node_exporter/collector/paths.go
Yecheng Fu 0f9842f20a [continue 912] strip rootfs prefix for run in docker (#1058)
* strip rootfs prefix for run in docker
* Use `/` as default value of path.rootfs, and parse mounts from `/proc/1/mounts`.
* No need to mount `/proc` and `/sys` because we share host's PID
namespace, which allows processes within the container to see all of the
processes on the system.

Closes: #66

Signed-off-by: Ivan Mikheykin <ivan.mikheykin@flant.com>
Signed-off-by: Yecheng Fu <cofyc.jackson@gmail.com>
2018-10-04 14:11:21 +02:00

41 lines
1.2 KiB
Go

// Copyright 2015 The Prometheus Authors
// 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 collector
import (
"path"
"github.com/prometheus/procfs"
"gopkg.in/alecthomas/kingpin.v2"
)
var (
// The path of the proc filesystem.
procPath = kingpin.Flag("path.procfs", "procfs mountpoint.").Default(procfs.DefaultMountPoint).String()
sysPath = kingpin.Flag("path.sysfs", "sysfs mountpoint.").Default("/sys").String()
rootfsPath = kingpin.Flag("path.rootfs", "rootfs mountpoint.").Default("/").String()
)
func procFilePath(name string) string {
return path.Join(*procPath, name)
}
func sysFilePath(name string) string {
return path.Join(*sysPath, name)
}
func rootfsFilePath(name string) string {
return path.Join(*rootfsPath, name)
}