github.com/mmcquillan/packer@v1.1.1-0.20171009221028-c85cf0483a5d/builder/oneandone/builder.go (about)

     1  package oneandone
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"github.com/hashicorp/packer/common"
     7  	"github.com/hashicorp/packer/helper/communicator"
     8  	"github.com/hashicorp/packer/packer"
     9  	"github.com/mitchellh/multistep"
    10  	"log"
    11  )
    12  
    13  const BuilderId = "packer.oneandone"
    14  
    15  type Builder struct {
    16  	config *Config
    17  	runner multistep.Runner
    18  }
    19  
    20  func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
    21  	c, warnings, errs := NewConfig(raws...)
    22  	if errs != nil {
    23  		return warnings, errs
    24  	}
    25  	b.config = c
    26  
    27  	return warnings, nil
    28  }
    29  
    30  func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
    31  
    32  	state := new(multistep.BasicStateBag)
    33  
    34  	state.Put("config", b.config)
    35  	state.Put("hook", hook)
    36  	state.Put("ui", ui)
    37  
    38  	steps := []multistep.Step{
    39  		&StepCreateSSHKey{
    40  			Debug:        b.config.PackerDebug,
    41  			DebugKeyPath: fmt.Sprintf("oneandone_%s", b.config.SnapshotName),
    42  		},
    43  		new(stepCreateServer),
    44  		&communicator.StepConnect{
    45  			Config:    &b.config.Comm,
    46  			Host:      commHost,
    47  			SSHConfig: sshConfig,
    48  		},
    49  		&common.StepProvision{},
    50  		new(stepTakeSnapshot),
    51  	}
    52  
    53  	b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)
    54  	b.runner.Run(state)
    55  
    56  	if rawErr, ok := state.GetOk("error"); ok {
    57  		return nil, rawErr.(error)
    58  	}
    59  
    60  	if temp, ok := state.GetOk("snapshot_name"); ok {
    61  		b.config.SnapshotName = temp.(string)
    62  	}
    63  
    64  	artifact := &Artifact{
    65  		snapshotName: b.config.SnapshotName,
    66  	}
    67  
    68  	if id, ok := state.GetOk("snapshot_id"); ok {
    69  		artifact.snapshotId = id.(string)
    70  	} else {
    71  		return nil, errors.New("Image creation has failed.")
    72  	}
    73  
    74  	return artifact, nil
    75  }
    76  
    77  func (b *Builder) Cancel() {
    78  	if b.runner != nil {
    79  		log.Println("Cancelling the step runner...")
    80  		b.runner.Cancel()
    81  	}
    82  }