Spring Boot

Writing Your First Camel Spring Boot Project With the Rest DSL

Writing Your First Camel Spring Boot Project With the Rest DSL

Rest services are becoming more and more popular for communication between systems.  Now that Red Hat supports the use of Red Hat JBoss Fuse with Apache Camel Spring Boot, learn how you can get started with the Rest DSL and Spring Boot.  These directions will use the camel-servlet component, although various components can be used.

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Next DevNation Live: Secure Spring Boot Microservices with Keycloak, March 1st, 12pm EST

Next DevNation Live: Secure Spring Boot Microservices with Keycloak, March 1st, 12pm EST

The next online DevNation Live Tech Talk will be Thursday, March 1st at 12pm EST. The topic is Secure Spring Boot Microservices with Keycloak presented by Sébastien Blanc.

Although security and identity management are critical aspects for any application, implementation can be difficult. As a result, these things are often neglected, poorly implemented, and intrusive in the code. Recently, identity management servers have appeared that allow you to outsource and delegate all aspects of authentication and authorization, such as auth0.com. Of these servers, one of the most promising is Keycloak, because it is open source, flexible, and technology agnostic. Keycloak is easily deployable on a variety of infrastructure and is very adaptable for many types of deployments.

Register now, and join the live presentation at 12 pm EST on Thursday, March 1st.

** UPDATE: Missed the live session?  Watch the video online. **

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DevNation Live Tech Talk: KubeBoot – Spring Boot deployment on Kubernetes

DevNation Live Tech Talk: KubeBoot – Spring Boot deployment on Kubernetes

The next online DevNation Live Tech Talk will be Thursday, February 15th, at 12 pm EST.  The topic is Spring Boot deployment on Kubernetes presented by Kamesh Sampath.  In this 30-minute live session, we will see how to build, debug, deploy, and discover Spring Boot applications on Kubernetes. The talk will include details of the tools, libraries, and platform that could be used to make your spring boot deployment smooth and easy.

Register Now, and then join the live presentation at 12 pm EST, February 15th.

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Configuring Spring Boot on Kubernetes with Secrets

In the Part-I of the series, we saw how we used ConfigMaps in configuring spring boot application Kubernetes. ConfigMaps are OK when we use simple configuration data that do not contain sensitive information. When using sensitive data like API Keys, passwords etc. Secrets are the preferred and recommended way. In this second part of the series, we will explore configuring spring boot on kubernetes with Secrets.

The sources for this blog post are available in my github repo.

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Configuring Spring Boot on Kubernetes with ConfigMap

ConfigMaps is the Kubernetes counterpart of the Spring Boot externalized configuration. ConfigMaps is a simple key/value store, which can store simple values to files. In this post  “Configuring Spring Boot on Kubernetes with ConfigMap”,  we will see how to use ConfigMaps to externalize the application configuration.

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Configuring Spring Boot Application on Kubernetes

When the developers plan to deploy Spring Boot application on Kubernetes, the first question comes to a spring developer’s mind is “Can I use Spring Config server?” Spring Config server is a de-facto way of doing centralized configuration of a distributed application. Yes, we can use Spring Config server, but let’s think of some constraints that Spring Config server can have in a typical Enterprise deployment:

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Easily secure your Spring Boot applications with Keycloak

Easily secure your Spring Boot applications with Keycloak

What is Keycloak?

Although security is a crucial aspect of any application, its implementation can be difficult. Worse, it is often neglected, poorly implemented and intrusive in the code. But lately, security servers have appeared which allow for outsourcing and delegating all the authentication and authorization aspects. Of these servers, one of the most promising is Keycloak, open-source, flexible, and agnostic of any technology, it is easily deployable/adaptable in its own infrastructure.

Moreover, Keycloak is more than just an authentication server, it also provides a complete Identity Management system, user federation for third parties like LDAP and a lot more … Check it out on here.

The project can also be found on Github

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Spring Boot and OAuth2 with Keycloak

Spring Boot and OAuth2 with Keycloak

The tutorial Spring Boot and OAuth2 showed how to enable OAuth2 with Spring Boot with Facebook as AuthProvider; this blog is the extension of showing how to use KeyCloak as AuthProvider instead of Facebook. I intend to keep this example as close to the original Spring Boot and OAuth2 and will explain the changes to the configuration to make the same application work with KeyCloak. The source code for the examples are available in the github repositories listed below.

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Spring Cloud for Microservices Compared to Kubernetes

Spring Cloud and Kubernetes both claim to be the best environment for developing and running Microservices, but they are both very different in nature and address different concerns. In this article we will look at how each platform is helping in delivering Microservice based architectures (MSA), in which areas they are good at, and how to take best of both worlds in order to succeed in the Microservices journey.

Background Story

Recently I read a great article about building Microservice Architectures With Spring Cloud and Docker by A. Lukyanchikov. If you haven’t read it, you should, as it gives a comprehensive overview of what it takes to create a simple Microservices based system using Spring Cloud. In order to build a scalable and resilient Microservices system that could grow to tens or hundreds of services, it must be centrally managed and governed with the help of a tool set that has extensive build time and run time capabilities. With Spring Cloud, that involves implementing both functional services (such as statistics service, account service and notification service) and supporting infrastructure services (such as log analysis, configuration server, service discovery, auth service). A diagram describing such a MSA using Spring Cloud is below:

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MSA with Spring Cloud (by A. Lukyanchikov)

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