Correct way to use config file?

[nosjojo]

I've got a series of programs that are communicating over pub/sub and events, and I wanted to use a global config so that I could simply my definitions. From what I understand in the docs, setting up a global config should cause all instances to use those settings.

I created a file and load it with Config::setup_global_config_from_file(path). This seems to work, I don't get errors, but when my other programs run they throw a bunch of warnings stating "Default config file found but unable to read data, populate config with default values.".

I'm not on the newest build, so I don't know if this warning is coming from #437 or if it's actually having a problem loading my file. Is there anything else to it besides loading the file?

Also, as an aside note: I don't think any example config files are bundled in the crate when it's pulled. I had a hell of a time getting the yaml file correct because I'm on an airgapped PC and can't just reference the source to copy your template. It might be useful to bundle that in the crate so others can easily reference it too.

[elfenpiff]

@nosjojo Could you try calling:

let custom_config = Config::from_file(
    &FilePath::new(b"my/custom/config/file.toml")?)?;
    
let node = NodeBuilder::new()
    // provide custom object to the node
    .config(&custom_config) 
    .create::<ipc::Service>()?;

and tell me if this works.

I'm not on the newest build, so I don't know if this warning is coming from #437 or if it's actually having a problem loading my file. Is there anything else to it besides loading the file?

When you call set_log_level(LogLevel::Trace); before you load the config file you should get the full log output and with it maybe some pointers what is wrong with the config file.

Also, as an aside note: I don't think any example config files are bundled in the crate when it's pulled.

This is correct. We still have some work to do with the config file. The idea is that you can store the config file in any of the usual XDG config paths like /etc, $HOME/.config etc. We have to add this to the platform.

I had a hell of a time getting the yaml file correct because I'm on an airgapped PC and can't just reference the source to copy your template.

Did you mean toml? Why couldn't you use the file from here: https://github.com/eclipse-iceoryx/iceoryx2/blob/main/config/iceoryx2.toml . Is this what you meant with airgapped PC that you didn't have access to github?