packer-cn/builder/vagrant/builder.go

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package vagrant
import (
"context"
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"errors"
"fmt"
"os"
"path/filepath"
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"strings"
"time"
"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/common/bootcommand"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/template/interpolate"
)
// Builder implements packer.Builder and builds the actual VirtualBox
// images.
type Builder struct {
config *Config
runner multistep.Runner
}
type SSHConfig struct {
Comm communicator.Config `mapstructure:",squash"`
}
type Config struct {
common.PackerConfig `mapstructure:",squash"`
common.HTTPConfig `mapstructure:",squash"`
common.ISOConfig `mapstructure:",squash"`
common.FloppyConfig `mapstructure:",squash"`
bootcommand.BootConfig `mapstructure:",squash"`
SSHConfig `mapstructure:",squash"`
// This is the name of the new virtual machine.
// By default this is "packer-BUILDNAME", where "BUILDNAME" is the name of the build.
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OutputDir string `mapstructure:"output_dir"`
SourceBox string `mapstructure:"source_path"`
GlobalID string `mapstructure:"global_id"`
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Checksum string `mapstructure:"checksum"`
ChecksumType string `mapstructure:"checksum_type"`
BoxName string `mapstructure:"box_name"`
Provider string `mapstructure:"provider"`
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Communicator string `mapstructure:"communicator"`
// Whether to Halt, Suspend, or Destroy the box
TeardownMethod string `mapstructure:"teardown_method"`
// Options for the "vagrant init" command
BoxVersion string `mapstructure:"box_version"`
Template string `mapstructure:"template"`
SyncedFolder string `mapstructure:"synced_folder"`
// Options for the "vagrant box add" command
SkipAdd bool `mapstructure:"skip_add"`
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AddCACert string `mapstructure:"add_cacert"`
AddCAPath string `mapstructure:"add_capath"`
AddCert string `mapstructure:"add_cert"`
AddClean bool `mapstructure:"add_clean"`
AddForce bool `mapstructure:"add_force"`
AddInsecure bool `mapstructure:"add_insecure"`
// Don't package the Vagrant box after build.
SkipPackage bool `mapstructure:"skip_package"`
OutputVagrantfile string `mapstructure:"output_vagrantfile"`
PackageInclude []string `mapstructure:"package_include"`
ctx interpolate.Context
}
// Prepare processes the build configuration parameters.
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
b.config = new(Config)
err := config.Decode(&b.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &b.config.ctx,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{
"boot_command",
},
},
}, raws...)
if err != nil {
return nil, err
}
// Accumulate any errors and warnings
var errs *packer.MultiError
warnings := make([]string, 0)
if b.config.OutputDir == "" {
b.config.OutputDir = fmt.Sprintf("output-%s", b.config.PackerBuildName)
}
if b.config.Comm.SSHTimeout == 0 {
b.config.Comm.SSHTimeout = 10 * time.Minute
}
if b.config.Comm.Type != "ssh" {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf(`The Vagrant builder currently only supports the ssh communicator"`))
}
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// The box isn't a namespace like you'd pull from vagrant cloud
if b.config.BoxName == "" {
b.config.BoxName = fmt.Sprintf("packer_%s", b.config.PackerBuildName)
}
if b.config.SourceBox == "" {
if b.config.GlobalID == "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("source_path is required unless you have set global_id"))
}
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} else {
if b.config.GlobalID != "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("You may either set global_id or source_path but not both"))
}
if strings.HasSuffix(b.config.SourceBox, ".box") {
if _, err := os.Stat(b.config.SourceBox); err != nil {
packer.MultiErrorAppend(errs,
fmt.Errorf("Source box '%s' needs to exist at time of config validation! %v", b.config.SourceBox, err))
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}
}
}
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if b.config.TeardownMethod == "" {
// If we're using a box that's already opened on the system, don't
// automatically destroy it. If we open the box ourselves, then go ahead
// and kill it by default.
if b.config.GlobalID != "" {
b.config.TeardownMethod = "halt"
} else {
b.config.TeardownMethod = "destroy"
}
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} else {
matches := false
for _, name := range []string{"halt", "suspend", "destroy"} {
if strings.ToLower(b.config.TeardownMethod) == name {
matches = true
}
}
if !matches {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf(`TeardownMethod must be "halt", "suspend", or "destroy"`))
}
}
if errs != nil && len(errs.Errors) > 0 {
return warnings, errs
}
return warnings, nil
}
// Run executes a Packer build and returns a packer.Artifact representing
// a VirtualBox appliance.
func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (packer.Artifact, error) {
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// Create the driver that we'll use to communicate with VirtualBox
VagrantCWD, err := filepath.Abs(b.config.OutputDir)
if err != nil {
return nil, err
}
driver, err := NewDriver(VagrantCWD)
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if err != nil {
return nil, fmt.Errorf("Failed creating VirtualBox driver: %s", err)
}
// Set up the state.
state := new(multistep.BasicStateBag)
state.Put("config", b.config)
state.Put("debug", b.config.PackerDebug)
state.Put("driver", driver)
state.Put("hook", hook)
state.Put("ui", ui)
// Build the steps.
steps := []multistep.Step{}
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// Download if source box isn't from vagrant cloud.
if strings.HasSuffix(b.config.SourceBox, ".box") {
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steps = append(steps, &common.StepDownload{
Checksum: b.config.Checksum,
ChecksumType: b.config.ChecksumType,
Description: "Box",
Extension: "box",
ResultKey: "box_path",
Url: []string{b.config.SourceBox},
})
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}
steps = append(steps,
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&common.StepOutputDir{
Force: b.config.PackerForce,
Path: b.config.OutputDir,
},
&StepCreateVagrantfile{
Template: b.config.Template,
SyncedFolder: b.config.SyncedFolder,
SourceBox: b.config.SourceBox,
OutputDir: b.config.OutputDir,
GlobalID: b.config.GlobalID,
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},
&StepAddBox{
BoxVersion: b.config.BoxVersion,
CACert: b.config.AddCACert,
CAPath: b.config.AddCAPath,
DownloadCert: b.config.AddCert,
Clean: b.config.AddClean,
Force: b.config.AddForce,
Insecure: b.config.AddInsecure,
Provider: b.config.Provider,
SourceBox: b.config.SourceBox,
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BoxName: b.config.BoxName,
GlobalID: b.config.GlobalID,
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SkipAdd: b.config.SkipAdd,
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},
&StepUp{
TeardownMethod: b.config.TeardownMethod,
Provider: b.config.Provider,
GlobalID: b.config.GlobalID,
},
&StepSSHConfig{
b.config.GlobalID,
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},
&communicator.StepConnect{
Config: &b.config.SSHConfig.Comm,
Host: CommHost(),
SSHConfig: b.config.SSHConfig.Comm.SSHConfigFunc(),
},
new(common.StepProvision),
&StepPackage{
SkipPackage: b.config.SkipPackage,
Include: b.config.PackageInclude,
Vagrantfile: b.config.OutputVagrantfile,
GlobalID: b.config.GlobalID,
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})
// Run the steps.
b.runner = common.NewRunnerWithPauseFn(steps, b.config.PackerConfig, ui, state)
b.runner.Run(ctx, state)
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// Report any errors.
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
// If we were interrupted or cancelled, then just exit.
if _, ok := state.GetOk(multistep.StateCancelled); ok {
return nil, errors.New("Build was cancelled.")
}
if _, ok := state.GetOk(multistep.StateHalted); ok {
return nil, errors.New("Build was halted.")
}
return NewArtifact(b.config.Provider, b.config.OutputDir), nil
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}
// Cancel.