YAML

How it is used

Pronounced 'YAM-ul'. Used for Kubernetes manifests, GitHub Actions and GitLab CI pipelines, Ansible playbooks and Docker Compose files. Indentation must use spaces, never tabs, and one wrong space can break a file.

Example sentences

1. The pipeline failed because of a single wrong indent in the YAML file.

2. Run a linter on your YAML before you push it.

Common collocations

• YAML file
• YAML manifest
• YAML syntax
• edit the YAML

Related terms

• KubernetesAn open-source system that runs and manages containers across many machines: it starts them, restarts failed ones, spreads traffic and scales them up or down.
• configuration managementUsing tools to keep the software, settings and files on many servers in a known, consistent state, instead of changing each server by hand.
• pipelineAn automated series of steps, such as building, testing and deploying, that runs every time code changes and stops if one step fails.
• infrastructure as codeManaging servers, networks and other cloud resources by writing configuration files that tools read and apply, instead of clicking through a console by hand.

This word in other fields

The same English word can have a different meaning in another field:

• YAML · Software Engineering

More terms: Infrastructure as Code

• provision
• Terraform