Application Modernization

Since the beginning with computer software, the evolutionary journey software takes is typically a modernization journey. Re-platforming, re-factoring, re-architecting, and even re-hosting (from Amazon’s 6 R’s) are all part of Application Modernization. Migrating to Microservices is a popular Application Modernization to take on today.

What does it mean to migrate a monolith to a microservice?

The journey of building smaller deployable units has been going on for a while. Going from a monolith to microservices is a journey that, in the end, yields more deployable units. An entire application or platform can be decomposed into smaller functional areas which can independently scale and be deployed.

How Harness supports the migration from monolith to microservice.

As applications are decomposed into smaller pieces e.g .Microservices, deployment complexity increases. The more pieces you have, the more you have to deploy. Harness, with its self-service and convention-based deployments, makes scaling deployments easy. Harness erases complexity around deployment strategy, verification and rollbacks.

What does support for traditional apps mean?

Traditional applications are those not running in a Linux container e.g Docker, Mesos, etc. With the rise of cloud native technologies, many applications are still traditional. As such, supporting only the latest container orchestrators like Kubernetes leaves traditional apps behind.

How Harness provides support for traditional apps.

Harness is ubiquitous where you deploy to. Harness can deploy to almost any infrastructure, ranging from physical servers to serverless providers. Harness has the ability to even orchestrate Application Server deployments such as JBoss and Tomcat.

What are Containers?

Containers, or Linux Containers, are popular packaging and virtualization methods for running multiple isolated systems on a host system. Since containers package all needed system and application dependencies, agility can be achieved by shipping exactly what you need.

How Containers work with Harness.

Harness supports multiple methods of orchestrating containers such as Kubernetes and Amazon ECS. Harness can interact with a variety of container registries from public cloud providers such as ECR/GCR and private registries on your own infrastructure.

What is Container Orchestration?

Containers are made to die and the purpose of container orchestrators are to maintain a schedule (minimums and maximums) of running containers and resource management by placing containers on the most appropriate resources/nodes.

How Harness works with Container Orchestration.

Harness can interact with multiple container orchestrators. No matter if deploying to Kubernetes or Amazon ECS, Harness has the ability to be ubiquitous when interacting with a container orchestration. Harness out of the box provides scaffold deployments to several popular orchestrators.