Portainer Agent Deployment on Docker Swarm with User Namespace Remap

Most projects I am currently working on use Docker Container Engine as target environment. Besides the basic Docker engine most projects use Container Orchestration Platforms to add production ready features to their deployment. Although Kubernetes and its derivates became the go to enterprise solution throughout the last couple of years, I tend to use Docker Swarm Mode on some occasions. It just comes out of the box, does not require much configuration and works for most smaller use cases.

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Developing FaaS with Oracle fn Project

In my last post I wrote about general concepts behind Function as a Service (FaaS) and my view on this application development style. As an example I used the basic pipes and filters concept implemented by Unix Shells and many shell commands. Within this post I will use the same example and implement it using a Function as a Service platform. To recap the scenario, we had a simple JSON file containing booking records. From this file we identified certain records based on purchased products. Afterwards we extracted customer emails which could be used as a list for targeted marketing.

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Function as a Service (FaaS)

In the last few years lightweight and flexible technologies and architectures become the predominant approach for enterprise applications. Besides Microservices, Function as a Service (FaaS) or Serverless Programming is a commonly discussed topic. Some see FaaS as an addition to today’s lightweight architectures, others see it as next step within the evolution of Cloud and IT.

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Connect Oracle Developer Cloud Service to Application Container Cloud Service

About six month ago I enjoyed the developer experience Oracle provided with his cloud portfolio. In my opinion the majority of services was integrated seamlessly. Especially the integration between Oracle Developer Cloud Service, a complete CI/CD as a service solution, in combination with various other infrastructure and platform services met my needs perfectly. Unfortunately, I experienced some problems since Oracle switched to its new Oracle Cloud Infrastructure (OCI). I was not able to create a new connection between Developer Cloud, which resides on the traditional Cloud infrastructure, and Application Container Cloud on OCI. Within this post I explain how to create a successful connection.

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Deploy to Oracle Application Container Cloud using Maven

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).

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Running Spring-Boot Microservices on Oracle Container Cloud

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.

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Monitoring in Oracle Application Container Cloud

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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Spring-Boot Microservice Communication in Oracle Application Container Cloud

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.

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Spring-Boot and Oracle Application Container Cloud

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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