38 lines
822 B
Go
38 lines
822 B
Go
package main
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/docker/docker/pkg/archive"
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"github.com/genuinetools/binctr/image"
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"github.com/opencontainers/runtime-spec/specs-go"
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)
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func unpackRootfs(spec *specs.Spec) error {
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// Make the rootfs directory.
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if err := os.MkdirAll(defaultRootfsDir, 0755); err != nil {
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return err
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}
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// Get the embedded tarball.
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data, err := image.Data()
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if err != nil {
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return err
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}
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// Unpack the tarball.
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r := bytes.NewReader(data)
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if err := archive.Untar(r, defaultRootfsDir, &archive.TarOptions{NoLchown: true}); err != nil {
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return err
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}
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// Write a resolv.conf.
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if err := ioutil.WriteFile(filepath.Join(defaultRootfsDir, "etc", "resolv.conf"), []byte("nameserver 8.8.8.8\nnameserver 8.8.4.4"), 0755); err != nil {
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return err
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}
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return nil
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}
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