|
| 1 | +package keda |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + |
| 8 | + "google.golang.org/grpc/codes" |
| 9 | + "google.golang.org/grpc/status" |
| 10 | + v1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 11 | + |
| 12 | + "github.com/fatih/color" |
| 13 | + "github.com/k8sgpt-ai/k8sgpt/pkg/common" |
| 14 | + "github.com/k8sgpt-ai/k8sgpt/pkg/kubernetes" |
| 15 | + "github.com/kedacore/keda/v2/pkg/generated/clientset/versioned/typed/keda/v1alpha1" |
| 16 | + helmclient "github.com/mittwald/go-helm-client" |
| 17 | + "github.com/spf13/viper" |
| 18 | + "helm.sh/helm/v3/pkg/repo" |
| 19 | +) |
| 20 | + |
| 21 | +var ( |
| 22 | + Repo = getEnv("KEDA_REPO", "https://kedacore.github.io/charts") |
| 23 | + Version = getEnv("KEDA_VERSION", "2.11.2") |
| 24 | + ChartName = getEnv("KEDA_CHART_NAME", "keda") |
| 25 | + RepoShortName = getEnv("KEDA_REPO_SHORT_NAME", "keda") |
| 26 | + ReleaseName = getEnv("KEDA_RELEASE_NAME", "keda-k8sgpt") |
| 27 | +) |
| 28 | + |
| 29 | +type Keda struct { |
| 30 | + helm helmclient.Client |
| 31 | +} |
| 32 | + |
| 33 | +func getEnv(key, defaultValue string) string { |
| 34 | + value := os.Getenv(key) |
| 35 | + if value == "" { |
| 36 | + return defaultValue |
| 37 | + } |
| 38 | + return value |
| 39 | +} |
| 40 | + |
| 41 | +func NewKeda() *Keda { |
| 42 | + helmClient, err := helmclient.New(&helmclient.Options{}) |
| 43 | + if err != nil { |
| 44 | + panic(err) |
| 45 | + } |
| 46 | + return &Keda{ |
| 47 | + helm: helmClient, |
| 48 | + } |
| 49 | +} |
| 50 | + |
| 51 | +func (k *Keda) Deploy(namespace string) error { |
| 52 | + // Add the repository |
| 53 | + chartRepo := repo.Entry{ |
| 54 | + Name: RepoShortName, |
| 55 | + URL: Repo, |
| 56 | + } |
| 57 | + // Add a chart-repository to the client. |
| 58 | + if err := k.helm.AddOrUpdateChartRepo(chartRepo); err != nil { |
| 59 | + panic(err) |
| 60 | + } |
| 61 | + |
| 62 | + chartSpec := helmclient.ChartSpec{ |
| 63 | + ReleaseName: ReleaseName, |
| 64 | + ChartName: fmt.Sprintf("%s/%s", RepoShortName, ChartName), |
| 65 | + Namespace: namespace, |
| 66 | + |
| 67 | + //TODO: All of this should be configurable |
| 68 | + UpgradeCRDs: true, |
| 69 | + Wait: false, |
| 70 | + Timeout: 300, |
| 71 | + CreateNamespace: true, |
| 72 | + } |
| 73 | + |
| 74 | + // Install a chart release. |
| 75 | + // Note that helmclient.Options.Namespace should ideally match the namespace in chartSpec.Namespace. |
| 76 | + if _, err := k.helm.InstallOrUpgradeChart(context.Background(), &chartSpec, nil); err != nil { |
| 77 | + return err |
| 78 | + } |
| 79 | + |
| 80 | + return nil |
| 81 | +} |
| 82 | + |
| 83 | +func (k *Keda) UnDeploy(namespace string) error { |
| 84 | + kubecontext := viper.GetString("kubecontext") |
| 85 | + kubeconfig := viper.GetString("kubeconfig") |
| 86 | + client, err := kubernetes.NewClient(kubecontext, kubeconfig) |
| 87 | + if err != nil { |
| 88 | + // TODO: better error handling |
| 89 | + color.Red("Error initialising kubernetes client: %v", err) |
| 90 | + os.Exit(1) |
| 91 | + } |
| 92 | + |
| 93 | + kedaNamespace, _ := k.GetNamespace() |
| 94 | + color.Blue(fmt.Sprintf("Keda namespace: %s\n", kedaNamespace)) |
| 95 | + |
| 96 | + kClient, _ := v1alpha1.NewForConfig(client.Config) |
| 97 | + |
| 98 | + scaledObjectList, _ := kClient.ScaledObjects("").List(context.Background(), v1.ListOptions{}) |
| 99 | + scaledJobList, _ := kClient.ScaledJobs("").List(context.Background(), v1.ListOptions{}) |
| 100 | + triggerAuthenticationList, _ := kClient.TriggerAuthentications("").List(context.Background(), v1.ListOptions{}) |
| 101 | + clusterTriggerAuthenticationsList, _ := kClient.ClusterTriggerAuthentications().List(context.Background(), v1.ListOptions{}) |
| 102 | + |
| 103 | + // Before uninstalling the Helm chart, we need to delete Keda resources |
| 104 | + for _, scaledObject := range scaledObjectList.Items { |
| 105 | + err := kClient.ScaledObjects(scaledObject.Namespace).Delete(context.Background(), scaledObject.Name, v1.DeleteOptions{}) |
| 106 | + if err != nil { |
| 107 | + fmt.Printf("Error deleting scaledObject %s: %v\n", scaledObject.Name, err) |
| 108 | + } else { |
| 109 | + fmt.Printf("Deleted scaledObject %s in namespace %s\n", scaledObject.Name, scaledObject.Namespace) |
| 110 | + } |
| 111 | + } |
| 112 | + |
| 113 | + for _, scaledJob := range scaledJobList.Items { |
| 114 | + err := kClient.ScaledJobs(scaledJob.Namespace).Delete(context.Background(), scaledJob.Name, v1.DeleteOptions{}) |
