ytt

README

ytt (YAML Templating Tool)

• Website: https://get-ytt.io
• Slack: #k14s in Kubernetes slack

ytt is a templating tool that understands YAML structure allowing you to focus on your data instead of how to properly escape it.

Features:

• templating works on YAML structure (instead of text)
  • which eliminates variety of problems such as invalid YAML formatting, escaping, etc.
• syntactic sugar for single YAML node conditionals and for loops
  • makes it easier to read densely conditioned templates
• templates are themselves valid YAML files
  • makes them friendly to existing editors and YAML tools
• includes sandboxed "fully featured" Python-like programming language
• allows configuration modularization via functions and libraries

Try out online playground or download latest binaries from Releases page (playground is included via ytt website command).

Docs

• Language
• Security
• ytt vs X: How ytt is different from other tools / frameworks
• Blog posts
  • ytt: The YAML Templating Tool that simplifies complex configuration management
• Talks
  • Introducing the YAML Templating Tool (ytt) on IBM Developer podcast

Install

Grab prebuilt binaries from the Releases page.

Try it

ytt -f examples/playground/example-demo/
ytt -f examples/playground/example-demo/ --output tmp/

See examples/playground/ for examples shown on get-ytt.io.

Development

./hack/build.sh
./hack/test-unit.sh
./hack/test-e2e.sh
./hack/test-all.sh

# include goog analytics in 'ytt website' command for https://get-ytt.io
# (goog analytics is _not_ included in release binaries)
BUILD_VALUES=./hack/build-values-get-ytt-io.yml ./hack/build.sh