WSL2 Backup to OneDrive Cloud

Posted on Wed 31 January 2024 in windows • Tagged with linux, vm, development

WSL2 provides great disk performance, but it requires storing the files separately in a virtual disk that is not accessible by OneDrive. WSL2 can be backed up with wsl --export Debian to a VHD or TGZ, but that is a complete disk backup of 20gb or more -- not scalable for hourly backups.

With this approach, we use Windows Task Scheduler to trigger robocopy to incrementally sync directories from WSL2 to Onedrive's native FS, so incremental copies are fast ( 1 s per 10k files), and OneDrive sync time remains negligible.

It's also useful for snapshotting subdirectories to TGZ for offline or …

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IPV6 Migration Guide for Developers using AWS EC2 -- A Primer

Posted on Sun 19 November 2023 in aws • Tagged with devops, development

With the news that AWS will be now charging about $4 / instance-month for public IPv4 addresses, many developers who procrastinated ipv6 migration are finally updating both ends of their development setup.

It's a great time to migrate, as all the intermediate infrastructure now supports IPV6 readily. Moreover, you'll benefit from permanent , global addresses for your development instances.


  • A single, global, stable address for EC2 instances that never changes. No need for dynamic DNS and other hacks
  • No need to pay for Elastic IP addresses on dev instances
  • Global addressing for mutual duplex services (no more NAT needed)
  • Better flexibility …
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BeeLink SER6 MAX Out-of-Box Bloatware / Spyware / Malware Review

Posted on Tue 10 October 2023 in windows • Tagged with windows pc hardware

I recently set up a new SER6 and reviewed bloatware / spyware / malware prior to connecting to the internet. There were quite a few posts asking about spyware, and given it's competitive price point, I was also a bit suspicious. I usually do a malware review before connecting any new device to the internet.

What I reviewed

  • running processes and their signatures
  • startup apps (Task Manager formerly msconfig)
  • Installed Services
  • Windows Features Enabled
  • Partition Table Review (for malware)
  • Local user accounts
  • Confirm installed hardware components and brands met specifications.
  • BIOS & Windows 11 Secure Boot, TPM & Enhanced Hardware Security settings (see Questionable …
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Improve WSL Security with Read-Only Filesystem

Posted on Wed 04 October 2023 in linux • Tagged with wsl windows linux

By default, all Windows drives are mounted with read & write access (rw) within WSL . Though this is convenient for beginners, it opens up VM shell attacks on your Windows host files.

Instead, we can disable the auto mount feature using wsl.conf and selectively add read-only drives inside the WSL VM using /etc/fstab


  1. Deactivate "auto mount" in /etc/wsl.conf
  2. Enable fstab using MOUNTfStAB = true in wsl.conf
  3. test config files and mounting work well
  4. reboot the wsl VM to complete the setup

Example WSL Config wsl.conf

Place this inside the /etc/ directory on the WSL VM …

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Smokeping On Raspberry Pi Zero

Posted on Wed 18 January 2023 in raspberrypi • Tagged with linux, cli, networking

Smokeping is a self-contained network monitoring app , capable of monitoring using ICMP/Ping, HTTP, DNS -- as well as other signals generated from CLI monitoring tools (e.g. curl, dig, mtr etc). It provides a web-based monitoring UI to chart the probe measurements so no further monitoring apps (like Prometheus) are needed.

Running smokeping on a $5 Raspberry Pi Zero is a fun experiment in lightweight computing . Using Apache Mod FastCGI makes the app usable on the meager hardware.

By the end of the exercise you'll have the smokeping probes running to test network performance and the UX available on your …

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Testing Without Excuses

Posted on Sun 29 August 2021 in testing • Tagged with linux, cli

Every app has that last inch (or mile) of code that's not covered by tests. Usually it's an interactive cycle of compile-run-inspect on the command line like

You Test

 curl -X POST

👀 You Expect:


Despite having 3-4 testing frameworks for unit tests, e2e, regression etc-- there's always a gap where you find yourself re-playing commands in the terminal to test.

A common case is 🔥firefighting where ad-hoc tests are needed to validate an emergency config change or deployment.

Not only is this a waste of time, it's error prone and reduces the …

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Three Pillars

Posted on Wed 14 July 2021 in leadership • Tagged with management, information

Recently an old friend, with great experience as an IC, PM and EM, called me to ask for some advice. He had been running his business for a while and took up a new role as an engineering manager after some time. "What areas do you focus on as an EM?, particularly when joining a new team".

