yurkinx

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

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

	import os
	import shutil
	import pathlib
	from datetime import datetime

	def post_save(model, os_path, contents_manager):
	"""post-save hook for saving backups of jupyter files."""
	if model['type'] != 'notebook':
	return # only do this for notebooks
	directory, filename = os.path.split(os_path)

	# adduser nginx
	adduser nginx

	# Install linux update, followed by GCC and Make
	sudo yum -y update
	sudo yum install -y gcc make

	# Install Nginx and PHP-FPM
	sudo yum install -y nginx php56-fpm

	<?php
	namespace console\controllers;
	use \Yii;
	class ReverseController extends \yii\console\Controller
	{

	public function actionMigrate() {
	// $schema = $args[0];
	$tables = Yii::$app->db->schema->getTableSchemas();

	<html>
	<!-- See also: http://kempe.net/blog/2014/06/14/leaflet-pan-zoom-image.html -->
	<head>
	<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css"></script>
	<style>
	#image-map {
	width: 100%;
	height: 300px;
	border: 1px solid #ccc;
	margin-bottom: 10px;

	<?php
	namespace console\controllers;
	use \Yii;
	class ReverseController extends \yii\console\Controller
	{

	public function actionMigrate() {
	// $schema = $args[0];
	$tables = Yii::$app->db->schema->getTableSchemas();

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

	$ cd ~
	$ sudo curl -sS https://getcomposer.org/installer \| sudo php
	$ sudo mv composer.phar /usr/local/bin/composer
	$ sudo ln -s /usr/local/bin/composer /usr/bin/composer

	then you can run
	$ sudo composer install