mirror of
https://github.com/prometheus/alertmanager
synced 2024-12-14 02:15:27 +00:00
124 lines
3.8 KiB
Go
124 lines
3.8 KiB
Go
// Copyright 2013 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"fmt"
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"time"
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"code.google.com/p/goprotobuf/proto"
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pb "github.com/prometheus/alertmanager/config/generated"
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"github.com/prometheus/alertmanager/manager"
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)
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const minimumRepeatRate = 1 * time.Minute
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// Config encapsulates the configuration of an Alert Manager instance. It wraps
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// the raw configuration protocol buffer to be able to add custom methods to
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// it.
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type Config struct {
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// The protobuf containing the actual configuration values.
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pb.AlertManagerConfig
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}
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// String returns an ASCII serialization of the loaded configuration protobuf.
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func (c Config) String() string {
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return proto.MarshalTextString(&c.AlertManagerConfig)
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}
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// Validate checks an entire parsed Config for the validity of its fields.
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func (c Config) Validate() error {
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ncNames := map[string]bool{}
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for _, nc := range c.NotificationConfig {
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if nc.Name == nil {
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return fmt.Errorf("Missing name in notification config: %s", proto.MarshalTextString(nc))
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}
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for _, pdc := range nc.PagerdutyConfig {
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if pdc.ServiceKey == nil {
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return fmt.Errorf("Missing service key in PagerDuty notification config: %s", proto.MarshalTextString(pdc))
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}
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}
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for _, ec := range nc.EmailConfig {
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if ec.Email == nil {
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return fmt.Errorf("Missing email address in email notification config: %s", proto.MarshalTextString(ec))
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}
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}
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if _, ok := ncNames[nc.GetName()]; ok {
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return fmt.Errorf("Notification config name not unique: %s", nc.GetName())
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}
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ncNames[nc.GetName()] = true
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}
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for _, a := range c.AggregationRule {
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for _, f := range a.Filter {
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if f.NameRe == nil {
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return fmt.Errorf("Missing name pattern (name_re) in filter definition: %s", proto.MarshalTextString(f))
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}
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if f.ValueRe == nil {
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return fmt.Errorf("Missing value pattern (value_re) in filter definition: %s", proto.MarshalTextString(f))
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}
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}
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if _, ok := ncNames[a.GetNotificationConfigName()]; !ok {
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return fmt.Errorf("No such notification config: %s", a.GetNotificationConfigName())
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}
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}
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return nil
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}
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func filtersFromPb(filters []*pb.Filter) manager.Filters {
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fs := make(manager.Filters, 0, len(filters))
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for _, f := range filters {
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fs = append(fs, manager.NewFilter(f.GetNameRe(), f.GetValueRe()))
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}
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return fs
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}
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// AggregationRules returns all the AggregationRules in a Config object.
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func (c Config) AggregationRules() manager.AggregationRules {
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rules := make(manager.AggregationRules, 0, len(c.AggregationRule))
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for _, r := range c.AggregationRule {
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rate := time.Duration(r.GetRepeatRateSeconds()) * time.Second
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if rate < minimumRepeatRate {
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rate = minimumRepeatRate
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}
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rules = append(rules, &manager.AggregationRule{
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Filters: filtersFromPb(r.Filter),
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RepeatRate: rate,
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NotificationConfigName: r.GetNotificationConfigName(),
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})
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}
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return rules
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}
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// InhibitRules returns all the InhibitRules in a Config object.
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func (c Config) InhibitRules() manager.InhibitRules {
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rules := make(manager.InhibitRules, 0, len(c.InhibitRule))
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for _, r := range c.InhibitRule {
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sFilters := filtersFromPb(r.SourceFilter)
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tFilters := filtersFromPb(r.TargetFilter)
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rules = append(rules, &manager.InhibitRule{
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SourceFilters: sFilters,
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TargetFilters: tFilters,
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MatchOn: r.MatchOn,
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})
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}
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return rules
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}
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