Paul Dougan pauldougan

Cloud Native buildpacks and Cloud Foundry

Introduction

Cloud Foundry supports two models for running applications in containers:

Cloud Foundry Buildpacks
Cloud Foundry Docker support

Some tenants prefer one of the other and others mix and match.

Notes on Korifi

Taking the first release v0.1.0 of korifi for a spin on a local single node kubernetes cluster. (FYI I recently tested this on 29th Sept 2022 with korifi v0.3.0 and these notes are still valid)

Not yet tested on v0.4.0 which brings helm packaging

TLDR; it can be installed in 14 minutes on a standard GDS macbook pro with 8GB of RAM

Notes on CF k8s controllers

a quick poke at the latest cf-k8s-controllers to see what they have to offer (2022-02-18)

Run a local Cloud Foundry on k8s, make some orgs/spaces and push some apps, check out the cf experience and take a look behind the scenes with kubectl.

My toolkit

what	version	decription

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https://asciinema.org/a/383080

	description	uri
	CCNF buildpacks.io	https://buildpacks.io/
	CNCF pack tool	https://buildpacks.io/docs/tools/pack/
	Cloud Foundry buildpacks Slack
	Cloud Foundry buildpacks docs	https://docs.cloudfoundry.org/buildpacks/
	GOV.UK PaaS Prometheus buildpack	https://github.com/alphagov/prometheus-buildpack
	GOV.UK PaaS Rust buildpack	https://github.com/alphagov/cf-buildpack-rust/
	Heroku buildpacks	https://devcenter.heroku.com/articles/buildpacks#officially-supported-buildpacks
	Packeto buildpack home	https://paketo.io/
	Paketo buildpacks Slack

Visidata examples

Visidata https://www.visidata.org/ is a useful general purpose data wrangling tool, read the introduction to understand more or check out the github repo.

There are many uses for the tool and here are a few examples

Zendesk API documentation

The zendesk api documentation lists the fields returned by the tickets endpoint at https://developer.zendesk.com/rest_api/docs/support/tickets

	#!/usr/bin/env bash
	k8s_image='kindest/node:v1.22.9@sha256:8135260b959dfe320206eb36b3aeda9cffcb262f4b44cda6b33f7bb73f453105'

	set -euo pipefail

	ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
	SCRIPT_DIR="${ROOT_DIR}/scripts"
	API_DIR="${ROOT_DIR}/api"
	CONTROLLER_DIR="${ROOT_DIR}/controllers"
	export PATH="${PATH}:${API_DIR}/bin"

	csvkit
	frictionless
	matplotlib
	numpy
	odo
	pandas
	pygsheets
	seaborn
	sparklines
	visidata

	!#/usr/bin/env bash
	# curl -sL http://bit.ly/dougapd-setup-ubuntu \| bash

	PACKAGES=figlet
	echo Setup ubuntu
	apt-get install $PACKAGES

	# add the Cloud Foundry Foundation public key and package repository to your system
	wget -q -O - https://packages.cloudfoundry.org/debian/cli.cloudfoundry.org.key \| sudo apt-key add -
	echo "deb https://packages.cloudfoundry.org/debian stable main" \| sudo tee /etc/apt/sources.list.d/cloudfoundry-cli.list