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rules_types.go
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rules_types.go
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package alerting
import (
"encoding/json"
"errors"
"fmt"
"strings"
"time"
"github.com/prometheus/common/model"
"github.com/grafana/grafana/pkg/services/ngalert/models"
"github.com/grafana/grafana/pkg/services/provisioning/values"
"github.com/grafana/grafana/pkg/util"
)
type RuleDelete struct {
UID string
OrgID int64
}
type RuleDeleteV1 struct {
UID values.StringValue `json:"uid" yaml:"uid"`
OrgID values.Int64Value `json:"orgId" yaml:"orgId"`
}
type AlertRuleGroupV1 struct {
OrgID values.Int64Value `json:"orgId" yaml:"orgId"`
Name values.StringValue `json:"name" yaml:"name"`
Folder values.StringValue `json:"folder" yaml:"folder"`
Interval values.StringValue `json:"interval" yaml:"interval"`
Rules []AlertRuleV1 `json:"rules" yaml:"rules"`
}
func (ruleGroupV1 *AlertRuleGroupV1) MapToModel() (models.AlertRuleGroupWithFolderTitle, error) {
ruleGroup := models.AlertRuleGroupWithFolderTitle{AlertRuleGroup: &models.AlertRuleGroup{}}
ruleGroup.Title = ruleGroupV1.Name.Value()
if strings.TrimSpace(ruleGroup.Title) == "" {
return models.AlertRuleGroupWithFolderTitle{}, errors.New("rule group has no name set")
}
ruleGroup.OrgID = ruleGroupV1.OrgID.Value()
if ruleGroup.OrgID < 1 {
ruleGroup.OrgID = 1
}
interval, err := model.ParseDuration(ruleGroupV1.Interval.Value())
if err != nil {
return models.AlertRuleGroupWithFolderTitle{}, err
}
ruleGroup.Interval = int64(time.Duration(interval).Seconds())
ruleGroup.FolderTitle = ruleGroupV1.Folder.Value()
if strings.TrimSpace(ruleGroup.FolderTitle) == "" {
return models.AlertRuleGroupWithFolderTitle{}, errors.New("rule group has no folder set")
}
for _, ruleV1 := range ruleGroupV1.Rules {
rule, err := ruleV1.mapToModel(ruleGroup.OrgID)
if err != nil {
return models.AlertRuleGroupWithFolderTitle{}, err
}
ruleGroup.Rules = append(ruleGroup.Rules, rule)
}
return ruleGroup, nil
}
type AlertRuleV1 struct {
UID values.StringValue `json:"uid" yaml:"uid"`
Title values.StringValue `json:"title" yaml:"title"`
Condition values.StringValue `json:"condition" yaml:"condition"`
Data []QueryV1 `json:"data" yaml:"data"`
DashboardUID values.StringValue `json:"dasboardUid" yaml:"dashboardUid"`
PanelID values.Int64Value `json:"panelId" yaml:"panelId"`
NoDataState values.StringValue `json:"noDataState" yaml:"noDataState"`
ExecErrState values.StringValue `json:"execErrState" yaml:"execErrState"`
For values.StringValue `json:"for" yaml:"for"`
Annotations values.StringMapValue `json:"annotations" yaml:"annotations"`
Labels values.StringMapValue `json:"labels" yaml:"labels"`
IsPaused values.BoolValue `json:"isPaused" yaml:"isPaused"`
NotificationSettings *NotificationSettingsV1 `json:"notification_settings" yaml:"notification_settings"`
}
func (rule *AlertRuleV1) mapToModel(orgID int64) (models.AlertRule, error) {
alertRule := models.AlertRule{}
alertRule.Title = rule.Title.Value()
if alertRule.Title == "" {
return models.AlertRule{}, fmt.Errorf("rule has no title set")
}
alertRule.UID = rule.UID.Value()
if alertRule.UID == "" {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: no UID set", alertRule.Title)
}
alertRule.OrgID = orgID
duration, err := model.ParseDuration(rule.For.Value())
if err != nil {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: %w", alertRule.Title, err)
}
alertRule.For = time.Duration(duration)
dashboardUID := rule.DashboardUID.Value()
alertRule.DashboardUID = &dashboardUID
panelID := rule.PanelID.Value()
alertRule.PanelID = &panelID
execErrStateValue := strings.TrimSpace(rule.ExecErrState.Value())
execErrState, err := models.ErrStateFromString(execErrStateValue)
if err != nil && execErrStateValue != "" {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: %w", alertRule.Title, err)
}
if execErrStateValue == "" {
execErrState = models.AlertingErrState
}
alertRule.ExecErrState = execErrState
noDataStateValue := strings.TrimSpace(rule.NoDataState.Value())
noDataState, err := models.NoDataStateFromString(noDataStateValue)
if err != nil && noDataStateValue != "" {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: %w", alertRule.Title, err)
}
if noDataStateValue == "" {
noDataState = models.NoData
}
alertRule.NoDataState = noDataState
