Introduction to Kubernetes:-
Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. It helps ensure that your applications are highly available, fault-tolerant, and easily scalable.
Auto-scaling, which automatically scales containerized applications and their resources up or down based on usage
Lifecycle management, which automates deployments and updates
Resilience and self-healing
Persistent storage
Load balancing
DevSecOps support
Kubernetes Architecture:-
Kubernetes architecture is composed of a control plane, which includes components like the API server, etcd, controller manager, and scheduler. Worker nodes, on the other hand, run containers and manage pods, which are the smallest deployable units in Kubernetes.
Kubectl Basics:-
kubectl is a powerful command-line tool that enables users to interact with Kubernetes clusters. You can use it to create, inspect, and manage various Kubernetes resources, including pods, services, and deployments.
Deploying Your First App:-
we'll walk you through the process of deploying your first application on a Kubernetes cluster. We'll start by creating a Docker container for your application and then define the necessary Kubernetes resources to run it on the cluster.
Pods in Kubernetes:-
In Kubernetes, pods are the smallest deployable units. They represent a single instance of a running process in the cluster and can host one or more containers that share the same network namespace and storage volume.
Kubernetes Services:-
Kubernetes services play a crucial role in enabling communication between pods and making applications accessible to external users. There are different service types, including ClusterIP, NodePort, and LoadBalancer, each serving specific networking needs.
LoadBalancer
The most commonly used service type for Kubernetes networking. It runs on each pod and establishes a connection to the outside world.
eBPF
Extends Berkeley Packet Filter, which is necessary for Kubernetes network observability, monitoring, auditing, and traffic routing.
Kubectl
A tool that can be used to create or operate objects in a Kubernetes cluster.
Deployments
Kubernetes objects that manage pods. They allow you to deploy a specific version of your application and specify the number of pods you require for it to be operational.
Ingress
Sits in front of multiple services and performs smart routing between them, providing access to your cluster.
Kubernetes ConfigMaps and Secrets:-
Kubernetes ConfigMaps and Secrets are valuable tools for managing configuration data and sensitive information within your applications. ConfigMaps store configuration data as key-value pairs, while Secrets securely store sensitive data such as API keys, database passwords, and certificates.
