Creating a FleetAllocation allocated a GameServer from a Fleet #193
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markmandel
commented
May 1, 2018
| @@ -169,7 +168,7 @@ func (c *Controller) syncFleet(key string) error { | |||
| return errors.Wrapf(err, "error retrieving fleet %s from namespace %s", name, namespace) | |||
| } | |||
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| list, err := c.listGameServerSets(fleet) | |||
| list, err := ListGameServerSetsByFleetOwner(c.gameServerSetLister, fleet) | |||
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@enocom would love to get your opinion on this refactor (implementation here)
There were several places I needed a list type function like this, and wasn't quite sure the best way to do it.
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Build Succeeded 👏 Build Id: 44021edf-184a-4e67-9594-49089cee089c The following development artifacts have been built, and will exist for the next 30 days:
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EricFortin
reviewed
May 1, 2018
| } | ||
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| // Validateupdate validates when an update occurs | ||
| func (fa *FleetAllocation) Validateupdate(new *FleetAllocation) (bool, []metav1.StatusCause) { |
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Nitpick: ValidateUpdate
EricFortin
reviewed
May 1, 2018
pkg/fleetallocation/controller.go
Outdated
| ErrNoGameServerReady = errors.New("Could not find a Ready GameServer") | ||
| ) | ||
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| // Controller is a the GameServerSet controller |
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FleetAllocation controller
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LGTM! |
enocom
reviewed
May 1, 2018
| // ListGameServerSetsByFleetOwner lists all the GameServerSets for a given | ||
| // Fleet | ||
| func ListGameServerSetsByFleetOwner(gameServerSetLister listerv1alpha1.GameServerSetLister, f *stablev1alpha1.Fleet) ([]*stablev1alpha1.GameServerSet, error) { | ||
| list, err := gameServerSetLister.List(labels.SelectorFromSet(labels.Set{stablev1alpha1.FleetGameServerSetLabel: f.ObjectMeta.Name})) |
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Based on a cursory reading of the code, I think you could even replace the concrete type *stablev1alpha1.Fleet with a metav1.Object interface. This way, the ListGameServerSetsByFleetOwner function might enjoy an even wider usage.
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If you use the metav1.Object interface here, then the name lookup becomes f.GetName() as with the lookup below.
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So I personally wasn't concerned with the type - since in this case, I really only want Fleets to be passed in. So using a Fleet as the type signature makes sense, at least in my mind - it should be restrictive.
I guess my concern was more around passing in the Lister to the function as an argument (rather than somehow creating another data structure with methods). This felt more lightweight, but was wondering if you saw any issues there?
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I've seen that pattern in some object-oriented code, but I'm having a hard time remembering what the pattern might be called. It seems entirely reasonable to me.
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SGTM! Thanks for the sanity check.
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I think it's basically a form of double dispatch.
This implements the FleetAllocation CRD, that when created looks at the requested Fleet, and marks one of the GameServers as Allocated (if available) and returns it's value in the FleetAllocation. This also includes a quickstart and spec for reference as well. Some refactoring was included in the PR (probably should have been a seperate PR for that).
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Build Succeeded 👏 Build Id: f4ab7fcb-c6b8-46c2-982a-42ad32ea92b4 The following development artifacts have been built, and will exist for the next 30 days:
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EricFortin
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May 2, 2018
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Build Failed 😱 Build Id: 1c628f59-78a4-42f7-b8d7-23c553eebd76 Build Logs |
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This implements the FleetAllocation CRD, that when created looks at the requested Fleet, and marks one of the GameServers as Allocated (if available) and returns it's value in the FleetAllocation.
This also includes a quickstart and spec for reference as well.
Some refactoring was included in the PR (probably should have been a seperate PR for that).