What is K8s Ingress? — Introduction to Kubernetes Ingress.

TL;DR

Ingress exposes HTTP and HTTPS routes from outside the cluster to services within the cluster. Traffic routing is controlled by rules defined on the Ingress resource.

Read about Kubernetes — Services and Service Types

What is Ingress in Kubernetes?

In Kubernetes, an Ingress is an object that allows access to Kubernetes services from outside the Kubernetes cluster. You can configure access by creating a collection of rules that define which inbound connections reach which services.

An Ingress can be configured to give Services externally-reachable URLs, load balance traffic, terminate SSL/TLS, and offer name-based virtual hosting. …

Comparison: Azure Load Balancer vs Application Gateway in Azure.

TL;DR:

Azure Load Balancer works with traffic at Layer 4.
Application Gateway works with Layer 7 traffic, and specifically with HTTP/S (including WebSockets).

Azure Application Gateway

Application Gateway (AGW) is a web traffic manager for your web applications (one or multiple).

1. With AGW, on top of load balancing your workloads, you can make routing decisions based on URI path or host headers. For example, you can route traffic based on the incoming URL. If /images are in the inbound URL, you can route traffic to a specific set of servers (or pool) configured for images…

Introduction to Clean Architecture with ASP.NET Core: Getting started!

TL;DR

Clean Architecture style focus on a loosely coupled implementation of use cases. Use cases as central organizing structure, decoupled from frameworks and technology details.

Clean Architecture Overview

With Clean Architecture, the Domain and Application layers are at the center of the design which is known as the Core of the system. Business Logic places into these two layers, while they contain different kinds of business logic. They are seen as details and the business layers should not depend on Presentation and Infrastructure layers. Instead of having business logic depend on data access or other…

What is Terraform Remote State — Introduction to Terraform Remote Storage!

TL;DR

With remote state, Terraform writes the state data to a remote data store, which can be shared between all team members.

Why you need Terraform Remote States?

By default, Terraform stores its state in the file terraform.tfstate in local filesystem. This works well for personal projects, but working with Terraform in a team, use of a local file makes Terraform usage complicated because each user must make sure they always have the latest state data before running Terraform and make sure that nobody else runs Terraform at the same time.

The best way to do…

Kubernetes Storage Options — Persistent Volumes (PV), Persistent Volume Claims (PVC), Storage Classes (SC).

TL;DR

Kubernetes has a number of storage types, and these can be mixed and matched within a pod. The important objects for running stateful containers are:

• Persistent Volume — low level representation of a storage volume.
• Persistent Volume Claim — binding between a Pod and Persistent Volume.
• Storage Class — allows for dynamic provisioning of Persistent Volumes.

Persistent Volumes (PV)

• PV is an abstraction for the physical storage device that attached to the cluster. PV is used to manage durable storage which needs actual physical storage.
• PV is independent of…

Comparison — Azure ExpressRoute vs Azure VPN Gateway.

TL;DR

ExpressRoute provides direct connectivity to Azure cloud services and connecting Microsoft’s global network. All transferred data is not encrypted, and do not go over the public Internet.

VPN Gateway provides secured connectivity to Azure cloud services over public Internet. All transferred data is encrypted in a private tunnel as it crosses the internet.

Azure ExpressRoute

What is Amazon MQ? — Introduction to Amazon MQ (Managed Message Broker Service).

TL;DR

Amazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up, migrate and operate message brokers on AWS Cloud.

Amazon MQ Features

• Managed Service — Amazon MQ manages administrative tasks such as hardware provisioning, broker setup, software upgrades, and failure detection and recovery.
• Security — Amazon MQ provides encryption of messages at rest and in transit.
• Monitoring — Amazon MQ is integrated with Amazon CloudWatch and AWS CloudTrail.
• Broker Instance Types — Amazon MQ supports both single-instance brokers, suitable for evaluation…

Introduction to Kubernetes Architecture and Understanding K8s Cluster Components.

TL;DR

Kubernetes (K8s) is an open-source system for automating deployment, scaling, and management of containerized applications. Kubernetes abstracts away complex container management and provides us with declarative configuration to orchestrate containers in different compute environments.

Kubernetes Architecture

Kubernetes deployment is called a cluster. A Kubernetes cluster consists of at least one main (control) plane, and one or more worker machines, called nodes. Both the control planes and node instances can be physical devices, virtual machines, or instances in the cloud.

Control Plane

• Also known as master node or head node.
• The control plane manages the worker…