drnic

Distributing sidecars with buildpacks

Slides are at https://speakerdeck.com/drnic/distributing-cloud-foundry-sidecars-with-buildpacks

What are sidecars? How to use them in Cloud Foundry? - by Tim Downey

Intro to sidecars from last CAB

• until recently a running app container only ran and monitored a single process
• You could manually fork off child processs but they weren’t monitored (static file buildpack starts nginx and also starts cat-ting logs to stdout
• Secondary processes inside containers are now first class citizens

drnic

#!/bin/bash

export BOSH_DEPLOYMENT=${CF_DEPLOYMENT:-cf}

# https://github.com/cloudfoundry/cf-deployment/blob/v7.11.0/operations/use-compiled-releases.yml#L1-L9
capi_update=$(cat <<-YAML
- type: replace
  path: /releases/name=capi/url
  value: https://storage.googleapis.com/cf-deployment-compiled-releases/capi-1.79.0-ubuntu-xenial-250.29-20190411-165538-039089481.tgz
- type: replace

drnic

source "https://rubygems.org"

gem "sinatra"

drnic

OSD

./Tools/autotest/sim_vehicle.py -v ArduPlane -L CMAC --map --console --osd
...
Missing SFML libraries - please install libsfml-dev

--osd flag requires libsfml-dev, which can be installed with homebrew sfml package:

drnic

References:

• https://github.com/moby/moby/issues/8710#issuecomment-443001679
• https://blog.jessfraz.com/post/docker-containers-on-the-desktop/
• https://sourabhbajaj.com/blog/2017/02/07/gui-applications-docker-mac/

socat TCP-LISTEN:6000,reuseaddr,fork UNIX-CLIENT:\"$DISPLAY\" &

drnic

Ardupilot Simulation (SITL - Simulation In The Loop) allows for safe testing of experimental code and settings and crashing virtual vehicles is a lot cheaper than crashing real ones!

It was written for X11/Linux. Fortunately thanks to Vagrant and XQuartz it can be run on MacOS.

• https://www.xquartz.org/
• https://www.vagrantup.com/downloads.html
• https://www.virtualbox.org/wiki/Downloads

drnic

apiVersion: build.knative.dev/v1alpha1
kind: Build
metadata:
  creationTimestamp: 2018-11-11T23:25:45Z
  generateName: simple-app-
  generation: 1
  name: simple-app-7s8pf
  namespace: default
  resourceVersion: "14435"
  selfLink: /apis/build.knative.dev/v1alpha1/namespaces/default/builds/simple-app-7s8pf

drnic

#!/bin/bash

set -eu

export CLUSTER_NAME=${CLUSTER_NAME:-knative}
export CLUSTER_REGION=${CLUSTER_REGION:-us-west1}
export CLUSTER_ZONE=${CLUSTER_ZONE:-us-west1-c}

usage() {
    echo "Bootstrap Kube/Helm/Knative on GKE"

drnic

var martinez = require('martinez-polygon-clipping');

// https://skyvector.com/?fpl=3529S14100E%203556S14216E%203557S14217E%203558S14222E%203650S14259E%203658S14256E%203730S14251E%203720S14319E%203714S14356E%203705S14444E%203712S14510E%203627S14548E%203559S14623E%203553S14610E%203544S14547E%203535S14525E%203526S14502E%203516S14440E%203507S14417E%203458S14355E%203448S14333E%203438S14311E%203429S14249E%203419S14227E%203409S14205E%203359S14143E%203349S14122E%203339S14100E%203529S14100E
var big = [ [ 141, -35.49 ],
  [ 142.27, -35.93 ],
  [ 142.28, -35.95 ],
  [ 142.37, -35.97 ],
  [ 142.98, -36.83 ],
  [ 142.93, -36.97 ],
  [ 142.85, -37.5 ],

drnic

curl -sL https://gist.githubusercontent.com/drnic/b42bbcda9b47bd2241cdc41cdfd4abed/raw/c5c2e27377c43bdd04dd86463ca48cce3677580d/run.sh | bash