What is a Github workflow?
Hi, in this post we are going to know what is a Github workflow and how can be useful for our projects.
The GitHub Actions platform include:
- Workflows
- Events
- Jobs
- Runners
- Actions
What is a workflow?
A workflow is a configurable automated process that will run one or more jobs.
Workflows are defined by a YAML file checked in to your repository
This is how a Workflow looks like (YAML file):
The workflow will run triggered by an event in your repository, or they can be triggered manually, or at a defined schedule.
Where can I define the workflows?
.github/workflows directory in a repository, a repository can have multiple workflow
Examples of workflows:
- one workflow to build and test pull requests (file)
- another workflow to deploy your application every time a release is created (file)
- another workflow that adds a label every time someone opens a new issue. (file)
- another workflow (file)…
- another workflow (file)…
What is an event in a workflow?
An event is a specific activity in a repository that triggers a workflow run. For example, activity can originate from GitHub when someone creates a pull request, opens an issue, or pushes a commit to a repository.
So, in this means that every-time that we push something to master branch then the workflow will be executed.
What is a Job in a workflow?
A job is a set of steps in a workflow that is executed on the same runner. by default, jobs have no dependencies and run in parallel with each other.
What is an action in a workflow?
An action is a custom application for the GitHub Actions platform that performs a complex but frequently repeated task.
What is a runner in a workflow?
A runner is a server that runs your workflows when they’re triggered. Each runner can run a single job at a time. GitHub provides Ubuntu Linux, Microsoft Windows, and macOS runners to run your workflows; each workflow run executes in a fresh, newly-provisioned virtual machine.
By Cristina Rojas.
