Move cri server packages under pkg/cri

Organizes the cri related server packages under pkg/cri

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

pkg/cri/server/service_windows.go

@@ -0,0 +1,52 @@
+// +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 server
+
+import (
+	cni "github.com/containerd/go-cni"
+	"github.com/pkg/errors"
+)
+
+// windowsNetworkAttachCount is the minimum number of networks the PodSandbox
+// attaches to
+const windowsNetworkAttachCount = 1
+
+// initPlatform handles linux specific initialization for the CRI service.
+func (c *criService) initPlatform() error {
+	var err error
+	// For windows, the loopback network is added as default.
+	// There is no need to explicitly add one hence networkAttachCount is 1.
+	// If there are more network configs the pod will be attached to all the
+	// networks but we will only use the ip of the default network interface
+	// as the pod IP.
+	c.netPlugin, err = cni.New(cni.WithMinNetworkCount(windowsNetworkAttachCount),
+		cni.WithPluginConfDir(c.config.NetworkPluginConfDir),
+		cni.WithPluginMaxConfNum(c.config.NetworkPluginMaxConfNum),
+		cni.WithPluginDir([]string{c.config.NetworkPluginBinDir}))
+	if err != nil {
+		return errors.Wrap(err, "failed to initialize cni")
+	}
+
+	return nil
+}
+
+// cniLoadOptions returns cni load options for the windows.
+func (c *criService) cniLoadOptions() []cni.CNIOpt {
+	return []cni.CNIOpt{cni.WithDefaultConf}
+}