Container Ecosystem on Windows, Linux – When to Choose

Everything the application depends on to run successfully can lives inside a container. Containers are an isolated, resource controlled, and portable runtime environment which runs on a host machine or virtual machine. An application or process which runs in a container is packaged with all the required dependencies and configuration files.

Containers grew up in Linux. In Windows Server 2016, containers can run on Windows and run Windows on the inside.

The idea is that you can run containers in the cloud, in the customer data center, or in container services and manage them consistently.

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Container Orchestration with Docker Swarm, Marathon, Kubernetes

You need orchestration when transitioning from deploying containers individually on a single host to deploying complex multi-container apps on many machines.

The following describes some of the most popular:

  • Docker Swarm
  • Mesos DC/OS
  • Kubernetes

The purpose of this post is to define the terms and to surface the main features. The goal of the post is not to compare, but to provide definitions of the container technologies.

In general, these container solutions run and support Linux containers.

Continue reading “Container Orchestration with Docker Swarm, Marathon, Kubernetes”

Docker Container Concepts, Architecture, Overview

Containers are key to the modern datacenter.

Docker is an open platform for developing, shipping, and running applications in containers.
This post describes the conceptual parts that you will use in setting up Docker. Here are the primary parts:

  • Docker Image is a read-only template for creating a Docker container. You can create your own Dockerfile to define the steps to create an image.
  • Docker Container is a runnable instance of an image. You can create, start, stop, move, or delete a container using the Docker API or CLI.
  • You talk to the Container through the Docker Engine that provides the Docker client which talks to the Docker daemon. The Docker daemon listens for Docker API requests and manages Docker objects such as images, containers, networks, and volumes.
  • Docker Registries stores Docker images. You pull Docker images from the registries. There are public registries and private registries. One private registry is Azure Container Registry provides a private registry for your containers.
  • Task of automating and managing a large number of containers and how they interact is known as orchestration.

Continue reading “Docker Container Concepts, Architecture, Overview”

Getting started with Azure and Azure Active Directory using PowerShell

You can start working with Azure in the Azure portal. But soon, you will need PowerShell (or the Azure CLI) to explore the power of Azure. Not everything you can do shows up in the portal. In fact, the features are all exposed through the Azure scripts first.
Continue reading “Getting started with Azure and Azure Active Directory using PowerShell”