c9d398d01e
This PR unpacks the downloaded ConfigMap to a set of files on the node. This enables other config files to ride alongside the KubeletConfiguration, and the KubeletConfiguration to refer to these cohabitants with relative paths. This PR also stops storing dynamic config metadata (e.g. current, last-known-good config records) in the same directory as config checkpoints. Instead, it splits the storage into `meta` and `checkpoints` dirs.
123 lines
2.9 KiB
Go
123 lines
2.9 KiB
Go
/*
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Copyright 2017 The Kubernetes 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package filesystem
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"time"
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)
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// DefaultFs implements Filesystem using same-named functions from "os" and "io/ioutil"
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type DefaultFs struct{}
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var _ Filesystem = DefaultFs{}
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// Stat via os.Stat
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func (DefaultFs) Stat(name string) (os.FileInfo, error) {
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return os.Stat(name)
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}
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// Create via os.Create
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func (DefaultFs) Create(name string) (File, error) {
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file, err := os.Create(name)
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if err != nil {
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return nil, err
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}
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return &defaultFile{file}, nil
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}
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// Rename via os.Rename
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func (DefaultFs) Rename(oldpath, newpath string) error {
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return os.Rename(oldpath, newpath)
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}
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// MkdirAll via os.MkdirAll
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func (DefaultFs) MkdirAll(path string, perm os.FileMode) error {
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return os.MkdirAll(path, perm)
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}
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// Chtimes via os.Chtimes
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func (DefaultFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
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return os.Chtimes(name, atime, mtime)
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}
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// RemoveAll via os.RemoveAll
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func (DefaultFs) RemoveAll(path string) error {
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return os.RemoveAll(path)
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}
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// Remove via os.RemoveAll
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func (DefaultFs) Remove(name string) error {
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return os.Remove(name)
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}
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// ReadFile via ioutil.ReadFile
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func (DefaultFs) ReadFile(filename string) ([]byte, error) {
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return ioutil.ReadFile(filename)
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}
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// TempDir via ioutil.TempDir
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func (DefaultFs) TempDir(dir, prefix string) (string, error) {
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return ioutil.TempDir(dir, prefix)
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}
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// TempFile via ioutil.TempFile
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func (DefaultFs) TempFile(dir, prefix string) (File, error) {
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file, err := ioutil.TempFile(dir, prefix)
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if err != nil {
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return nil, err
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}
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return &defaultFile{file}, nil
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}
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// ReadDir via ioutil.ReadDir
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func (DefaultFs) ReadDir(dirname string) ([]os.FileInfo, error) {
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return ioutil.ReadDir(dirname)
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}
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// Walk via filepath.Walk
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func (DefaultFs) Walk(root string, walkFn filepath.WalkFunc) error {
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return filepath.Walk(root, walkFn)
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}
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// defaultFile implements File using same-named functions from "os"
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type defaultFile struct {
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file *os.File
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}
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// Name via os.File.Name
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func (file *defaultFile) Name() string {
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return file.file.Name()
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}
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// Write via os.File.Write
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func (file *defaultFile) Write(b []byte) (n int, err error) {
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return file.file.Write(b)
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}
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// Sync via os.File.Sync
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func (file *defaultFile) Sync() error {
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return file.file.Sync()
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}
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// Close via os.File.Close
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func (file *defaultFile) Close() error {
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return file.file.Close()
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}
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