prometheus/web/alerts.go
Brian Brazil e041c0cd46 Add console and alert templates with access to all data.
Move rulemanager to it's own package to break cicrular dependency.
Make NewTestTieredStorage available to tests, remove duplication.

Change-Id: I33b321245a44aa727bfc3614a7c9ae5005b34e03
2014-05-30 16:24:56 +01:00

70 lines
1.7 KiB
Go

// Copyright 2013 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package web
import (
"net/http"
"sort"
"sync"
"github.com/prometheus/prometheus/rules"
"github.com/prometheus/prometheus/rules/manager"
)
type AlertStatus struct {
AlertingRules []*rules.AlertingRule
AlertStateToRowClass map[rules.AlertState]string
}
type AlertsHandler struct {
RuleManager manager.RuleManager
mutex sync.Mutex
}
type byAlertStateSorter struct {
alerts []*rules.AlertingRule
}
func (s byAlertStateSorter) Len() int {
return len(s.alerts)
}
func (s byAlertStateSorter) Less(i, j int) bool {
return s.alerts[i].State() > s.alerts[j].State()
}
func (s byAlertStateSorter) Swap(i, j int) {
s.alerts[i], s.alerts[j] = s.alerts[j], s.alerts[i]
}
func (h *AlertsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
h.mutex.Lock()
defer h.mutex.Unlock()
alerts := h.RuleManager.AlertingRules()
alertsSorter := byAlertStateSorter{alerts: alerts}
sort.Sort(alertsSorter)
alertStatus := AlertStatus{
AlertingRules: alertsSorter.alerts,
AlertStateToRowClass: map[rules.AlertState]string{
rules.INACTIVE: "success",
rules.PENDING: "warning",
rules.FIRING: "error",
},
}
executeTemplate(w, "alerts", alertStatus)
}