ethomson

#!/bin/sh

set -eufo pipefail

if [ "$#" -ne 2 ]; then
    echo "usage: $0 source_repo_url target_repo_url" >&2
    exit 1
fi

SOURCE_URL="$1"

bendog

AWS Lambda JWT authenticaiton

AWS API Gateway has the ability to pre-authenticate connections prior to launching the endpoint, by passing the authorizationToken to a Lambda function. There are clear benefits for simplifying end point security and also a reduction in duplicated code by utilising this feature. However I found the AWS examples were excessively complicated for what should be a very simple task.
So here's my example.

The main concern is that AWS Lambda authentication expects a very specific response and if that response is not given it will throw a 500 error with x-amzn-ErrorType: AuthorizerConfigurationException in the response header if the response object is not exactly as expected.

Usage

I personally use to handle the publishing part of my Lambdas, but I'll include an image of the API Gateway config.

pydevops

• 0.1. References
• 0.2. Other cheatsheets
• 0.3. Manage multiple gcloud config configurations
  • 0.3.1. Switch gcloud context with gcloud config
• 0.4. Credentials
• 0.5. info
• 0.6. projects
• 0.7. zones & regions
• 0.8. Organization
• 0.9. billing

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

vitali2y

$ sudo apt-get install asciidoc xsltproc
$ git clone https://github.com/bitcoinbook/bitcoinbook.git
$ cd bitcoinbook
$ wget -O ./images/warning.png http://www.iconsdb.com/icons/download/black/warning-5-64.ico
$ wget -O ./images/note.png http://www.iconsdb.com/icons/download/black/note-2-64.ico
$ wget -O ./images/tip.png http://www.iconsdb.com/icons/download/black/seo-tips-2-64.ico
$ a2x -f epub book.asciidoc --icons-dir=./images --resource=./theme/epub -d book -L
$ ls -la book.epub

alejandrobabio

Business Logic / Domain Model structures for Ruby, Rails

• adomokos/light-service
  • Series of Actions with an emphasis on simplicity.
• collectiveidea/interactor
  • Interactor provides a common interface for performing complex interactions in a single request. (Alert: this project seems to be inactive).
• cypriss/mutations
  • Compose your business logic into commands that sanitize and validate input.
• orgsync/active_interaction
• Manage application specific business logic.

rondy

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

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

jgornick

#!/bin/bash

docker rm $(docker ps -q -f status=exited)
docker rmi $(docker images -q -f dangling=true)

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Gazler

sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
ulimit -n 4000000
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
sysctl -w net.ipv4.tcp_rmem='1024 4096 16384'
sysctl -w net.ipv4.tcp_wmem='1024 4096 16384'
sysctl -w net.core.rmem_max=16384
sysctl -w net.core.wmem_max=16384
wget http://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb
sudo dpkg -i erlang-solutions_1.0_all.deb