provisioning: makes the interval for polling for changes configurable

devenv/setup.sh

@@ -5,7 +5,7 @@ bulkDashboard() {
     requiresJsonnet
 
     COUNTER=0
-    MAX=4
+    MAX=400
     while [  $COUNTER -lt $MAX ]; do
         jsonnet -o "dashboards/bulk-testing/dashboard${COUNTER}.json" -e "local bulkDash = import 'dashboards/bulk-testing/bulkdash.jsonnet'; bulkDash + {  uid: 'uid-${COUNTER}',  title: 'title-${COUNTER}' }"
         let COUNTER=COUNTER+1

pkg/services/provisioning/dashboards/config_reader.go

@@ -81,6 +81,10 @@ func (cr *configReader) readConfig() ([]*DashboardsAsConfig, error) {
 		if dashboards[i].OrgId == 0 {
 			dashboards[i].OrgId = 1
 		}
+
+		if dashboards[i].IntervalSeconds == 0 {
+			dashboards[i].IntervalSeconds = 3
+		}
 	}
 
 	return dashboards, nil

pkg/services/provisioning/dashboards/config_reader_test.go

@@ -68,6 +68,7 @@ func validateDashboardAsConfig(cfg []*DashboardsAsConfig) {
 	So(len(ds.Options), ShouldEqual, 1)
 	So(ds.Options["path"], ShouldEqual, "/var/lib/grafana/dashboards")
 	So(ds.DisableDeletion, ShouldBeTrue)
+	So(ds.IntervalSeconds, ShouldEqual, 10)
 
 	ds2 := cfg[1]
 	So(ds2.Name, ShouldEqual, "default")
@@ -78,4 +79,5 @@ func validateDashboardAsConfig(cfg []*DashboardsAsConfig) {
 	So(len(ds2.Options), ShouldEqual, 1)
 	So(ds2.Options["path"], ShouldEqual, "/var/lib/grafana/dashboards")
 	So(ds2.DisableDeletion, ShouldBeFalse)
+	So(ds2.IntervalSeconds, ShouldEqual, 3)
 }

pkg/services/provisioning/dashboards/file_reader.go

@@ -21,8 +21,6 @@ import (
 )
 
 var (
-	checkDiskForChangesInterval = time.Second * 3
-
 	ErrFolderNameMissing = errors.New("Folder name missing")
 )
 
@@ -68,7 +66,7 @@ func (fr *fileReader) ReadAndListen(ctx context.Context) error {
 		fr.log.Error("failed to search for dashboards", "error", err)
 	}
 
-	ticker := time.NewTicker(checkDiskForChangesInterval)
+	ticker := time.NewTicker(time.Duration(int64(time.Second) * fr.Cfg.IntervalSeconds))
 
 	running := false
 

pkg/services/provisioning/dashboards/testdata/test-configs/dashboards-from-disk/dev-dashboards.yaml

@@ -6,6 +6,7 @@ providers:
   folder: 'developers'
   editable: true
   disableDeletion: true
+  intervalSeconds: 10
   type: file
   options:
     path: /var/lib/grafana/dashboards

pkg/services/provisioning/dashboards/testdata/test-configs/version-0/version-0.yaml

@@ -3,6 +3,7 @@
   folder: 'developers'
   editable: true
   disableDeletion: true
+  intervalSeconds: 10
   type: file
   options:
     path: /var/lib/grafana/dashboards

pkg/services/provisioning/dashboards/types.go

@@ -17,6 +17,7 @@ type DashboardsAsConfig struct {
 	Editable        bool
 	Options         map[string]interface{}
 	DisableDeletion bool
+	IntervalSeconds int64
 }
 
 type DashboardsAsConfigV0 struct {
@@ -27,6 +28,7 @@ type DashboardsAsConfigV0 struct {
 	Editable        bool                   `json:"editable" yaml:"editable"`
 	Options         map[string]interface{} `json:"options" yaml:"options"`
 	DisableDeletion bool                   `json:"disableDeletion" yaml:"disableDeletion"`
+	IntervalSeconds int64                  `json:"intervalSeconds" yaml:"intervalSeconds"`
 }
 
 type ConfigVersion struct {
@@ -45,6 +47,7 @@ type DashboardProviderConfigs struct {
 	Editable        bool                   `json:"editable" yaml:"editable"`
 	Options         map[string]interface{} `json:"options" yaml:"options"`
 	DisableDeletion bool                   `json:"disableDeletion" yaml:"disableDeletion"`
+	IntervalSeconds int64                  `json:"intervalSeconds" yaml:"intervalSeconds"`
 }
 
 func createDashboardJson(data *simplejson.Json, lastModified time.Time, cfg *DashboardsAsConfig, folderId int64) (*dashboards.SaveDashboardDTO, error) {
@@ -75,6 +78,7 @@ func mapV0ToDashboardAsConfig(v0 []*DashboardsAsConfigV0) []*DashboardsAsConfig
 			Editable:        v.Editable,
 			Options:         v.Options,
 			DisableDeletion: v.DisableDeletion,
+			IntervalSeconds: v.IntervalSeconds,
 		})
 	}
 
@@ -93,6 +97,7 @@ func (dc *DashboardAsConfigV1) mapToDashboardAsConfig() []*DashboardsAsConfig {
 			Editable:        v.Editable,
 			Options:         v.Options,
 			DisableDeletion: v.DisableDeletion,
+			IntervalSeconds: v.IntervalSeconds,
 		})
 	}