blisabda

A complete overview of PHP session handler life cycle

The purpose of this document is to provide a complete overview of the PHP session handler life cycle updated to version 7.0 or above. In particular, I want to emphasize what methods and in what order are called when the native PHP functions are used for session management.
I created this document because the information on the web and the official documentation are very superficial on this topic, in particular on what concerns the implementation of a safe and stable session handler.

Overview

The goal of this document to cover all aspects of Kubernetes management, including how resources are expressed, constrained and accounted for. This started a way to ensure that alternate container runtime implementation like Kata containers will behave from a resource accounting and consumption point of view in the same manner as runc.

Location of the latest version of this document: https://gist.github.com/mcastelino/b8ce9a70b00ee56036dadd70ded53e9f

If you do not understand cgroups please refer to a quick primer at the bottom of this document. This will help you understand how the resource enforcement actually works.

Kubernetes Resource Management

Helm 3 is storing description of it's releases in secrets. You can simply find them via

$ kubectl get secrets
NAME                                                TYPE                                  DATA   AGE
sh.helm.release.v1.wordpress.v1                     helm.sh/release.v1                    1      1h

If you want to get more info about the secret, you can try to describe the secret

$ kubectl describe secret sh.helm.release.v1.wordpress.v1

	"""
	Server to answer requests from Libvirt VMs to http://169.254.169.254/
	Cloud images usually don't have a preset user/password, and this is needed to add a ssh pub key to .ssh/authorized_hosts.
	Change SSH_PUB_KEY path below.

	pip install bottle

	sudo ip address add 169.254.169.254 dev virbr0
	open firewall
	-A ufw-user-input -s 192.168.122.0/24 -d 169.254.169.254/32 -i virbr0 -p tcp -m tcp --dport 80 -j ACCEPT

	backend be_servers
	balance roundrobin
	server s1 server1:80 maxconn 10
	server s2 server2:80 maxconn 10
	server s3 server3:80 maxconn 10

	package main

	/*
	Golang SSHAgent Usage
	https://orebibou.com/2019/03/golang%E3%81%A7ssh-agent%E3%81%8B%E3%82%89%E9%8D%B5%E3%82%92%E5%8F%96%E5%BE%97%E3%81%97%E3%81%A6ssh%E6%8E%A5%E7%B6%9A%E3%81%99%E3%82%8B/
	*/

	import (
	"fmt"
	"golang.org/x/crypto/ssh"


	#this
	ffmpeg -loglevel debug -f hls -referer 'https://10play.com.au/live' -user_agent 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/82.0.4050.0 Safari/537.36' -f hls -i "https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/6bd7fe89-1f2f-42d0-b7a5-c676791a0d83/10s/master.m3u8?fastly_token=NWUzZDliOGZfNTJhZjJhN2IxMzQ5OTdjNGVkYmEzODkwNjYwZTYyMWY2ZmY1YjNmNGJkNWM3NjdiNDFiZmViNjczNzMwMmJlYQ%3D%3D" -c copy project5.mp4

	# or this
	ffmpeg -loglevel debug -f hls -referer 'https://10play.com.au/live' -user_agent 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/82.0.4050.0 Safari/537.36' -f hls -i "https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/6bd7fe89-1f2f-42d0-b7a5-c676791a0d83/10s/master.m3u8?fastly_token=NWUzZDliOGZfNTJhZjJhN2IxMzQ5OTdjNGVkYmEzODkwNjYwZTYyMWY2ZmY1YjNmNGJkNWM3NjdiNDFiZmViNjczNzMwMmJlYQ%3D%3D" -c copy -bsf:a aac_adtstoasc project3.mp4

	Go step-by-step through following instructions to set up L2TP/IPSec VPN on Centos 7.

	To set up the VPN client on centos 7, first install the following packages:

	yum -y install epel-release
	yum -y install strongswan xl2tpd

	Create VPN variables (replace with actual values):
	VPN_SERVER_IP='your_vpn_server_ip'

	import asyncio

	# Ref: https://docs.python.org/3/library/asyncio-eventloop.html#asyncio.get_event_loop
	# > If there is no current event loop set in the current OS thread,
	# > the OS thread is main, and set_event_loop() has not yet been called,
	# > asyncio will create a new event loop and set it as the current one
	loop = asyncio.get_event_loop()

	# So, loop2 is loop
	loop2 = asyncio.get_event_loop()

	# Source: https://gist.github.com/28e2adb5946ca366d7845780608591d7

	###########################################################
	# Argo Workflows & Pipelines #
	# CI/CD, Machine Learning, and Other Kubernetes Workflows #
	# https://youtu.be/UMaivwrAyTA #
	###########################################################

	# Referenced videos:
	# - Argo CD - Applying GitOps Principles To Manage Production Environment In Kubernetes: https://youtu.be/vpWQeoaiRM4