CI/CD for Haskell

đź“š Learn more about Haskell action features, integrations and alternatives.

With Buddy, you can create a pipeline that builds, tests, and deploys Haskell applications on a push to Git. The configuration is super simple and takes 10 to 15 minutes.

Go pipeline exampleGo pipeline example

1. Select your Git repository

Buddy supports all popular Git hosting providers, including GitHub, Bitbucket, and GitLab. You can also use your own private Git server, or host code directly on Buddy.

Supported Git providersSupported Git providers

2. Add a new delivery pipeline

Enter the pipeline's name, select the trigger mode, and define the branch from which Buddy will fetch your code:

Adding a new pipelineAdding a new pipeline

Trigger modes

  • Manually (on click) — recommended for Production
  • On events (automatic) — recommended for Development
  • On schedule (on time interval) — recommended for Staging/Testing
Event-based triggers allow you to run pipelines whenever a push is made to any branch in the repository, or whenever a branch, tag or a pull request is created or deleted. On event pipeline trigger modeOn event pipeline trigger mode

3. Add actions

Buddy lets you choose from dozens of predefined actions. In this example, we'll add 4 actions that will perform the following tasks:

  • Build and test your Haskell application
  • Upload code to server
  • Run db migrations & restart server
  • Send notification to Slack

3.1 Build and test your Haskell app

Build actions in Buddy are run in isolated containers run from official Docker images. When the pipeline is run, Buddy pulls the container, runs build commands, and uploads the results to the pipeline filesystem.

Look up and click Haskell on the action list to add it to the pipeline:

Action listAction list

The Run tab lets you determine the commands to execute. The default commands are:

cabal update
cabal install --only-dependencies --enable-tests
cabal configure --enable-tests
cabal build
cabal test$$$$$

Haskell default build commandsHaskell default build commands

3.1.2 Haskell version

You can change the version of Haskell and install missing packages & tools in the runtime environment tab:

Haskell action imageHaskell action image

If your tests require a database to run, you can attach it in the Services tab: Services tabServices tab

3.2 Deploy application to server

The built app needs to be uploaded to the server. Head to the Transfer section and select your deployment action (SFTP in our case):

File transfer actionsFile transfer actions

When adding the action you can choose what and where should be uploaded:

Setting up an SFTP actionSetting up an SFTP action

3.3 Run db migrations & restart server

Once the app is deployed, you can run additional commands on your server with the SSH action:

SSH action selectionSSH action selection

Enter the commands to execute and configure authentication details:

Command consoleCommand console

3.4 Send notification to Slack

You can configure Buddy to send your team a message after the deployment. In this example we'll use Slack:

Notification actionsNotification actions

If you add this action in the On Failure tab, Buddy will only send the message if something goes wrong with your build or deployment. On failure notificationOn failure notification

4. Summary

Congratulations! You have just automated your entire delivery process. Make a push to the selected branch and watch Buddy fetch, build, and deploy your project. With Continuous Delivery applied, you can now focus on what's really important: developing awesome apps! 🔥

Bear in mind that this article is only a brief example of what Buddy can do. You can create additional pipelines for staging and production environments, integrate with your favorite services (AWS, Google, Azure), trigger tests on pull requests, build Docker images, and push them to the registry—the possibilities are unlimited.
If you want us to create a delivery pipeline for your project, drop a line to support@buddy.works – we'll be happy to help!

Last modified on November 13, 2023

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