updated karmor version to give info on any mandatory release

Signed-off-by: Sibasish Behera <fangedhamster3114@gmail.com>

selfupdate/selfupdate.go

@@ -25,7 +25,7 @@ var BuildDate string
 
 const ghrepo = "kubearmor/kubearmor-client"
 
-func isValidVersion(ver string) bool {
+func IsValidVersion(ver string) bool {
 	_, err := semver.Make(ver)
 	return err == nil
 }
@@ -59,7 +59,7 @@ func getLatest() (*selfupdate.Release, error) {
 
 // IsLatest - check if the current binary is the latest
 func IsLatest(curver string) (bool, string) {
-	if curver != "" && !isValidVersion(curver) {
+	if curver != "" && !IsValidVersion(curver) {
 		return true, ""
 	}
 	latest, err := getLatest()
@@ -110,7 +110,7 @@ func doSelfUpdate(curver string) error {
 func SelfUpdate(c *k8s.Client) error {
 	var ver = GitSummary
 	fmt.Printf("current karmor version %s\n", ver)
-	if !isValidVersion(ver) {
+	if !IsValidVersion(ver) {
 		fmt.Println("version does not match the pattern. Maybe using a locally built karmor!")
 		if !ConfirmUserAction("Do you want to update it?") {
 			return nil

version/version.go

@@ -8,8 +8,11 @@ import (
 	"context"
 	"fmt"
 	"runtime"
+	"strings"
 
+	"github.com/blang/semver"
 	"github.com/fatih/color"
+	"github.com/google/go-github/github"
 	"github.com/kubearmor/kubearmor-client/k8s"
 	"github.com/kubearmor/kubearmor-client/selfupdate"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -18,11 +21,17 @@ import (
 // PrintVersion handler for karmor version
 func PrintVersion(c *k8s.Client) error {
 	fmt.Printf("karmor version %s %s/%s BuildDate=%s\n", selfupdate.GitSummary, runtime.GOOS, runtime.GOARCH, selfupdate.BuildDate)
-	latest, latestVer := selfupdate.IsLatest(selfupdate.GitSummary)
+	curver := selfupdate.GitSummary
+	latest, latestVer := selfupdate.IsLatest(curver)
 	if !latest {
 		color.HiMagenta("update available version " + latestVer)
 		color.HiMagenta("use [karmor selfupdate] to update to latest")
 	}
+
+	mandatory, mandatoryVer := isLatestMandatory(curver)
+	if !mandatory {
+		color.HiMagenta("mandatory update available %s\n", mandatoryVer)
+	}
 	kubearmorVersion, err := getKubeArmorVersion(c)
 	if err != nil {
 		return nil
@@ -35,6 +44,90 @@ func PrintVersion(c *k8s.Client) error {
 	return nil
 }
 
+func isLatestMandatory(curver string) (bool, string) {
+	if curver != "" && !selfupdate.IsValidVersion(curver) {
+		return true, ""
+	}
+
+	latestMandatoryRelease, err := GetLatestMandatoryRelease(curver)
+	if err != nil {
+		fmt.Println("Failed to get info on mandatory release")
+		return true, ""
+	}
+
+	if latestMandatoryRelease == nil {
+		fmt.Println("No mandatory release found")
+		return true, ""
+	}
+
+	latestMandatory, err := semver.ParseTolerant(*latestMandatoryRelease.TagName)
+	if err != nil {
+		return true, ""
+	}
+	return false, latestMandatory.String()
+}
+
+// GetLatestMandatoryRelease finds the latest mandatory release in the given repository
+// with a version greater than or equal to the given current version (in string format).
+// If no such release is found, it returns an empty string and a nil error.
+func GetLatestMandatoryRelease(curver string) (*github.RepositoryRelease, error) {
+	releases, err := FetchReleases()
+	if err != nil {
+		return nil, err
+	}
+
+	var latestMandatoryRelease *github.RepositoryRelease
+	var latestMandatoryReleaseVer *semver.Version
+
+	for _, release := range releases {
+		if strings.Contains(*release.Body, "mandatory") || strings.Contains(*release.Body, "MANDATORY") {
+			// parse the version string of the release
+			releaseVer, err := semver.ParseTolerant(*release.TagName)
+
+			if err != nil {
+				// skip the release if the version string is invalid
+				continue
+			}
+
+			// initialize the latest mandatory release version and release if they are nil
+			if latestMandatoryRelease == nil || latestMandatoryReleaseVer == nil {
+				latestMandatoryRelease = release
+				latestMandatoryReleaseVer = &releaseVer
+				continue
+			}
+
+			// check if the release version is greater than or equal to the current version
+			if curver != "" && releaseVer.GTE(semver.MustParse(curver)) && releaseVer.GT(*latestMandatoryReleaseVer) {
+				latestMandatoryRelease = release
+				latestMandatoryReleaseVer = &releaseVer
+			}
+		}
+	}
+
+	if latestMandatoryRelease == nil {
+		return nil, nil
+	}
+
+	return latestMandatoryRelease, nil
+}
+
+// FetchReleases fetches the list of all releases in the given repository.
+func FetchReleases() ([]*github.RepositoryRelease, error) {
+	client := github.NewClient(nil)
+	releases, _, err := client.Repositories.ListReleases(context.Background(),
+		"kubearmor",
+		"kubearmor-client",
+		&github.ListOptions{
+			Page:    1,
+			PerPage: 100,
+		},
+	)
+	if err != nil {
+		return nil, fmt.Errorf("error fetching releases from GitHub: %v", err)
+	}
+	return releases, nil
+}
+
 func getKubeArmorVersion(c *k8s.Client) (string, error) {
 	pods, err := c.K8sClientset.CoreV1().Pods("kube-system").List(context.Background(), metav1.ListOptions{LabelSelector: "kubearmor-app=kubearmor"})
 	if err != nil {