add insecure registry support for containerd runtime

deploy/iso/minikube-iso/package/containerd-bin/config.toml

@@ -5,6 +5,7 @@ plugin_dir = ""
 disabled_plugins = []
 required_plugins = []
 oom_score = 0
+imports = ["/etc/containerd/config.minikube.toml"]
 
 [grpc]
   address = "/run/containerd/containerd.sock"

deploy/iso/minikube-iso/package/containerd-bin/config.toml.default

@@ -5,6 +5,7 @@ plugin_dir = ""
 disabled_plugins = []
 required_plugins = []
 oom_score = 0
+imports = ["/etc/containerd/config.minikube.toml"]
 
 [grpc]
   address = "/run/containerd/containerd.sock"

pkg/provision/provision.go

@@ -218,7 +218,7 @@ func setContainerRuntimeOptions(name string, p miniProvisioner) error {
 	case "crio", "cri-o":
 		return setCrioOptions(p)
 	case "containerd":
-		return nil
+		return setContainerdOptions(p)
 	default:
 		_, err := p.GenerateDockerOptions(engine.DefaultPort)
 		return err
@@ -249,6 +249,35 @@ CRIO_MINIKUBE_OPTIONS='{{ range .EngineOptions.InsecureRegistry }}--insecure-reg
 	return nil
 }
 
+func setContainerdOptions(p provision.SSHCommander) error {
+	// pass through --insecure-registry
+	var (
+		containerdConfigTmpl = `[plugins]
+  [plugins.cri]
+    [plugins.cri.registry]
+      [plugins.cri.registry.mirrors]
+	{{ range .EngineOptions.InsecureRegistry -}}
+        [plugins.cri.registry.mirrors.\"{{. -}}\"]
+		  endpoint = [\"{{. -}}\"]
+        {{ end -}}`
+		containerdConfigPath = "/etc/containerd/config.minikube.toml"
+	)
+	t, err := template.New("containerdConfigPath").Parse(containerdConfigTmpl)
+	if err != nil {
+		return err
+	}
+	var containerdConfigBuf bytes.Buffer
+	if err := t.Execute(&containerdConfigBuf, p); err != nil {
+		return err
+	}
+
+	if _, err = p.SSHCommand(fmt.Sprintf("sudo mkdir -p %s && printf %%s \"%s\" | sudo tee %s", path.Dir(containerdConfigPath), containerdConfigBuf.String(), containerdConfigPath)); err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func rootFileSystemType(p provision.SSHCommander) (string, error) {
 	fs, err := p.SSHCommand("df --output=fstype / | tail -n 1")
 	if err != nil {