gohjiaying

Useful Commands

Docker

Code	Description
docker rm $(docker ps -a -q -f status=exited)	To remove all the containers that have exited
EC2_REGION=wget -q -O - http://169.254.169.254/latest/meta-data/placement/availability-zone|sed s/.$// aws ecr get-login --region $EC2_REGION --no-include-email	To login into ECR
docker pull amazon/amazon-ecs-sample	Just a ecs sample

gohjiaying

Docker CLI Download

1. Download Docker Cloud
2. Open application and sign in
3. Go CLI docker ps

Visual Studio Code

• For AWS Client , it is region specific. If different region is required, have 2 client.
• Download AWS Toolkit

AWS CLI and login via SSO

gohjiaying

Severless, lambda, Api Gateway

When testing on api gateway received a "module initialization error" but do not know what's the error.

1. Check api-gateway error logs
2. Test that the lambda works from console (This helped me to solve my problem)

About CORS:

CORS stands for Cross-origin resource sharing. It is a set of standard HTTP headers used to restrict the access of web resources from other domains. In the web app security model, this is called same-origin policy, and it's supposed to avoid cross-site scripting (XSS) attacks. Browsers will not fetch the requested resources unless the corresponding server attaches the required HTTP headers in the OPTIONS call (or GET method).

gohjiaying

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Original Author: J. Le Coupanec
# Date: 2014/11/04