CONTROLPLANE QUIT APPLICATION HOW TO
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👍 CheapĪs a consequence of the above point, fewer clusters are usually cheaper, because the resource overhead with larger numbers of clusters costs money. If you have only a single cluster, you can reuse these services for all your workloads, and you don't need to have multiple copies of them for multiple clusters. This includes, for example, the master nodes - a Kubernetes cluster typically has 3 master nodes, and if you have only a single cluster, you need only 3 master nodes in total (compared to 30 master nodes if you have 10 Kubernetes clusters).īut this also includes other cluster-wide services, such as load balancers, Ingress controllers, authentication, logging, and monitoring. If you have only one Kubernetes cluster, you need to have only one copy of all the resources that are needed to run and manage a Kubernetes cluster.

Let's look at the pros and cons of this approach. Kubernetes provides namespaces to logically separate portions of a cluster from each other, and in the above case, you could use a separate namespace for each application instance. With this approach, the cluster is used like general-purpose infrastructure platform - whatever you need to run, you deploy it to your existing Kubernetes cluster. The first option is to run all your workloads in the same cluster: In general, a cluster can be defined 'larger' than another if it contains a larger sum of nodes and Pods - for example, a cluster with 10 nodes and 100 Pods is larger than a cluster with 1 node and 10 Pods. The first two approaches are the extremes on the scale from few large to many small clusters, as shown below:

CONTROLPLANE QUIT APPLICATION HOW TO

Or should you use a combination of the above?Īll of these are valid approaches - Kubernetes is a flexible system and it doesn't dictate you how to use it!.

Or should you have a separate cluster for each application instance?.

Should you run all application instances on a single cluster?.

In a microservices application, an application instance would consist of all the microservices.Īs a Kubernetes user, this raises some questions: Note that an application instance may consist of multiple components, such as the frontend, backend, database, etc. In the above example, there are 3 applications and 3 environments, which results in 9 application instances.Įach application instance is a self-contained deployment unit that can be operated and independently from the others. This results in a 'matrix' of applications and environments:

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The problemĪs a software creator, you typically develop and operate multiple applications.įurthermore, you typically run multiple instances of these applications in different environments - for example, you might have a dev, test, and prod environment.

This article gets to the bottom of this question and analyses the pros and cons of some of the options you have. If you use Kubernetes as the operational platform for your applications, you are confronted with some fundamental questions about the way you use clusters: Here's a table that summarises the pros and cons of various approaches:

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To stop and restart any or all of your installed packages simply navigate to the web-based interface of your Synology NAS and select the shortcut for the Package Center (either on the desktop or within the full application menu, accessible from the menu button on top toolbar).TL DR: you can run a given set of workloads either on few large clusters (with many workloads in each cluster) or on many clusters (with few workloads in each cluster). RELATED: The Best NAS (Network Attached Storage) Devices of 2022 An always-on home server loses a lot of its usefulness if you need to go manually turn on the backup, photo, or music services, after all. Temporarily stopping it to avoid strain on the disk(s) is an appropriate action.Īs a general rule, however, you’ll get the most utility out of your Synology NAS if you leave all your installed packages running.

An application package reads or writes to a disk you’re troubleshooting.

Stopping it during long spells of disuse is an appropriate action.

An application package is resource heavy and infrequently used.

Restarting it is an appropriate troubleshooting action.

An application package is malfunctioning in some way.

Controlplane quit application