YAML

YAML Ain't Markup Language
- yaml.org
- yaml.org/spec/1.2.2
  - 2021-10-01
参考
- kubernetes.io/docs/reference/encodings/kyaml
  - a safer and less ambiguous subset of YAML
  - Kubernetes v1.34+
  - 要求 {}, [] 和双引号
  - 接近 JSON
  - kubectl get -o kyaml svc hostnames

yaml

# "1 2"
s0: 1
  2
# " 1 2"
s1: '
  1
  2'

# "1\n2\n"
a0: |
  1
  2
# "1\n2"
a1: |-
  1
  2

# "1 2\n"
b0: >
  1
  2
# "1 2"
b1: >-
  1
  2
# "1\n2\n\n"
b2: >+
  1

  2
# "  1\n\n  2"
b3: >2-
    1

    2

.x: &x
  x: 1
  y: 1
# x 均 = 0
x0:
  x: 0
  <<: *x
x1:
  <<: *x
  x: 0

换行转空格 - >
保留换行 - |
默认结尾保留单换行
移除结尾换行 - -
保留结尾换行 - +
保留结尾换行 - -
<<
- yaml.org/type/merge.html
- << : *CENTER
- << : [ *CENTER, *BIG ]
yaml-multiline.info

yaml

---
!!omap
- a: 1
- b: 1

json

[
  ["a", 1],
  ["b", 1]
]

关联信息

参考资料