| 115 | + if err != nil { |
| 116 | + fmt.Printf("Error deleting scaledJob %s: %v\n", scaledJob.Name, err) |
| 117 | + } else { |
| 118 | + fmt.Printf("Deleted scaledJob %s in namespace %s\n", scaledJob.Name, scaledJob.Namespace) |
| 119 | + } |
| 120 | + } |
| 121 | + |
| 122 | + for _, triggerAuthentication := range triggerAuthenticationList.Items { |
| 123 | + err := kClient.TriggerAuthentications(triggerAuthentication.Namespace).Delete(context.Background(), triggerAuthentication.Name, v1.DeleteOptions{}) |
| 124 | + if err != nil { |
| 125 | + fmt.Printf("Error deleting triggerAuthentication %s: %v\n", triggerAuthentication.Name, err) |
| 126 | + } else { |
| 127 | + fmt.Printf("Deleted triggerAuthentication %s in namespace %s\n", triggerAuthentication.Name, triggerAuthentication.Namespace) |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + for _, clusterTriggerAuthentication := range clusterTriggerAuthenticationsList.Items { |
| 132 | + err := kClient.ClusterTriggerAuthentications().Delete(context.Background(), clusterTriggerAuthentication.Name, v1.DeleteOptions{}) |
| 133 | + if err != nil { |
| 134 | + fmt.Printf("Error deleting clusterTriggerAuthentication %s: %v\n", clusterTriggerAuthentication.Name, err) |
| 135 | + } else { |
| 136 | + fmt.Printf("Deleted clusterTriggerAuthentication %s\n", clusterTriggerAuthentication.Name) |
| 137 | + } |
| 138 | + } |
| 139 | + |
| 140 | + chartSpec := helmclient.ChartSpec{ |
| 141 | + ReleaseName: ReleaseName, |
| 142 | + ChartName: fmt.Sprintf("%s/%s", RepoShortName, ChartName), |
| 143 | + Namespace: namespace, |
| 144 | + UpgradeCRDs: true, |
| 145 | + Wait: false, |
| 146 | + Timeout: 300, |
| 147 | + } |
| 148 | + // Uninstall the chart release. |
| 149 | + // Note that helmclient.Options.Namespace should ideally match the namespace in chartSpec.Namespace. |
| 150 | + if err := k.helm.UninstallRelease(&chartSpec); err != nil { |
| 151 | + return err |
| 152 | + } |
| 153 | + return nil |
| 154 | +} |
| 155 | + |
| 156 | +func (k *Keda) AddAnalyzer(mergedMap *map[string]common.IAnalyzer) { |
| 157 | + (*mergedMap)["ScaledObject"] = &ScaledObjectAnalyzer{} |
| 158 | +} |
| 159 | + |
| 160 | +func (k *Keda) GetAnalyzerName() []string { |
| 161 | + return []string{ |
| 162 | + "ScaledObject", |
| 163 | + } |
| 164 | +} |
| 165 | + |
| 166 | +func (k *Keda) GetNamespace() (string, error) { |
| 167 | + releases, err := k.helm.ListDeployedReleases() |
| 168 | + if err != nil { |
| 169 | + return "", err |
| 170 | + } |
| 171 | + for _, rel := range releases { |
| 172 | + if rel.Name == ReleaseName { |
| 173 | + return rel.Namespace, nil |
| 174 | + } |
| 175 | + } |
| 176 | + return "", status.Error(codes.NotFound, "keda release not found") |
| 177 | +} |
| 178 | + |
| 179 | +func (k *Keda) OwnsAnalyzer(analyzer string) bool { |
| 180 | + for _, a := range k.GetAnalyzerName() { |
| 181 | + if analyzer == a { |
| 182 | + return true |
| 183 | + } |
| 184 | + } |
| 185 | + return false |
| 186 | +} |
| 187 | + |
| 188 | +func (k *Keda) isFilterActive() bool { |
| 189 | + activeFilters := viper.GetStringSlice("active_filters") |
| 190 | + |
| 191 | + for _, filter := range k.GetAnalyzerName() { |
| 192 | + for _, af := range activeFilters { |
| 193 | + if af == filter { |
| 194 | + return true |
| 195 | + } |
| 196 | + } |
| 197 | + } |
| 198 | + |
| 199 | + return false |
| 200 | +} |
| 201 | + |
| 202 | +func (k *Keda) isDeployed() bool { |
| 203 | + kubecontext := viper.GetString("kubecontext") |
| 204 | + kubeconfig := viper.GetString("kubeconfig") |
| 205 | + client, err := kubernetes.NewClient(kubecontext, kubeconfig) |
| 206 | + if err != nil { |
| 207 | + // TODO: better error handling |
| 208 | + color.Red("Error initialising kubernetes client: %v", err) |
| 209 | + os.Exit(1) |
| 210 | + } |
| 211 | + groups, _, err := client.Client.Discovery().ServerGroupsAndResources() |
| 212 | + if err != nil { |
| 213 | + // TODO: better error handling |
| 214 | + color.Red("Error initialising discovery client: %v", err) |
| 215 | + os.Exit(1) |
| 216 | + } |
| 217 | + |
| 218 | + for _, group := range groups { |
| 219 | + if group.Name == "keda.sh" { |
| 220 | + return true |
| 221 | + } |
| 222 | + } |
| 223 | + |
| 224 | + return false |
| 225 | +} |
| 226 | + |
| 227 | +func (k *Keda) IsActivate() bool { |
| 228 | + return k.isFilterActive() && k.isDeployed() |
| 229 | +} |
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