Table of Contents
Variables
Table of Contents
How do I pass a data type variable?
Data type variables also known as "data containers" are passed using the same syntax as passing a list.
bundle agent example
{
vars:
# First you must have a data type variable, define it inline or read from a
# file using `readjson()`.
"data" data => parsejson('[ { "x": 1 }, { "y": 2 } ]');
methods:
"use data"
usebundle => use_data(@(data));
}
bundle agent use_data(dc)
{
vars:
# Use the data
# Get its keys, or its index
"dc_index" slist => getindices(dc);
classes:
"have_x" expression => isvariable("dc[$(dc_index)][x]");
"have_z" expression => isvariable("dc[$(dc_index)][z]");
reports:
"CFEngine version '$(sys.cf_version)'";
have_x::
"Index '$(dc_index)' has key for x";
have_z::
"Index '$(dc_index)' has key for z";
}
$ cf-agent -Kf ./example.cf -b example
R: CFEngine version '3.6.4'
R: Index '0' has key for x
R: Index '1' has key for x