317 lines
11 KiB
Go
317 lines
11 KiB
Go
//go:generate struct-markdown
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package vagrant
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import (
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"context"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/hashicorp/packer/common"
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"github.com/hashicorp/packer/common/bootcommand"
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"github.com/hashicorp/packer/helper/communicator"
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"github.com/hashicorp/packer/helper/config"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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"github.com/hashicorp/packer/template/interpolate"
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)
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// Builder implements packer.Builder and builds the actual VirtualBox
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// images.
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type Builder struct {
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config *Config
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runner multistep.Runner
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}
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type SSHConfig struct {
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Comm communicator.Config `mapstructure:",squash"`
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}
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type Config struct {
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common.PackerConfig `mapstructure:",squash"`
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common.HTTPConfig `mapstructure:",squash"`
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common.ISOConfig `mapstructure:",squash"`
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common.FloppyConfig `mapstructure:",squash"`
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bootcommand.BootConfig `mapstructure:",squash"`
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SSHConfig `mapstructure:",squash"`
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// The directory to create that will contain your output box. We always
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// create this directory and run from inside of it to prevent Vagrant init
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// collisions. If unset, it will be set to packer- plus your buildname.
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OutputDir string `mapstructure:"output_dir" required:"false"`
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// URL of the vagrant box to use, or the name of the vagrant box.
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// hashicorp/precise64, ./mylocalbox.box and https://example.com/my-box.box
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// are all valid source boxes. If your source is a .box file, whether
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// locally or from a URL like the latter example above, you will also need
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// to provide a box_name. This option is required, unless you set
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// global_id. You may only set one or the other, not both.
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SourceBox string `mapstructure:"source_path" required:"true"`
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// the global id of a Vagrant box already added to Vagrant on your system.
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// You can find the global id of your Vagrant boxes using the command
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// vagrant global-status; your global_id will be a 7-digit number and
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// letter comination that you'll find in the leftmost column of the
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// global-status output. If you choose to use global_id instead of
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// source_box, Packer will skip the Vagrant initialize and add steps, and
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// simply launch the box directly using the global id.
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GlobalID string `mapstructure:"global_id" required:"true"`
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// The checksum for the .box file. The type of the checksum is specified
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// with checksum_type, documented below.
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Checksum string `mapstructure:"checksum" required:"false"`
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// The type of the checksum specified in checksum. Valid values are none,
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// md5, sha1, sha256, or sha512. Although the checksum will not be verified
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// when checksum_type is set to "none", this is not recommended since OVA
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// files can be very large and corruption does happen from time to time.
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ChecksumType string `mapstructure:"checksum_type" required:"false"`
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// if your source_box is a boxfile that we need to add to Vagrant, this is
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// the name to give it. If left blank, will default to "packer_" plus your
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// buildname.
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BoxName string `mapstructure:"box_name" required:"false"`
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// The vagrant provider.
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// This parameter is required when source_path have more than one provider,
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// or when using vagrant-cloud post-processor. Defaults to unset.
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Provider string `mapstructure:"provider" required:"false"`
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Communicator string `mapstructure:"communicator"`
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// Options for the "vagrant init" command
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// What vagrantfile to use
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VagrantfileTpl string `mapstructure:"vagrantfile_template"`
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// Whether to halt, suspend, or destroy the box when the build has
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// completed. Defaults to "halt"
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TeardownMethod string `mapstructure:"teardown_method" required:"false"`
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// What box version to use when initializing Vagrant.
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BoxVersion string `mapstructure:"box_version" required:"false"`
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// a path to a golang template for a vagrantfile. Our default template can
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// be found here. So far the only template variables available to you are
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// {{ .BoxName }} and {{ .SyncedFolder }}, which correspond to the Packer
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// options box_name and synced_folder.
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Template string `mapstructure:"template" required:"false"`
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SyncedFolder string `mapstructure:"synced_folder"`
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// Don't call "vagrant add" to add the box to your local environment; this
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// is necessary if you want to launch a box that is already added to your
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// vagrant environment.
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SkipAdd bool `mapstructure:"skip_add" required:"false"`
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// Equivalent to setting the
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// --cacert
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// option in vagrant add; defaults to unset.
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AddCACert string `mapstructure:"add_cacert" required:"false"`
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// Equivalent to setting the
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// --capath option
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// in vagrant add; defaults to unset.
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AddCAPath string `mapstructure:"add_capath" required:"false"`
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// Equivalent to setting the
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// --cert option in
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// vagrant add; defaults to unset.
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AddCert string `mapstructure:"add_cert" required:"false"`
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// Equivalent to setting the
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// --clean flag in
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// vagrant add; defaults to unset.
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AddClean bool `mapstructure:"add_clean" required:"false"`
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// Equivalent to setting the
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// --force flag in
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// vagrant add; defaults to unset.
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AddForce bool `mapstructure:"add_force" required:"false"`
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// Equivalent to setting the
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// --insecure flag in
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// vagrant add; defaults to unset.
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AddInsecure bool `mapstructure:"add_insecure" required:"false"`
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// if true, Packer will not call vagrant package to
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// package your base box into its own standalone .box file.
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SkipPackage bool `mapstructure:"skip_package" required:"false"`
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OutputVagrantfile string `mapstructure:"output_vagrantfile"`
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PackageInclude []string `mapstructure:"package_include"`
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ctx interpolate.Context
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}
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// Prepare processes the build configuration parameters.
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func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
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b.config = new(Config)
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err := config.Decode(&b.config, &config.DecodeOpts{
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Interpolate: true,
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InterpolateContext: &b.config.ctx,
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InterpolateFilter: &interpolate.RenderFilter{
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Exclude: []string{
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"boot_command",
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},
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},
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}, raws...)
