandbox(ctx context.Context, task containerd.Task, state types.State, sandbox *Sandbox) ([]*types.Result, error) {
+func (c *Client) InvokeWithSandbox(ctx context.Context, task Task, state types.State, sandbox *Sandbox) ([]*types.Result, error) {
 	if len(c.conf.Plugins) == 0 {
 		return nil, nil
 	}

go.mod

@@ -2,11 +2,11 @@ module github.com/containerd/nri
 
 go 1.19
 
-// when updating containerd, adjust the replace rules accordingly
 require (
-	github.com/containerd/containerd v1.6.9
 	github.com/containerd/ttrpc v1.1.1-0.20220420014843-944ef4a40df3
 	github.com/moby/sys/mountinfo v0.6.2
+	github.com/onsi/ginkgo/v2 v2.5.0
+	github.com/onsi/gomega v1.24.0
 	github.com/opencontainers/runtime-spec v1.0.3-0.20220825212826-86290f6a00fb
 	github.com/opencontainers/runtime-tools v0.9.0
 	github.com/sirupsen/logrus v1.8.1
@@ -18,39 +18,14 @@ require (
 )
 
 require (
-	github.com/onsi/ginkgo/v2 v2.5.0
-	github.com/onsi/gomega v1.24.0
-)
-
-require (
-	github.com/Microsoft/go-winio v0.5.2 // indirect
-	github.com/Microsoft/hcsshim v0.9.4 // indirect
-	github.com/containerd/cgroups v1.0.3 // indirect
-	github.com/containerd/continuity v0.3.0 // indirect
-	github.com/containerd/fifo v1.0.0 // indirect
-	github.com/containerd/typeurl v1.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
-	github.com/gogo/googleapis v1.4.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
-	github.com/google/uuid v1.3.0 // indirect
-	github.com/klauspost/compress v1.11.13 // indirect
-	github.com/moby/locker v1.0.1 // indirect
-	github.com/moby/sys/signal v0.6.0 // indirect
-	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799 // indirect
-	github.com/opencontainers/runc v1.1.2 // indirect
-	github.com/opencontainers/selinux v1.10.1 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
-	go.opencensus.io v0.23.0 // indirect
 	golang.org/x/net v0.1.0 // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/text v0.4.0 // indirect
 	google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 // indirect
 	google.golang.org/grpc v1.47.0 // indirect