vikunja-api/pkg/metrics/metrics.go
konrad d28f005552 Update xorm to v1 (#323)
Fix limit for databases other than sqlite

go mod tidy && go mod vendor

Remove unneeded break statements

Make everything work with the new xorm version

Fix xorm logging

Fix lint

Fix redis init

Fix using id field

Fix database init for testing

Change default database log level

Add xorm logger

Use const for postgres

go mod tidy

Merge branch 'master' into update/xorm

# Conflicts:
#	go.mod
#	go.sum
#	vendor/modules.txt

go mod vendor

Fix loading fixtures for postgres

Go mod vendor1

Update xorm to version 1

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/323
2020-04-12 17:29:24 +00:00

130 lines
3.7 KiB
Go

// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package metrics
import (
"code.vikunja.io/api/pkg/config"
"code.vikunja.io/api/pkg/log"
"code.vikunja.io/api/pkg/red"
"github.com/go-redis/redis/v7"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
var r *redis.Client
const (
// ListCountKey is the name of the key in which we save the list count
ListCountKey = `listcount`
// UserCountKey is the name of the key we use to store total users in redis
UserCountKey = `usercount`
// NamespaceCountKey is the name of the key we use to store the amount of total namespaces in redis
NamespaceCountKey = `namespacecount`
// TaskCountKey is the name of the key we use to store the amount of total tasks in redis
TaskCountKey = `taskcount`
// TeamCountKey is the name of the key we use to store the amount of total teams in redis
TeamCountKey = `teamcount`
)
// InitMetrics Initializes the metrics
func InitMetrics() {
r = red.GetRedis()
// Register total list count metric
promauto.NewGaugeFunc(prometheus.GaugeOpts{
Name: "vikunja_list_count",
Help: "The number of lists on this instance",
}, func() float64 {
count, _ := GetCount(ListCountKey)
return float64(count)
})
// Register total user count metric
promauto.NewGaugeFunc(prometheus.GaugeOpts{
Name: "vikunja_user_count",
Help: "The total number of users on this instance",
}, func() float64 {
count, _ := GetCount(UserCountKey)
return float64(count)
})
// Register total Namespaces count metric
promauto.NewGaugeFunc(prometheus.GaugeOpts{
Name: "vikunja_namespcae_count",
Help: "The total number of namespaces on this instance",
}, func() float64 {
count, _ := GetCount(NamespaceCountKey)
return float64(count)
})
// Register total Tasks count metric
promauto.NewGaugeFunc(prometheus.GaugeOpts{
Name: "vikunja_task_count",
Help: "The total number of tasks on this instance",
}, func() float64 {
count, _ := GetCount(TaskCountKey)
return float64(count)
})
// Register total user count metric
promauto.NewGaugeFunc(prometheus.GaugeOpts{
Name: "vikunja_team_count",
Help: "The total number of teams on this instance",
}, func() float64 {
count, _ := GetCount(TeamCountKey)
return float64(count)
})
}
// GetCount returns the current count from redis
func GetCount(key string) (count int64, err error) {
count, err = r.Get(key).Int64()
if err != nil && err.Error() != "redis: nil" {
return
}
err = nil
return
}
// SetCount sets the list count to a given value
func SetCount(count int64, key string) error {
return r.Set(key, count, 0).Err()
}
// UpdateCount updates a count with a given amount
func UpdateCount(update int64, key string) {
if !config.ServiceEnableMetrics.GetBool() {
return
}
if update > 0 {
err := r.IncrBy(key, update).Err()
if err != nil {
log.Error(err.Error())
}
}
if update < 0 {
err := r.DecrBy(key, update).Err()
if err != nil {
log.Error(err.Error())
}
}
}