155 lines
3.8 KiB
Go
155 lines
3.8 KiB
Go
package servicemesh
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import (
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"strings"
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apiv1alpha3 "istio.io/api/networking/v1alpha3"
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"istio.io/client-go/pkg/apis/networking/v1alpha3"
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corev1 "k8s.io/api/core/v1"
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v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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const (
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AppLabel = "app"
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VersionLabel = "version"
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ApplicationNameLabel = "app.kubernetes.io/name"
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ApplicationVersionLabel = "app.kubernetes.io/version"
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ServiceMeshEnabledAnnotation = "servicemesh.kubesphere.io/enabled"
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)
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// resource with these following labels considered as part of servicemesh
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var ApplicationLabels = [...]string{
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ApplicationNameLabel,
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ApplicationVersionLabel,
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AppLabel,
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}
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// resource with these following labels considered as part of kubernetes-sigs/application
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var AppLabels = [...]string{
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ApplicationNameLabel,
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ApplicationVersionLabel,
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}
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var TrimChars = [...]string{".", "_", "-"}
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// normalize version names
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// strip [_.-]
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func NormalizeVersionName(version string) string {
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for _, char := range TrimChars {
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version = strings.ReplaceAll(version, char, "")
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}
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return version
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}
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func GetApplictionName(lbs map[string]string) string {
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if name, ok := lbs[ApplicationNameLabel]; ok {
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return name
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}
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return ""
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}
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func GetComponentName(meta *v1.ObjectMeta) string {
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if len(meta.Labels[AppLabel]) > 0 {
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return meta.Labels[AppLabel]
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}
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return ""
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}
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func IsServicemeshEnabled(annotations map[string]string) bool {
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if enabled, ok := annotations[ServiceMeshEnabledAnnotation]; ok {
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if enabled == "true" {
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return true
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}
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}
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return false
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}
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func GetComponentVersion(meta *v1.ObjectMeta) string {
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if len(meta.Labels[VersionLabel]) > 0 {
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return meta.Labels[VersionLabel]
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}
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return ""
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}
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func ExtractApplicationLabels(meta *v1.ObjectMeta) map[string]string {
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labels := make(map[string]string, len(ApplicationLabels))
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for _, label := range ApplicationLabels {
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if _, ok := meta.Labels[label]; !ok {
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return nil
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} else {
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labels[label] = meta.Labels[label]
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}
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}
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return labels
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}
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func IsApplicationComponent(lbs map[string]string) bool {
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for _, label := range ApplicationLabels {
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if _, ok := lbs[label]; !ok {
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return false
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}
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}
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return true
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}
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// Whether it belongs to kubernetes-sigs/application or not
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func IsAppComponent(lbs map[string]string) bool {
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for _, label := range AppLabels {
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if _, ok := lbs[label]; !ok {
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return false
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}
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}
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return true
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}
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// if virtualservice not specified with port number, then fill with service first port
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func FillDestinationPort(vs *v1alpha3.VirtualService, service *corev1.Service) {
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// fill http port
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for i := range vs.Spec.Http {
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for j := range vs.Spec.Http[i].Route {
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port := vs.Spec.Http[i].Route[j].Destination.Port
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if port == nil || port.Number == 0 {
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vs.Spec.Http[i].Route[j].Destination.Port = &apiv1alpha3.PortSelector{
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Number: uint32(service.Spec.Ports[0].Port),
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}
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vs.Spec.Http[i].Match[j].Port = uint32(service.Spec.Ports[0].Port)
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}
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}
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if vs.Spec.Http[i].Mirror != nil && (vs.Spec.Http[i].Mirror.Port == nil || vs.Spec.Http[i].Mirror.Port.Number == 0) {
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vs.Spec.Http[i].Mirror.Port = &apiv1alpha3.PortSelector{
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Number: uint32(service.Spec.Ports[0].Port),
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}
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}
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}
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// fill tcp port
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for i := range vs.Spec.Tcp {
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for j := range vs.Spec.Tcp[i].Route {
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if vs.Spec.Tcp[i].Route[j].Destination.Port == nil || vs.Spec.Tcp[i].Route[j].Destination.Port.Number == 0 {
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vs.Spec.Tcp[i].Route[j].Destination.Port = &apiv1alpha3.PortSelector{
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Number: uint32(service.Spec.Ports[0].Port),
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}
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vs.Spec.Tcp[i].Match[j].Port = uint32(service.Spec.Ports[0].Port)
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}
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}
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}
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}
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func SupportHttpProtocol(protocol string) bool {
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httpPro := []string{"http", "http2", "grpc"}
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for _, i := range httpPro {
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if strings.ToLower(protocol) == i || strings.HasPrefix(strings.ToLower(protocol), i+"-") {
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return true
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}
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}
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return false
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}
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