part_2.txt

In this file i will  try to explain how to proceed

Task0: 
1. I should first install ngnix
	sudo apt -y update
	sudo apt install -y nginx
2. I  have to create this folders if don't exist	:
	-/data/web_static/releases/
	-/data/web_static/shared/
	-/data/web_static/releases/test/
so to do that i should use mkdir with the -p option

3. I have also to create /data/web_static/releases/test/index.html html file with a  simple content for testing my nginx config

4. I should create a symbolic link between 
/data/web_static/current -> /data/web_static/releases/test/

5. Change the data ownship folder to user and group
chown -R ubuntu and chgrp -R AND

6. update the Nginx config to serve the content of /data/web_static/current/ to hbnb_static

Inside the file /etc/nginx/sites-avaible/default i should add inside the server block 
server {
	#Previous content
	location /hbnb_static {
		alias /data/web_static/current/;
	}
}
NB: Before that make sure that /etc/nginx/sites-enabled/default is linked whith /etc/nginx/site-available/default
==> if [ ! -L /etc/nginx/sites-enabled/default ];==> return true if no symbolik link exist.


Task1: Create an archive tgz using fabric
First let's import local because the command should executed in
local.
from fabric.api import local
The archive will be done using tar -czvf web_static_<year><month><day><hour><minute><second>.tgz /data/web_static

==> web_static_<year><month><day><hour><minute><second>.tgz: will be formed using datetime python module since fabric is a python libary and python file. So let's import datetime from datetim
and use it to construct the full name of our archive.
date = datetime.now().strftime("%Y%m%d%H%M%S")
archive_name = f'web_static_{date}.tgz

==> tar -czvf archive_name /data/web_static
Finally the archive should be saved in versions directory.
if not os.path.exists(versions):
	local("mkdir versions)
so our fuction do_pack() will be 
try:
	if not os.path.exists(versions):
		local("mkdir versions)
	date = datetime.now().strftime("%Y%m%d%H%M%S")
	archive_name = f'web_static_{date}.tgz
	local ("tar -czvf versions/archive_name web_static"

NB: If your code doesn't work replace this line if not os.path.exists(versions): by ==> if not os.path.isdir("versions") is False:

Task2: distributes an archive to your web servers, using the function do_deploy
1.check iif the archive_path exist: 
if not os.path.isfile(archive_name) is False==>return False
2. 
	a. upload the archive to the /tmp/ directory of web servers
	env.hosts = ['IP web01', 'IP web02']
	a = put ("archive_path", /tmp/)
	if a.failed is True
		return FAlse
	b. Uncompress the archive to the folder /data/web_static/releases/<archive filename without extension> on the web server
	new_path = archive_path.split('/')[-1]
	folder = new_path.split(".")[0]
	run (tar -xzf /tmp/archive_path -C /data/web_static/releases/)
	
	c. Delete the archive from web server
	run ("rm  /tmp/archive_path")
	
	d. Delete symbolic link
	run ("rm -rf /data/web_static/current

	e. Create a new  the symbolic link /data/web_static/current on the web server, linked to the new version of your code (/data/		web_static/releases/<archive filename without extension>)
	Before creating the symbolic link let's move the uncompressed  content to the parent directory
	mv /data/web_static/releases/folder/web_static/* /data/web_static/releases/folder
	then delete the web_static
	rm -rf /data/web_static/releases/folder/web_static
	ln -sf /data/web_static/releases/folder/  /data/web_static/current