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package packerbuilderdata
import "github.com/hashicorp/packer/packer-plugin-sdk/multistep"
// This is used in the BasicPlaceholderData() func in the packer/provisioner.go
// To force users to access generated data via the "generated" func.
const PlaceholderMsg = "To set this dynamically in the Packer template, " +
"you must use the `build` function"
// GeneratedData manages variables created and exported by a builder after
// it starts, so that provisioners and post-processors can have access to
// build data generated at runtime -- for example, instance ID or instance IP
// address. Internally, it uses the builder's multistep.StateBag. The user
// must make sure that the State field is not is not nil before calling Put().
type GeneratedData struct {
// The builder's StateBag
State multistep.StateBag
}
func (gd *GeneratedData) Put(key string, data interface{}) {
genData := make(map[string]interface{})
if _, ok := gd.State.GetOk("generated_data"); ok {
genData = gd.State.Get("generated_data").(map[string]interface{})
}
genData[key] = data
gd.State.Put("generated_data", genData)
}
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