110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
// Copyright 2019 VEXXHOST, Inc.
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//
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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 collectors
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import (
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"fmt"
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"github.com/libvirt/libvirt-go"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/log"
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)
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type VersionCollector struct {
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prometheus.Collector
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Connection *libvirt.Connect
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Version *prometheus.Desc
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}
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func NewVersionCollector(connection *libvirt.Connect) (*VersionCollector, error) {
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return &VersionCollector{
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Connection: connection,
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Version: prometheus.NewDesc(
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"libvirtd_info",
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"Version details for LibvirtD",
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[]string{"driver", "driver_version", "version"}, nil,
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),
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}, nil
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}
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func (c *VersionCollector) Describe(ch chan<- *prometheus.Desc) {
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ch <- c.Version
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}
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func (c *VersionCollector) Collect(ch chan<- prometheus.Metric) {
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alive, err := c.Connection.IsAlive()
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if err != nil {
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log.Errorln(err)
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return
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}
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if !alive {
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uri, err := c.Connection.GetURI()
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if err != nil {
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// NOTE(mnaser): If we get to this point, we don't have
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// a URI and we can't reconnect, die
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log.Fatalln(err)
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return
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}
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c.Connection.Close()
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conn, err := libvirt.NewConnect(uri)
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if err != nil {
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log.Errorln(err)
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return
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}
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c.Connection = conn
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}
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hypervisorType, err := c.Connection.GetType()
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if err != nil {
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log.Errorln(err)
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return
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}
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hypervisorVersion, err := c.Connection.GetVersion()
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if err != nil {
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log.Errorln(err)
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return
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}
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libvirtVersion, err := c.Connection.GetLibVersion()
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if err != nil {
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log.Errorln(err)
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return
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}
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ch <- prometheus.MustNewConstMetric(
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c.Version,
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prometheus.CounterValue,
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float64(1),
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hypervisorType,
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versionToString(hypervisorVersion),
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versionToString(libvirtVersion),
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)
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}
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func versionToString(version uint32) string {
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major := version / 1000000
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minor := (version - (major * 1000000)) / 1000
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release := version - (major * 1000000) - (minor * 1000)
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return fmt.Sprintf("%d.%d.%d", major, minor, release)
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}
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