Move client to subpackage

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

client/task_opts_unix.go

@@ -0,0 +1,98 @@
+//go:build !windows
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package client
+
+import (
+	"context"
+	"errors"
+
+	"github.com/containerd/containerd/v2/runtime/v2/runc/options"
+)
+
+// WithNoNewKeyring causes tasks not to be created with a new keyring for secret storage.
+// There is an upper limit on the number of keyrings in a linux system
+func WithNoNewKeyring(ctx context.Context, c *Client, ti *TaskInfo) error {
+	if ti.Options == nil {
+		ti.Options = &options.Options{}
+	}
+	opts, ok := ti.Options.(*options.Options)
+	if !ok {
+		return errors.New("invalid v2 shim create options format")
+	}
+	opts.NoNewKeyring = true
+	return nil
+}
+
+// WithNoPivotRoot instructs the runtime not to you pivot_root
+func WithNoPivotRoot(_ context.Context, _ *Client, ti *TaskInfo) error {
+	if ti.Options == nil {
+		ti.Options = &options.Options{}
+	}
+	opts, ok := ti.Options.(*options.Options)
+	if !ok {
+		return errors.New("invalid v2 shim create options format")
+	}
+	opts.NoPivotRoot = true
+	return nil
+}
+
+// WithShimCgroup sets the existing cgroup for the shim
+func WithShimCgroup(path string) NewTaskOpts {
+	return func(ctx context.Context, c *Client, ti *TaskInfo) error {
+		if ti.Options == nil {
+			ti.Options = &options.Options{}
+		}
+		opts, ok := ti.Options.(*options.Options)
+		if !ok {
+			return errors.New("invalid v2 shim create options format")
+		}
+		opts.ShimCgroup = path
+		return nil
+	}
+}
+
+// WithUIDOwner allows console I/O to work with the remapped UID in user namespace
+func WithUIDOwner(uid uint32) NewTaskOpts {
+	return func(ctx context.Context, c *Client, ti *TaskInfo) error {
+		if ti.Options == nil {
+			ti.Options = &options.Options{}
+		}
+		opts, ok := ti.Options.(*options.Options)
+		if !ok {
+			return errors.New("invalid v2 shim create options format")
+		}
+		opts.IoUid = uid
+		return nil
+	}
+}
+
+// WithGIDOwner allows console I/O to work with the remapped GID in user namespace
+func WithGIDOwner(gid uint32) NewTaskOpts {
+	return func(ctx context.Context, c *Client, ti *TaskInfo) error {
+		if ti.Options == nil {
+			ti.Options = &options.Options{}
+		}
+		opts, ok := ti.Options.(*options.Options)
+		if !ok {
+			return errors.New("invalid v2 shim create options format")
+		}
+		opts.IoGid = gid
+		return nil
+	}
+}