98 lines
3.2 KiB
Markdown
98 lines
3.2 KiB
Markdown
---
|
|
stage: Verify
|
|
group: Continuous Integration
|
|
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
|
|
type: tutorial
|
|
---
|
|
|
|
# Test and deploy a Ruby application with GitLab CI/CD
|
|
|
|
This example will guide you through how to run tests in your Ruby on Rails application and deploy it automatically as a Heroku application.
|
|
|
|
You can also view or fork the complete [example source](https://gitlab.com/ayufan/ruby-getting-started) and view the logs of its past [CI jobs](https://gitlab.com/ayufan/ruby-getting-started/-/jobs?scope=finished).
|
|
|
|
## Configure the project
|
|
|
|
This is what the `.gitlab-ci.yml` file looks like for this project:
|
|
|
|
```yaml
|
|
test:
|
|
stage: test
|
|
script:
|
|
- apt-get update -qy
|
|
- apt-get install -y nodejs
|
|
- bundle install --path /cache
|
|
- bundle exec rake db:create RAILS_ENV=test
|
|
- bundle exec rake test
|
|
|
|
staging:
|
|
stage: deploy
|
|
script:
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=gitlab-ci-ruby-test-staging --api-key=$HEROKU_STAGING_API_KEY
|
|
only:
|
|
- master
|
|
|
|
production:
|
|
stage: deploy
|
|
script:
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=gitlab-ci-ruby-test-prod --api-key=$HEROKU_PRODUCTION_API_KEY
|
|
only:
|
|
- tags
|
|
```
|
|
|
|
This project has three jobs:
|
|
|
|
- `test` - used to test Rails application.
|
|
- `staging` - used to automatically deploy staging environment every push to `master` branch.
|
|
- `production` - used to automatically deploy production environment for every created tag.
|
|
|
|
## Store API keys
|
|
|
|
You'll need to create two variables in your project's **Settings > CI/CD > Environment variables**:
|
|
|
|
- `HEROKU_STAGING_API_KEY` - Heroku API key used to deploy staging app.
|
|
- `HEROKU_PRODUCTION_API_KEY` - Heroku API key used to deploy production app.
|
|
|
|
Find your Heroku API key in [Manage Account](https://dashboard.heroku.com/account).
|
|
|
|
## Create Heroku application
|
|
|
|
For each of your environments, you'll need to create a new Heroku application.
|
|
You can do this through the [Heroku Dashboard](https://dashboard.heroku.com/).
|
|
|
|
## Create a runner
|
|
|
|
First install [Docker Engine](https://docs.docker.com/installation/).
|
|
|
|
To build this project you also need to have [GitLab Runner](https://docs.gitlab.com/runner/).
|
|
You can use public runners available on `gitlab.com` or register your own. Start by
|
|
creating a template configuration file to pass complex configuration:
|
|
|
|
```shell
|
|
cat > /tmp/test-config.template.toml << EOF
|
|
[[runners]]
|
|
[runners.docker]
|
|
[[runners.docker.services]]
|
|
name = "postgres:latest"
|
|
EOF
|
|
```
|
|
|
|
Finally, register the runner, passing the newly-created template configuration file:
|
|
|
|
```shell
|
|
gitlab-runner register \
|
|
--non-interactive \
|
|
--url "https://gitlab.com/" \
|
|
--registration-token "PROJECT_REGISTRATION_TOKEN" \
|
|
--description "ruby:2.6" \
|
|
--executor "docker" \
|
|
--template-config /tmp/test-config.template.toml \
|
|
--docker-image ruby:2.6
|
|
```
|
|
|
|
With the command above, you create a runner that uses the [`ruby:2.6`](https://hub.docker.com/_/ruby) image and uses a [PostgreSQL](https://hub.docker.com/_/postgres) database.
|
|
|
|
To access the PostgreSQL database, connect to `host: postgres` as user `postgres` with no password.
|