Reusing data with YAML Anchors, Aliases and Merge Keys

ex_merge_key_airflow.yaml

defaults:
  envs: &envs_defaults
    ENVIRONMENT: prod
    DATE: "{{ ds }}"

  task: &task_defaults
    type: my_type
    envs: *envs_defaults

tasks:
  - <<: *job_defaults 
    name: my_task_1
    envs:
      <<: *task_defaults
      var_3: my_var_3

  - type: docker
    name: my_name
    command: >
      mycommand arg1 arg2
      --import my_path
      --version {{var.value.my_version}}