mirror of
https://github.com/kubernetes-sigs/kind.git
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56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
/*
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Copyright 2020 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 nodeimage
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import (
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"path"
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"regexp"
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"strings"
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"sigs.k8s.io/kind/pkg/errors"
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"sigs.k8s.io/kind/pkg/exec"
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)
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// createFile creates the file at filePath in the container,
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// ensuring the directory exists and writing contents to the file
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func createFile(containerCmder exec.Cmder, filePath, contents string) error {
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// NOTE: the paths inside the container should use the path package
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// and not filepath (!), we want posixy paths in the linux container, NOT
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// whatever path format the host uses. For paths on the host we use filepath
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if err := containerCmder.Command("mkdir", "-p", path.Dir(filePath)).Run(); err != nil {
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return err
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}
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return containerCmder.Command(
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"cp", "/dev/stdin", filePath,
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).SetStdin(
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strings.NewReader(contents),
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).Run()
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}
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func findSandboxImage(config string) (string, error) {
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match := regexp.MustCompile(`sandbox_image\s+=\s+"([^\n]+)"`).FindStringSubmatch(config)
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if len(match) < 2 {
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return "", errors.New("failed to parse sandbox_image from config")
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}
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return match[1], nil
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}
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func dockerBuildOsAndArch(arch string) string {
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return "linux/" + arch
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}
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