Pipeline As Code — Yaml based Pipeline Example

Example of a YAML-based pipeline that deploys a simple web application to a Kubernetes cluster:

name: Deploy to Kubernetes

# Define the pipeline stages
stages:
  - build
  - test
  - deploy

# Define the build stage
build:
  stage: build
  script:
    - echo "Building the web application..."
    - make build

# Define the test stage
test:
  stage: test
  script:
    - echo "Running unit tests..."
    - make test

# Define the deploy stage
deploy:
  stage: deploy
  script:
    - echo "Deploying to Kubernetes..."
    - kubectl apply -f k8s-deployment.yaml

This pipeline has three stages: build, test and deploy. In the build stage, it runs the command make build which is responsible for building the web application. In the test stage, it runs the command make test which is responsible for running the unit tests on the built application. In the deploy stage, it runs the command kubectl apply -f k8s-deployment.yaml which deploys the application to a Kubernetes cluster, using the deployment definition stored in the k8s-deployment.yaml file.

It’s worth noting that this is a simple example, and in a real-world scenario, the pipeline would likely include additional steps such as environment variable definition and conditional logic. Also, the pipeline assumes that the user has the necessary permissions to deploy to the target kubernetes cluster and has the kubectl command line tool installed on the machine running the pipeline.