143 lines
5.3 KiB
Markdown
143 lines
5.3 KiB
Markdown
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---
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author: Dylan Griffith
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author_gitlab: DylanGriffith
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level: intermediary
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article_type: tutorial
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date: 2018-06-07
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description: "Continuous Deployment of a Spring Boot application to Cloud Foundry with GitLab CI/CD"
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---
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# Deploy a Spring Boot application to Cloud Foundry with GitLab CI/CD
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## Introduction
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In this article, we'll demonstrate how to deploy a [Spring
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Boot](https://projects.spring.io/spring-boot/) application to [Cloud
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Foundry (CF)](https://www.cloudfoundry.org/) with GitLab CI/CD using the [Continuous
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Deployment](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/#continuous-deployment)
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method.
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All the code for this project can be found in this [GitLab
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repo](https://gitlab.com/gitlab-examples/spring-gitlab-cf-deploy-demo).
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In case you're interested in deploying Spring Boot applications to Kubernetes
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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/).
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## Requirements
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_We assume you are familiar with Java, GitLab, Cloud Foundry, and GitLab CI/CD._
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To follow along with this tutorial you will need the following:
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- An account on [Pivotal Web Services (PWS)](https://run.pivotal.io/) or any
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other Cloud Foundry instance
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- An account on GitLab
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NOTE: **Note:**
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You will need to replace the `api.run.pivotal.io` URL in the all below
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commands with the [API
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URL](https://docs.cloudfoundry.org/running/cf-api-endpoint.html) of your CF
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instance if you're not deploying to PWS.
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## Create your project
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To create your Spring Boot application you can use the Spring template in
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GitLab when creating a new project:
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![New Project From Template](img/create_from_template.png)
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## Configure the deployment to Cloud Foundry
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To deploy to Cloud Foundry we need to add a `manifest.yml` file. This
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is the configuration for the CF CLI we will use to deploy the application. We
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will create this in the root directory of our project with the following
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content:
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```yaml
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---
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applications:
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- name: gitlab-hello-world
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random-route: true
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memory: 1G
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path: target/demo-0.0.1-SNAPSHOT.jar
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```
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## Configure GitLab CI/CD to deploy your application
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Now we need to add the the GitLab CI/CD configuration file
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([`.gitlab-ci.yml`](../../yaml/README.md)) to our
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project's root. This is how GitLab figures out what commands need to be run whenever
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code is pushed to our repository. We will add the following `.gitlab-ci.yml`
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file to the root directory of the repository, GitLab will detect it
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automatically and run the steps defined once we push our code:
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```yaml
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image: java:8
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stages:
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- build
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- deploy
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build:
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stage: build
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script: ./mvnw package
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artifacts:
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paths:
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- target/demo-0.0.1-SNAPSHOT.jar
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production:
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stage: deploy
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script:
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- curl --location "https://cli.run.pivotal.io/stable?release=linux64-binary&source=github" | tar zx
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- ./cf login -u $CF_USERNAME -p $CF_PASSWORD -a api.run.pivotal.io
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- ./cf push
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only:
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- master
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```
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We've used the `java:8` [docker
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image](../../docker/using_docker_images.md) to build
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our application as it provides the up-to-date Java 8 JDK on [Docker
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Hub](https://hub.docker.com/). We've also added the [`only`
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clause](../../yaml/README.md#only-and-except-simplified)
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to ensure our deployments only happen when we push to the master branch.
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Now, since the steps defined in `.gitlab-ci.yml` require credentials to login
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to CF, you'll need to add your CF credentials as [environment
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variables](../../variables/README.md#predefined-variables-environment-variables)
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on GitLab CI/CD. To set the environment variables, navigate to your project's
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**Settings > CI/CD** and expand **Secret Variables**. Name the variables
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`CF_USERNAME` and `CF_PASSWORD` and set them to the correct values.
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![Secret Variable Settings in GitLab](img/cloud_foundry_secret_variables.png)
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Once set up, GitLab CI/CD will deploy your app to CF at every push to your
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repository's deafult branch. To see the build logs or watch your builds running
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live, navigate to **CI/CD > Pipelines**.
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CAUTION: **Caution:**
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It is considered best practice for security to create a separate deploy
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user for your application and add its credentials to GitLab instead of using
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a developer's credentials.
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To start a manual deployment in GitLab go to **CI/CD > Pipelines** then click
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on **Run Pipeline**. Once the app is finished deploying it will display the URL
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of your application in the logs for the `production` job like:
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```shell
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requested state: started
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instances: 1/1
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usage: 1G x 1 instances
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urls: gitlab-hello-world-undissembling-hotchpot.cfapps.io
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last uploaded: Mon Nov 6 10:02:25 UTC 2017
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stack: cflinuxfs2
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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...
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state since cpu memory disk details
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#0 running 2017-11-06 09:03:22 PM 120.4% 291.9M of 1G 137.6M of 1G
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```
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You can then visit your deployed application (for this example,
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https://gitlab-hello-world-undissembling-hotchpot.cfapps.io/) and you should
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see the "Spring is here!" message.
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