Jeff Schroeder SEJeff

The mustache gotcha

When using “bound” objects in an .aurora file it is an absolute that you do not have spaces in the “mustaches”.

Examples:

Bad: {{ profile.my_var }}
Good: {{profile.my_var}}

Docker Container Snafus

When running a docker container, you must ensure that all of the dependent library for the thermos_executor.pex are present in the docker container itself. The thermos_executor runs in the container not the mesos slaves environment.

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

	#!/usr/bin/env bash

	XDG_RUNTIME_DIR="/run/user/$(id -u solana)"

	set -o errexit
	set -o nounset
	set -o pipefail

	PID=$(pidof solana-validator)

	#!/bin/bash

	PUBLIC_INTERFACE=eth0

	# This assumes symmetric connection - for asymmetric connections need some more params
	TOTAL_BANDWIDTH=1000mbit

	# The following params would guarantee staked validaotrs 300 mbps undisturbed and
	# limit other traffic to 500 mbps.

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

	ActivityTweet
	generic_activity_highlights
	generic_activity_momentsbreaking
	RankedOrganicTweet
	suggest_activity
	suggest_activity_feed
	suggest_activity_highlights
	suggest_activity_tweet

	import com.sun.net.httpserver.Filter;
	import com.sun.net.httpserver.HttpExchange;
	import com.sun.net.httpserver.HttpHandler;
	import com.sun.net.httpserver.HttpServer;

	import java.io.IOException;
	import java.net.HttpURLConnection;
	import java.net.InetSocketAddress;
	import java.util.Arrays;
	import java.util.List;

	#!/bin/bash

	# Cronic v2 - cron job report wrapper
	# Copyright 2007 Chuck Houpt. No rights reserved, whatsoever.
	# Public Domain CC0: http://creativecommons.org/publicdomain/zero/1.0/

	set -eu

	OUT=/tmp/cronic.out.$$
	ERR=/tmp/cronic.err.$$

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048