yaml_anchors

Anchors

Anchors:

• Store and reuse data
• Anchor names can be used
• Define anchor with &
• Reference anchor data with *
• Anchor a single scalar:

---
host: phl-42
datacenter:
  location: &PHL Philadelpia
---
host: phl-43
datacenter: *PHL

• Or a collection:

---
roles: &wphost
  - webserver
  - wp_database
...
---
roles: *wphost