packer-cn/builder/vagrant/builder.go

382 lines
14 KiB
Go

//go:generate struct-markdown
//go:generate mapstructure-to-hcl2 -type Config
package vagrant
import (
"context"
"errors"
"fmt"
"net/url"
"os"
"path/filepath"
"strings"
"time"
"github.com/hashicorp/hcl/v2/hcldec"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/packer-plugin-sdk/bootcommand"
"github.com/hashicorp/packer/packer-plugin-sdk/common"
"github.com/hashicorp/packer/packer-plugin-sdk/multistep"
"github.com/hashicorp/packer/packer-plugin-sdk/multistep/commonsteps"
"github.com/hashicorp/packer/packer-plugin-sdk/template/interpolate"
)
// Builder implements packer.Builder and builds the actual VirtualBox
// images.
type Builder struct {
config Config
runner multistep.Runner
}
type Config struct {
common.PackerConfig `mapstructure:",squash"`
commonsteps.HTTPConfig `mapstructure:",squash"`
commonsteps.ISOConfig `mapstructure:",squash"`
commonsteps.FloppyConfig `mapstructure:",squash"`
bootcommand.BootConfig `mapstructure:",squash"`
Comm communicator.Config `mapstructure:",squash"`
// The directory to create that will contain your output box. We always
// create this directory and run from inside of it to prevent Vagrant init
// collisions. If unset, it will be set to packer- plus your buildname.
OutputDir string `mapstructure:"output_dir" required:"false"`
// URL of the vagrant box to use, or the name of the vagrant box.
// hashicorp/precise64, ./mylocalbox.box and https://example.com/my-box.box
// are all valid source boxes. If your source is a .box file, whether
// locally or from a URL like the latter example above, you will also need
// to provide a box_name. This option is required, unless you set
// global_id. You may only set one or the other, not both.
SourceBox string `mapstructure:"source_path" required:"true"`
// the global id of a Vagrant box already added to Vagrant on your system.
// You can find the global id of your Vagrant boxes using the command
// vagrant global-status; your global_id will be a 7-digit number and
// letter comination that you'll find in the leftmost column of the
// global-status output. If you choose to use global_id instead of
// source_box, Packer will skip the Vagrant initialize and add steps, and
// simply launch the box directly using the global id.
GlobalID string `mapstructure:"global_id" required:"true"`
// The checksum for the .box file. The type of the checksum is specified
// within the checksum field as a prefix, ex: "md5:{$checksum}". The type
// of the checksum can also be omitted and Packer will try to infer it
// based on string length. Valid values are "none", "{$checksum}",
// "md5:{$checksum}", "sha1:{$checksum}", "sha256:{$checksum}",
// "sha512:{$checksum}" or "file:{$path}". Here is a list of valid checksum
// values:
// * md5:090992ba9fd140077b0661cb75f7ce13
// * 090992ba9fd140077b0661cb75f7ce13
// * sha1:ebfb681885ddf1234c18094a45bbeafd91467911
// * ebfb681885ddf1234c18094a45bbeafd91467911
// * sha256:ed363350696a726b7932db864dda019bd2017365c9e299627830f06954643f93
// * ed363350696a726b7932db864dda019bd2017365c9e299627830f06954643f93
// * file:http://releases.ubuntu.com/20.04/MD5SUMS
// * file:file://./local/path/file.sum
// * file:./local/path/file.sum
// * none
// Although the checksum will not be verified when it is set to "none",
// this is not recommended since these files can be very large and
// corruption does happen from time to time.
Checksum string `mapstructure:"checksum" required:"false"`
// if your source_box is a boxfile that we need to add to Vagrant, this is
// the name to give it. If left blank, will default to "packer_" plus your
// buildname.
BoxName string `mapstructure:"box_name" required:"false"`
// If true, Vagrant will automatically insert a keypair to use for SSH,
// replacing Vagrant's default insecure key inside the machine if detected.
// By default, Packer sets this to false.
InsertKey bool `mapstructure:"insert_key" required:"false"`
// The vagrant provider.
// This parameter is required when source_path have more than one provider,
// or when using vagrant-cloud post-processor. Defaults to unset.
Provider string `mapstructure:"provider" required:"false"`
Communicator string `mapstructure:"communicator"`
// Options for the "vagrant init" command
// What vagrantfile to use
VagrantfileTpl string `mapstructure:"vagrantfile_template"`
// Whether to halt, suspend, or destroy the box when the build has
// completed. Defaults to "halt"
TeardownMethod string `mapstructure:"teardown_method" required:"false"`
// What box version to use when initializing Vagrant.
BoxVersion string `mapstructure:"box_version" required:"false"`
// a path to a golang template for a vagrantfile. Our default template can
// be found here. The template variables available to you are
// `{{ .BoxName }}`, `{{ .SyncedFolder }}`, and `{{.InsertKey}}`, which
// correspond to the Packer options box_name, synced_folder, and insert_key.
Template string `mapstructure:"template" required:"false"`
// Path to the folder to be synced to the guest. The path can be absolute
// or relative to the directory Packer is being run from.
SyncedFolder string `mapstructure:"synced_folder"`
// Don't call "vagrant add" to add the box to your local environment; this
// is necessary if you want to launch a box that is already added to your
// vagrant environment.
SkipAdd bool `mapstructure:"skip_add" required:"false"`
// Equivalent to setting the
// --cacert
// option in vagrant add; defaults to unset.
