taminhtien / db.rake

Created June 12, 2017 17:04 — forked from hopsoft/db.rake

Rails rake tasks for dump & restore of PostgreSQL databases

	# lib/tasks/db.rake
	namespace :db do

	desc "Dumps the database to db/APP_NAME.dump"
	task :dump => :environment do
	cmd = nil
	with_config do \|app, host, db, user\|
	cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
	end
	puts cmd

taminhtien / gist:dcf73197f23581b3f7ad133220e87ddd

Last active July 5, 2017 07:42

Set up SSL/cert-bot/Let's encrypt in EC2 instance Amazon

	```sudo -H pip install zope.interface -U```
	```sudo -H pip install certbot -U```
	```wget https://dl.eff.org/certbot-auto```
	```chmod a+x certbot-auto```
	```sudo ./certbot-auto certonly --standalone -d agilelab.sg www.agilelab.sg --debug```

	Set up Nginx to serve SSL

	```
	upstream futureworkz {

taminhtien / gist:32e6bb76b64483bda5628cbacbee1c12

Created June 2, 2017 03:19

Set up SSL/cert-bot/Let's encrypt in EC2 instance Amazon

	```sudo -H pip install zope.interface -U```
	```sudo -H pip install certbot -U```
	```certbot-auto certonly --standalone -d agilelab.sg www.agilelab.sg --debug```

	Set up Nginx to serve SSL

	```
	upstream futureworkz {
	server unix:///home/futureworkz/production/shared/tmp/futureworkz.sock;
	}

taminhtien / rendering-json

Created April 25, 2017 04:52

Rendering JSON

	Rendering JSON: Active Model Serializer Vs JBuilder
	- AMS: seperate its own serialization concerns into seperate folders, files, OOP
	- JBuilder: view extension, use along with html version (eg: show.html.slim and show.jbuilder)

	So, if full api, use AMS, if have api and views, use jbuilder natively or ASM

	ASM is OOP approach -> choose this 1 as personal

taminhtien / rails-api-routes

Created April 25, 2017 04:37

Rails api routes

	User `constraints` to specify the subdomain name for api portion and can introduce load balancing or increase number of api server needed based on its usage.

	```ruby
	Rails.application.routes.draw do
	namespace :api, path: '/', constraints: { subdomain: 'api' } do
	resources :users
	end
	end
	```

taminhtien / json-tricks

Created April 25, 2017 04:23

Playing with JSON

	require 'net/http'
	require 'json'

	url = 'http://jsonplaceholder.typicode.com/posts/1'
	uri = URI(url)
	response = Net::HTTP.get(uri)
	standard = JSON.parse(response) # keys are string
	symbol = JSON.parse(response, symbolize_names: true) # keys are symbols
	struct = JSON.parse(response, object_class: OpenStruct) # make resonse become an object, can use struct.id

taminhtien / install-redis.sh

Created April 17, 2017 01:57 — forked from FUT/install-redis.sh

Install Redis on EC2

	1. Install Linux updates, set time zones, followed by GCC and Make

	sudo yum -y update
	sudo ln -sf /usr/share/zoneinfo/America/Indianapolis \
	/etc/localtime
	sudo yum -y install gcc make


	2. Download, Untar and Make Redis 2.8 (check here http://redis.io/download)

taminhtien / tmux_cheatsheet.markdown

Created December 27, 2016 04:27 — forked from henrik/tmux_cheatsheet.markdown

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

taminhtien / install newrelic agent across multiple Amazon AMI based EC2 servers

Created November 3, 2016 02:54 — forked from kirangollu/install newrelic agent across multiple Amazon AMI based EC2 servers

for host in `aws ec2 describe-instances --region us-east-1 |  grep PublicIpAddress | cut -d "\"" -f4` ; do ssh -i ~/.ssh/keypairs/dev-gamma-keypair.pem ec2-user@$host -t -o StrictHostKeyChecking=no 'sudo rpm -Uvh https://yum.newrelic.com/pub/newrelic/el5/x86_64/newrelic-repo-5-3.noarch.rpm ; sudo yum -y install newrelic-sysmond ; sudo nrsysmond-config --set license_key=dfc748af2b5d0a493659d3a443a7bc2fdbe06fa1 ; sudo /etc/init.d/newrelic-sysmond start' ; done

taminhtien / Postgres command lines

Last active March 28, 2016 16:53

	1. Create db

	```shell
	createuser --createdb --login -P <database_name>

	--createdb tells Postgres that our user should be able to create databases
	--login switch will allow our user to log in to the database
	-P means we want to set our new user’s password right now
	```

Tạ Minh Tiên taminhtien

tmux cheatsheet