YAML Cheat Sheet

# This is a comment
# YAML is case sensitive

---
# Document content
key: value

---
doc: 1
---
doc: 2
---
doc: 3

---
key: value
...

name: John Doe
quoted: "with spaces"
single: 'also quoted'

literal: |
  Line 1
  Line 2
folded: >
  This will
  be folded

integer: 42
float: 3.14
scientific: 1.2e+3
octal: 0o14
hex: 0xC

yes_value: true
no_value: false
also_yes: yes
also_no: no

empty: null
also_empty: ~
implicit_null:

fruits:
  - apple
  - banana
  - orange

numbers: [1, 2, 3, 4, 5]

person:
  name: John
  age: 30
  city: NYC

person: {name: John, age: 30}

users:
  - name: Alice
    roles:
      - admin
      - user
  - name: Bob
    roles:
      - user

defaults: &defaults
  adapter: postgres
  host: localhost

development:
  <<: *defaults
  database: dev_db

common: &base
  name: app

dev:
  <<: *base
  debug: true

prod:
  <<: *base
  debug: false

- &item1
  name: first
- &item2
  name: second

refs:
  - *item1
  - *item2

explicit_string: !!str 123
# Value is "123" not 123

number: !!int "42"
# Converts "42" to 42

float_number: !!float "3.14"

bool_value: !!bool "yes"

null_value: !!null ""

common: &common
  type: base

specific:
  <<: *common
  name: special

set: !!set
  ? item1
  ? item2
  ? item3

ordered: !!omap
  - first: 1
  - second: 2
  - third: 3

picture: !!binary |
  R0lGODlhDAAMAIQAAP//9/X
  17unp5WZmZgAAAOfn515eXv

special: "Quote: \" and backslash: \\"
unicode: "\u0041"  # A

literal: |
  First line
  Second line
  Third line

folded: >
  This is a long
  sentence that will
  be folded

strip: |-
  No final
  newline

keep: |+
  Multiple
  final
  
  newlines

version: '3'
services:
  web:
    image: nginx
    ports:
      - "80:80"

apiVersion: v1
kind: Pod
metadata:
  name: my-pod
spec:
  containers:
  - name: app
    image: nginx

stages:
  - build
  - test
  - deploy

build:
  stage: build
  script:
    - make build