Pepr Excellent Examples

This repository is a collection of examples exercising the capabilities of Pepr.

Here, you'll find practical implementations of Pepr Modules to cover various scenarios. Whether you're new to Pepr or an experienced user, these examples will help you understand how to build and deploy applications effectively.

Exercising the Examples

Most examples are designed around a test suite that demonstrates / verifies how they work.

To run all example suites:

npm run test:e2e

To run a single example suite, specify which to run using -w flag:

# npm run test:e2e -w <npm module name>

npm run test:e2e -w hello-pepr-validate

To run a subset of tests, give Jest the specifics via the --passthru flag:

# npm run test:e2e -w <npm module name> -- --passthru="<jest flags>"

npm run test:e2e -w hello-pepr-validate -- --passthru="--testNamePattern='validate creates'"

Digging In

Viewing an Example Cluster (via K9s)

# KUBECONFIG=$(k3d kubeconfig write pexex-<npm module name>-e2e) k9s

KUBECONFIG=$(k3d kubeconfig write pexex-hello-pepr-watch-e2e) k9s

Note: the tests will automatically clean these clusters up when they complete, so be sure to Ctrl+C-out of a running suite if you wanna poke around!

Testing with a development version of the Pepr controller

To run all example suites against a custom version of the Pepr controller, specify an image tag using the --image flag:

npm run test:e2e -- --image pepr:dev

Testing with a development version of the Pepr lib

You can use the symbolic linking to swap-in a development version of the pepr package when building the excellent examples -- a particularly useful ability when co-developing new Pepr features + associated examples.

Setup

cd <pepr>
npm run build

cd <pepr-excellent-examples>
npm install
rm -rf node_modules/pepr
ln -s <pepr> node_modules/pepr

Cleanup

cd <pepr-excellent-examples>
rm -rf node_modules
npm install