I divided the conversation into three pillars: strategy & inventory, technical (aka going deep) and career / personal

Any given day, week or month will include some of these. Some periods will emphasize one or the other more heavily.


Strategy is about helping the …

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Signal Vs Noise

Posted on Sat 14 November 2020 in productivity • Tagged with management, information

Signal Vs Noise

One responsibility of engineers & especially leads is managing many channels of signals : emails, blog posts (internal and external), tags , push notifications, group chats, alerts from dashboards and more.

These signals tend to scale exponentially to the number of projects & people that you are responsible for.

Quickly you'll need to set up a system to make sure that you are receiving high-signal information and filtering out low-signal noise. How do you do that?

For each channel, it's important to set up and continuously refine filters that matter to you.

Each system typically has filtering that can be configured …

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A Timeless Directory Layout for All of your Projects

Posted on Sun 31 May 2020 in linux • Tagged with business

Directory layouts are like log cabins that start from a basic shed, gradually adding a room at a time. When you start out on UNIX, everything gets thrown in your home directory. Over time you start to develop a structure for your sources, binaries, projects, data files (like CSV, images, tar files), config, etc

My layout is called TDL -- because it allows me to juggle open source projects, partnerships and jobs in a consistent structure across machines and time.

│── .cfg          # bare git repo with my dotfiles
│── local         # e.g. make install --prefix=~/local     - lib, bin, man  
│── .trash        # files to …
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Snooze to Save Money

Posted on Mon 18 May 2020 in bash • Tagged with aws, bash, beginners

Cloud instances bill by the hour (or the minute) – and right now you're burning money. Use snooze to auto-shutdown your instances in 45 minutes.

Add snooze to your ~/.bashrc

alias snooze='sudo shutdown -c ;  sudo shutdown -h +45 &'

When you want to extend your session, run snooze

Broadcast message from ec2-user@ip-172-31-43-250
    (/dev/pts/1) at 2:50 ...

The system is going down for halt in 45 minutes!

How does this work?

shutdown -c cancels the shutdown, and shutdown -h +45 schedules a shutdown in 45min.

How can we automate this?

Stay tuned !

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Fully Remote Development with VS Code & Cloud9

Posted on Sat 04 January 2020 in development • Tagged with gcp, authorization, iam

I work from about 7 different machines, including 3 laptops, ipad, chromebook and a PC desktop. Usually this means keeping credentials, config, build dependencies and IDEs in sync across all 3--and the iPad & Chromebook just can't run my dev environment

I considered a few options to enable seamless work across devices

option pros cons
Keep a "dev" docker image that contains everything. fully-local dev only works on Desktop OSs. Inconsistency if you forget to push the image
Sync script fully-local dev Inconsistency across devices. Script mayhem
Code remotely via a VM Secure, consistent Traditionally, text-only


  1. Launch Cloud9 Environment on …
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Build 100kB Docker Images from Scratch

Posted on Mon 06 May 2019 in docker • Tagged with docker, c, scratch

📓 The Gist

You may think your 100mB Alpine images are small--but how about 100kB? Smaller images ship more quickly, and contain fewer attack vectors. Moreover, by optimizing images, you discover and isolate exactly what is needed for your app to run.

Let's Optimize.

There are two key characteristics of scratch-based docker images: 1. The Dockerfile has two build stages: * a builder--which contains all of the build dependencies including source, libraries and tools and.. * a final image, containing the binary and any run-time dependencies (config files, certificates and dynamically linked libraries) 2. The final image is FROM scratch -- the empty docker …

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Publish Free Static Websites With Firebase, Hugo and Google Cloud Builder -- Part 2

Posted on Tue 30 April 2019 in hosting • Tagged with gcp, firebase, hugo, google-cloud-builder, tutorial

In Part 1, we completed our development environment, including setting up Hugo and our repo.

Here we'll publish our site to Firebase Hosting, and create the CI tools on Google Cloud Build to build and publish upon push.

Open Your Cloud Shell

In Part 1, we enhanced our cloud shell with hugo and set up our repo. In Part two, we'll use it to create the builder and configure hosting.

