feat: enable offline mode for the analyzers

Signed-off-by: Harsha Narayana <[email protected]>

cmd/analyze/analyze.go

@@ -38,6 +38,8 @@ var (
 	withDoc         bool
 	interactiveMode bool
 	customAnalysis  bool
+	offlineMode     bool
+	rcaPath         string
 )
 
 // AnalyzeCmd represents the problems command
@@ -48,6 +50,10 @@ var AnalyzeCmd = &cobra.Command{
 	Long: `This command will find problems within your Kubernetes cluster and
 	provide you with a list of issues that need to be resolved`,
 	Run: func(cmd *cobra.Command, args []string) {
+		if offlineMode && rcaPath == "" {
+			color.Red("Offline mode of Analysis needs RCA path to be provided to extract the data")
+			os.Exit(1)
+		}
 		// Create analysis configuration first.
 		config, err := analysis.NewAnalysis(
 			backend,
@@ -59,6 +65,8 @@ var AnalyzeCmd = &cobra.Command{
 			maxConcurrency,
 			withDoc,
 			interactiveMode,
+			offlineMode,
+			rcaPath,
 		)
 
 		if err != nil {
@@ -139,4 +147,6 @@ func init() {
 	// custom analysis flag
 	AnalyzeCmd.Flags().BoolVarP(&customAnalysis, "custom-analysis", "z", false, "Enable custom analyzers")
 
+	AnalyzeCmd.Flags().BoolVar(&offlineMode, "offline-mode", false, "Run Analyzer in Offline mode from RCA collected data")
+	AnalyzeCmd.Flags().StringVar(&rcaPath, "rca-path", "", "Path Container RCA collected from RCA Collector infra")
 }

pkg/analysis/analysis.go

@@ -18,6 +18,7 @@ import (
 	"encoding/base64"
 	"errors"
 	"fmt"
+	"github.com/k8sgpt-ai/k8sgpt/pkg/kubernetes/local"
 	"reflect"
 	"strings"
 	"sync"
@@ -79,11 +80,20 @@ func NewAnalysis(
 	maxConcurrency int,
 	withDoc bool,
 	interactiveMode bool,
+	offlineMode bool,
+	rcaPath string,
 ) (*Analysis, error) {
 	// Get kubernetes client from viper.
 	kubecontext := viper.GetString("kubecontext")
 	kubeconfig := viper.GetString("kubeconfig")
-	client, err := kubernetes.NewClient(kubecontext, kubeconfig)
+	var client *kubernetes.Client
+	var err error
+	if offlineMode {
+		client = &kubernetes.Client{}
+		client.Client, client.CtrlClient = local.GetLocalClient(rcaPath)
+	} else {
+		client, err = kubernetes.NewClient(kubecontext, kubeconfig)
+	}
 	if err != nil {
 		return nil, fmt.Errorf("initialising kubernetes client: %w", err)
 	}

pkg/kubernetes/kubernetes.go

@@ -33,6 +33,14 @@ func (c *Client) GetCtrlClient() ctrl.Client {
 	return c.CtrlClient
 }
 
+func (c *Client) SetKubernetesClient(k kubernetes.Interface) {
+	c.Client = k
+}
+
+func (c *Client) SetCtrlClient(k ctrl.Client) {
+	c.CtrlClient = k
+}
+
 func NewClient(kubecontext string, kubeconfig string) (*Client, error) {
 	var config *rest.Config
 	config, err := rest.InClusterConfig()