/ytt-ordering

Example of ways to manage ytt file processing ordering

Primary LanguageShell

ytt File Order Processing

A crafted example for exploring how ytt determines the order in which to process files.

Using...

  1. Download or clone this repo
  2. Install ytt 
    $ brew install vmware-tanzu/carvel/ytt
  3. Study the directory structure 
    $ tree fruit/
  4. Run one of the supplied scripts: 
    $ ./default_ordering.sh
  5. Compare the output you see to the order rules described below.

ytt File Processing Ordering Rules

ytt processes files in order in this way:

  1. by type — entire sets based on type: schema files first, then data values overlays, then templates, then finally overlays. (illustrated in the “How it Works” page)
  2. by CLI argument order — files are first grouped by the order in which they came from a -f flag (files from left-most -f are processed first).
  3. alphabetically — within each of those groups, files are processed in order by their entire file path, lexicographically. (i.e. files are grouped into directories naturally because they sort together).