{"id":428,"date":"2025-11-21T07:49:45","date_gmt":"2025-11-21T07:49:45","guid":{"rendered":"https:\/\/blog.ngocha.biz\/?p=428"},"modified":"2025-11-21T07:49:45","modified_gmt":"2025-11-21T07:49:45","slug":"setup-rancher-on-kubernetes-cluster","status":"publish","type":"post","link":"https:\/\/blog.ngocha.biz\/?p=428","title":{"rendered":"Setup Rancher on Kubernetes Cluster"},"content":{"rendered":"

In this blog, you will learn to set up Rancher on your Kubernetes cluster to manage your multiple Kubernetes clusters.<\/p>\n

By the end of this blog, you will have learned.<\/p>\n

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  1. Understand key Rancher features<\/li>\n
  2. The installation of Rancher on Kubernetes<\/li>\n
  3. Adding Kubernetes clusters on Rancher<\/li>\n<\/ol>\n

    What is Rancher?<\/h2>\n

    Lest say you are working in a project that runs applications on Kubernetes. <\/p>\n

    At first, you might have just one Kubernetes cluster. But as the project grows, you may have clusters in different environments for development, testing, and production<\/p>\n

    Also, you might have clusters spread across different cloud providers (AWS, Azure, Google Cloud) for multi-cloud strategy. Some clusters might be running in your own data centers.<\/p>\n

    Now, how do you manage all these clusters? How do you plan the upgrades? How do you enforce security policies for all the clusters?<\/p>\n

    Well, here is where Rancher comes in to play.<\/p>\n

    Rancher<\/a> is a free management platform that acts as a “control center” for all your Kubernetes clusters. You can manage all your clusters from a single interface, whether they are in AWS, Azure, on-premises, or at the edge.<\/p>\n

    When we say Rancher helps “manage” clusters, here is what you can actually do with it.<\/p>\n

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    1. Cluster Operations: <\/strong>You can create a new Kubernetes cluster<\/a> with a few clicks. You can connect clusters you already have running anywhere. You can even safely upgrade kubernetes versions<\/a> across all clusters without downtime.<\/li>\n
    2. Application Management: <\/strong>You can deploy apps to any cluster from a catalog (like an app store for Kubernetes). Also you can move, update applications across multiple clusters simultaneously.<\/li>\n
    3. Security & Compliance:<\/strong> You can create security policies like “no containers can run as root user<\/a>“. You can also scan for vulnerabilities<\/a> in your running containers.<\/li>\n
    4. Day-to-Day Operations:<\/strong> You can view logs from all your applications in one place. Also, you can debug pods<\/a> by performing SSH into containers without complex kubectl commands.<\/li>\n<\/ol>\n

      Now that you have a high level idea of what Rancher is, lets get our hands dirty with a practical setup. So that it will all make sense for you.<\/p>\n

      Prerequisites<\/h2>\n