npx pepr logs

[cmwylie19]

Is your feature request related to a problem? Please describe.

I'd like to be able to use a Pepr CLI command to pull easy-to-read Pepr Controller logs from a cluster.

Describe the solution you'd like

One of the primary methods of troubleshooting Pepr Modules is to "check the logs" when something unexpected happens. The current method for doing so is to dump pod logs via kubectl and, while that works, the experience isn't awesome:

• pods use dynamic, generated names (which requires a query to lookup),
• there are multiple pods to pull logs from (requiring multiple queries),
• there are multiple ways to pull logs and not all of them return all logs.

An awesome experience would instead:

• be easy to use (like running a single command),
• get all interesting logs (from all pods),
• and present logs in an easy to read way.

Therefore:

• Given a Pepr Module running in a cluster

• When I run the npx pepr logs --help

• Then I see a nicely formatted set of options for querying for Pepr logs (per-pod, unified, colored, etc.)

• And I run the npx pepr logs

• Then I get a nicely readable, unified, time-ordered set of logs

Describe alternatives you've considered

• leave things as they are and coach people through known-gotchas K8s query gotchas (like having to ask for ALL logs) -- ick, or
• publish a "how to" in the Pepr docs about how to "correctly" get logs from Pepr -- also ick.

[cmwylie19]

Log Levels

• fatal - only used in CLI , we never want the controller to crash.
• debug - Used in development or debugging errors
• info - Daily operation
• error - only used in CLI , we never want the controller to crash.
• warn - info level or when an error is caught and there is a remedy.

Logger

• console - Used in the CLI
  • info,debug,log - alias for console log, stdOut
  • warn,error - alias for console error, stdErr
• pino - Used in the controller

[cmwylie19]

adding this to on-hold because we have not had any requests around this and we would need more info on the desired implementation. uds-cli has a monitor command and pepr does too, not sure if this is enough?