samdark

2019-03-26 by Matt Allan

Original URL: https://mattallan.me/posts/how-php-environment-variables-actually-work/

Introduction

Laravel, Symfony, and other modern PHP frameworks use environment variables to store security credentials and configuration that changes from one machine to the next.

The latest Laravel release made a small change to the way environment variables are loaded. This change ended up breaking third-party libraries and Laravel itself.

murdercode

Laravel + FastCGI Cache = ❤️

⚠️ Need a more specific guide? See https://medium.com/@murdercode/speed-up-your-laravel-application-up-to-1000x-with-fastcgi-cache-0135b11407e5

Using FastCGI cache allows you to speed up your website up to 1000x. In fact, the FastCGI cache (or Varnish) mechanism consists of putting a server-caching mechanism between a client and your web server. The whole page will be cached as an HTML output, and it will be delivered instead of using the PHP/MySQL/Redis stack, etc. for all users, but only for the first visit (and others after some specified time).

WARNING: This is not a take-away how-to. Please read it carefully and use it at your own risk.

This config is based on the ploi.io stack. We will not cover the FastCGI installation process, so please prepare FastCGI and adapt the next config if you need it.

camilb

# file: aws_eks_config.yml
# AWS EKS ClusterConfig used to setup the BinderHub / JupyterNotebooks K8s cluster
# using a workaround from https://discourse.jupyter.org/t/binder-deployed-in-aws-eks-domain-name-resolution-errors/766/10
# to fix broken DNS resolution
--- 
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: eks-dns-production

mrdima

#!/bin/bash
# Inserts or removes iptables rules to prevent snat to the hosts local weave ip ranges
# This way the source ip will be retained for traffic not coming from weave
# Requires weave to be running, the script does wait for weave report to respond
echo running $0 $1
action="${1:-start}"
echo action: ${action}
#functions taken from: https://stackoverflow.com/questions/10768160/ip-address-converter
dec2ip () {
    local ip dec=$@

htoyryla

# git clone from https://github.com/tkarras/progressive_growing_of_gans
# download the snapshot from their Google drive
# use the following code in the same directory to generate random faces
import os
import sys
import time
import glob
import shutil
import operator
import theano

apeckham

{
	"service_id":"%{req.service_id}V",
	"service_version":"%{fastly_info.version}V",
	"time_start":%{begin:msec}t,
	"time_end":%{end:msec}t,
	"time_elapsed":%{time.elapsed.usec}V,
	"client_ip":"%{req.http.Fastly-Client-IP}V",
	"request":"%{req.request}V",
	"protocol":"%{req.proto}V",
	"host":"%{req.http.Fastly-Orig-Host}V",

mgoodness

AWS Service annotations

• service.beta.kubernetes.io/aws-load-balancer-access-log-emit-interval (in minutes)
• service.beta.kubernetes.io/aws-load-balancer-access-log-enabled (true|false)
• service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-name
• service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-prefix
• service.beta.kubernetes.io/aws-load-balancer-additional-resource-tags (comma-separated list of key=value)
• service.beta.kubernetes.io/aws-load-balancer-backend-protocol (http|https|ssl|tcp)
• service.beta.kubernetes.io/aws-load-balancer-connection-draining-enabled (true|false)

thomasfr

#!/bin/bash

# warmly.sh
# A wget based, easy, poor man`s cache warmer script
# https://gist.github.com/thomasfr/7926314

# The MIT License (MIT)
#
# Copyright (c) 2013,2014 Thomas Fritz <fritztho@gmail.com> (http://fritzthomas.com)
#

chales

# This can be added to your cron job to run right after Drupal's cron or combine them into a single command so 
# that it automatically executes when the cron run completes.
wget -q http://www.example.com/sitemap.xml -O - | egrep -o "http://www\.example\.com[^<]+" | wget -q -i - -O /dev/null --wait 1

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'