Add kubernetes layer for the ovnk mcp server

Signed-off-by: arkadeepsen <arsen@redhat.com>

Author: arkadeepsen

.gitignore

@@ -0,0 +1 @@
+_output/

Makefile

@@ -0,0 +1,8 @@
+build: clean
+	go build -o _output/ovnk-mcp-server cmd/server/main.go
+
+clean:
+	rm -Rf _output/
+
+test:
+	go test ./...

cmd/server/main.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+
+	mcp "github.com/modelcontextprotocol/go-sdk/mcp"
+	"github.com/ovn-kubernetes/ovn-kubernetes-mcp/pkg/kubernetes"
+)
+
+type MCPServerConfig struct {
+	Mode       string
+	Transport  string
+	Port       string
+	Kubernetes kubernetes.Config
+}
+
+func main() {
+	serverCfg := parseFlags()
+
+	ovnkMcpServer := mcp.NewServer(
+		&mcp.Implementation{Name: "ovn-kubernetes"},
+		&mcp.ServerOptions{HasTools: true},
+	)
+
+	if serverCfg.Mode == "live-cluster" {
+		k8sMcpServer, err := kubernetes.NewMCPServer(serverCfg.Kubernetes)
+		if err != nil {
+			log.Fatalf("Failed to create OVN-K MCP server: %v", err)
+		}
+		fmt.Println("Adding tools to OVN-K MCP server")
+		k8sMcpServer.AddTools(ovnkMcpServer)
+	}
+
+	switch serverCfg.Transport {
+	case "stdio":
+		t := &mcp.LoggingTransport{Transport: &mcp.StdioTransport{}, Writer: os.Stderr}
+		if err := ovnkMcpServer.Run(context.Background(), t); err != nil {
+			log.Printf("Server failed: %v", err)
+		}
+	case "http":
+		handler := mcp.NewStreamableHTTPHandler(func(*http.Request) *mcp.Server {
+			return ovnkMcpServer
+		}, nil)
+		log.Printf("child listening on localhost:%s", serverCfg.Port)
+		log.Fatal(http.ListenAndServe(fmt.Sprintf("localhost:%s", serverCfg.Port), handler))
+	default:
+		log.Fatalf("Invalid transport: %s", serverCfg.Transport)
+	}
+}
+
+func parseFlags() *MCPServerConfig {
+	cfg := &MCPServerConfig{}
+	flag.StringVar(&cfg.Mode, "mode", "live-cluster", "Mode of debugging: live-cluster or offline")
+	flag.StringVar(&cfg.Transport, "transport", "stdio", "Transport to use: stdio or http")
+	flag.StringVar(&cfg.Port, "port", "8080", "Port to use")
+	flag.StringVar(&cfg.Kubernetes.Kubeconfig, "kubeconfig", "", "Path to the kubeconfig file")
+	flag.Parse()
+	return cfg
+}

go.mod

@@ -0,0 +1,70 @@
+module github.com/ovn-kubernetes/ovn-kubernetes-mcp
+
+go 1.24.0
+
+toolchain go1.24.7
+
+require (
+	github.com/modelcontextprotocol/go-sdk v0.5.0
+	k8s.io/api v0.34.1
+	k8s.io/apimachinery v0.34.1
+	k8s.io/client-go v0.34.1
+	k8s.io/pod-security-admission v0.34.1
+	sigs.k8s.io/yaml v1.6.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-openapi/jsonpointer v0.22.0 // indirect
+	github.com/go-openapi/jsonreference v0.21.1 // indirect
+	github.com/go-openapi/swag v0.24.1 // indirect
+	github.com/go-openapi/swag/cmdutils v0.24.0 // indirect
+	github.com/go-openapi/swag/conv v0.24.0 // indirect
+	github.com/go-openapi/swag/fileutils v0.24.0 // indirect
+	github.com/go-openapi/swag/jsonname v0.24.0 // indirect
+	github.com/go-openapi/swag/jsonutils v0.24.0 // indirect
+	github.com/go-openapi/swag/loading v0.24.0 // indirect
+	github.com/go-openapi/swag/mangling v0.24.0 // indirect
+	github.com/go-openapi/swag/netutils v0.24.0 // indirect
+	github.com/go-openapi/swag/stringutils v0.24.0 // indirect
+	github.com/go-openapi/swag/typeutils v0.24.0 // indirect
+	github.com/go-openapi/swag/yamlutils v0.24.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
+	github.com/google/jsonschema-go v0.2.3 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.9.0 // indirect
+	github.com/moby/spdystream v0.5.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
+	github.com/yosida95/uritemplate/v3 v3.0.2 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/net v0.44.0 // indirect
+	golang.org/x/oauth2 v0.31.0 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/term v0.35.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/time v0.13.0 // indirect
+	google.golang.org/protobuf v1.36.9 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/component-base v0.34.1 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 // indirect
+	k8s.io/utils v0.0.0-20250820121507-0af2bda4dd1d // indirect
+	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
+	sigs.k8s.io/randfill v1.0.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
+)