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https://github.com/jelastic-jps/spring-boot

Auto Scalable Spring Boot Cluster
https://github.com/jelastic-jps/spring-boot

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Auto Scalable Spring Boot Cluster

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# Auto-Scalable Spring Boot Cluster 



Reliable [Spring Boot](https://projects.spring.io/spring-boot/) Сluster with preconfigured alerts on high load and auto-scaling configurations.



## Spring Boot Cluster Topology



The current Spring Boot solution is implemented using the following software stacks:



- *Load balancer* (LB) - dockerized template with *NGINX 1.10.1*

- *Application server* (AS) - native template with *Spring Boot 1.5.2* on top of *Java 8*



Herewith, each LB and AS container has the default [vertical scaling](https://docs.jelastic.com/automatic-vertical-scaling) limit up to 16 cloudlets (equals to 2 GiB of RAM and 6.4 GHz of CPU per node) and a set of [load alerts](https://docs.jelastic.com/load-alerts) (to notify you when resource consumption comes close to instance threshold). In addition, connection to the cluster is secured with [Jelastic SSL](https://docs.jelastic.com/jelastic-ssl).

 

 






During installation, you define a number of Spring Boot application servers in the cluster (up to 10 instances), which will be automatically [scaled in/out](https://docs.jelastic.com/automatic-horizontal-scaling) in order to handle the dynamically changing amount of incoming traffic.



## How to Install Auto-Scalable Spring Boot Cluster



In order to get Spring Boot Cluster solution instantly deployed, click the **Deploy to Jelastic** button below and specify your email address within the opened widget. Then choose one of the [Jelastic Public Cloud](https://jelastic.cloud) providers (in case you don’t have an account at the appropriate platform, it will be created automatically) and click **Install**.



[![Deploy](images/deploy-to-jelastic.png)](https://jelastic.com/install-application/?manifest=https://raw.githubusercontent.com/jelastic-jps/spring-boot/master/manifest.jps)



If you have Jelastic account, log in to the dashboard and **Import** the required [JPS](https://docs.jelastic.com/jps) manifest using the link: 

[https://github.com/jelastic-jps/spring-boot/blob/master/manifest.jps](https://github.com/jelastic-jps/spring-boot/blob/master/manifest.jps)



 






Fill in the installation form with the following data:



- *Nodes in Cluster* - a number of application servers your cluster should include

- Choose deployment type:

   - *Clean Cluster* - to create a bare cluster with no application inside

   - *Deploy JAR* - to deploy *JAR* application from the specified custom repository

   

If required, change *Environment name*, *Display Name* ([alias](https://docs.jelastic.com/environment-aliases)), [Region](https://docs.jelastic.com/environment-regions) and click **Install**.










Refer to the linked article for more information on [working with the Spring Boot](http://blog.jelastic.com/2017/04/27/hosting-spring-boot-java-applications/) in Jelastic Cloud.



## Spring Boot JAR Builder for Running Microservices



If you want to build and deploy your applications as microservice, feel free to use the preconfigured add-ons for automatic building Spring Boot projects of the following types:



- [Fat(Uber)](https://github.com/jelastic-jps/spring-boot/tree/master/microservice-fat-jar)

- [Thin](https://github.com/jelastic-jps/spring-boot/tree/master/microservice-thin-jar)



### Managed Hosting Business on Spring Boot Cluster



To start offering this solution to your customers please follow to [Managed PaaS Hosting Business](https://jelastic.com/apaas/)