Architecture #13622
Updated by Alexis Mousset about 6 years ago
This lib will be part of 20_cfe_basics.
It will allow storing a persisting database of flags that will be usable in the agents. Flags are somehow like persistent conditions but:
* They have no expiration date
* They are kept when resetting agent state
This will allow use cases like executing a command only once on a system.
The storage format will be a json file containing:
<pre>
{
"flag_name_1": { "created": "20181008-...." },
"flag_name_2": { "created": "20181008-...." }
}
</pre>
The file is by default in @/var/rudder/agent-data/flags.json@, and configurable in @ncf.conf@.
This library should provide methods to:
* Load the flags into a variable
* Reserve a flag (set the persistent class, fails of already present)
* Set a flag
* (Get a flag)
* (Unset a flag)