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As you can see in our previous posts, having a complete pipeline to introduce DevOps in your day-to-day live is easy with Clarive’s Rulebook.

You just have to follow these three simple steps:
1. Get your free Clarive cloud instance
2. Upload your code to your Clarive Project repository.
3. Prepare your rulebook, push your commit and enjoy! (oops, maybe four steps would have been better :))

So let’s get down to business: we will detail the needed code.

Defining our variables

First, we declare the variables that will be used throughout our pipeline process.

vars:
  - workspace: "${project}/${repository}"
  - server:  https://<my-clarive>.clarive.io
  - art_path: ${server}/artifacts/repo/${project}

Building our application

In this step, we choose Elixir Docker image using Mix as a building tool.

build:
  do:
    - image:
         name: 'elixir'
         runner: 'bash'

     - shell [Compile application]: |
         cd {{ workspace }}
         mix compile
         tar cvf ${project}_${job}.tar _build/dev/lib/

And publish the compiled application to our artifact repository.

    - artifact_repo = publish:
        repository: Public
        to: '${art_path}'
        from: '{{ workspace }}/${project}_${job}.tar'
    - log:
        level: info
        msg: Application build finished

Ready to test

As long as we have our own application tests, this step is as simple as running the right command.

test:
  do:
    - image:
         name: 'elixir'
         runner: 'bash'

     - shell: |
         cd {{ workspace }}
         mix test

Deploy wherever we want

Now, it’s time to choose where our app will run. For example, send the tar file to another server and run the app.

deploy:
  do:
   - ship:
       from: '${art_path}/${project}_${job}.tar'
       to: /tmp/remotepath/
       host: ${remote_server}
  - shell:
      cd /tmp/remotepath/
      tar -xvf ${project}_${job}.tar
      mix run

This remote_server could be an AWS instance in PROD environment or another Docker container just to QA.

Happy Ending

Now with our .yml file already prepared, we can use Clarive’s interface to visualize the steps that will follow the finalizing of the rulebook.
To start the deployment, we only need to perform the push on the repository, just as we have seen before in other posts. When performing the push, Clarive automatically creates a deployment (Continuous Integration) and executes all the code found in the .clarive.yml.


Visit Clarive documentation to learn more about the features of this tool.