Kubernetes?

Kubernetes is an open-source platform used for managing containerized application workloads, as well as providing declarative configuration and automation. Kubernetes is in a large and fast-growing ecosystem. Kubernetes services, support, and tools are widely available.

Kubernetes provides container-centered environmental management. Kubernetes manages to compute networking and storage infrastructure. This feature then makes the concept of Platform as a Service (PaaS) simpler, flexible, equipped with Infrastructure as a Service (IaaS).

Why Kubernetes High Availability?

So the HA function here is to create a bridge and load divider communication between many nodes to the master. The node reads as if there are only one master and…


What is Portainer?

Portainer is the definitive open-source container management UI tool for Kubernetes, Docker, Docker Swarm, and Azure ACI. It allows anyone to deploy and manage containers without the need to write code. By negating the need for users to use CLI, write YAML or understand manifests, Portainer makes deploying apps and troubleshooting problems so simple, anyone can do it.

Topology :

Detail VMs:
- Ubuntu 20.04
- 4 VCPUs
- 8 GB Ram

Ok, Let’s get started.

## Execute on all nodes

● Update and upgrade package

sudo apt update -y; sudo apt upgrade -y; sudo apt update…

How manage and monitoring existing Kubernetes cluster with Rancher

Overview

Rancher was originally built to work with multiple orchestrators, and it included its own orchestrator called Cattle. With the rise of Kubernetes in the marketplace, Rancher 2.x exclusively deploys and manages Kubernetes clusters running anywhere, on any provider.

Rancher can provision Kubernetes from a hosted provider, provision computes nodes, and then install Kubernetes onto them, or import existing Kubernetes clusters running anywhere.

One Rancher server installation can manage thousands of Kubernetes clusters and thousands of nodes from the same user interface.

Rancher adds significant value on top of Kubernetes, first by…

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