128 lines
4.1 KiB
Markdown
128 lines
4.1 KiB
Markdown
---
|
|
type: tutorial
|
|
---
|
|
|
|
# Using Dpl as deployment tool
|
|
|
|
[Dpl](https://github.com/travis-ci/dpl) (pronounced like the letters D-P-L) is a deploy tool made for
|
|
continuous deployment that's developed and used by Travis CI, but can also be
|
|
used with GitLab CI.
|
|
|
|
Dpl can be used to deploy to any of the [supported providers](https://github.com/travis-ci/dpl#supported-providers).
|
|
|
|
## Requirements
|
|
|
|
To use Dpl you need at least Ruby 1.9.3 with ability to install gems.
|
|
|
|
## Basic usage
|
|
|
|
Dpl can be installed on any machine with:
|
|
|
|
```shell
|
|
gem install dpl
|
|
```
|
|
|
|
This allows you to test all commands from your local terminal, rather than
|
|
having to test it on a CI server.
|
|
|
|
If you don't have Ruby installed you can do it on Debian-compatible Linux with:
|
|
|
|
```shell
|
|
apt-get update
|
|
apt-get install ruby-dev
|
|
```
|
|
|
|
The Dpl provides support for vast number of services, including: Heroku, Cloud Foundry, AWS/S3, and more.
|
|
To use it simply define provider and any additional parameters required by the provider.
|
|
|
|
For example if you want to use it to deploy your application to Heroku, you need to specify `heroku` as provider, specify `api-key` and `app`.
|
|
All possible parameters can be found here: <https://github.com/travis-ci/dpl#heroku-api>.
|
|
|
|
```yaml
|
|
staging:
|
|
stage: deploy
|
|
script:
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=my-app-staging --api-key=$HEROKU_STAGING_API_KEY
|
|
```
|
|
|
|
In the above example we use Dpl to deploy `my-app-staging` to Heroku server with API key stored in `HEROKU_STAGING_API_KEY` secure variable.
|
|
|
|
To use different provider take a look at long list of [Supported Providers](https://github.com/travis-ci/dpl#supported-providers).
|
|
|
|
## Using Dpl with Docker
|
|
|
|
In most cases, you will have configured [GitLab Runner](https://docs.gitlab.com/runner/) to use your server's shell commands.
|
|
This means that all commands are run in the context of local user (e.g. gitlab_runner or gitlab_ci_multi_runner).
|
|
It also means that most probably in your Docker container you don't have the Ruby runtime installed.
|
|
You will have to install it:
|
|
|
|
```yaml
|
|
staging:
|
|
stage: deploy
|
|
script:
|
|
- apt-get update -yq
|
|
- apt-get install -y ruby-dev
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=my-app-staging --api-key=$HEROKU_STAGING_API_KEY
|
|
only:
|
|
- master
|
|
```
|
|
|
|
The first line `apt-get update -yq` updates the list of available packages,
|
|
where second `apt-get install -y ruby-dev` installs the Ruby runtime on system.
|
|
The above example is valid for all Debian-compatible systems.
|
|
|
|
## Usage in staging and production
|
|
|
|
It's pretty common in the development workflow to have staging (development) and
|
|
production environments
|
|
|
|
Let's consider the following example: we would like to deploy the `master`
|
|
branch to `staging` and all tags to the `production` environment.
|
|
The final `.gitlab-ci.yml` for that setup would look like this:
|
|
|
|
```yaml
|
|
staging:
|
|
stage: deploy
|
|
script:
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=my-app-staging --api-key=$HEROKU_STAGING_API_KEY
|
|
only:
|
|
- master
|
|
|
|
production:
|
|
stage: deploy
|
|
script:
|
|
- gem install dpl
|
|
- dpl --provider=heroku --app=my-app-production --api-key=$HEROKU_PRODUCTION_API_KEY
|
|
only:
|
|
- tags
|
|
```
|
|
|
|
We created two deploy jobs that are executed on different events:
|
|
|
|
1. `staging` is executed for all commits that were pushed to `master` branch,
|
|
1. `production` is executed for all pushed tags.
|
|
|
|
We also use two secure variables:
|
|
|
|
1. `HEROKU_STAGING_API_KEY` - Heroku API key used to deploy staging app,
|
|
1. `HEROKU_PRODUCTION_API_KEY` - Heroku API key used to deploy production app.
|
|
|
|
## Storing API keys
|
|
|
|
Secure Variables can added by going to your project's
|
|
**Settings ➔ CI / CD ➔ Variables**. The variables that are defined
|
|
in the project settings are sent along with the build script to the Runner.
|
|
The secure variables are stored out of the repository. Never store secrets in
|
|
your project's `.gitlab-ci.yml`. It is also important that the secret's value
|
|
is hidden in the job log.
|
|
|
|
You access added variable by prefixing it's name with `$` (on non-Windows runners)
|
|
or `%` (for Windows Batch runners):
|
|
|
|
1. `$VARIABLE` - use it for non-Windows runners
|
|
1. `%VARIABLE%` - use it for Windows Batch runners
|
|
|
|
Read more about the [CI variables](../../variables/README.md).
|