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metrics_common.go
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/
metrics_common.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 report
import (
"os"
"os/user"
"strconv"
"time"
"github.com/gofrs/uuid"
"github.com/elastic/elastic-agent-libs/logp"
"github.com/elastic/elastic-agent-libs/monitoring"
)
var (
ephemeralID uuid.UUID
processMetrics *monitoring.Registry
startTime time.Time
)
func init() {
startTime = time.Now()
processMetrics = monitoring.Default.NewRegistry("beat")
var err error
ephemeralID, err = uuid.NewV4()
if err != nil {
logp.Err("Error while generating ephemeral ID for Beat")
}
}
// EphemeralID returns generated EphemeralID
func EphemeralID() uuid.UUID {
return ephemeralID
}
// SetupInfoUserMetrics adds user data to the `info` registry component
// this is performed async, as on windows user lookup can take up to a minute.
func SetupInfoUserMetrics() {
infoRegistry := monitoring.GetNamespace("info").GetRegistry()
go func() {
if u, err := user.Current(); err != nil {
// This usually happens if the user UID does not exist in /etc/passwd. It might be the case on K8S
// if the user set securityContext.runAsUser to an arbitrary value.
monitoring.NewString(infoRegistry, "uid").Set(strconv.Itoa(os.Getuid()))
monitoring.NewString(infoRegistry, "gid").Set(strconv.Itoa(os.Getgid()))
} else {
monitoring.NewString(infoRegistry, "username").Set(u.Username)
monitoring.NewString(infoRegistry, "uid").Set(u.Uid)
monitoring.NewString(infoRegistry, "gid").Set(u.Gid)
}
}()
}