github.com/rothwerx/packer@v0.9.0/builder/digitalocean/config.go (about)

     1  package digitalocean
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"os"
     7  	"time"
     8  
     9  	"github.com/mitchellh/mapstructure"
    10  	"github.com/mitchellh/packer/common"
    11  	"github.com/mitchellh/packer/common/uuid"
    12  	"github.com/mitchellh/packer/helper/communicator"
    13  	"github.com/mitchellh/packer/helper/config"
    14  	"github.com/mitchellh/packer/packer"
    15  	"github.com/mitchellh/packer/template/interpolate"
    16  )
    17  
    18  type Config struct {
    19  	common.PackerConfig `mapstructure:",squash"`
    20  	Comm                communicator.Config `mapstructure:",squash"`
    21  
    22  	APIToken string `mapstructure:"api_token"`
    23  	APIURL   string `mapstructure:"api_url"`
    24  
    25  	Region string `mapstructure:"region"`
    26  	Size   string `mapstructure:"size"`
    27  	Image  string `mapstructure:"image"`
    28  
    29  	PrivateNetworking bool          `mapstructure:"private_networking"`
    30  	SnapshotName      string        `mapstructure:"snapshot_name"`
    31  	StateTimeout      time.Duration `mapstructure:"state_timeout"`
    32  	DropletName       string        `mapstructure:"droplet_name"`
    33  	UserData          string        `mapstructure:"user_data"`
    34  
    35  	ctx interpolate.Context
    36  }
    37  
    38  func NewConfig(raws ...interface{}) (*Config, []string, error) {
    39  	c := new(Config)
    40  
    41  	var md mapstructure.Metadata
    42  	err := config.Decode(c, &config.DecodeOpts{
    43  		Metadata:           &md,
    44  		Interpolate:        true,
    45  		InterpolateContext: &c.ctx,
    46  		InterpolateFilter: &interpolate.RenderFilter{
    47  			Exclude: []string{
    48  				"run_command",
    49  			},
    50  		},
    51  	}, raws...)
    52  	if err != nil {
    53  		return nil, nil, err
    54  	}
    55  
    56  	// Defaults
    57  	if c.APIToken == "" {
    58  		// Default to environment variable for api_token, if it exists
    59  		c.APIToken = os.Getenv("DIGITALOCEAN_API_TOKEN")
    60  	}
    61  	if c.APIURL == "" {
    62  		c.APIURL = os.Getenv("DIGITALOCEAN_API_URL")
    63  	}
    64  	if c.SnapshotName == "" {
    65  		def, err := interpolate.Render("packer-{{timestamp}}", nil)
    66  		if err != nil {
    67  			panic(err)
    68  		}
    69  
    70  		// Default to packer-{{ unix timestamp (utc) }}
    71  		c.SnapshotName = def
    72  	}
    73  
    74  	if c.DropletName == "" {
    75  		// Default to packer-[time-ordered-uuid]
    76  		c.DropletName = fmt.Sprintf("packer-%s", uuid.TimeOrderedUUID())
    77  	}
    78  
    79  	if c.Comm.SSHUsername == "" {
    80  		// Default to "root". You can override this if your
    81  		// SourceImage has a different user account then the DO default
    82  		c.Comm.SSHUsername = "root"
    83  	}
    84  
    85  	if c.StateTimeout == 0 {
    86  		// Default to 6 minute timeouts waiting for
    87  		// desired state. i.e waiting for droplet to become active
    88  		c.StateTimeout = 6 * time.Minute
    89  	}
    90  
    91  	var errs *packer.MultiError
    92  	if es := c.Comm.Prepare(&c.ctx); len(es) > 0 {
    93  		errs = packer.MultiErrorAppend(errs, es...)
    94  	}
    95  	if c.APIToken == "" {
    96  		// Required configurations that will display errors if not set
    97  		errs = packer.MultiErrorAppend(
    98  			errs, errors.New("api_token for auth must be specified"))
    99  	}
   100  
   101  	if c.Region == "" {
   102  		errs = packer.MultiErrorAppend(
   103  			errs, errors.New("region is required"))
   104  	}
   105  
   106  	if c.Size == "" {
   107  		errs = packer.MultiErrorAppend(
   108  			errs, errors.New("size is required"))
   109  	}
   110  
   111  	if c.Image == "" {
   112  		errs = packer.MultiErrorAppend(
   113  			errs, errors.New("image is required"))
   114  	}
   115  
   116  	if errs != nil && len(errs.Errors) > 0 {
   117  		return nil, nil, errs
   118  	}
   119  
   120  	common.ScrubConfig(c, c.APIToken)
   121  	return c, nil, nil
   122  }