File: read_module_protocol.cf

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bundle agent cache_maintenance
# Creates a module protocol cache, refreshes it if minute is 30-35
{
    vars:
      "file"
        string => "$(this.promise_dirname)/cached_module";

  classes:
    "cache_refresh"
      if => not(fileexists("$(file)"));
    Min30_35::
      "cache_refresh";

  files:
    cache_refresh::
      "$(file)"
        create => "true",
        edit_template_string => "=my_variable=$(sys.date)",
        template_data => "{}",
        template_method => "inline_mustache";
}

bundle agent demo
# Demonstrates read_module_protocol function, prints a variable from it
{
    classes:
      "cache_was_read"
        if => read_module_protocol("$(cache_maintenance.file)");

    reports:
      cache_was_read::
        "Module cache was read!";
        "cached_module.my_variable = $(cached_module.my_variable)";
}


bundle agent __main__
{
  methods:
    "cache_maintenance"
      handle => "cache_maintenance_done";
    "demo"
      depends_on => { "cache_maintenance_done" };
}