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Alerting: Move general alert rule validation from db-layer to model (#78325)

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Alerting: Move general alert rule validation to model
This commit is contained in:
Matthew Jacobson 2023-11-17 11:20:50 -05:00 committed by GitHub
parent f3b23611c5
commit 893839d27b
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 41 additions and 31 deletions
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37
pkg/services/ngalert/models/alert_rule.go
View File

@ -14,6 +14,7 @@ import (
alertingModels "github.com/grafana/alerting/models"
"github.com/grafana/grafana/pkg/services/quota"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/util/cmputil"
)
@ -423,6 +424,42 @@ func (alertRule *AlertRule) PreSave(timeNow func() time.Time) error {
return nil
}
// ValidateAlertRule validates various alert rule fields.
func (alertRule *AlertRule) ValidateAlertRule(cfg setting.UnifiedAlertingSettings) error {
if len(alertRule.Data) == 0 {
return fmt.Errorf("%w: no queries or expressions are found", ErrAlertRuleFailedValidation)
}
if alertRule.Title == "" {
return fmt.Errorf("%w: title is empty", ErrAlertRuleFailedValidation)
}
if err := ValidateRuleGroupInterval(alertRule.IntervalSeconds, int64(cfg.BaseInterval.Seconds())); err != nil {
return err
}
if alertRule.OrgID == 0 {
return fmt.Errorf("%w: no organisation is found", ErrAlertRuleFailedValidation)
}
if alertRule.DashboardUID == nil && alertRule.PanelID != nil {
return fmt.Errorf("%w: cannot have Panel ID without a Dashboard UID", ErrAlertRuleFailedValidation)
}
if _, err := ErrStateFromString(string(alertRule.ExecErrState)); err != nil {
return err
}
if _, err := NoDataStateFromString(string(alertRule.NoDataState)); err != nil {
return err
}
if alertRule.For < 0 {
return fmt.Errorf("%w: field `for` cannot be negative", ErrAlertRuleFailedValidation)
}
return nil
}
func (alertRule *AlertRule) ResourceType() string {
return "alertRule"
}

35
pkg/services/ngalert/store/alert_rule.go
View File

@ -633,48 +633,21 @@ var GenerateNewAlertRuleUID = func(sess *db.Session, orgID int64, ruleTitle stri
return "", ngmodels.ErrAlertRuleFailedGenerateUniqueUID
}
// validateAlertRule validates the alert rule interval and organisation.
// validateAlertRule validates the alert rule including db-level restrictions on field lengths.
func (st DBstore) validateAlertRule(alertRule ngmodels.AlertRule) error {
if len(alertRule.Data) == 0 {
return fmt.Errorf("%w: no queries or expressions are found", ngmodels.ErrAlertRuleFailedValidation)
}
if alertRule.Title == "" {
return fmt.Errorf("%w: title is empty", ngmodels.ErrAlertRuleFailedValidation)
}
if err := ngmodels.ValidateRuleGroupInterval(alertRule.IntervalSeconds, int64(st.Cfg.BaseInterval.Seconds())); err != nil {
if err := alertRule.ValidateAlertRule(st.Cfg); err != nil {
return err
}
// enfore max name length in SQLite
// enforce max name length.
if len(alertRule.Title) > AlertRuleMaxTitleLength {
return fmt.Errorf("%w: name length should not be greater than %d", ngmodels.ErrAlertRuleFailedValidation, AlertRuleMaxTitleLength)
}
// enfore max rule group name length in SQLite
// enforce max rule group name length.
if len(alertRule.RuleGroup) > AlertRuleMaxRuleGroupNameLength {
return fmt.Errorf("%w: rule group name length should not be greater than %d", ngmodels.ErrAlertRuleFailedValidation, AlertRuleMaxRuleGroupNameLength)
}
if alertRule.OrgID == 0 {
return fmt.Errorf("%w: no organisation is found", ngmodels.ErrAlertRuleFailedValidation)
}
if alertRule.DashboardUID == nil && alertRule.PanelID != nil {
return fmt.Errorf("%w: cannot have Panel ID without a Dashboard UID", ngmodels.ErrAlertRuleFailedValidation)
}
if _, err := ngmodels.ErrStateFromString(string(alertRule.ExecErrState)); err != nil {
return err
}
if _, err := ngmodels.NoDataStateFromString(string(alertRule.NoDataState)); err != nil {
return err
}
if alertRule.For < 0 {
return fmt.Errorf("%w: field `for` cannot be negative", ngmodels.ErrAlertRuleFailedValidation)
}
return nil
}