Cloud

Deployment Process

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In previous posts we discussed how Microservice applications can be implemented, combined and monitored in Oracle Application Container Cloud service. So far, we focused on a manual deployment process. However, when aiming to implement a working Microservice strategy DevOps is a key success factor. One area DevOps concentrates on is software delivery automation (CI/CD).

Spring-Boot in Oracle Container Cloud Service

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After looking into how to run a Spring-Boot based Microservice application on Oracle’s Application Container Cloud service, this post will concentrate on Oracle Container Cloud Service. In short, Oracle Container Cloud Service is Oracle’s enterprise-grade container infrastructure solution. It provides features to compose, deploy, orchestrate and manage Docker container-based applications. In contrast to Oracle Application Container Cloud Service customers can completely control containers deployed within this infrastructure. Therefore, this service provides the highest amount of flexibility for container-based applications. On the other hand, it does not relieve customers of tasks like Oracle Application Container Cloud Service.

Monitoring in Oracle Application Container Cloud Service

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In posts one and two within this series we created and deployed Spring-Boot Microservices in Oracle’s Application Container Cloud Service (ACC). Usually, after deploying an application and enabling user traffic an application must be monitored to ensure a high level of service and identify approaching problems. This blog post describes how monitoring in Oracle Application Container Cloud can be achieved using standard features. The focus will be on Java applications.

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In this blogpost I would like to show you, how an EC2 instance can register itself automatically on AWS Route 53. This could be important, if you have ie. a clustered group of nodes (like an Apache ZooKeeper or Kafka Cluster) where a list of DNS-Names or IP-Addresses need to be configured and you don't want to use AWS specific DNS names.

Oracle ACC and Spring-Boot

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In my last post I gave an introduction to Oracle Application Container Cloud (ACC) and how to develop Spring-Boot applications such that they can be hosted within Oracle ACC. At the end of the post some questions still had to be answered. Within this post we are going to tackle the first one, how is Microservice Communication in Oracle Application Container Cloud achieved? The following figure shows what a simple architecture, within the context of a Spring-Boot Microservice application, might look like.

Oracle ACC and Spring-Boot

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Microservices as an architectural style as well as scalable and manageable cloud infrastructure are the foundation for modern and flexible business applications. Therefore, Oracle invested heavily in maturing its Cloud portfolio and providing services to support development and operations of such applications. One Oracle cloud service aimed at these kind of applications is “Oracle Application Container Cloud Service” (ACC). It provides a simple Docker based environment in which your Microservices can be deployed. In order to reduce the operations overhead, developers only have to provide their applications (NodeJS, Java SE or PHP) in a certain format and Oracle’s cloud infrastructure takes over.

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Aktuelle Applikation im Web oder Serviceumfeld in der Cloud oder on premises nutzen oftmals einen Container Orchestrierungsansatz. Einerseits werden somit Container eingesetzt, um Applikationen zu betreiben, andererseits wird das Deployment durch ein Orchestration Framework unterstützt. Die führenden Ansätze sind Docker Swarm, Kubernetes und Mesos (Marathon). Details zu den Ansätzen sind hier zu finden. Alle Frameworks können in der Cloud, als auch im eigenen Rechenzentrum eingesetzt werden. Alle Komponenten stammen im Normalfall aus dem Open Source Umfeld.

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Because things in IT change fast, it’s sometimes difficult to distinguish the important trends from the less important. And that’s true for Oracle as well. It’s not that long ago when Oracle CEO Larry Elisson thought of Cloud Computing as just another short-living fashion trend (great audio by the way). But that began to change soon. And at least since Oracle OpenWorld 2015 we know for sure how serious Oracle became about Cloud Computing.

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In diesem Jahr fand die Oracle Open World und Java One vergleichsweise spät vom 25.10. - 29.10.2015 in San Francisco statt. Die Oracle Open World stand vor allem unter dem Motto Cloud Plattform Strategie. Auf der Java One stand das 20-jährige Bestehen der Programmiersprache Java im Vordergrund. Zusammenfassend möchte ich meine persönlichen Highlights und Erkenntnisse kompakt schildern.