foostitch 1.1.0

A utility for assembling cloud-init user-data from a repository of templates.

foostitch

Command-Line Usage

usage: foostitch [option]* [recipe]
    -o, --output-file arg              filename for output
    -c, --configuration-file arg       filename for configuration
    -t, --template-directory           directory with templates

    recipe                             recipe name

Configuration (aka Recipe) File Format

• loads configuration files with the following priority (highest to lowest):
  • files specified on the command line
  • ./.foostitch
  • ~/.foostitch
  • /etc/foostitch
• a JSON file of an object
  • if the key is "*"
    • the value is an object that is the base context for all recipes
  • otherwise
    • the key is the name of a recipe
    • the value is a recipe
• a recipe is an array
  • if the first item is an object, that object overlays the base context for that recipe
  • if an item is a string
    • if the string begins with "*", the remainder of the string is the name of a recipe to include at this point in the recipe
    • otherwise, the string is the filename of a foostache template; the filename path is relative to a template directory
  • if the item following a string is an object, that object overlays the base context for that item

Template Files

• looks for templates in the following order:
  • directories specified on the command line
  • ./.foostitch-templates
  • ~/.foostitch-templates
  • /etc/foostitch-templates

Configuration File

CONFIG_FILE: {
    "*": CONTEXT
    RECIPE_NAME: RECIPE
}

RECIPE: [ CONTEXT?, (STEP, CONTEXT?)* ]

STEP:
    "*RECIPE_NAME"
    "TEMPLATE_FILENAME"

In a configuration file, the "*" context is the base context for everything contained in the file. ([cfg])

In a recipe, if there is an initial context, it is applied to the file context to become the recipe context. ([recipe, cfg])

In a step, if there is a context, it is applied to the recipe context to become the step context. ([tmpl, recipe, cfg]) If the step is an embedded recipe, the step context is applied to each step in the embedded recipe.