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Introduction to Kubernetes and AWS EKS - Part 1
- This article provides an overview of Kubernetes and its key concepts, including pods and nodes, as well as a brief introduction to Docker and containerization.
- Kubernetes is an open-source platform used to automate the deployment and scaling of containerized applications, while Docker is an open-source tool that automates application deployments and management.
- A Docker image is a package of an application with all its dependencies, which can be run in any system, while a container is an isolated environment in which the image runs.
- To create a Docker image, you need a Dockerfile that includes commands to specify the base image, set environment variables, install dependencies, and more.
- You can use Kubernetes to manage the lifecycles of containers across multiple machines and automate deployment and scaling of containerized applications.
- Key Kubernetes concepts include pods, which represent a single instance of a running process, and nodes, which are working machines in Kubernetes where pods are deployed.
- You can interact with a Kubernetes cluster using kubectl, which is a tool to interact with the control plane.
- AWS EKS is a managed Kubernetes service that allows users to easily create Kubernetes clusters and deploy containerized applications.
- To deploy an application in an EKS cluster, you can create a deployment file and a service file, both defined using YAML, to manage the deployment of the container.
- After applying the YAML files to the cluster using kubectl apply, you can verify the deployment of the container and access it via an external IP.
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