Clay Smith smithclay

Run commands on remote Docker host

This is how to connect to another host with your docker client, without modifying your local Docker installation or when you don't have a local Docker installation.

Enable Docker Remote API

First be sure to enable the Docker Remote API on the remote host.

This can easily be done with a container.
For HTTP connection use jarkt/docker-remote-api.

Following the tradition from last year, here's my complete list of all interesting features and updates I could find in Apple's OSes, SDKs and developer tools that were announced at this year's WWDC. This is based on the keynotes, the "What's New In ..." presentations and some others, Apple's release notes, and blog posts and tweets that I came across in the last few weeks.

If for some reason you haven't watched the talks yet, I really recommend watching at least the "State of the Union" and the "What's New In" intros for the platforms you're interested in. The unofficial WWDC Mac app is great way to download the videos and keep track of what you've already watched.

If you're interested, here are my WWDC 2015 notes (might be useful if you're planning to drop support for iOS 8 now and start using some iOS 9 APIs).

OSX → macOS 10.12 Sierra

Native app performance metrics

This is a draft list of what we're thinking about measuring in Etsy's native apps.

Currently we're looking at how to measure these things with Espresso and Kif (or if each metric is even possible to measure in an automated way). We'd like to build internal dashboards and alerts around regressions in these metrics using automated tests. In the future, we'll want to measure most of these things with RUM too.

Overall app metrics

App launch time - how long does it take between tapping the icon and being able to interact with the app?
Time to complete critical flows - using automated testing, how long does it take a user to finish the checkout flow, etc.?
Battery usage, including radio usage and GPS usage
Peak memory allocation

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

	# Project Policy

	This policy provides a single, authoritative, and machine-readable source of truth for AI coding agents and humans, ensuring that all work is governed by clear, unambiguous rules and workflows. It aims to eliminate ambiguity, reduce supervision needs, and facilitate automation while maintaining accountability and compliance with best practices.

	# 1. Introduction

	> Rationale: Sets the context, actors, and compliance requirements for the policy, ensuring all participants understand their roles and responsibilities.

	## 1.1 Actors

	# This is a "Managed Script" in Jenkins
	COMMIT=`aws lambda get-alias --region $AWS_REGION --function-name $FUNCTION_NAME --name $PUBLISH_FROM_ALIAS \| grep "Description" \| cut -d'"' -f4`
	VERSION=`aws lambda publish-version --region $AWS_REGION --function-name $FUNCTION_NAME --description $COMMIT \| grep "Version" \| cut -d'"' -f4`
	aws lambda update-alias --region $AWS_REGION --function-name $FUNCTION_NAME --function-version $VERSION --name $PUBLISH_TO_ALIAS --description $COMMIT

	#!/bin/sh

	set -ex

	PATH=/bin:/sbin:/usr/bin:/usr/sbin
	KEYMAP="us us"
	HOST=alpine
	USER=anon
	ROOT_FS=ext4
	BOOT_FS=ext4

	#include <errno.h>
	#include <stdio.h>
	#include <unistd.h>
	#include <netinet/tcp.h>
	#include <netinet/in.h>
	#include <arpa/inet.h>
	#include <sys/socket.h>

	int main(int argc, char **argv) {
	int s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

	var http = require('http');

	exports.handler = function(event, context) {
	http.get('http://httpbin.org/get', function(res) {
	var body = '';
	res.on('data', function(chunk) {
	body += chunk;
	});

	res.on('end', function() {