109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
// vagrant implements the packer.PostProcessor interface and adds a
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// post-processor that turns artifacts of known builders into Vagrant
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// boxes.
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package vagrant
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import (
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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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"log"
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"text/template"
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)
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var builtins = map[string]string{
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"mitchellh.amazonebs": "aws",
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"mitchellh.virtualbox": "virtualbox",
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"mitchellh.vmware": "vmware",
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}
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type Config struct {
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OutputPath string `mapstructure:"output"`
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}
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type PostProcessor struct {
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config Config
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premade map[string]packer.PostProcessor
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}
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func (p *PostProcessor) 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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if p.config.OutputPath == "" {
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p.config.OutputPath = "packer_{{.Provider}}.box"
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}
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_, err = template.New("output").Parse(p.config.OutputPath)
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if err != nil {
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return fmt.Errorf("output invalid template: %s", err)
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}
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var mapConfig map[string]interface{}
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if err := mapstructure.Decode(raw, &mapConfig); err != nil {
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return err
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}
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p.premade = make(map[string]packer.PostProcessor)
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errors := make([]error, 0)
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for k, raw := range mapConfig {
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pp := keyToPostProcessor(k)
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if pp == nil {
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continue
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}
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if err := pp.Configure(raw); err != nil {
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errors = append(errors, err)
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}
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p.premade[k] = pp
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}
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if len(errors) > 0 {
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return &packer.MultiError{errors}
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}
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return nil
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}
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func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, error) {
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ppName, ok := builtins[artifact.BuilderId()]
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if !ok {
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return nil, fmt.Errorf("Unknown artifact type, can't build box: %s", artifact.BuilderId())
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}
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// Use the premade PostProcessor if we have one. Otherwise, we
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// create it and configure it here.
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pp, ok := p.premade[ppName]
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if !ok {
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log.Printf("Premade post-processor for '%s' not found. Creating.", ppName)
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pp = keyToPostProcessor(ppName)
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if pp == nil {
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return nil, fmt.Errorf("Vagrant box post-processor not found: %s", ppName)
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}
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config := map[string]string{"output": p.config.OutputPath}
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if err := pp.Configure(config); err != nil {
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return nil, err
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}
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}
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ui.Say(fmt.Sprintf("Creating Vagrant box for '%s' provider", ppName))
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return pp.PostProcess(ui, artifact)
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}
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func keyToPostProcessor(key string) packer.PostProcessor {
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switch key {
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case "aws":
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return new(AWSBoxPostProcessor)
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case "virtualbox":
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return new(VBoxBoxPostProcessor)
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case "vmware":
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return new(VMwareBoxPostProcessor)
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default:
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return nil
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}
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}
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