Commit 428bbc92 authored by Achilleas Pipinellis's avatar Achilleas Pipinellis

Merge branch 'docs-article-cloud-foundry' into 'master'

Docs: article - Deploy SB apps to CF with GitLab CI/CD

Closes #47505 and #37524

See merge request gitlab-org/gitlab-ce!19540
parents 863e372f e7947667
---
author: Dylan Griffith
author_gitlab: DylanGriffith
level: intermediary
article_type: tutorial
date: 2018-06-07
description: "Continuous Deployment of a Spring Boot application to Cloud Foundry with GitLab CI/CD"
---
# Deploy a Spring Boot application to Cloud Foundry with GitLab CI/CD
## Introduction
In this article, we'll demonstrate how to deploy a [Spring
Boot](https://projects.spring.io/spring-boot/) application to [Cloud
Foundry (CF)](https://www.cloudfoundry.org/) with GitLab CI/CD using the [Continuous
Deployment](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/#continuous-deployment)
method.
All the code for this project can be found in this [GitLab
repo](https://gitlab.com/gitlab-examples/spring-gitlab-cf-deploy-demo).
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:
![New Project From Template](img/create_from_template.png)
## 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`
clause](../../yaml/README.md#only-and-except-simplified)
to ensure our deployments only happen when we push to the master branch.
Now, since the steps defined in `.gitlab-ci.yml` require credentials to login
to CF, you'll need to add your CF credentials as [environment
variables](../../variables/README.md#predefined-variables-environment-variables)
on GitLab CI/CD. To set the environment variables, navigate to your project's
**Settings > CI/CD** and expand **Secret Variables**. Name the variables
`CF_USERNAME` and `CF_PASSWORD` and set them to the correct values.
![Secret Variable Settings in GitLab](img/cloud_foundry_secret_variables.png)
Once set up, GitLab CI/CD will deploy your app to CF at every push to your
repository's deafult branch. To see the build logs or watch your builds running
live, navigate to **CI/CD > Pipelines**.
CAUTION: **Caution:**
It is considered best practice for security to create a separate deploy
user for your application and add its credentials to GitLab instead of using
a developer's credentials.
To start a manual deployment in GitLab go to **CI/CD > Pipelines** then click
on **Run Pipeline**. Once the app is finished deploying it will display the URL
of your application in the logs for the `production` job like:
```shell
requested state: started
instances: 1/1
usage: 1G x 1 instances
urls: gitlab-hello-world-undissembling-hotchpot.cfapps.io
last uploaded: Mon Nov 6 10:02:25 UTC 2017
stack: cflinuxfs2
buildpack: client-certificate-mapper=1.2.0_RELEASE container-security-provider=1.8.0_RELEASE java-buildpack=v4.5-offline-https://github.com/cloudfoundry/java-buildpack.git#ffeefb9 java-main java-opts jvmkill-agent=1.10.0_RELEASE open-jdk-like-jre=1.8.0_1...
state since cpu memory disk details
#0 running 2017-11-06 09:03:22 PM 120.4% 291.9M of 1G 137.6M of 1G
```
You can then visit your deployed application (for this example,
https://gitlab-hello-world-undissembling-hotchpot.cfapps.io/) and you should
see the "Spring is here!" message.
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