forked from cilium/cilium
/
status.go
167 lines (143 loc) · 4.31 KB
/
status.go
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// Copyright 2018 Authors of Cilium
//
// 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 metrics
import (
"time"
clientPkg "github.com/cilium/cilium/pkg/client"
healthClientPkg "github.com/cilium/cilium/pkg/health/client"
"github.com/prometheus/client_golang/prometheus"
log "github.com/sirupsen/logrus"
)
const (
updateLatencyMetricsInterval = 30 * time.Second
)
type statusCollector struct {
ciliumClient *clientPkg.Client
healthClient *healthClientPkg.Client
controllersFailingDesc *prometheus.Desc
ipAddressesDesc *prometheus.Desc
unreachableNodesDesc *prometheus.Desc
unreachableHealthEndpointsDesc *prometheus.Desc
}
func newStatusCollector() *statusCollector {
ciliumClient, err := clientPkg.NewClient("")
if err != nil {
log.WithError(err).Fatal("Error while creating Cilium API client")
}
healthClient, err := healthClientPkg.NewClient("")
if err != nil {
log.WithError(err).Fatal("Error while creating cilium-health API client")
}
return &statusCollector{
ciliumClient: ciliumClient,
healthClient: healthClient,
controllersFailingDesc: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, "", "controllers_failing"),
"Number of failing controllers",
nil, nil,
),
ipAddressesDesc: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, "", "ip_addresses"),
"Number of allocated IP addresses",
[]string{"family"}, nil,
),
unreachableNodesDesc: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, "", "unreachable_nodes"),
"Number of nodes that cannot be reached",
nil, nil,
),
unreachableHealthEndpointsDesc: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, "", "unreachable_health_endpoints"),
"Number of health endpoints that cannot be reached",
nil, nil,
),
}
}
func (s *statusCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- s.controllersFailingDesc
ch <- s.ipAddressesDesc
ch <- s.unreachableNodesDesc
ch <- s.unreachableHealthEndpointsDesc
}
func (s *statusCollector) Collect(ch chan<- prometheus.Metric) {
statusResponse, err := s.ciliumClient.Daemon.GetHealthz(nil)
if err != nil {
log.WithError(err).Error("Error while getting Cilium status")
return
}
if statusResponse.Payload == nil {
return
}
// Controllers failing
controllersFailing := 0
for _, ctrl := range statusResponse.Payload.Controllers {
if ctrl.Status == nil {
continue
}
if ctrl.Status.ConsecutiveFailureCount > 0 {
controllersFailing++
}
}
ch <- prometheus.MustNewConstMetric(
s.controllersFailingDesc,
prometheus.GaugeValue,
float64(controllersFailing),
)
if statusResponse.Payload.IPAM != nil {
// Address count
ch <- prometheus.MustNewConstMetric(
s.ipAddressesDesc,
prometheus.GaugeValue,
float64(len(statusResponse.Payload.IPAM.IPV4)),
"ipv4",
)
ch <- prometheus.MustNewConstMetric(
s.ipAddressesDesc,
prometheus.GaugeValue,
float64(len(statusResponse.Payload.IPAM.IPV6)),
"ipv6",
)
}
healthStatusResponse, err := s.healthClient.Connectivity.GetStatus(nil)
if err != nil {
log.WithError(err).Error("Error while getting cilium-health status")
return
}
if healthStatusResponse.Payload == nil {
return
}
// Nodes and endpoints healthStatusResponse
var (
unreachableNodes int
unreachableEndpoints int
)
for _, nodeStatus := range healthStatusResponse.Payload.Nodes {
if !healthClientPkg.PathIsHealthy(healthClientPkg.GetHostPrimaryAddress(nodeStatus)) {
unreachableNodes++
}
if nodeStatus.Endpoint != nil && !healthClientPkg.PathIsHealthy(nodeStatus.Endpoint) {
unreachableEndpoints++
}
}
ch <- prometheus.MustNewConstMetric(
s.unreachableNodesDesc,
prometheus.GaugeValue,
float64(unreachableNodes),
)
ch <- prometheus.MustNewConstMetric(
s.unreachableHealthEndpointsDesc,
prometheus.GaugeValue,
float64(unreachableEndpoints),
)
}