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kube-fledged is a kubernetes operator for creating and managing a cache of container images directly on the worker nodes of a Kubernetes cluster. It allows a user to define a list of images and onto which worker nodes those images should be cached (i.e. pulled). As a result, application pods start almost instantly, since the images need not be pulled from the registry. kube-fledged provides CRUD APIs to manage the lifecycle of the image cache, and supports several configurable parameters to customize the functioning as per one's needs.
Features
- Applications that require rapid start-up and/or scaling. For e.g. an application performing real-time data processing needs to scale rapidly due to a burst in data volume
- Serverless Functions typically need to react immediately to incoming events and spin-up containers within fraction of a second
- IoT applications that run on Edge devices, that need to tolerate the intermittent network connectivity between the edge device and image registry
- If images need to be pulled from a private registry and everyone cannot be granted access to pull images from this registry, then the images can be made available on the nodes of the cluster
- If a cluster administrator or operator needs to roll-out upgrades to an application and wants to verify before-hand if the new images can be pulled successfully
- A functioning kubernetes cluster. It could be a simple development cluster like minikube or a large production cluster
Project Samples
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Container ManagementLicense
Apache License V2.0Follow kube-fledged
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