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feat: add metrics-adapter component to support centralized hpa
Signed-off-by: jwcesign <jiangwei115@huawei.com>
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jwcesign
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May 26, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| apiVersion: apiregistration.k8s.io/v1 | ||
| kind: APIService | ||
| metadata: | ||
| name: v1beta1.metrics.k8s.io | ||
| labels: | ||
| app: karmada-metrics-adapter | ||
| apiserver: "true" | ||
| spec: | ||
| insecureSkipTLSVerify: true | ||
| group: metrics.k8s.io | ||
| groupPriorityMinimum: 2000 | ||
| service: | ||
| name: karmada-metrics-adapter | ||
| namespace: karmada-system | ||
| version: v1beta1 | ||
| versionPriority: 10 | ||
| --- | ||
| apiVersion: v1 | ||
| kind: Service | ||
| metadata: | ||
| name: karmada-metrics-adapter | ||
| namespace: karmada-system | ||
| spec: | ||
| type: ExternalName | ||
| externalName: karmada-metrics-adapter.karmada-system.svc.cluster.local |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| --- | ||
| apiVersion: apps/v1 | ||
| kind: Deployment | ||
| metadata: | ||
| name: karmada-metrics-adapter | ||
| namespace: karmada-system | ||
| labels: | ||
| app: karmada-metrics-adapter | ||
| apiserver: "true" | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| app: karmada-metrics-adapter | ||
| apiserver: "true" | ||
| replicas: 1 | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: karmada-metrics-adapter | ||
| apiserver: "true" | ||
| spec: | ||
| automountServiceAccountToken: false | ||
| containers: | ||
| - name: karmada-metrics-adapter | ||
| image: docker.io/karmada/karmada-metrics-adapter:latest | ||
| imagePullPolicy: IfNotPresent | ||
| volumeMounts: | ||
| - name: karmada-certs | ||
| mountPath: /etc/karmada/pki | ||
| readOnly: true | ||
| - name: kubeconfig | ||
| subPath: kubeconfig | ||
| mountPath: /etc/kubeconfig | ||
| command: | ||
| - /bin/karmada-metrics-adapter | ||
| - --kubeconfig=/etc/kubeconfig | ||
| - --authentication-kubeconfig=/etc/kubeconfig | ||
| - --authorization-kubeconfig=/etc/kubeconfig | ||
| - --client-ca-file=/etc/karmada/pki/ca.crt | ||
| - --audit-log-path=- | ||
| - --audit-log-maxage=0 | ||
| - --audit-log-maxbackup=0 | ||
| readinessProbe: | ||
| httpGet: | ||
| path: /readyz | ||
| port: 443 | ||
| scheme: HTTPS | ||
| initialDelaySeconds: 1 | ||
| failureThreshold: 3 | ||
| periodSeconds: 3 | ||
| timeoutSeconds: 15 | ||
| livenessProbe: | ||
| httpGet: | ||
| path: /healthz | ||
| port: 443 | ||
| scheme: HTTPS | ||
| initialDelaySeconds: 10 | ||
| failureThreshold: 3 | ||
| periodSeconds: 10 | ||
| timeoutSeconds: 15 | ||
| resources: | ||
| requests: | ||
| cpu: 100m | ||
| volumes: | ||
| - name: karmada-certs | ||
| secret: | ||
| secretName: karmada-cert-secret | ||
| - name: kubeconfig | ||
| secret: | ||
| secretName: kubeconfig | ||
| --- | ||
| apiVersion: v1 | ||
| kind: Service | ||
| metadata: | ||
| name: karmada-metrics-adapter | ||
| namespace: karmada-system | ||
| labels: | ||
| app: karmada-metrics-adapter | ||
| apiserver: "true" | ||
| spec: | ||
| ports: | ||
| - port: 443 | ||
| protocol: TCP | ||
| targetPort: 443 | ||
| selector: | ||
| app: karmada-metrics-adapter |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package app | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| "github.com/spf13/cobra" | ||
| cliflag "k8s.io/component-base/cli/flag" | ||
| "k8s.io/component-base/term" | ||
|
|
||
| "github.com/karmada-io/karmada/cmd/metrics-adapter/app/options" | ||
| "github.com/karmada-io/karmada/pkg/sharedcli" | ||
| "github.com/karmada-io/karmada/pkg/sharedcli/klogflag" | ||
| "github.com/karmada-io/karmada/pkg/version/sharedcommand" | ||
| ) | ||
|
|
||
| // NewMetricsAdapterCommand creates a *cobra.Command object with default parameters | ||
| func NewMetricsAdapterCommand(ctx context.Context) *cobra.Command { | ||
| opts := options.NewOptions() | ||
|
|
||
| cmd := &cobra.Command{ | ||
| Use: "karmada-metrics-adapter", | ||
| Long: `The karmada-metrics-adapter is a adapter to aggregate the metrics from member clusters.`, | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| if err := opts.Complete(); err != nil { | ||
| return err | ||
| } | ||
| if err := opts.Validate(); err != nil { | ||
| return err | ||
| } | ||
| if err := opts.Run(ctx); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }, | ||
| Args: func(cmd *cobra.Command, args []string) error { | ||
| for _, arg := range args { | ||
| if len(arg) > 0 { | ||
| return fmt.Errorf("%q does not take any arguments, got %q", cmd.CommandPath(), args) | ||
| } | ||
| } | ||
| return nil | ||
| }, | ||
| } | ||
|
|
||
| fss := cliflag.NamedFlagSets{} | ||
|
|
||
| genericFlagSet := fss.FlagSet("generic") | ||
| opts.AddFlags(genericFlagSet) | ||
|
|
||
| // Set klog flags | ||
| logsFlagSet := fss.FlagSet("logs") | ||
| klogflag.Add(logsFlagSet) | ||
|
|
||
| cmd.AddCommand(sharedcommand.NewCmdVersion("karmada-metrics-adapter")) | ||
| cmd.Flags().AddFlagSet(genericFlagSet) | ||
| cmd.Flags().AddFlagSet(logsFlagSet) | ||
|
|
||
| cols, _, _ := term.TerminalSize(cmd.OutOrStdout()) | ||
| sharedcli.SetUsageAndHelpFunc(cmd, fss, cols) | ||
| return cmd | ||
| } |
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