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#!/usr/bin/env ruby
# Place in your project (don't forget to chmod +x):
# bin/autoload-check
# Allow these files to be fixed later
allowlist = [
"ExampleClass" # why?
]
@jjb
jjb / file.md
Last active October 27, 2025 03:31
Using Jemalloc 5 with Ruby.md

For years, people have been using jemalloc with ruby. There were various benchmarks and discussions. Legend had it that Jemalloc 5 didn't work as well as Jemalloc 3.

Then, one day, hope appeared on the horizon. @wjordan offered a config for Jemalloc 5.

Ubuntu/Debian

FROM ruby:3.1.2-bullseye
RUN apt-get update ; \
@reecestart
reecestart / describe-rds-private-ips.py
Last active April 30, 2024 17:40
Will print out RDS DB Instance DB Identifiers with their ENI and Private IP. Will only work if one SG is used per RDS DB (EDIT: Updated to work for DB Clusters e.g. Aurora Serverless)
import boto3
ec2_client = boto3.client('ec2')
rds_client = boto3.client('rds')
rdsNetworkInterfaces = ec2_client.describe_network_interfaces(
Filters=[
{
'Name': 'attachment.instance-owner-id',
'Values': [
@squidpickles
squidpickles / README.md
Last active June 28, 2025 05:44
Multi-platform (amd64 and arm) Kubernetes cluster

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

@ruanbekker
ruanbekker / cheatsheet-elasticsearch.md
Last active September 17, 2025 09:41
Elasticsearch Cheatsheet : Example API usage of using Elasticsearch with curl

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.


Effective Engineer - Notes

What's an Effective Engineer?

@ericelliott
ericelliott / essential-javascript-links.md
Last active December 10, 2025 04:01
Essential JavaScript Links
@gbuesing
gbuesing / ml-ruby.md
Last active December 10, 2025 03:21
Resources for Machine Learning in Ruby

UPDATE a fork of this gist has been used as a starting point for a community-maintained "awesome" list: machine-learning-with-ruby Please look here for the most up-to-date info!

Resources for Machine Learning in Ruby

Gems

@danackerson
danackerson / 100_base.conf
Last active September 19, 2024 15:42
using nginx + lua + redis for redirects and rewrites
# using such a setup requires `apt-get install lua-nginx-redis` under Ubuntu Trusty
# more info @ http://wiki.nginx.org/HttpLuaModule#access_by_lua
http {
lua_package_path "/etc/nginx/include.d/?.lua;;";
lua_socket_pool_size 100;
lua_socket_connect_timeout 10ms;
lua_socket_read_timeout 10ms;
server {
@petehunt
petehunt / React sortable
Created December 9, 2013 22:30
Here's an example of React + jQuery UI sortable. The key thing to note is that we have the render() method do absolutely nothing and use componentDidUpdate() + React.renderComponent() to proxy updates through to the children. This lets us manage the DOM manually but still be able to use all the React goodies you know and love.
<html>
<head>
<title>Test</title>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://fb.me/react-0.5.1.js"></script>
<script src="http://fb.me/JSXTransformer-0.5.1.js"></script>
</head>