164 lines
3.5 KiB
Go
164 lines
3.5 KiB
Go
package vagrant
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import (
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"errors"
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"fmt"
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"github.com/mitchellh/mapstructure"
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"github.com/mitchellh/packer/packer"
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"io"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"text/template"
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)
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type VBoxBoxConfig struct {
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OutputPath string `mapstructure:"output"`
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VagrantfileTemplate string `mapstructure:"vagrantfile_template"`
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}
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type VBoxVagrantfileTemplate struct {
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BaseMacAddress string
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}
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type VBoxBoxPostProcessor struct {
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config VBoxBoxConfig
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}
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func (p *VBoxBoxPostProcessor) Configure(raw interface{}) error {
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err := mapstructure.Decode(raw, &p.config)
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if 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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func (p *VBoxBoxPostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, error) {
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var err error
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tplData := &VBoxVagrantfileTemplate{}
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tplData.BaseMacAddress, err = p.findBaseMacAddress(artifact)
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if err != nil {
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return nil, err
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}
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// Compile the output path
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outputPath, err := ProcessOutputPath(p.config.OutputPath, "virtualbox", artifact)
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if err != nil {
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return nil, err
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}
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// Create a temporary directory for us to build the contents of the box in
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dir, err := ioutil.TempDir("", "packer")
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if err != nil {
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return nil, err
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}
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defer os.RemoveAll(dir)
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// Copy all of the original contents into the temporary directory
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for _, path := range artifact.Files() {
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ui.Message(fmt.Sprintf("Copying: %s", path))
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src, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer src.Close()
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dst, err := os.Create(filepath.Join(dir, filepath.Base(path)))
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if err != nil {
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return nil, err
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}
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defer dst.Close()
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if _, err := io.Copy(dst, src); err != nil {
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return nil, err
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}
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}
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// Create the Vagrantfile from the template
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vf, err := os.Create(filepath.Join(dir, "Vagrantfile"))
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if err != nil {
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return nil, err
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}
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defer vf.Close()
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vagrantfileContents := defaultVBoxVagrantfile
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if p.config.VagrantfileTemplate != "" {
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f, err := os.Open(p.config.VagrantfileTemplate)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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contents, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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vagrantfileContents = string(contents)
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}
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t := template.Must(template.New("vagrantfile").Parse(vagrantfileContents))
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t.Execute(vf, tplData)
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vf.Close()
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// Create the metadata
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metadata := map[string]string{"provider": "virtualbox"}
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if err := WriteMetadata(dir, metadata); err != nil {
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return nil, err
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}
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// Compress the directory to the given output path
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ui.Message(fmt.Sprintf("Compressing box..."))
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if err := DirToBox(outputPath, dir); err != nil {
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return nil, err
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}
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return NewArtifact("virtualbox", outputPath), nil
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}
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func (p *VBoxBoxPostProcessor) findBaseMacAddress(a packer.Artifact) (string, error) {
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log.Println("Looking for OVF for base mac address...")
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var ovf string
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for _, f := range a.Files() {
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if strings.HasSuffix(f, ".ovf") {
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log.Printf("OVF found: %s", f)
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ovf = f
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break
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}
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}
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if ovf == "" {
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return "", errors.New("ovf file couldn't be found")
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}
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f, err := os.Open(ovf)
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if err != nil {
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return "", err
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}
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defer f.Close()
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data, err := ioutil.ReadAll(f)
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if err != nil {
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return "", err
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}
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re := regexp.MustCompile(`<Adapter slot="0".+?MACAddress="(.+?)"`)
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matches := re.FindSubmatch(data)
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if matches == nil {
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return "", errors.New("can't find base mac address in OVF")
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}
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log.Printf("Base mac address: %s", string(matches[1]))
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return string(matches[1]), nil
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}
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var defaultVBoxVagrantfile = `
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Vagrant.configure("2") do |config|
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config.vm.base_mac = "{{ .BaseMacAddress }}"
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end
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`
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