44 lines
988 B
Go
44 lines
988 B
Go
package packer
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import (
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"context"
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"fmt"
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"time"
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)
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// TimeoutProvisioner is a Provisioner implementation that can timeout after a
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// duration
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type TimeoutProvisioner struct {
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Provisioner
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Timeout time.Duration
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}
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func (p *TimeoutProvisioner) Provision(ctx context.Context, ui Ui, comm Communicator, generatedData map[string]interface{}) error {
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ctx, cancel := context.WithTimeout(ctx, p.Timeout)
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defer cancel()
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// Use a select to determine if we get cancelled during the wait
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ui.Say(fmt.Sprintf("Setting a %s timeout for the next provisioner...", p.Timeout))
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errC := make(chan interface{})
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go func() {
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select {
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case <-errC:
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// all good
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case <-ctx.Done():
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switch ctx.Err() {
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case context.DeadlineExceeded:
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ui.Error("Cancelling provisioner after a timeout...")
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default:
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// the context also gets cancelled when the provisioner is
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// successful
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}
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}
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}()
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err := p.Provisioner.Provision(ctx, ui, comm, generatedData)
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close(errC)
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return err
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}
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