56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
package digitalocean
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import (
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"fmt"
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"log"
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"time"
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)
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// waitForState simply blocks until the droplet is in
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// a state we expect, while eventually timing out.
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func waitForDropletState(desiredState string, dropletId uint, client DigitalOceanClient, timeout time.Duration) error {
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done := make(chan struct{})
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defer close(done)
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result := make(chan error, 1)
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go func() {
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attempts := 0
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for {
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attempts += 1
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log.Printf("Checking droplet status... (attempt: %d)", attempts)
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_, status, err := client.DropletStatus(dropletId)
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if err != nil {
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result <- err
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return
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}
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if status == desiredState {
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result <- nil
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return
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}
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// Wait 3 seconds in between
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time.Sleep(3 * time.Second)
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// Verify we shouldn't exit
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select {
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case <-done:
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// We finished, so just exit the goroutine
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return
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default:
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// Keep going
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}
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}
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}()
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log.Printf("Waiting for up to %d seconds for droplet to become %s", timeout/time.Second, desiredState)
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select {
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case err := <-result:
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return err
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case <-time.After(timeout):
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err := fmt.Errorf("Timeout while waiting to for droplet to become '%s'", desiredState)
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return err
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}
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}
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