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if err != nil {
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return nil, err
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}
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// Accumulate any errors and warnings
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var errs *packer.MultiError
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warnings := make([]string, 0)
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if b.config.OutputDir == "" {
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b.config.OutputDir = fmt.Sprintf("output-%s", b.config.PackerBuildName)
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}
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if b.config.Comm.SSHTimeout == 0 {
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b.config.Comm.SSHTimeout = 10 * time.Minute
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}
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if b.config.Comm.Type != "ssh" {
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errs = packer.MultiErrorAppend(errs,
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fmt.Errorf(`The Vagrant builder currently only supports the ssh communicator"`))
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}
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// The box isn't a namespace like you'd pull from vagrant cloud
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if b.config.BoxName == "" {
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b.config.BoxName = fmt.Sprintf("packer_%s", b.config.PackerBuildName)
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}
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if b.config.SourceBox == "" {
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if b.config.GlobalID == "" {
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errs = packer.MultiErrorAppend(errs, fmt.Errorf("source_path is required unless you have set global_id"))
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}
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} else {
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if b.config.GlobalID != "" {
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errs = packer.MultiErrorAppend(errs, fmt.Errorf("You may either set global_id or source_path but not both"))
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}
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if strings.HasSuffix(b.config.SourceBox, ".box") {
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if _, err := os.Stat(b.config.SourceBox); err != nil {
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packer.MultiErrorAppend(errs,
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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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}
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}
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if b.config.TeardownMethod == "" {
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// If we're using a box that's already opened on the system, don't
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// automatically destroy it. If we open the box ourselves, then go ahead
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// and kill it by default.
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if b.config.GlobalID != "" {
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b.config.TeardownMethod = "halt"
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} else {
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b.config.TeardownMethod = "destroy"
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}
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} else {
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matches := false
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for _, name := range []string{"halt", "suspend", "destroy"} {
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if strings.ToLower(b.config.TeardownMethod) == name {
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matches = true
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}
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}
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if !matches {
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errs = packer.MultiErrorAppend(errs,
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fmt.Errorf(`TeardownMethod must be "halt", "suspend", or "destroy"`))
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}
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}
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if errs != nil && len(errs.Errors) > 0 {
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return warnings, errs
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}
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return warnings, nil
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}
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// Run executes a Packer build and returns a packer.Artifact representing
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// a VirtualBox appliance.
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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
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VagrantCWD, err := filepath.Abs(b.config.OutputDir)
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if err != nil {
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return nil, err
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}
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driver, err := NewDriver(VagrantCWD)
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if err != nil {
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return nil, fmt.Errorf("Failed creating VirtualBox driver: %s", err)
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}
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// Set up the state.
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state := new(multistep.BasicStateBag)
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state.Put("config", b.config)
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state.Put("debug", b.config.PackerDebug)
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state.Put("driver", driver)
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state.Put("hook", hook)
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state.Put("ui", ui)
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// Build the steps.
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steps := []multistep.Step{}
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// Download if source box isn't from vagrant cloud.
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if strings.HasSuffix(b.config.SourceBox, ".box") {
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steps = append(steps, &common.StepDownload{
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Checksum: b.config.Checksum,
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ChecksumType: b.config.ChecksumType,
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Description: "Box",
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Extension: "box",
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ResultKey: "box_path",
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Url: []string{b.config.SourceBox},
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})
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}
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steps = append(steps,
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&common.StepOutputDir{
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Force: b.config.PackerForce,
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Path: b.config.OutputDir,
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},
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&StepCreateVagrantfile{
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Template: b.config.Template,
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SyncedFolder: b.config.SyncedFolder,
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SourceBox: b.config.SourceBox,
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OutputDir: b.config.OutputDir,
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GlobalID: b.config.GlobalID,
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},
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&StepAddBox{
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BoxVersion: b.config.BoxVersion,
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CACert: b.config.AddCACert,
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CAPath: b.config.AddCAPath,
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DownloadCert: b.config.AddCert,
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Clean: b.config.AddClean,
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Force: b.config.AddForce,
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Insecure: b.config.AddInsecure,
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Provider: b.config.Provider,
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SourceBox: b.config.SourceBox,
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BoxName: b.config.BoxName,
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GlobalID: b.config.GlobalID,
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SkipAdd: b.config.SkipAdd,
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},
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&StepUp{
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TeardownMethod: b.config.TeardownMethod,
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Provider: b.config.Provider,
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GlobalID: b.config.GlobalID,
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},
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&StepSSHConfig{
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b.config.GlobalID,
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},
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&communicator.StepConnect{
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Config: &b.config.SSHConfig.Comm,
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Host: CommHost(),
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SSHConfig: b.config.SSHConfig.Comm.SSHConfigFunc(),
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},
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new(common.StepProvision),
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&StepPackage{
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SkipPackage: b.config.SkipPackage,
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Include: b.config.PackageInclude,
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Vagrantfile: b.config.OutputVagrantfile,
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GlobalID: b.config.GlobalID,
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})
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// Run the steps.
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b.runner = common.NewRunnerWithPauseFn(steps, b.config.PackerConfig, ui, state)
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b.runner.Run(ctx, state)
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// Report any errors.
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if rawErr, ok := state.GetOk("error"); ok {
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return nil, rawErr.(error)
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}
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// If we were interrupted or cancelled, then just exit.
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if _, ok := state.GetOk(multistep.StateCancelled); ok {
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return nil, errors.New("Build was cancelled.")
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}
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if _, ok := state.GetOk(multistep.StateHalted); ok {
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return nil, errors.New("Build was halted.")
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}
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return NewArtifact(b.config.Provider, b.config.OutputDir), nil
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}
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// Cancel.
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