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=Docker CompositionServices=
==Introduction==
YAML /'jæm.ḷ/ is a human-readable data serialization language. It is commonly used for configuration files, but could be used in many applications where data is being stored (e.g. debugging output) or transmitted (e.g. document headers). YAML targets many of the same communications applications as XML but has a minimal syntax which intentionally breaks compatibility with SGML [1]. It uses both Python-style indentation to indicate nesting, and a more compact format that uses [] for lists and {} for maps making YAML 1.2 a superset of JSON.
Custom data types are allowed, but YAML natively encodes scalars (such as strings, integers, and floats), lists, and associative arrays (also known as hashes, maps, or dictionaries).
=Docker Composition=
==Introduction==
Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration.
Source: https://docs.docker.com/compose/overview/
==Docker compose vs docker stack==
