79 lines
2.5 KiB
Markdown
79 lines
2.5 KiB
Markdown
---
|
|
type: tutorial
|
|
---
|
|
|
|
# Test and deploy a Scala application to Heroku
|
|
|
|
This example demonstrates the integration of GitLab CI with Scala
|
|
applications using SBT. You can view or fork the [example project](https://gitlab.com/gitlab-examples/scala-sbt)
|
|
and view the logs of its past [CI jobs](https://gitlab.com/gitlab-examples/scala-sbt/-/jobs?scope=finished).
|
|
|
|
## Add `.gitlab-ci.yml` file to project
|
|
|
|
The following `.gitlab-ci.yml` should be added in the root of your
|
|
repository to trigger CI:
|
|
|
|
``` yaml
|
|
image: java:8
|
|
|
|
stages:
|
|
- test
|
|
- deploy
|
|
|
|
before_script:
|
|
- apt-get update -y
|
|
- apt-get install apt-transport-https -y
|
|
## Install SBT
|
|
- echo "deb http://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list
|
|
- apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 642AC823
|
|
- apt-get update -y
|
|
- apt-get install sbt -y
|
|
- sbt sbtVersion
|
|
|
|
test:
|
|
stage: test
|
|
script:
|
|
- sbt clean coverage test coverageReport
|
|
|
|
deploy:
|
|
stage: deploy
|
|
script:
|
|
- apt-get update -yq
|
|
- apt-get install rubygems ruby-dev -y
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=gitlab-play-sample-app --api-key=$HEROKU_API_KEY
|
|
```
|
|
|
|
In the above configuration:
|
|
|
|
- The `before_script` installs [SBT](https://www.scala-sbt.org/) and
|
|
displays the version that is being used.
|
|
- The `test` stage executes SBT to compile and test the project.
|
|
- [sbt-scoverage](https://github.com/scoverage/sbt-scoverage) is used as an SBT
|
|
plugin to measure test coverage.
|
|
- The `deploy` stage automatically deploys the project to Heroku using dpl.
|
|
|
|
You can use other versions of Scala and SBT by defining them in
|
|
`build.sbt`.
|
|
|
|
## Display test coverage in job
|
|
|
|
Add the `Coverage was \[\d+.\d+\%\]` regular expression in the
|
|
**Settings ➔ Pipelines ➔ Coverage report** project setting to
|
|
retrieve the [test coverage](../../user/project/pipelines/settings.md#test-coverage-report-badge)
|
|
rate from the build trace and have it displayed with your jobs.
|
|
|
|
**Pipelines** must be enabled for this option to appear.
|
|
|
|
## Heroku application
|
|
|
|
A Heroku application is required. You can create one through the
|
|
[Dashboard](https://dashboard.heroku.com/). Substitute `gitlab-play-sample-app`
|
|
in the `.gitlab-ci.yml` file with your application's name.
|
|
|
|
## Heroku API key
|
|
|
|
You can look up your Heroku API key in your
|
|
[account](https://dashboard.heroku.com/account). Add a [protected variable](../variables/README.md#protected-environment-variables) with
|
|
this value in **Project ➔ Variables** with key `HEROKU_API_KEY`.
|