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Time out after five minutes of not reaching desired container count

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This commit is contained in:
Frederik Ring 2024-01-27 19:42:21 +01:00
parent 26bbc66cd5
commit 2bc94d8a5b
1 changed files with 25 additions and 13 deletions
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38
cmd/backup/docker.go
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@ -42,22 +42,34 @@ func scaleService(cli *client.Client, serviceID string, replicas uint64) ([]stri
} }
func awaitContainerCountForService(cli *client.Client, serviceID string, count int) error { func awaitContainerCountForService(cli *client.Client, serviceID string, count int) error {
poll := time.NewTicker(time.Second)
timeout := time.NewTicker(5 * time.Minute)
defer timeout.Stop()
defer poll.Stop()
for { for {
containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{ select {
Filters: filters.NewArgs(filters.KeyValuePair{ case <-timeout.C:
Key: "label", return fmt.Errorf(
Value: fmt.Sprintf("com.docker.swarm.service.id=%s", serviceID), "awaitContainerCount: timed out after waiting 5 minutes for service %s to reach desired container count of %d",
}), serviceID,
}) count,
if err != nil { )
return fmt.Errorf("awaitContainerCount: error listing containers: %w", err) case <-poll.C:
containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{
Filters: filters.NewArgs(filters.KeyValuePair{
Key: "label",
Value: fmt.Sprintf("com.docker.swarm.service.id=%s", serviceID),
}),
})
if err != nil {
return fmt.Errorf("awaitContainerCount: error listing containers: %w", err)
}
if len(containers) == count {
return nil
}
} }
if len(containers) == count {
break
}
time.Sleep(time.Second)
} }
return nil
} }
// stopContainersAndServices stops all Docker containers that are marked as to being // stopContainersAndServices stops all Docker containers that are marked as to being