Add queue controller #128
Add queue controller #128
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hzxuzhonghu
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pkg/apis/helpers/helpers.go
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| @@ -63,7 +63,7 @@ func ControlledBy(obj interface{}, gvk schema.GroupVersionKind) bool { | |||
| return false | |||
| } | |||
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| func CreateConfigMapIfNotExist(job *vkv1.Job, kubeClients *kubernetes.Clientset, data map[string]string, cmName string) error { | |||
| func CreateConfigMapIfNotExist(job *vkv1.Job, kubeClients kubernetes.Interface, data map[string]string, cmName string) error { | |||
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prefer to have seperate PR for such kind of cleanup.
| glog.V(2).Infoln("queue %s has not been seen or deleted") | ||
| return nil | ||
| } | ||
| for pgKey := range c.podGroups[key] { |
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prefer to handle this in Cache: Queue -> Job -> PodGroup.
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I donot want to overlap with job controller. For queue controller, it just care about the podgroups, not care about Job or anything else.
podGroups is keyed by queue name and value is the podgroups that are using this queue.
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pkg/cache is a common component in controller, and we need to clean up jobs when queue was deleted.
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IC, then we need to record jobs too.
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But have a doubt: why would user delete their queues before jobs? Is there a use case? If there is a malicious user who does this, we should not delete the running jobs by any reason.
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For this, I can think of a more simple way to do this: I remember there will be an admission controller to validate queue existence before create jobs. Then we can also set the job's owner reference. Then when the queue is deleted, k8s garbage collector can reclaim all children resources automatically.
So we have two choice:
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do it in controller, need to record all dependents relationship.
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setting ownerreference, do nothing else, leave it to GC.
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Personally prefer not adding this into cache even we need considering deleting jobs when queue deleted.
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setting ownerreference, do nothing else, leave it to GC.
owerReference should be reserved for JobGroup :)
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OwnerReferences is an array, can be more than one.
owerReference should be reserved for JobGroup :)
Sorry, there is no JobGroup now.
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not sure whether GC will check controlled owner reference.
there is no JobGroup now.
so "reserved" it.
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| @@ -72,10 +76,17 @@ func Run(opt *options.ServerOption) error { | |||
| return err | |||
| } | |||
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| jobController := job.NewJobController(config) | |||
| // TODO: add user agent for different controllers | |||
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It is just for http server to know the client identity.
| glog.V(2).Infoln("queue %s has not been seen or deleted") | ||
| return nil | ||
| } | ||
| for pgKey := range c.podGroups[key] { |
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Personally prefer not adding this into cache even we need considering deleting jobs when queue deleted.
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I am adding e2e |
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@hzxuzhonghu please update the cluster role to get appropriate rights to handle queue resource. |
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Thanks |
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/lgtm |
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/approve |
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Add queue controller
fixes: #16