squidpickles

Multiplatform (amd64 and arm) Kubernetes cluster setup

The official guide for setting up Kubernetes using kubeadm works well for clusters of one architecture. But, the main problem that crops up is the kube-proxy image defaults to the architecture of the master node (where kubeadm was run in the first place).

This causes issues when arm nodes join the cluster, as they will try to execute the amd64 version of kube-proxy, and will fail.

It turns out that the pod running kube-proxy is configured using a DaemonSet. With a small edit to the configuration, it's possible to create multiple DaemonSets—one for each architecture.

Steps

Follow the instructions at https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/ for setting up the master node. I've been using Weave Net as the network plugin; it see

bwann

How to tunnel SSH over SSL/TLS

laptop ssh -> laptop stunnel -> evil network -> internet -> your server -> your server ssh

Server (your shell server/home box/work box/whatever)

Sets up a stunnel process listening externally on port 2443/tcp, forwards to localhost 22/tcp

• Install stunnel, e.g. yum install stunnel
• Install server config snippet to /etc/stunnel/stunnel.conf

flibitijibibo

A week ago I was CC'd in on a thread about Linux packaging, and how to avoid doing it the wrong way (i.e. RPM, Deb, etc.). I've always used MojoSetup and I've never forced distributions to do any additional work, but this is still a new concept to a lot of people. Additionally, Amos suggested that I expand on Itch's FNA appendix, so here's a guide on how I package my games.

This is a bit of an expansion on my MAGFest 2016 presentation, which you can find here:

http://www.flibitijibibo.com/magfest2016/

https://www.youtube.com/watch?v=B83CWUh0Log

I would recommend looking at that first! After that, read on...

carlessanagustin

Option 1

- name: compile sources
  shell:
    coffee -o lib -c src 
    chdir=${mysourcedir}
  environment:
    PATH: $PATH:/opt/node/bin

natefoo

Distribution Detection

I am working on adding support for building and distributing (via PyPI) Python Wheels with C Extensions to the Python wheel and pip packages. The discussion on Distutils-SIG continues, but I believe it is fairly certain that some effort to correctly identify Linux distributions will need to be made. I've begun efforts to add this support to wheel.

How you can help

If you have a Linux distribution or version of a listed distribution not in this gist, or one of the ones I have not directly verified, I could use the following:

• The contents of /etc/os-release, if it exists

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname