131 lines
3.1 KiB
Go
131 lines
3.1 KiB
Go
// The digitalocean package contains a packer.Builder implementation
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// that builds DigitalOcean images (snapshots).
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package digitalocean
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import (
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"context"
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"fmt"
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"log"
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"net/url"
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"github.com/digitalocean/godo"
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"github.com/hashicorp/packer/common"
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"github.com/hashicorp/packer/helper/communicator"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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"golang.org/x/oauth2"
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)
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// The unique id for the builder
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const BuilderId = "pearkes.digitalocean"
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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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func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
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c, warnings, errs := NewConfig(raws...)
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if errs != nil {
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return warnings, errs
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}
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b.config = *c
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return nil, nil
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}
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func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
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client := godo.NewClient(oauth2.NewClient(oauth2.NoContext, &apiTokenSource{
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AccessToken: b.config.APIToken,
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}))
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if b.config.APIURL != "" {
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u, err := url.Parse(b.config.APIURL)
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if err != nil {
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return nil, fmt.Errorf("DigitalOcean: Invalid API URL, %s.", err)
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}
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client.BaseURL = u
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}
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if len(b.config.SnapshotRegions) > 0 {
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opt := &godo.ListOptions{
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Page: 1,
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PerPage: 200,
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}
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regions, _, err := client.Regions.List(context.TODO(), opt)
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if err != nil {
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return nil, fmt.Errorf("DigitalOcean: Unable to get regions, %s", err)
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}
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validRegions := make(map[string]struct{})
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for _, val := range regions {
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validRegions[val.Slug] = struct{}{}
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}
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for _, region := range append(b.config.SnapshotRegions, b.config.Region) {
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if _, ok := validRegions[region]; !ok {
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return nil, fmt.Errorf("DigitalOcean: Invalid region, %s", region)
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}
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}
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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("client", client)
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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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&stepCreateSSHKey{
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Debug: b.config.PackerDebug,
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DebugKeyPath: fmt.Sprintf("do_%s.pem", b.config.PackerBuildName),
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},
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new(stepCreateDroplet),
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new(stepDropletInfo),
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&communicator.StepConnect{
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Config: &b.config.Comm,
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Host: commHost,
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SSHConfig: b.config.Comm.SSHConfigFunc(),
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},
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new(common.StepProvision),
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&common.StepCleanupTempKeys{
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Comm: &b.config.Comm,
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},
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new(stepShutdown),
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new(stepPowerOff),
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new(stepSnapshot),
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}
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// Run the steps
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b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)
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b.runner.Run(state)
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// If there was an error, return that
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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 _, ok := state.GetOk("snapshot_name"); !ok {
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log.Println("Failed to find snapshot_name in state. Bug?")
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return nil, nil
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}
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artifact := &Artifact{
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SnapshotName: state.Get("snapshot_name").(string),
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SnapshotId: state.Get("snapshot_image_id").(int),
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RegionNames: state.Get("regions").([]string),
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Client: client,
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}
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return artifact, nil
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}
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func (b *Builder) Cancel() {
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if b.runner != nil {
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log.Println("Cancelling the step runner...")
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b.runner.Cancel()
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}
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}
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