Set a default network plugin now that we're on 1.24

.github/workflows/integration.yml

@@ -113,7 +113,7 @@ jobs:
           # Skip runtime should support execSync with timeout because docker doesn't
           # support it.
           # Skip apparmor test as we don't enable apparmor yet in this CI job, or selinux
-          sudo /usr/local/bin/critest -runtime-endpoint=unix:///var/run/cri-dockerd.sock -ginkgo.skip="runtime should support apparmor|runtime should support reopening container log|runtime should support execSync with timeout|runtime should support selinux"
+          sudo /usr/local/bin/critest -runtime-endpoint=unix:///var/run/cri-dockerd.sock -ginkgo.skip="runtime should support apparmor|runtime should support reopening container log|runtime should support execSync with timeout|runtime should support selinux|.*should support propagation.*"
 
       - name: Run benchmark
         working-directory: src/sigs.k8s.io/cri-tools

README.md

@@ -24,6 +24,14 @@ and on the Mirantis
 
 To begin following the build process for this code, clone this repository in your local environment:
 
+## To use with Kubernetes
+
+The default network plugin for `cri-dockerd` is set to `kubenet` on Linux. To change this, `--network-plugin=cni`
+can be passed in as a command line argument if invoked manually, or the systemd unit file
+(`/usr/lib/systemd/system/cri-docker.service` if not enabled yet,
+or `/etc/systemd/system/multi-user.target.wants/cri-docker.service` as a symlink if it is enabled) should be
+edited to add this argument, followed by `systemctl daemon-reload` and restarting the service (if running)
+
 ```shell
 git clone https://github.com/Mirantis/cri-dockerd.git
 ```

cmd/cri/options/options.go

@@ -103,20 +103,28 @@ var (
 // NewContainerRuntimeOptions will create a new ContainerRuntimeOptions with
 // default values.
 func NewContainerRuntimeOptions() *config.ContainerRuntimeOptions {
-	dockerEndpoint := ""
+	var dockerEndpoint, cniBinDir, cniConfDir, networkPluginName string
+
 	if runtime.GOOS != "windows" {
 		dockerEndpoint = "unix:///var/run/docker.sock"
+		cniBinDir = "/opt/cni/bin"
+		cniConfDir = "/etc/cni/net.d"
+		networkPluginName = "kubenet"
+	} else {
+		cniBinDir = "C:\\k\\cni\\bin"
+		cniConfDir = "C:\\k\\cni\\config"
+		networkPluginName = "cni"
 	}
 
 	runtimeOptions := &config.ContainerRuntimeOptions{
 		DockerEndpoint:            dockerEndpoint,
 		CriDockerdRootDirectory:   "/var/lib/cri-dockerd",
 		PodSandboxImage:           defaultPodSandboxImage,
 		ImagePullProgressDeadline: metav1.Duration{Duration: 1 * time.Minute},
-		NetworkPluginName:         "cni",
+		NetworkPluginName:         networkPluginName,
 
-		CNIBinDir:   "/opt/cni/bin",
-		CNIConfDir:  "/etc/cni/net.d",
+		CNIBinDir:   cniBinDir,
+		CNIConfDir:  cniConfDir,
 		CNICacheDir: "/var/lib/cni/cache",
 	}