AddCACert string `mapstructure:"add_cacert" required:"false"`
// Equivalent to setting the
// --capath option
// in vagrant add; defaults to unset.
AddCAPath string `mapstructure:"add_capath" required:"false"`
// Equivalent to setting the
// --cert option in
// vagrant add; defaults to unset.
AddCert string `mapstructure:"add_cert" required:"false"`
// Equivalent to setting the
// --clean flag in
// vagrant add; defaults to unset.
AddClean bool `mapstructure:"add_clean" required:"false"`
// Equivalent to setting the
// --force flag in
// vagrant add; defaults to unset.
AddForce bool `mapstructure:"add_force" required:"false"`
// Equivalent to setting the
// --insecure flag in
// vagrant add; defaults to unset.
AddInsecure bool `mapstructure:"add_insecure" required:"false"`
// if true, Packer will not call vagrant package to
// package your base box into its own standalone .box file.
SkipPackage bool `mapstructure:"skip_package" required:"false"`
OutputVagrantfile string `mapstructure:"output_vagrantfile"`
// Equivalent to setting the
// [`--include`](https://www.vagrantup.com/docs/cli/package.html#include-x-y-z) option
// in `vagrant package`; defaults to unset
PackageInclude []string `mapstructure:"package_include"`
ctx interpolate.Context
}
func (b *Builder) ConfigSpec() hcldec.ObjectSpec { return b.config.FlatMapstructure().HCL2Spec() }
func (b *Builder) Prepare(raws ...interface{}) ([]string, []string, error) {
err := config.Decode(&b.config, &config.DecodeOpts{
PluginType: BuilderId,
Interpolate: true,
InterpolateContext: &b.config.ctx,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{
"boot_command",
},
},
}, raws...)
if err != nil {
return nil, 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"`))
}
// 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"))
}
} else {
if b.config.GlobalID != "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("You may either set global_id or source_path but not both"))
}
// We're about to open up an actual boxfile. If the file is local to the
// filesystem, let's make sure it exists before we get too far into the
// build.
if strings.HasSuffix(b.config.SourceBox, ".box") {
// If scheme is "file" or empty, then we need to check the
// filesystem to make sure the box is present locally.
u, err := url.Parse(b.config.SourceBox)
if err == nil && (u.Scheme == "" || u.Scheme == "file") {
if _, err := os.Stat(b.config.SourceBox); err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("Source box '%s' needs to exist at time of"+
" config validation! %v", b.config.SourceBox, err))
}
}
}
}
if b.config.OutputVagrantfile != "" {
b.config.OutputVagrantfile, err = filepath.Abs(b.config.OutputVagrantfile)
if err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("unable to determine absolute path for output vagrantfile: %s", err))
}
}
if len(b.config.PackageInclude) > 0 {
for i, rawFile := range b.config.PackageInclude {
inclFile, err := filepath.Abs(rawFile)
if err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("unable to determine absolute path for file to be included: %s", rawFile))
}
b.config.PackageInclude[i] = inclFile
}
}
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"
}
} 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 b.config.SyncedFolder != "" {
b.config.SyncedFolder, err = filepath.Abs(b.config.SyncedFolder)
if err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("unable to determine absolute path for synced_folder: %s", b.config.SyncedFolder))
}
if _, err := os.Stat(b.config.SyncedFolder); err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("synced_folder \"%s\" does not exist on the Packer host.", b.config.SyncedFolder))
}
}
if errs != nil && len(errs.Errors) > 0 {
return nil, warnings, errs
}
return nil, 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) {
// 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)
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{}
// Download if source box isn't from vagrant cloud.
if strings.HasSuffix(b.config.SourceBox, ".box") {
steps = append(steps, &commonsteps.StepDownload{
Checksum: b.config.Checksum,
Description: "Box",
Extension: "box",
ResultKey: "box_path",
Url: []string{b.config.SourceBox},
})
}
steps = append(steps,
&commonsteps.StepOutputDir{
Force: b.config.PackerForce,
Path: b.config.OutputDir,
},
&StepCreateVagrantfile{
Template: b.config.Template,
SyncedFolder: b.config.SyncedFolder,
SourceBox: b.config.SourceBox,
BoxName: b.config.BoxName,
OutputDir: b.config.OutputDir,
GlobalID: b.config.GlobalID,
InsertKey: b.config.InsertKey,
},
&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,
BoxName: b.config.BoxName,
GlobalID: b.config.GlobalID,
SkipAdd: b.config.SkipAdd,
},
&StepUp{
TeardownMethod: b.config.TeardownMethod,
Provider: b.config.Provider,
GlobalID: b.config.GlobalID,
},
&StepSSHConfig{
b.config.GlobalID,
},
&communicator.StepConnect{
Config: &b.config.Comm,
Host: CommHost(),
SSHConfig: b.config.Comm.SSHConfigFunc(),
},
new(commonsteps.StepProvision),
&StepPackage{
SkipPackage: b.config.SkipPackage,
Include: b.config.PackageInclude,
Vagrantfile: b.config.OutputVagrantfile,
GlobalID: b.config.GlobalID,
})
// Run the steps.
b.runner = commonsteps.NewRunnerWithPauseFn(steps, b.config.PackerConfig, ui, state)
b.runner.Run(ctx, state)
// 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.")
}
generatedData := map[string]interface{}{"generated_data": state.Get("generated_data")}
return NewArtifact(b.config.Provider, b.config.OutputDir, generatedData), nil
}
// Cancel.