See the Quickstart for complete instructions

Create a Firebase Site & Configure Your Project

First, authenticate your cli

# --no-localhost let's us authenticate our cloud shell by code
$ firebase login …
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Benchmarking Pihole : Pi Zero vs Pi 3b+

Posted on Tue 23 April 2019 in iot • Tagged with raspberrypi, go

Here's a benchmark comparing pi-hole running on a Pi Zero (with USB ethernet) vs a Pi 3b+.

tl;dr There was negligible performance difference for blocked domains, but a measurable difference in mean for forwarded + cacheable domains. Although the Pi 3b+ has a 11ms better mean response time for forwarded queries, the P95 for pi zero is better in both blocked and forwarded queries.

I would recommend using the Pi Zero.


Prior to the experiment, I assumed that the pi zero would be 30-50% slower in all cases, and that stddev would be larger (worse & more erratic latencies).

Hardware …

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PHP Dev Environment One-Liner

Posted on Wed 17 April 2019 in php • Tagged with docker

Here's the fastest way to get your PHP app running. No MAMP, WAMP, apache or any of that nonsense.

Moreover, it allows you to run multiple projects independently.

I'm assuming you have docker.


This runs the php docker image, mounts the current directory, and spins up a server on port 8086

$ docker run -v $(pwd):/www -it -p8086:8086  php:5.6-alpine sh -c "cd www; php -S"

The Full Version

Create your index.php

$ cat > index.php
<html><body><h1><?php print("Hello World!") ?> </h1></body></html>

Run the Server

$ docker …
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Being Scientific with Gists : The Sharable Laboratory

Posted on Tue 09 April 2019 in productivity

Next time you create a post with code snippets--like here on or stackoverflow--consider sharing a working and buildable gist along with it. By doing so, others can clone, reproduce your results, and commit new variants much more easily.

With the process below, your gist becomes a sharable laboratory. Since the gist contains all of the code variants and test cases, any team member can create a variant and run the tests against all existing variants.

In the examples below, we were discussing performance differences between short Perl & Golang snippets, presumably doing the same thing. The original variant had …

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Getting to Yes -- As Quickly as Possible

Posted on Fri 29 March 2019 in go • Tagged with devops, performance

There was a great discussion a year ago about how fast gnu's version of "yes" is. If you're unfamiliar, yes outputs y indefinitely.

yes |head -5

The key takeaway was that write is expensive and writing page-aligned buffers is much faster. The is true across languages, so let's see how to do it properly in go.

If you're shocked or impressed by the results, let's see you do it in your language -- post your results in the comments.

First, our benchmark C code from last-year's post.

/* yes.c - iteration 4 */
#define LEN 2
#define TOTAL …
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GCP: Managing IAM Access Control Across Projects -- The Simpler Version

Posted on Mon 25 February 2019 in gcp • Tagged with gcp, authorization, iam

GCP resources are organized into projects -- all resource IDs and IAM principles are grouped under a project ID. This means that by default roles assigned to a principle (e.g. a user or service account) are scoped only to project resources. This can be tricky if say your images are in one project's storage bucket and your app is running in another

If you want to provide a service principle in one project access to resources in another , the approach is not obvious, nor is it well documented.

Below we'll talk about the most direct way, which works for projects …

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Publish Free Static Websites With Firebase, Hugo and Google Cloud Builder -- Part 1

Posted on Fri 15 February 2019 in hosting • Tagged with gcp, firebase, hugo, google-cloud-builder, tutorial

Static site frameworks like Hugo allow you to manage content with Markdown and publish content via scalable hosting platforms like Firebase hosting. Uptime, performance and operations cost per user can't be beat -- you can easily hit millions of pageviews for less than $10/ month

In this tutorial we'll make a production-ready personal website site, that supports multiple collaborators, built using Hugo. Moreover, we'll publish with the free-to-start Firebase Hosting CDN, and build automatically using Google Cloud Builder.


  1. A Google Cloud Platform Account & Project -- You can use the free tier
  2. A Firebase project -- also free
  3. Access to the Google Cloud …
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Writing Custom Metrics to Stackdriver in Golang

Posted on Wed 13 February 2019 in golang • Tagged with gcp, stackdriver, monitoring, tutorial

Instrumentation is a critical part of any application. Along with system counters like cpu, heap, free disk, etc-- it's important to create application-level metrics to make sure health is measured closer to your customer's experience.

Example metrics could be user-registration, password-change, profile-change, etc. If you see a major spike or dip in these metrics, a wider problem could be indicated.

For this example a custom metric was needed, and no infrastructure was in place for harvesting it (e.g. collectd). Golang is handy for creating an easy-to-install daemon which performs the measurement and periodically harvests the data into stackdriver.

The …

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Using AWS IOT To Arm Blink Cameras

Posted on Sat 16 December 2017 in iot • Tagged with iot, lambda, security, tutorial, aws

Blink security cameras are an affordable home security camera system. Although they lack a formal public API, inventive devs have reverse-engineered their private API to allow for better integration.

Here we'll use AWS IOT Core, Lambda and node-blink-security to arm and disarm Blink security cameras using an AWS IOT Button.

Activating Your IOT Button

The IOT Button must be configured to your account, which includes joining it to your wifi access point, and installing the client certificates.

The easiest way to perform activation is by using the AWS IOT Button App for Android or IOS. Complete instructions are found on …

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Get Started with Bitcoin Using Docker

Posted on Thu 30 November 2017 in bitcoin • Tagged with docker, bitcoin, secuity, tutorial

Like me, you're probably more comfortable on a CLI. Here's a quick way to use docker to set up a Bitcoin Wallet and trade Bitcoin for free on Testnet with Electrum. You can use the same tools to manage your real Bitcoin wallet too.


Make sure you have Docker for your OS ( Mac, Windows, Linux)

Run the electrum-cli docker image

Electrum is a python-based Docker wallet with a both a gui and good cli. I've put together electrum-cli, a lightweight Alpine-linux Docker image with Electrum signed and installed with jq.

docker run -it tonymet/electrum-cli

Create a wallet

First …

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Using Custom Docker Images on Bitbucket Build Pipeline

Posted on Tue 28 November 2017 in docker • Tagged with docker, ci

Usually setting up the build dependencies is a major part of each build job. Thankfully, Atlassian's Bitbucket Pipelines, the new CI platform that integrates into Bitbucket, supports custom docker images.

To configure the build pipeline, you create bitbucket-pipeline.yml . This one uses our custom image (built below) and triggers builds whenever a releases-* tag is pushed.

image: tonymet/
      - step:
            - make sync_down_images
            - make s3_upload

That first line is the magic part -- you can run ANY public docker image from dockerhub (and private ones as well with further setup).

Building a Static Blog Using Build …

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Creating TGZ artifacts from Docker Images to Enable Service Migrations

Posted on Tue 14 March 2017 in docker • Tagged with travis, ci, docker

A common migration pattern when moving to docker includes running some systems (e.g. dev, staging or a prod canary) on your docker image while the production app is still running your traditional tgz artifacts (e.g. your node app with node_modules)

Let's create a travis build that creates two artifacts: (1) your docker image and (2) a tgz from the docker container.

Let's assume you have a basic dockerfile with your app.js and a package.json. The key is that the app is built into /usr/src/app

FROM node:4

RUN mkdir -p /usr/src/app
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App Script for Modifying Google Groups

Posted on Tue 23 February 2016 in google-apps • Tagged with javascript, groups, developers, API, sdk

Google App Script is a little-known, yet powerful development platform for enhancing and automating google services. I use it for administration and building custom tools. Here are some things I've used it for

  • a web app that scans emails for certain patterns and puts the results in email
  • index email into a sql db to build charts & reports (e.g. 7d volume, top senders)
  • automate account settings changes & cleanup
  • bulk migration of email between accounts or from shared accounts to groups
  • various google spreadsheet formulas
  • various google docs macros like timestamps

Sadly, the platform is a bit tricky to set …

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Free SSL Certificates using ACM (AWS Certificate Manager)

Posted on Tue 16 February 2016 in aws • Tagged with aws, ssl, security

2016 may be the year of free SSL, and AWS ACM (AWS Certificate Manager) is a great offering for Cloudfront & ELB users (most web apps).

Not only is it free, but it's also the simplest certificate management platform

  • request a new certificate in minutes
  • no server config needed
  • no certificate , chain or private key management
  • automatic certificate rotation

Here's how to create a certificate and then install it onto your cloudfront distribution.

Requesting a New Certificate

aws acm request-certificate --domain-name \* --subject-alternative-names
    "CertificateArn": "arn:aws:acm:us-east-1:OOOOOOOOOOOO:certificate/c3d15000-230c-4000-8000-a600000"

Activating the Certificate on Cloudfront

This part …

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Creating a Varnish Load Balancer for Opsworks

Posted on Fri 15 January 2016 in aws • Tagged with scaling, infrastructure, opsworks, varnish, chef

Varnish is an amazing platform -- it can easily help you handle 100x traffic and is easy to add to your existing frontend or API layer with little to no change to your app.

Here we'll go over some neat tricks leveraging chef, the AWS Opsworks API and the opsworks configure lifecycle event to create a lighting fast load balancer & reverse proxy that automatically updates itself.


  1. Create a new varnish layer that installs the varnish and jq packages

  2. Activate custom cookbooks. It's easiest to just use s3 deployments so you don't need a separate git repo.

The varnish::backends recipe …

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Using the AWS EC2 Container Registry with EC2 Container Service

Posted on Wed 06 January 2016 in aws • Tagged with aws, docker, ecr, ecs

AWS announced recently that it's EC2 Container Registry (ECR) is now available. ECR simplifies hosting private images. Previously, you had to manually push your credentials to each EC2 instance -- likely a deliberate pain-point encouraging you to use ECR. With ECR, EC2 container hosts can easily fetch private images using IAM authentication.

Here are some of the gotchyas and stumbling blocks to help you get your repository up quickly and painlessly.


1. aws-cli should be 1.9.15 or greater.

# check Version
$ aws --version
# update via homebrew (osx) if needed
$ brew update
$ brew …
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Securing Your Network Using Auto-Updating Security Groups

Posted on Thu 17 December 2015 in aws • Tagged with aws, security, security-groups

We all know that no ports should be open to the internet for development purposes, but for convenience it's common to find a security group with port 22 (SSH) open to . Even narrower ingress rules can create backdoors.

Here we'll show you how to create an auto-updating security group that adds your active WAN IP address when you connect. This way, only your active IP is authorized.

Create the "development" security group with no ingress

aws ec2 create-security-group --group-name=development --group-description="ssh access for my dev machine"

Create a limited role …

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Delegating Admin Credentials using IAM Roles and Cloudwatch Alerts

Posted on Sat 12 December 2015 in aws • Tagged with aws, cloudwatch, alerts, monitoring

It's hard to strike the right balance with admin rights--either the rights are too strict and people can't get work done or they're too lenient and you have security issues.

As a compromise, AWS provides the AssumeRole feature which lets admins temporarily escalate their role to perform a task.

It's important when setting this up that you alert the team when it's used. Here we'll talk about how to set up the roles, give teams access to the roles and create an alert system when the roles are assumed.

Create The Temporary Admin Role

Use the IAM console to create …

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Using AWS Lambda for Web Video Transcoding

Posted on Thu 03 September 2015 in aws • Tagged with lambda, elastic-transcoder, video

Often your creative team will produce master videos in 4k or 1080p, but you need to downcode these videos into 720p/1080p for web broadcasting. Here we automate transcoding of masters into web-friendly formats like 720p h264 mp4 & webm.

AWS Elastic Transcoder is a cloud video transcoding service. At it's simplest it transcodes video files from one bitrate, framerate, codec, container, etc--into another. By default you trigger new jobs either manually in the aws console or via the rest API. And naturally all inputs & outputs are saved in S3.

Transcoder setup includes creating a pipeline and presets. Then for each …

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Wordpress Cron on Opsworks

Posted on Thu 27 August 2015 in aws • Tagged with opsworks, chef

By default Wordpress uses it's own pseudo-cron which triggers with every request. Obviously this is wasteful since (a) the queue needs to be inspected with every GET and (b) jobs like publishing articles will interfere with serving content.

Some suggest calling the wp-cron.php GET request with curl in a cron like this

* * * * * curl

but that's sub-optimal since it needlessly ties up a worker during the cron execution.

If you're using chef or Opsworks, here's a tidy way to install the system cron to execute without interfering with your webserver.

First, disable the Wordpress …

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HTTP Redirects with Cloudfront & S3

Posted on Tue 18 August 2015 in aws • Tagged with aws, cloudfront, s3, http

Redirects can account for a significant share of direct traffic so taking a few minutes to optimize them is worthwhile.

Using Cloudfront & S3 for redirects will improve responsiveness, reduce server load and improve management (since they are managed via aws-cli or the console).

Let's say you have a typical .htaccess redirect like this.

RewriteEngine On
### re-direct to www
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

Or worse, it could look like this in your index.php

$protocol = (@$_SERVER["HTTPS"] == "on") ? "https://" : "http://";

if (substr($_SERVER['HTTP_HOST'], 0, 4) !== 'www.') {
    header('Location: '.$protocol.'www.'.$_SERVER …
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Better Battery Statistics with Battery Historian

Posted on Mon 17 August 2015 in android • Tagged with android, battery, debug

Continuing the relentless quest to keep my phone speedy, I stumbled upon a developer tool that is useful to anyone needing to troubleshoot a slow, short-living or overheating phone -- Battery Historian

battery historian

Battery Historian shows you a much more detailed and informative battery stats chart, highlighting the individual apps and sync services which are keeping your phone awake/busy in the background. It also shows network, wifi status, gps and more.

Using this tool I identified that the Facebook Messenger app was waking up to send stats. Also, Google+ was syncing for ~40s in the bakground at times.


$ git …
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Debugging Android Performance & Battery Issues--Like a Developer

Posted on Sat 15 August 2015 in android • Tagged with android, battery, debug

I have a frustrating relationship with my phone's performance. I can cleanup my phone for a few days, but it tends to revert to being sluggish within no time. I've had dozens of devices and they all suffer from this.

There's a lot of voodoo about Android Performance and Battery life--task managers, factory resets, etc.

Here's a more developer-oriented process using adb .

Using ADB to identify process hogs

By connecting your device to the Android SDK, you can use ADB to identify process hogs. If you can, just remove the app. Otherwise, delete it's data (see pm clear below)

$ adb …
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Validating side-loaded APKs

Posted on Thu 13 August 2015 in android • Tagged with android, apk, debug

I was desperate to try Hangouts 4.0 for Android, but suspicious of side-loading. I wanted to verify the APK signature cert had Google's fingerprint of


Here's how to check the signatures on an APK, as usual, in shell functions (JDK needed)

apk-check () {
    jarsigner -verify -verbose -certs $1

apk-print-cert () {
    keytool -list -printcert -jarfile $1

# usage
# make sure it's verified
$ apk-check *apk|grep verified
  s = signature was verified
jar verified.
# show …
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Opsworks -- Quickly Listing Hosts on the Command Line

Posted on Tue 11 August 2015 in aws • Tagged with aws, opsworks, cli

Here's a great example of using the aws-cli to speed up your life. Uses jq and aws-cli

  # bash / zsh function
  function opsworks-hosts-prod () {
    aws opsworks describe-instances --stack-id=fffff-fffff-ffff-fff-fffffff | jq '.Instances[].PublicDns' | grep -v null | sed s/\"//g
  # usage
  $ opsworks-hosts-prod
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First Things First, on AWS

Posted on Fri 07 August 2015 in android • Tagged with aws, secuity, tutorial

I was chatting with a buddy who was moving his web sites from dedicated hosting to AWS. Let's just say the FTUE isn't great. That triggered a quick brain-dump of what you should do when you first get started with AWS.

  • understand pets v cattle. In aws all resources should be "cattle", not pets. Periodically terminate instances to test this.
  • activate cloudtrail (in all regions). Use Loggly to index cloudtrail (free or ~$20/mo)
  • create restricted IAM users. Never use your root acct. Activate MFA.
  • Use IAM ec2-instance roles instead of stored credentials whenever possible.
  • Get familiar with IAM management …
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On Software Scaffolding

Posted on Thu 09 July 2015 in aws • Tagged with monitoring, software

waterloo_bridge_1815 A new lightrail line is being built in my city with bridges passing over the major boulevards.  Seeing the elaborate scaffolding evoked comparisons to software engineering.  What does scaffolding look like in software? Does software need to be erected like a bridge via scaffolding?  Without a doubt: yes.

Here are some elements of software “scaffolding”:

  • Error log instrumentation with a formal error log schema (i.e. errors are uniquely identifiable in a MECE schema)
  • Operational instrumentation with reports , dashboards and alerts
  • Performance profiling on methods, database calls, rest calls, system calls and any blocking IO.
  • Client-side performance instrumentation and sampling …
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Opsworks before-migrate.rb

Posted on Tue 09 June 2015 in aws • Tagged with chef, opsworks, aws, devops

Opsworks is a convenient, powerful and free service provided by AWS to simplify the management of EC2 nodes.  The real power of the system is exposed through customizing various stages of the instance lifecycle by creating custom-tailored chef-solo recipes.

While Amazon provides a powerful deployment layer for PHP applications, it stops short once the PHP code has been checked out of git.  For Laravel or other composer apps, you’ll have to customize your deployment.  The most elegant and straightforward method is through custom deployment hooks.  Here’s how to build a before_migration.rb script to build a Laravel app …

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