138 lines
3.3 KiB
Go
138 lines
3.3 KiB
Go
/*
|
|
** Copyright 2022 Dolysis Consulting Limited
|
|
**
|
|
** 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.
|
|
**
|
|
** For changes see the git log
|
|
*/
|
|
package pkg
|
|
|
|
import (
|
|
"net/url"
|
|
"strconv"
|
|
"time"
|
|
|
|
ipp "git.st8l.com/dolysis/go-ipp"
|
|
"github.com/go-logr/logr"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
const (
|
|
namespace = "cups"
|
|
)
|
|
|
|
func NewExporter(cupsUri string, log logr.Logger) (*Exporter, error) {
|
|
cu, err := url.Parse(cupsUri)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
port, err := strconv.Atoi(cu.Port())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
password, _ := cu.User.Password()
|
|
|
|
client := ipp.NewCUPSClient(cu.Hostname(), port, cu.User.Username(), password, cu.Scheme == "https")
|
|
|
|
return &Exporter{
|
|
log: log,
|
|
client: client,
|
|
|
|
lastJobId: 0,
|
|
lastCompletedJobId: 0,
|
|
|
|
cupsUp: prometheus.NewDesc(
|
|
"cups_up",
|
|
"Was the last scrape of cups successful",
|
|
nil,
|
|
nil,
|
|
),
|
|
scrapeDurationSeconds: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "", "scrape_duration_seconds"),
|
|
"Duration of the last scrape in seconds",
|
|
nil,
|
|
nil,
|
|
),
|
|
jobsTotal: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "job", "total"),
|
|
"Total number of print jobs",
|
|
[]string{"printer"},
|
|
nil,
|
|
),
|
|
jobStateTotal: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "job", "state_total"),
|
|
"Number of jobs per state",
|
|
[]string{"printer", "state"},
|
|
nil,
|
|
),
|
|
printersTotal: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "printer", "total"),
|
|
"Number of available printers",
|
|
nil,
|
|
nil,
|
|
),
|
|
printerStateTotal: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "printer", "state_total"),
|
|
"Number of printers per state",
|
|
[]string{"printer", "state"},
|
|
nil,
|
|
),
|
|
}, nil
|
|
}
|
|
|
|
type Exporter struct {
|
|
log logr.Logger
|
|
client *ipp.CUPSClient
|
|
|
|
lastJobId int
|
|
lastCompletedJobId int
|
|
|
|
cupsUp *prometheus.Desc
|
|
scrapeDurationSeconds *prometheus.Desc
|
|
jobsTotal *prometheus.Desc
|
|
jobStateTotal *prometheus.Desc
|
|
printersTotal *prometheus.Desc
|
|
printerStateTotal *prometheus.Desc
|
|
}
|
|
|
|
func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
|
|
ch <- e.cupsUp
|
|
ch <- e.scrapeDurationSeconds
|
|
ch <- e.jobsTotal
|
|
ch <- e.jobStateTotal
|
|
ch <- e.printersTotal
|
|
ch <- e.printerStateTotal
|
|
}
|
|
|
|
func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
|
|
cupsUp := float64(1)
|
|
scrapeStartTime := time.Now()
|
|
|
|
if err := e.jobsMetrics(ch); err != nil {
|
|
e.log.Error(err, "failed to get job metrics")
|
|
cupsUp = 0
|
|
}
|
|
|
|
if err := e.printerMetrics(ch); err != nil {
|
|
e.log.Error(err, "failed to get printer metrics")
|
|
cupsUp = 0
|
|
}
|
|
|
|
scrapeDuration := time.Since(scrapeStartTime)
|
|
|
|
ch <- prometheus.MustNewConstMetric(e.scrapeDurationSeconds, prometheus.GaugeValue, scrapeDuration.Seconds())
|
|
ch <- prometheus.MustNewConstMetric(e.cupsUp, prometheus.GaugeValue, cupsUp)
|
|
}
|