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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