What is deployment used for?

Deployment is used for releasing (deploying) software to target environments. This can be a testing, pre-production, or production environment.

Main goals:

• Delivering new features to end users.
• Bug fixes.
• Updating dependencies, libraries, or infrastructure.
• Scaling applications.
• Improving performance or security.

Deployment involves various stages:

• Building the application artifacts.
• Testing these artifacts.
• Packaging for convenient deployment (e.g., in a Docker image).
• Deploying to the target environment.
• Monitoring after deployment.

Different deployment strategies (e.g., Blue/Green, Canary) are used to minimize risk and downtime.

# Example of a deployment command in Kubernetes using kubectl
kubectl apply -f deployment.yaml