How to Manage Hundreds of Kubernetes clusters ???

Managing Kubernetes clusters in production is important for DevOps Engineers.

- DevOps Engineers are responsible for the creation, upgrade, configuration, and deletion of Kubernetes clusters.

- Popular local Kubernetes setups like Minikube and K3s are meant for development environments and should not be used in production.

Kubernetes distributions are important for managing clusters in production

- Kubernetes distributions are like enhanced versions of the open-source Kubernetes platform

- Different distributions like Amazon Linux and Ubuntu have their own enhancements and wrappers on top of Kubernetes

Choose a supported Kubernetes distribution for instant support.

- Kubernetes itself is an open-source software without managed or distributed support.

- Popular supported distributions include Amazon EKS, Red Hat OpenShift, and others.

Organizations use Kubernetes on production but also utilize Kubernetes systems for local testing and initial software testing

- In pre-production stages, Kubernetes systems are used for local testing or testing applications instead of creating EKS clusters

- Enterprises can directly use Kubernetes on production if they don't have stringent timelines for issue resolution

KOPS is a widely used tool for managing hundreds of Kubernetes clusters.

- KOPS is a tool that simplifies the lifecycle management of Kubernetes clusters for DevOps engineers.

- It handles installation, upgrades, modifications, and deletion of clusters.

Using KOPS to manage Kubernetes clusters

- KOPS provides ansible playbooks for installing OpenShift platform, but a Red Hat subscription is required

- KOPS allows for managing Kubernetes systems on the environment

Install KOPS and configure AWS user

- GitHub document just get the repositories, perform APT update and install required dependencies

- Grant AWS CLI IM user with specific permissions and configure access key and secret access key

Creating an S3 bucket for storing configuration is a prerequisite for managing Kubernetes clusters with KOPS.

- Admin user or IM user with full access to S3, IM, and VPC permissions is required.

- Use 'AWS configure' to set up the admin user credentials and create the bucket using 'S3 create bucket' command.

Configuring custom and local domains for Kubernetes cluster.

- Purchase a domain from a certification authority or use a local domain like dot.k8.local.

- Use Route 53 to configure the purchased domain or local domain for the Kubernetes cluster.

Learn how to manage systems using mini Cube and AWS

- Install mini cube by following the instructions in the video

- If you have free AWS points, you can also try managing systems on AWS