forked from rook/rook
Sébastien Han
121c2987e3
We don't need to use tini. We don't have anything in the rook operator that would either create zombie processes (no threads) or use exec (to fork). The Go binary has a really good signal handling mechanism. Closes: https://github.com/rook/rook/issues/8794 Signed-off-by: Sébastien Han <seb@redhat.com>
73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
/*
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Copyright 2019 The Rook Authors. All rights reserved.
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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 util
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import (
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"io"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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)
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// override these for unit testing
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var defaultRookDir = "/usr/local/bin"
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// CopyBinaries copies the "rook" binary to a shared volume at the target path.
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func CopyBinaries(target string) error {
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return copyBinary(defaultRookDir, target, "rook")
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}
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// #nosec G307 Calling defer to close the file without checking the error return is not a risk for a simple file open and close
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func copyBinary(sourceDir, targetDir, filename string) error {
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sourcePath := path.Join(sourceDir, filename)
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targetPath := path.Join(targetDir, filename)
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logger.Infof("copying %s to %s", sourcePath, targetPath)
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// Check if the source path exists, and look in PATH if it doesn't
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if _, err := os.Stat(sourcePath); err != nil {
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if sourcePath, err = exec.LookPath(filename); err != nil {
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return err
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}
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}
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// Check if the target path exists, and skip the copy if it does
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if _, err := os.Stat(targetPath); err == nil {
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return nil
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}
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sourceFile, err := os.Open(filepath.Clean(sourcePath))
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if err != nil {
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return err
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}
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defer sourceFile.Close()
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destinationFile, err := os.Create(filepath.Clean(targetPath))
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if err != nil {
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return err
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}
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defer destinationFile.Close()
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if _, err := io.Copy(destinationFile, sourceFile); err != nil {
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return err
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}
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if err := destinationFile.Close(); err != nil {
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return err
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}
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// #nosec targetPath requires the permission to execute
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return os.Chmod(targetPath, 0700)
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}
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