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api: Centralize defaults and add InsertDefaults flag #1744
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package defaults | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/docker/swarmkit/api" | ||
| "github.com/docker/swarmkit/api/deepcopy" | ||
| gogotypes "github.com/gogo/protobuf/types" | ||
| ) | ||
|
|
||
| // Service is a ServiceSpec object with all fields filled in using default | ||
| // values. | ||
| var Service = api.ServiceSpec{ | ||
| Task: api.TaskSpec{ | ||
| Runtime: &api.TaskSpec_Container{ | ||
| Container: &api.ContainerSpec{ | ||
| StopGracePeriod: gogotypes.DurationProto(10 * time.Second), | ||
| PullOptions: &api.ContainerSpec_PullOptions{}, | ||
| DNSConfig: &api.ContainerSpec_DNSConfig{}, | ||
| }, | ||
| }, | ||
| Resources: &api.ResourceRequirements{}, | ||
| Restart: &api.RestartPolicy{ | ||
| Delay: gogotypes.DurationProto(5 * time.Second), | ||
| }, | ||
| Placement: &api.Placement{}, | ||
| }, | ||
| Update: &api.UpdateConfig{ | ||
| FailureAction: api.UpdateConfig_PAUSE, | ||
| Monitor: gogotypes.DurationProto(5 * time.Second), | ||
| Parallelism: 1, | ||
| Order: api.UpdateConfig_STOP_FIRST, | ||
| }, | ||
| } | ||
|
|
||
| // InterpolateService returns a ServiceSpec based on the provided spec, which | ||
| // has all unspecified values filled in with default values. | ||
| func InterpolateService(origSpec *api.ServiceSpec) *api.ServiceSpec { | ||
| spec := origSpec.Copy() | ||
|
|
||
| container := spec.Task.GetContainer() | ||
| defaultContainer := Service.Task.GetContainer() | ||
| if container != nil { | ||
| if container.StopGracePeriod == nil { | ||
| container.StopGracePeriod = &gogotypes.Duration{} | ||
| deepcopy.Copy(container.StopGracePeriod, defaultContainer.StopGracePeriod) | ||
| } | ||
| if container.PullOptions == nil { | ||
| container.PullOptions = defaultContainer.PullOptions.Copy() | ||
| } | ||
| if container.DNSConfig == nil { | ||
| container.DNSConfig = defaultContainer.DNSConfig.Copy() | ||
| } | ||
| } | ||
|
|
||
| if spec.Task.Resources == nil { | ||
| spec.Task.Resources = Service.Task.Resources.Copy() | ||
| } | ||
|
|
||
| if spec.Task.Restart == nil { | ||
| spec.Task.Restart = Service.Task.Restart.Copy() | ||
| } else { | ||
| if spec.Task.Restart.Delay == nil { | ||
| spec.Task.Restart.Delay = &gogotypes.Duration{} | ||
| deepcopy.Copy(spec.Task.Restart.Delay, Service.Task.Restart.Delay) | ||
| } | ||
| } | ||
|
|
||
| if spec.Task.Placement == nil { | ||
| spec.Task.Placement = Service.Task.Placement.Copy() | ||
| } | ||
|
|
||
| if spec.Update == nil { | ||
| spec.Update = Service.Update.Copy() | ||
| } else { | ||
| if spec.Update.Monitor == nil { | ||
| spec.Update.Monitor = &gogotypes.Duration{} | ||
| deepcopy.Copy(spec.Update.Monitor, Service.Update.Monitor) | ||
| } | ||
| } | ||
|
|
||
| return spec | ||
| } | ||
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There are more parameters like parallelism, update-delay, etc.
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The default value of
UpdateDelayis 0, so it's not necessary to include it here. You're right thatParallelismshould be included. It used to default to 0, but now defaults to 1. Fixing.