mirror of
https://github.com/prometheus/alertmanager
synced 2024-12-18 12:25:08 +00:00
16aa996c4f
* Add adapter package for parser feature flag This commit adds the compat package allowing users to switch between the new matchers/parse parser and the old pkg/labels parser. The new matchers/parse parser uses a fallback mechanism where if the input cannot be parsed in the new parser it then attempts to use the old parser. If an input is parsed in the old parser but not the new parser, then a warning log is emitted. --------- Signed-off-by: George Robinson <george.robinson@grafana.com>
114 lines
3.7 KiB
Go
114 lines
3.7 KiB
Go
// Copyright 2018 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 cli
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import (
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"context"
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"errors"
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"fmt"
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"net/url"
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"os"
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"github.com/alecthomas/kingpin/v2"
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"github.com/prometheus/common/model"
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"github.com/prometheus/alertmanager/api/v2/client/general"
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"github.com/prometheus/alertmanager/api/v2/models"
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"github.com/prometheus/alertmanager/config"
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"github.com/prometheus/alertmanager/pkg/labels"
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)
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// getRemoteAlertmanagerConfigStatus returns status responsecontaining configuration from remote Alertmanager
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func getRemoteAlertmanagerConfigStatus(ctx context.Context, alertmanagerURL *url.URL) (*models.AlertmanagerStatus, error) {
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amclient := NewAlertmanagerClient(alertmanagerURL)
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params := general.NewGetStatusParams().WithContext(ctx)
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getOk, err := amclient.General.GetStatus(params)
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if err != nil {
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return nil, err
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}
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return getOk.Payload, nil
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}
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func checkRoutingConfigInputFlags(alertmanagerURL *url.URL, configFile string) {
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if alertmanagerURL != nil && configFile != "" {
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fmt.Fprintln(os.Stderr, "Warning: --config.file flag overrides the --alertmanager.url.")
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}
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if alertmanagerURL == nil && configFile == "" {
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kingpin.Fatalf("You have to specify one of --config.file or --alertmanager.url flags.")
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}
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}
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func loadAlertmanagerConfig(ctx context.Context, alertmanagerURL *url.URL, configFile string) (*config.Config, error) {
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checkRoutingConfigInputFlags(alertmanagerURL, configFile)
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if configFile != "" {
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cfg, err := config.LoadFile(configFile)
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if err != nil {
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return nil, err
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}
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return cfg, nil
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}
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if alertmanagerURL == nil {
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return nil, errors.New("failed to get Alertmanager configuration")
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}
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configStatus, err := getRemoteAlertmanagerConfigStatus(ctx, alertmanagerURL)
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if err != nil {
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return nil, err
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}
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return config.Load(*configStatus.Config.Original)
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}
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// convertClientToCommonLabelSet converts client.LabelSet to model.Labelset
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func convertClientToCommonLabelSet(cls models.LabelSet) model.LabelSet {
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mls := make(model.LabelSet, len(cls))
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for ln, lv := range cls {
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mls[model.LabelName(ln)] = model.LabelValue(lv)
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}
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return mls
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}
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// TypeMatchers only valid for when you are going to add a silence
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func TypeMatchers(matchers []labels.Matcher) models.Matchers {
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typeMatchers := make(models.Matchers, len(matchers))
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for i, matcher := range matchers {
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typeMatchers[i] = TypeMatcher(matcher)
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}
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return typeMatchers
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}
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// TypeMatcher only valid for when you are going to add a silence
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func TypeMatcher(matcher labels.Matcher) *models.Matcher {
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name := matcher.Name
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value := matcher.Value
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typeMatcher := models.Matcher{
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Name: &name,
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Value: &value,
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}
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isEqual := (matcher.Type == labels.MatchEqual) || (matcher.Type == labels.MatchRegexp)
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isRegex := (matcher.Type == labels.MatchRegexp) || (matcher.Type == labels.MatchNotRegexp)
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typeMatcher.IsEqual = &isEqual
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typeMatcher.IsRegex = &isRegex
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return &typeMatcher
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}
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// Helper function for adding the ctx with timeout into an action.
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func execWithTimeout(fn func(context.Context, *kingpin.ParseContext) error) func(*kingpin.ParseContext) error {
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return func(x *kingpin.ParseContext) error {
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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return fn(ctx, x)
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}
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}
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