86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package dockersave
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import (
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"fmt"
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"os"
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"github.com/hashicorp/packer/builder/docker"
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"github.com/hashicorp/packer/common"
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"github.com/hashicorp/packer/helper/config"
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"github.com/hashicorp/packer/packer"
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"github.com/hashicorp/packer/post-processor/docker-import"
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"github.com/hashicorp/packer/post-processor/docker-tag"
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"github.com/hashicorp/packer/template/interpolate"
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)
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const BuilderId = "packer.post-processor.docker-save"
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type Config struct {
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common.PackerConfig `mapstructure:",squash"`
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Path string `mapstructure:"path"`
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ctx interpolate.Context
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}
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type PostProcessor struct {
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Driver docker.Driver
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config Config
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}
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func (p *PostProcessor) Configure(raws ...interface{}) error {
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err := config.Decode(&p.config, &config.DecodeOpts{
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Interpolate: true,
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InterpolateContext: &p.config.ctx,
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InterpolateFilter: &interpolate.RenderFilter{
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Exclude: []string{},
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},
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}, raws...)
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if err != nil {
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return err
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}
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return nil
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}
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func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, bool, error) {
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if artifact.BuilderId() != dockerimport.BuilderId &&
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artifact.BuilderId() != dockertag.BuilderId {
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err := fmt.Errorf(
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"Unknown artifact type: %s\nCan only save Docker builder artifacts.",
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artifact.BuilderId())
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return nil, false, err
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}
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path := p.config.Path
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// Open the file that we're going to write to
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f, err := os.Create(path)
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if err != nil {
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err := fmt.Errorf("Error creating output file: %s", err)
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return nil, false, err
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}
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driver := p.Driver
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if driver == nil {
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// If no driver is set, then we use the real driver
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driver = &docker.DockerDriver{Ctx: &p.config.ctx, Ui: ui}
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}
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ui.Message("Saving image: " + artifact.Id())
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if err := driver.SaveImage(artifact.Id(), f); err != nil {
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f.Close()
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os.Remove(f.Name())
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return nil, false, err
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}
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f.Close()
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ui.Message("Saved to: " + path)
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return artifact, true, nil
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}
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