Oracle Cloud – Deploying Microservice Containers by Johan Louwers


Whenever you engage on a more microservice oriented way of developing your application it will become clear that this is an architecture that is more suitable to be developed in a DevOps manner than in the traditional way applications are developed and maintained.
One of the things that we see a lot in enterprises that start transforming from traditional IT to a more modern way of architecture, development and maintenance is the adoption of extreme fast and flexible building blocks. Those building blocks are often selected to provide the optimal support for a DevOps king op operation and ensuring a high flexibility for agile development as well as for scaling up and down compute resources.
One of the technologies we see gaining adoption in the enterprise in a rapid fashion is the use of containers in combination of microservies. Instead of provisioning "virtual machines" in a cloud environment to host a monolithic application the trend is changing to deploying containers to host webservices.
An example of such a deployment you can think of running Flask in a Docker container. Flask is a microframework for Python based on Werkzeug and Jinja 2 under the BSD license and it is ideal for developing microservices with Python. Dockerize a simple flask app is relative easy and a large number of tutorials and examples are available.
Deploying with Oracle Cloud
When you are building an enterprise class microservice architecture based footprint and start adopting a container based infrastructure in a DevOps fashion the Oracle Cloud is providing some ideal components to get started.

As you can see from the above high level representation Oracle provides some of the key components for building such a landscape. In this example your developers will make use of the Oracle Developer Cloud Service to develop and store code. However, this is also the foundation for an automated deployment of containers which will contain both the needed technical components such as Flask and the developed microservice.
In the above example you can see that "application consumers" have a "person" as icon. In reality the consumers of a microservice will be in most cases applications instead of real life persons. While stating applications, this can be real life applications or this can be also another set of microservices.
The Oracle Developer Cloud Service provides the basic components to facilitate a fully automated continues integration strategy. In case you desire more than what is provided out of the box you can deploy and integrate whatever you need by leveraging the Oracle Compute Cloud Service.
Integrate with other services
Even though you can in theory build everything based upon a container strategy. The question architects have to ask is, which parts do I want to develop and which parts do I want to consume. In many cases it is much more beneficial to consume a service rather than develop a service. For example messaging, you can build a messaging service yourself or you can make use of the Oracle Messaging Cloud Service instead and consume this rather than develop it. Read the complete article here.

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