What are GitLab CI variables and how do I use them?

What are GitLab CI variables and how do I use them?

GitLab CI variables are key-value pairs that can be used to customize your CI/CD pipelines. They allow you to store configuration settings, secrets, and other data that can be reused across jobs.

Can you give me an example of how to define a variable in my .gitlab-ci.yml file?

Sure! You can define a variable in your .gitlab-ci.yml file like this:

variables:
  MY_VARIABLE: 'some_value'

This variable can then be accessed in your jobs using $MY_VARIABLE.

How do I use environment variables in GitLab CI?

You can use environment variables by defining them in the GitLab UI under your project settings or directly in the .gitlab-ci.yml file. They can be accessed in your scripts just like regular variables.

Are there any predefined variables in GitLab CI?

Yes, GitLab CI provides several predefined variables, such as CI_COMMIT_SHA, CI_PIPELINE_ID, and CI_PROJECT_NAME, which you can use in your CI/CD jobs.