Spring Cloud Task Application Starters are Spring Boot applications that may be any process including Spring Batch jobs that do not run forever, and they end/stop at some point. Spring Cloud Task Applications can be used with Spring Cloud Data Flow to create, deploy, and orchestrate short-lived data microservices.
Spring Cloud Task Application Starters are standalone executable applications that can be used for on-demand use-cases such as database migration, machine learning, and scheduled operations. These applications can run independently on variety of runtime platforms including: Cloud Foundry, Apache Yarn, Apache Mesos, Kubernetes, Docker, or even on your laptop.
Features
- Run standalone as Spring Boot applications
- Orchestrate as ephemeral data microservices
- Consume data microservice applications as maven or docker artifacts
- Override configuration parameters via command-line, environment variables, or YAML file
- Provide infrastructure to test the applications in isolation
- Download as starters from this version of Spring Initializr
Available Applications
| Task |
|---|
| composed-task-runner |
| timestamp |
| timestamp-batch |
Quick Start
Step 1 - Download the latest timestamp application from here [eg: /1.3.0.RELEASE/timestamp-task-1.3.0.RELEASE.jar]
Step 2 - Run timestamp application
java -jar timestamp-task-***.jar
Step 3 - Verify timestamp logs in console
Step 4 - Verify timestamp application shutsdown
Task App Starters and Spring Cloud Data Flow (**)
With Spring Boot 2.1.x + Spring Cloud Task 2.1.x:
| Artifact Type | Stable Release | Milestone/Snapshot Release |
|---|---|---|
| Maven | https://dataflow.spring.io/Elston-GA-task-applications-maven | https://dataflow.spring.io/Elston-BUILD-SNAPSHOT-task-applications-maven |
| Docker | https://dataflow.spring.io/Elston-GA-task-applications-docker | https://dataflow.spring.io/Elston-BUILD-SNAPSHOT-task-applications-docker |
With Spring Boot 2.0.x + Spring Cloud Task 2.0.x:
| Artifact Type | Stable Release | Milestone/Snapshot Release |
|---|---|---|
| Maven | https://dataflow.spring.io/Dearborn-SR1-task-applications-maven | https://dataflow.spring.io/Dearborn-BUILD-SNAPSHOT-task-applications-maven |
| Docker | https://dataflow.spring.io/Dearborn-SR1-task-applications-docker | https://dataflow.spring.io/Dearborn-BUILD-SNAPSHOT-task-applications-docker |
With Spring Boot 1.5.x + Spring Cloud Task 1.2.x:
| Artifact Type | Stable Release | Milestone/Snapshot Release |
|---|---|---|
| Maven | https://dataflow.spring.io/Clark-SR1-task-applications-maven | https://dataflow.spring.io/Clark-BUILD-SNAPSHOT-task-applications-maven |
| Docker | https://dataflow.spring.io/Clark-SR1-task-applications-docker | https://dataflow.spring.io/Clark-BUILD-SNAPSHOT-task-applications-docker |
(**) find out how to use the app-starters in Spring Cloud Data Flow by reviewing the app-registration section in the reference guide
HTTP Repository Location for Apps
Here you will find the direct links to the uber jars for the task apps.
With Spring Boot 2.1.x + Spring Cloud Task 2.1.x:
With Spring Boot 2.0.x + Spring Cloud Task 2.0.x:
With Spring Boot 1.5.x + Spring Cloud Task 1.2.x: