kekru

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.

mackuba

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

patrickbrandt

# 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

thde

#!/bin/sh

set -ex

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

daurnimator

#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);

kixorz

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() {

larahogan

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

acolyer

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?

bnoordhuis

user mode linux: build and run

Generate default .config.

$ make defconfig ARCH=um SUBARCH=x86_64

Build the linux ELF binary.

$ make -j8 linux ARCH=um SUBARCH=x86_64

anandsunderraman

//import the selenium web driver
var webdriver = require('selenium-webdriver');

var chromeCapabilities = webdriver.Capabilities.chrome();
//setting chrome options to start the browser fully maximized
var chromeOptions = {
    'args': ['--test-type', '--start-maximized']
};
chromeCapabilities.set('chromeOptions', chromeOptions);
var driver = new webdriver.Builder().withCapabilities(chromeCapabilities).build();