In case you're interested in deploying Spring Boot applications to Kubernetes
using GitLab CI/CD, read through the blog post [Continuous Delivery of a Spring Boot application with GitLab CI and Kubernetes](https://about.gitlab.com/2016/12/14/continuous-delivery-of-a-spring-boot-application-with-gitlab-ci-and-kubernetes/).
## Requirements
_We assume you are familiar with Java, GitLab, Cloud Foundry, and GitLab CI/CD._
To follow along with this tutorial you will need the following:
- An account on [Pivotal Web Services (PWS)](https://run.pivotal.io/) or any
other Cloud Foundry instance
- An account on GitLab
NOTE: **Note:**
You will need to replace the `api.run.pivotal.io` URL in the all below
commands with the [API
URL](https://docs.cloudfoundry.org/running/cf-api-endpoint.html) of your CF
instance if you're not deploying to PWS.
## Create your project
To create your Spring Boot application you can use the Spring template in
GitLab when creating a new project:
## Configure the deployment to Cloud Foundry
To deploy to Cloud Foundry we need to add a `manifest.yml` file. This
is the configuration for the CF CLI we will use to deploy the application. We
will create this in the root directory of our project with the following
content:
```yaml
---
applications:
- name: gitlab-hello-world
random-route: true
memory: 1G
path: target/demo-0.0.1-SNAPSHOT.jar
```
## Configure GitLab CI/CD to deploy your application
Now we need to add the the GitLab CI/CD configuration file
([`.gitlab-ci.yml`](../../yaml/README.md)) to our
project's root. This is how GitLab figures out what commands need to be run whenever
code is pushed to our repository. We will add the following `.gitlab-ci.yml`
file to the root directory of the repository, GitLab will detect it
automatically and run the steps defined once we push our code:
```yaml
image: java:8
stages:
- build
- deploy
build:
stage: build
script: ./mvnw package
artifacts:
paths:
- target/demo-0.0.1-SNAPSHOT.jar
production:
stage: deploy
script:
- curl --location "https://cli.run.pivotal.io/stable?release=linux64-binary&source=github" | tar zx
- ./cf login -u $CF_USERNAME -p $CF_PASSWORD -a api.run.pivotal.io
- ./cf push
only:
- master
```
We've used the `java:8` [docker
image](../../docker/using_docker_images.md) to build
our application as it provides the up-to-date Java 8 JDK on [Docker
Hub](https://hub.docker.com/). We've also added the [`only`
