env

(OPTIONAL)
This is a definition of environment variables. These variables will be available within the running docker containers, similar to executing docker run -e. Also refer to the documentation of each Docker image to learn which environment variables it supports.

Example:

env:
  - FIRST_VARIABLE: "first"
  - SECOND_VARIABLE: "second"
  - NUMERIC_VARIABLE: "123"
  - MYSQL_ROOT_PASSWORD: "secr3t"
  - MYSQL_USER: "username"
  - MYSQL_PASSWORD: "password"
  - MYSQL_DATABASE: "db-name"

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