48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
package taskrunner
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import (
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"context"
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"fmt"
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log "github.com/hashicorp/go-hclog"
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"github.com/hashicorp/nomad/client/allocrunner/getter"
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"github.com/hashicorp/nomad/client/allocrunnerv2/interfaces"
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ti "github.com/hashicorp/nomad/client/allocrunnerv2/taskrunner/interfaces"
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"github.com/hashicorp/nomad/nomad/structs"
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)
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// artifactHook downloads artifacts for a task.
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type artifactHook struct {
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eventEmitter ti.EventEmitter
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logger log.Logger
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}
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func newArtifactHook(e ti.EventEmitter, logger log.Logger) *artifactHook {
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h := &artifactHook{
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eventEmitter: e,
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}
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h.logger = logger.Named(h.Name())
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return h
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}
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func (*artifactHook) Name() string {
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return "artifacts"
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}
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func (h *artifactHook) Prestart(ctx context.Context, req *interfaces.TaskPrestartRequest, resp *interfaces.TaskPrestartResponse) error {
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h.eventEmitter.EmitEvent(structs.NewTaskEvent(structs.TaskDownloadingArtifacts))
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for _, artifact := range req.Task.Artifacts {
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//XXX add ctx to GetArtifact to allow cancelling long downloads
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if err := getter.GetArtifact(req.TaskEnv, artifact, req.TaskDir); err != nil {
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wrapped := fmt.Errorf("failed to download artifact %q: %v", artifact.GetterSource, err)
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h.logger.Debug(wrapped.Error())
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h.eventEmitter.EmitEvent(structs.NewTaskEvent(structs.TaskArtifactDownloadFailed).SetDownloadError(wrapped))
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return wrapped
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}
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}
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resp.Done = true
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return nil
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}
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