Kubernetes の API Client における キャッシュ設計 / Cache Design in Kubernetes API Client

Go Conference 2019 Spring

Transcript

1. ©2019 Wantedly, Inc. Kubernetes ͷ API Client ʹ͓͚Δ
 Ωϟογϡઃܭ Go Conference 2019 Spring Takayuki Kasai (@unblee) Wantedly, Inc. 2019.5.18 -
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    ʹ͓͚ΔΩϟογϡར༻ func (dc *DeploymentController) syncDeployment(key string) error { namespace, name, err := cache.SplitMetaNamespaceKey(key) deployment, err := dc.dLister.Deployments(namespace).Get(name) d := deployment.DeepCopy() if reflect.DeepEqual(d.Spec.Selector, &everything) { dc.eventRecorder.Eventf(d, v1.EventTypeWarning, "SelectingAll", "This deployment is selecting all pods. A non- empty selector is required.") if d.Status.ObservedGeneration < d.Generation { d.Status.ObservedGeneration = d.Generation dc.client.AppsV1().Deployments(d.Namespace).UpdateStatus(d) } return nil } rsList, err := dc.getReplicaSetsForDeployment(d) podMap, err := dc.getPodMapForDeployment(d, rsList) if getRollbackTo(d) != nil { return dc.rollback(d, rsList) } scalingEvent, err := dc.isScalingEvent(d, rsList) switch d.Spec.Strategy.Type { case apps.RecreateDeploymentStrategyType: return dc.rolloutRecreate(d, rsList, podMap) case apps.RollingUpdateDeploymentStrategyType: return dc.rolloutRolling(d, rsList) } } IUUQTHJUIVCDPNLVCFSOFUFTLVCFSOFUFTCMPCBGGFFCFFCGBFFGFDQLHDPOUSPMMFSEFQMPZNFOUEFQMPZNFOU@DPOUSPMMFSHP--
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