basics-docs/YAML Basics.txt at master · lwooden/basics-docs · GitHub

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Flow Style
--------------

host: sandbox3.local
datacenter: { location: Herndon , rack: 7 , row: 1 }
roles: [ webserver , database ]


Block Style
--------------

%TAG ! tag:hostdata:alx:    # setting a local tag
---                                        # Multi-Document Stream - Alexandria host data
host: sandbox.local
datacenter:
  location: ! ALX Alexandria
  rack: !!str 6                      #changes data-type to string w/o using quotes
  row: 1
roles: &wphost                  # the anchor allows me to reuse data in my file
  - webserver
  - database
downtime_sch: |                 # use | for literal style; uses new lines
  2018-10-31 - kernal upgrade
  2019-02-02 - security fix
comments: >                      # use > for folded style; replaces newlines with spaces
  Experience high I/O
  since 2018-10-01.
  Currently investigating.
---                                      # Next Document
host: sandbox2.local
datacenter:
  location: Alexandria
  rack: 6
  row: 2
...                                       # End of Alexandria Data Stream. Signals the end of the this document without closing the data stream
---                                      # Next Document
host: sandbox3.local         # Washington DC host data
datacenter:
  location: Washington DC
  rack: 1
  row: 1
roles: *wphost                   # this will inherit the values of my anchor above
...                                      # End of Washington DC Data Stream