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summit-training-classes's Introduction

Cloud Foundry Foundation Training

This repo contains the three open sourced training classes run at Cloud Foundry Foundation Summits.

See the README.md file in each subdirectory for details on how to build the materials...

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summit-training-classes's Issues

cf push --no-start is misrendered in the instructions

What

In http://zero-to-hero.engineerbetter.com/labs/state/, the --no-start flag is rendered as โ€“no-start.

Why is this a problem

cf push doesn't complain when providing a -no-start flag. It looks like it worked... until the start fails. This confused a student and myself at a zero for hero for underrepresented groups, and it wasn't obvious because an en dash is hard to distinguish from a single normal dash.

Why is this happening

https://github.com/cloudfoundry/summit-training-classes/blob/master/basics/site/content/labs/state.md does say --no-start. Presumably Hugo or its Markdown engine is munging the -- into an en dash.

I couldn't get the lab HTML files to build so I can't submit a PR, but I wonder if a tactically-deployed backslash might fix this.

Feature flags are enabling platform features not app features

As part of the route section, and blue/green deployment among version 1.0 and 1.1 or an application.

* Use [feature flags](https://docs.cloudfoundry.org/adminguide/listing-feature-flags.html) instead of ENV vars for new features
mentions the following

Use feature flags instead of ENV vars for new features

This implictly implies that CF feature flags are a way to turn on feature flags in applications instead of relying on enviroment variables or other app specific mechanism such as external configuration (spring cloud config server).

However, CF feature flags are a way to turn on Cf features (usually by pass admins) and not a way for app teams to turn on/off their own app features.

It might be more appropriate to point to app-specific mechanism to support feature flags such as libraries such as https://www.togglz.org/ or spring cloud config server

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