alertRule.Condition = rule.Condition.Value()
if alertRule.Condition == "" {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: no condition set", alertRule.Title)
}
alertRule.Annotations = rule.Annotations.Raw
alertRule.Labels = rule.Labels.Value()
for _, queryV1 := range rule.Data {
query, err := queryV1.mapToModel()
if err != nil {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: %w", alertRule.Title, err)
}
alertRule.Data = append(alertRule.Data, query)
}
if len(alertRule.Data) == 0 {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: no data set", alertRule.Title)
}
alertRule.IsPaused = rule.IsPaused.Value()
if rule.NotificationSettings != nil {
ns, err := rule.NotificationSettings.mapToModel()
if err != nil {
return models.AlertRule{}, fmt.Errorf("rule '%s' failed to parse: %w", alertRule.Title, err)
}
alertRule.NotificationSettings = append(alertRule.NotificationSettings, ns)
}
return alertRule, nil
}
type QueryV1 struct {
RefID values.StringValue `json:"refId" yaml:"refId"`
QueryType values.StringValue `json:"queryType" yaml:"queryType"`
RelativeTimeRange models.RelativeTimeRange `json:"relativeTimeRange" yaml:"relativeTimeRange"`
DatasourceUID values.StringValue `json:"datasourceUid" yaml:"datasourceUid"`
Model values.JSONValue `json:"model" yaml:"model"`
}
func (queryV1 *QueryV1) mapToModel() (models.AlertQuery, error) {
// In order to get the model into the format we need,
// we marshal it back to json and unmarshal it again
// in json.RawMessage. We do this as we cannot use
// json.RawMessage with a yaml files and have to use
// JSONValue that supports both, json and yaml.
//
// We have to use the Raw field here, as Value would
// try to interpolate macros like `$__timeFilter`, resulting
// in missing macros in the SQL queries as they would be
// replaced by an empty string.
encoded, err := json.Marshal(queryV1.Model.Raw)
if err != nil {
return models.AlertQuery{}, err
}
var rawMessage json.RawMessage
err = json.Unmarshal(encoded, &rawMessage)
if err != nil {
return models.AlertQuery{}, err
}
return models.AlertQuery{
RefID: queryV1.RefID.Value(),
QueryType: queryV1.QueryType.Value(),
DatasourceUID: queryV1.DatasourceUID.Value(),
RelativeTimeRange: queryV1.RelativeTimeRange,
Model: rawMessage,
}, nil
}
type NotificationSettingsV1 struct {
Receiver values.StringValue `json:"receiver" yaml:"receiver"`
GroupBy []values.StringValue `json:"group_by,omitempty" yaml:"group_by"`
GroupWait values.StringValue `json:"group_wait,omitempty" yaml:"group_wait"`
GroupInterval values.StringValue `json:"group_interval,omitempty" yaml:"group_interval"`
RepeatInterval values.StringValue `json:"repeat_interval,omitempty" yaml:"repeat_interval"`
MuteTimeIntervals []values.StringValue `json:"mute_time_intervals,omitempty" yaml:"mute_time_intervals"`
}
func (nsV1 *NotificationSettingsV1) mapToModel() (models.NotificationSettings, error) {
if nsV1.Receiver.Value() == "" {
return models.NotificationSettings{}, fmt.Errorf("receiver must not be empty")
}
var gw, gi, ri *model.Duration
if nsV1.GroupWait.Value() != "" {
dur, err := model.ParseDuration(nsV1.GroupWait.Value())
if err != nil {
return models.NotificationSettings{}, fmt.Errorf("failed to parse group wait: %w", err)
}
gw = util.Pointer(dur)
}
if nsV1.GroupInterval.Value() != "" {
dur, err := model.ParseDuration(nsV1.GroupInterval.Value())
if err != nil {
return models.NotificationSettings{}, fmt.Errorf("failed to parse group interval: %w", err)
}
gi = util.Pointer(dur)
}
if nsV1.RepeatInterval.Value() != "" {
dur, err := model.ParseDuration(nsV1.RepeatInterval.Value())
if err != nil {
return models.NotificationSettings{}, fmt.Errorf("failed to parse repeat interval: %w", err)
}
ri = util.Pointer(dur)
}
var groupBy []string
if len(nsV1.GroupBy) > 0 {
groupBy = make([]string, 0, len(nsV1.GroupBy))
for _, value := range nsV1.GroupBy {
if value.Value() == "" {
continue
}
groupBy = append(groupBy, value.Value())
}
}
var mute []string
if len(nsV1.MuteTimeIntervals) > 0 {
mute = make([]string, 0, len(nsV1.MuteTimeIntervals))
for _, value := range nsV1.MuteTimeIntervals {
if value.Value() == "" {
continue
}
mute = append(mute, value.Value())
}
}
return models.NotificationSettings{
Receiver: nsV1.Receiver.Value(),
GroupBy: groupBy,
GroupWait: gw,
GroupInterval: gi,
RepeatInterval: ri,
MuteTimeIntervals: mute,
}, nil
}