Hi folks, just updating this post with a great video about What is Kubernetes and how it works. I hope you enjoy it!

What is Kubernetes?

Kubernetes (commonly stylized as k8s) is an open-source container-orchestration system for automating computer application deployment, scaling, and management.

It was originally designed by Google and is now maintained by the Cloud Native Computing Foundation. It aims to provide a “platform for automating deployment, scaling, and operations of application containers across clusters of hosts”.

It works with a range of container tools, including Docker. Many cloud services offer a Kubernetes-based platform or infrastructure as a service (PaaS or IaaS) on which Kubernetes can be deployed as a platform-providing service. Many vendors also provide their own branded Kubernetes distributions.

Elements of Kubernetes architecture

In this block, we will briefly cover the elements of Kubernetes architecture:

• Master: main component. It is where the API and the most essential components that manage or group that runs the containers run;
• Nodes: are virtual machines or machines that capture instructions from the Master and then process access to applications;
• Pod: the pods are the smallest unit of this tool and are where the containers run;
• Deployments: Helps control and organize the deployment of the Pods. They can contain information about the environment, mapping volumes and tags;
• Services: is where the executed Pods are organized from tags;
• Kubelet: is a service executed in the headers that reads the manifests from the container, in addition to ensuring that they have been started and are running,
• Kubectl: deals with the Kubernetes command line configuration tool.

Provedores

Some of the cloud providers with Kubernetes support are:

• Amazon Elastic Kubernetes Service - EKS
• Google Kubernetes Engine
• Azure Kubernetes Service - AKS
• Other cloud providers includes: IBM, CloudStack and others

Kubernetes courses and training

In this brief section, I also would like to share some training courses about kubernetes:

• Kubernetes for Developers: Moving to the Cloud

• Using Kubernetes as a Developer

• Certified Kubernetes Application Developer (CKAD)

• Kubernetes for Developers: Core Concepts

• Kubernetes for Developers: Integrating Volumes and Using Multi-container Pods

• Kubernetes for Developers: Moving from Docker Compose to Kubernetes

References

• https://www.redhat.com/pt-br/topics/containers/what-is-kubernetes
• https://blog.geekhunter.com.br/kubernetes-a-arquitetura-de-um-cluster/

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