feat(system): path to upgrade standalone to BE [EE-4071] (#8095)

api/http/handler/system/system_info.go

@@ -0,0 +1,65 @@
+package system
+
+import (
+	"net/http"
+
+	httperror "github.com/portainer/libhttp/error"
+	"github.com/portainer/libhttp/response"
+	"github.com/portainer/portainer/api/internal/endpointutils"
+	"github.com/portainer/portainer/api/platform"
+	plf "github.com/portainer/portainer/api/platform"
+)
+
+type systemInfoResponse struct {
+	Platform    platform.ContainerPlatform `json:"platform"`
+	EdgeAgents  int                        `json:"edgeAgents"`
+	EdgeDevices int                        `json:"edgeDevices"`
+	Agents      int                        `json:"agents"`
+}
+
+// @id systemInfo
+// @summary Retrieve system info
+// @description **Access policy**: authenticated
+// @security ApiKeyAuth
+// @security jwt
+// @tags system
+// @produce json
+// @success 200 {object} systemInfoResponse "Success"
+// @failure 500 "Server error"
+// @router /system/info [get]
+func (handler *Handler) systemInfo(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
+	environments, err := handler.dataStore.Endpoint().Endpoints()
+	if err != nil {
+		return httperror.InternalServerError("Failed to get environment list", err)
+	}
+
+	agents := 0
+	edgeAgents := 0
+	edgeDevices := 0
+
+	for _, environment := range environments {
+		if endpointutils.IsAgentEndpoint(&environment) {
+			agents++
+		}
+
+		if endpointutils.IsEdgeEndpoint(&environment) {
+			edgeAgents++
+		}
+
+		if environment.IsEdgeDevice {
+			edgeDevices++
+		}
+	}
+
+	platform, err := plf.DetermineContainerPlatform()
+	if err != nil {
+		return httperror.InternalServerError("Unable to determine container platform", err)
+	}
+
+	return response.JSON(w, &systemInfoResponse{
+		EdgeAgents:  edgeAgents,
+		EdgeDevices: edgeDevices,
+		Agents:      agents,
+		Platform:    platform,
+	})
+}