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It is hard to keep the top rating in Udemy for various reasons however this course stay strong with 4.53* rating, 3,448 students.

It teaches you about Docker, Podman, OCI Containers, Kubernetes primitives with 5 demos (Docker, Podman, AWS EKS, AKS and GKE).

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Good luck in your Container Journey!

Many enterprises adopting Kubernetes realize that Kubernetes is the first step to build a Cloud Native application.

Seven business reasons for adopting Kubernetes:

* Speed to Market
* Road to Digital Transformation using portable Containers
* Improved app development deployment using Infrastructure as Code methodologies
* Cost optimization
* Scalability, Availability and other ‘lities’
* MultiCloud, Hybrid Cloud and On-Premise
* Seamless migration to Cloud

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Kubernetes cluster is a set of nodes for running your containerized applications.

Every Kubernetes cluster will have at least 1 master node and 1 worker node. The master node is responsible for maintaining the overall cluster in a desired state based on the configuration, and worker node runs the containerized applications.

Key Advantages of Kubernetes cluster:
• Schedule and host containers across a group of physical or virtual machines in On-premises or Cloud
• Containers in Kubernetes are not tied to individual machines
• Scale horizontally

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How to mitigate the risks and vulnerabilities associated with transitioning into a Container architecture by using one of the fastest open-source orchestration tool, Kubernetes (K8S)?

Few recommendations:

1. Image used in building the containers has to be updated, for latest security patches.

2. Container Image registry has to be kept in the private network and enable monitoring to ensure that host server of the registry is secure.

3. Container Run Time has to be monitored for application security.

4. K8S has RBAC capabilities; Hence controls should be imposed on users.

5. Harden the OS.

K8S provides security advantages, like application containers are not patched— instead, container images are replaced entirely with new versions. This immutability feature enables strict version control and permits rapid rollbacks if a vulnerability is found in the new version of the code.

Hence, it’s best to invest time and effort to learn K8S Security.

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What is Red Hat OpenShift?

Red Hat OpenShift is a COTS Kubernetes product aimed at enhancing the better experience of Kubernetes for developers and operational teams to host their Containerized applications.

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https://www.linkedin.com/pulse/red-hat-openshift-lawrence-manickam-1c

RED HAT OPENSHIFT In twenties, it was not hard to choose a hosting platform for an application. It was either BEA WebLogic or IBM WebSphere or NET.