How do you use parameters?

[carolynvs]

I'm looking for feedback on how you use parameters with your bundle. Let's say you had a bundle with a parameter: logLevel.

1. Install the bundle and don't specify the logLevel parameter. It uses the default value in the bundle.
2. You realize you need ALL THE LOGS so you run porter upgrade --param logLevel=11
3. Now you need to update to the latest version of the app. So you run porter upgrade but do not specify the logLevel.

Questions

• Did you want/expect logLevel to get reset back to the bundle default since you didn't specify this value?
• Did you want/hope that logLevel would use the last parameter value passed, and would therefore stay at 11?

Alternate scenario with parameter sets:

1. Install the bundle and use a parameter set that specifies all the parameters. The logLevel is 1.
2. You realize you need ALL THE LOGS so do you
   a. Run porter upgrade --param logLevel=11 OR
   b. Set logLevel to 11 in your parameter set and run porter upgrade -p myparamset?
3. You update the app to the latest version with porter upgrade -p myparamset. What do you expect to happen to the logLevel?

What I am trying to feel out is do you want your parameters persisted with the installation? Or do you prefer to keep them all in a file (similar to helm's value.yaml file)?