Ahmed Abdeazim ahmed-abdelazim

Here's a complete tutorial that will guide you through setting up an automated deployment pipeline using GitHub Actions, Docker Compose, and Docker Hub. This will deploy any code pushed to the main branch to a Docker Compose server. Let’s break down the process step-by-step.

Prerequisites

Docker & Docker Compose installed on your server.
Docker Hub account or access to another Docker registry.
GitHub repository containing your application code.
SSH access to your Docker server.

Step 1: Create a Dockerfile

Doing upgrade of Centos 7 server to Centos 8. Step to step guide.

1. Migrating backup of working system to virtual guest or another server.

Preparation of test image. Boot from Centos 7 CD into troubleshoot mode and skip to shell. Prepare disks of guest machine. Make partitions and filesystems.

Sda2 - boot - ext2

	export YourSSLDomain=mail.yourdomain.com
	# Renew or generate cert
	certbot renew
	# Copy cert
	cp /etc/letsencrypt/live/$YourSSLDomain/* /opt/zimbra/ssl/letsencrypt
	chown zimbra:zimbra /opt/zimbra/ssl/letsencrypt/*

	# if first time copy the key to the right place
	cp /etc/letsencrypt/live/$YourSSLDomain/privkey.pem /opt/zimbra/ssl/zimbra/commercial/commercial.key
	# fix permissions

	#!/bin/bash
	CLOUDFRONT_DISTRIBUTION_ID=E2C3RNL2F4MRMQ
	NEW_ORIGIN="origin2-zaid.s3.us-west-2.amazonaws.com"
	ETAG=`aws cloudfront get-distribution --id $CLOUDFRONT_DISTRIBUTION_ID \| jq -r .ETag`
	aws cloudfront get-distribution --id $CLOUDFRONT_DISTRIBUTION_ID \| \
	jq --arg NEW_ORIGIN "$NEW_ORIGIN" '.Distribution.DistributionConfig.Origins.Items[0].Id=$NEW_ORIGIN' \| \
	jq --arg NEW_ORIGIN "$NEW_ORIGIN" '.Distribution.DistributionConfig.Origins.Items[0].DomainName=$NEW_ORIGIN' \| \
	jq --arg NEW_ORIGIN "$NEW_ORIGIN" '.Distribution.DistributionConfig.DefaultCacheBehavior.TargetOriginId=$NEW_ORIGIN' \| \
	jq .Distribution.DistributionConfig > config.json
	aws cloudfront update-distribution --id $CLOUDFRONT_DISTRIBUTION_ID --distribution-config "file://config.json" --if-match $ETAG > /dev/null

	RewriteEngine On
	RewriteRule ^$ http://127.0.0.1:3020/ [P,L]
	RewriteCond %{REQUEST_FILENAME} !-f
	RewriteCond %{REQUEST_FILENAME} !-d
	#RewriteRule ^(.*)$ http://127.0.0.1:3020/$1 [P,L]
	RewriteRule ^/?resources/(.*)$ http://127.0.0.1:3020/resources/$1 [L,P]

	<!doctype html>
	<html ng-app="app">
	<head>

	</head>
	<body>

	<div ng-controller="LayoutViewController as $ctrl" class="container">

	<div class="row">

	import multiprocessing.pool
	import time

	def theout(i):
	print(i)
	time.sleep(1)

	pool = multiprocessing.pool.Pool(processes=10)
	pool.map(theout, range(100))

	ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'the-password';
	SELECT user,authentication_string,plugin,host FROM mysql.user;
	FLUSH PRIVILEGES;

	#!/bin/sh

	IPT="/sbin/iptables"

	# Set default policies for all three default chains
	$IPT -P INPUT ACCEPT
	$IPT -P FORWARD ACCEPT
	$IPT -P OUTPUT ACCEPT

	# Flush old rules, old custom tables

	# Linode token
	dns_linode_key = YOUR_ACCESS_TOKEN