refactor code structure (#1738)

pkg/simple/client/monitoring/interface.go

@@ -0,0 +1,39 @@
+package monitoring
+
+
+type ClusterQuery struct {
+
+}
+
+type ClusterMetrics struct {
+
+}
+
+type WorkspaceQuery struct {
+
+}
+
+type WorkspaceMetrics struct {
+
+}
+
+type NamespaceQuery struct {
+
+}
+
+type NamespaceMetrics struct {
+
+}
+
+// Interface defines all the abstract behaviors of monitoring
+type Interface interface {
+
+    // Get
+    GetClusterMetrics(query ClusterQuery) ClusterMetrics
+
+    //
+    GetWorkspaceMetrics(query WorkspaceQuery) WorkspaceMetrics
+
+    //
+    GetNamespaceMetrics(query NamespaceQuery) NamespaceMetrics
+}

pkg/simple/client/monitoring/monitoring.go

@@ -1,4 +0,0 @@
-package monitoring
-
-type Interface interface {
-}

pkg/simple/client/monitoring/prometheus.go

@@ -0,0 +1,31 @@
+package monitoring
+
+import (
+    "net/http"
+    "time"
+)
+
+// prometheus implements monitoring interface backed by Prometheus
+type prometheus struct {
+    options *Options
+    client            *http.Client
+}
+
+func NewPrometheus(options *Options) Interface {
+    return &prometheus{
+        options:options,
+        client: &http.Client{ Timeout: 10 * time.Second },
+    }
+}
+
+func (p prometheus) GetClusterMetrics(query ClusterQuery) ClusterMetrics {
+    panic("implement me")
+}
+
+func (p prometheus) GetWorkspaceMetrics(query WorkspaceQuery) WorkspaceMetrics {
+    panic("implement me")
+}
+
+func (p prometheus) GetNamespaceMetrics(query NamespaceQuery) NamespaceMetrics {
+    panic("implement me")
+}

pkg/simple/client/monitoring/prometheus_options.go

@@ -0,0 +1,41 @@
+package monitoring
+
+import (
+    "github.com/spf13/pflag"
+)
+
+type Options struct {
+    Endpoint          string `json:"endpoint,omitempty" yaml:"endpoint"`
+    SecondaryEndpoint string `json:"secondaryEndpoint,omitempty" yaml:"secondaryEndpoint"`
+}
+
+func NewPrometheusOptions() *Options {
+    return &Options{
+        Endpoint:          "",
+        SecondaryEndpoint: "",
+    }
+}
+
+func (s *Options) Validate() []error {
+    var errs []error
+    return errs
+}
+
+func (s *Options) ApplyTo(options *Options) {
+    if s.Endpoint != "" {
+        options.Endpoint = s.Endpoint
+    }
+
+    if s.SecondaryEndpoint != "" {
+        options.SecondaryEndpoint = s.SecondaryEndpoint
+    }
+}
+
+func (s *Options) AddFlags(fs *pflag.FlagSet, c *Options) {
+    fs.StringVar(&s.Endpoint, "prometheus-endpoint", c.Endpoint, ""+
+        "Prometheus service endpoint which stores KubeSphere monitoring data, if left "+
+        "blank, will use builtin metrics-server as data source.")
+
+    fs.StringVar(&s.SecondaryEndpoint, "prometheus-secondary-endpoint", c.SecondaryEndpoint, ""+
+        "Prometheus secondary service endpoint, if left empty and endpoint is set, will use endpoint instead.")
+}

pkg/simple/client/monitoring/prometheus_test.go

@@ -0,0 +1 @@
+package monitoring