Alexander Belyaev alexbel

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

Introduction
Determine actual FastCGI response sizes
Setting the buffer size
Verifying results

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
	# We use latest stable nginx with fresh openssl, zlib and pcre dependencies.
	# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
	#
	# Deployment structure
	#
	# SERVER:
	# /etc/init.d/nginx (1. nginx)
	# /home/app/public_html/app_production/current (Capistrano directory)
	#

	curl \
	--verbose \
	--request OPTIONS \
	http://localhost:3001/api/configuration/visitor \
	--header 'Origin: http://localhost:9292' \
	--header 'Access-Control-Request-Headers: Origin, Accept, Content-Type' \
	--header 'Access-Control-Request-Method: GET'


	# http://nils-blum-oeste.net/cors-api-with-oauth2-authentication-using-rails-and-angularjs/#.UQJeLkp4ZyE

	# command to generate dhparams.pen
	# openssl dhparam -out /etc/nginx/conf.d/dhparams.pem 2048

	limit_conn_zone $binary_remote_addr zone=conn_limit_per_ip:10m;
	limit_req_zone $binary_remote_addr zone=req_limit_per_ip:10m rate=5r/s;
	limit_req_status 444;
	limit_conn_status 503;

	proxy_cache_path /var/lib/nginx/proxy levels=1:2 keys_zone=backcache:8m max_size=50m;
	proxy_cache_key "$scheme$request_method$host$request_uri$is_args$args";

	# save this file in /etc/default/unicorn_app
	USER=app_user
	APP_ROOT=/srv/app
	RVM_STRING=2.2.4@app_gemset
	RACK_ENV=production
	UNICORN_OPTS="-D -c /srv/app/shared/config/unicorn.rb -E production"
	DAEMON=unicorn

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048