feat(dashboard): dashboard api [EE-7111] (#11843)

api/http/handler/kubernetes/dashboard.go

@@ -0,0 +1,37 @@
+package kubernetes
+
+import (
+	"net/http"
+
+	httperror "github.com/portainer/portainer/pkg/libhttp/error"
+	"github.com/portainer/portainer/pkg/libhttp/response"
+)
+
+// @id GetKubernetesDashboard
+// @summary Get the dashboard summary data
+// @description Get the dashboard summary data which is simply a count of a range of different commonly used kubernetes resources
+// @description **Access policy**: authenticated
+// @tags kubernetes
+// @security ApiKeyAuth
+// @security jwt
+// @accept json
+// @produce json
+// @param id path int true "Environment (Endpoint) identifier"
+// @success 200 {array} kubernetes.K8sDashboard "Success"
+// @failure 400 "Invalid request"
+// @failure 500 "Server error"
+// @router /kubernetes/{id}/dashboard [get]
+func (handler *Handler) getKubernetesDashboard(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
+
+	cli, httpErr := handler.getProxyKubeClient(r)
+	if httpErr != nil {
+		return httpErr
+	}
+
+	dashboard, err := cli.GetDashboard()
+	if err != nil {
+		return httperror.InternalServerError("Unable to retrieve dashboard data", err)
+	}
+
+	return response.JSON(w, dashboard)
+}