packer-cn/post-processor/vagrant/aws.go

114 lines
2.5 KiB
Go

package vagrant
import (
"fmt"
"github.com/mitchellh/mapstructure"
"github.com/mitchellh/packer/packer"
"io/ioutil"
"os"
"path/filepath"
"strings"
"text/template"
)
type AWSBoxConfig struct {
OutputPath string `mapstructure:"output"`
VagrantfileTemplate string `mapstructure:"vagrantfile_template"`
}
type AWSVagrantfileTemplate struct {
Images map[string]string
}
type AWSBoxPostProcessor struct {
config AWSBoxConfig
}
func (p *AWSBoxPostProcessor) Configure(raw interface{}) error {
err := mapstructure.Decode(raw, &p.config)
if err != nil {
return err
}
return nil
}
func (p *AWSBoxPostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, bool, error) {
// Determine the regions...
tplData := &AWSVagrantfileTemplate{
Images: make(map[string]string),
}
for _, regions := range strings.Split(artifact.Id(), ",") {
parts := strings.Split(regions, ":")
if len(parts) != 2 {
return nil, false, fmt.Errorf("Poorly formatted artifact ID: %s", artifact.Id())
}
tplData.Images[parts[0]] = parts[1]
}
// Compile the output path
outputPath, err := ProcessOutputPath(p.config.OutputPath, "aws", artifact)
if err != nil {
return nil, false, err
}
// Create a temporary directory for us to build the contents of the box in
dir, err := ioutil.TempDir("", "packer")
if err != nil {
return nil, false, err
}
defer os.RemoveAll(dir)
// Create the Vagrantfile from the template
vf, err := os.Create(filepath.Join(dir, "Vagrantfile"))
if err != nil {
return nil, false, err
}
defer vf.Close()
vagrantfileContents := defaultAWSVagrantfile
if p.config.VagrantfileTemplate != "" {
f, err := os.Open(p.config.VagrantfileTemplate)
if err != nil {
return nil, false, err
}
defer f.Close()
contents, err := ioutil.ReadAll(f)
if err != nil {
return nil, false, err
}
vagrantfileContents = string(contents)
}
t := template.Must(template.New("vagrantfile").Parse(vagrantfileContents))
t.Execute(vf, tplData)
vf.Close()
// Create the metadata
metadata := map[string]string{"provider": "aws"}
if err := WriteMetadata(dir, metadata); err != nil {
return nil, false, err
}
// Compress the directory to the given output path
if err := DirToBox(outputPath, dir); err != nil {
return nil, false, err
}
return NewArtifact("aws", outputPath), true, nil
}
var defaultAWSVagrantfile = `
Vagrant.configure("2") do |config|
config.vm.provider "aws" do |aws|
{{ range $region, $ami := .Images }}
aws.region_config "{{ $region }}", ami: "{{ $ami }}"
{{ end }}
end
end
`