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fs.go
util
.gitignore
.golangci.yml
CONTRIBUTING.md
LICENSE
MAINTAINERS.md
Makefile
Makefile.common
NOTICE
README.md
arp.go
buddyinfo.go
cpuinfo.go
cpuinfo_arm.go
cpuinfo_arm64.go
cpuinfo_default.go
cpuinfo_mips.go
cpuinfo_mips64.go
cpuinfo_mips64le.go
cpuinfo_mipsle.go
cpuinfo_ppc64.go
cpuinfo_ppc64le.go
cpuinfo_s390x.go
crypto.go
doc.go
fixtures.ttar
fs.go
fscache.go
go.mod
go.sum
ipvs.go
kernel_random.go
loadavg.go
mdstat.go
meminfo.go
mountinfo.go
mountstats.go
net_conntrackstat.go
net_dev.go
net_sockstat.go
net_softnet.go
net_udp.go
net_unix.go
proc.go
proc_cgroup.go
proc_environ.go
proc_fdinfo.go
proc_io.go
proc_limits.go
proc_maps.go
proc_ns.go
proc_psi.go
proc_smaps.go
proc_stat.go
proc_status.go
schedstat.go
stat.go
swaps.go
ttar
vm.go
xfrm.go
zoneinfo.go
spf13
golang.org
google.golang.org
gopkg.in
k8s.io
sigs.k8s.io
modules.txt
watchdog
.dockerignore
.gitattributes
.gitignore
Dockerfile
LICENSE.md
README.md
config.yaml
go.mod
go.sum
gzip.go
main.go
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// Copyright 2019 The Prometheus Authors
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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 fs
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import (
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"fmt"
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"os"
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"path/filepath"
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)
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const (
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// DefaultProcMountPoint is the common mount point of the proc filesystem.
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DefaultProcMountPoint = "/proc"
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// DefaultSysMountPoint is the common mount point of the sys filesystem.
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DefaultSysMountPoint = "/sys"
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// DefaultConfigfsMountPoint is the common mount point of the configfs
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DefaultConfigfsMountPoint = "/sys/kernel/config"
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)
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// FS represents a pseudo-filesystem, normally /proc or /sys, which provides an
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// interface to kernel data structures.
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type FS string
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// NewFS returns a new FS mounted under the given mountPoint. It will error
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// if the mount point can't be read.
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func NewFS(mountPoint string) (FS, error) {
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info, err := os.Stat(mountPoint)
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if err != nil {
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return "", fmt.Errorf("could not read %s: %s", mountPoint, err)
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}
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if !info.IsDir() {
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return "", fmt.Errorf("mount point %s is not a directory", mountPoint)
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}
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return FS(mountPoint), nil
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}
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// Path appends the given path elements to the filesystem path, adding separators
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// as necessary.
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func (fs FS) Path(p ...string) string {
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return filepath.Join(append([]string{string(fs)}, p...)...)
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}
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