2-do_deploy_web_static.py

#!/usr/bin/python3
'''
fabric script to distribute an archive to web servers
----NEEDS TO REVISIT SCRIPT
'''

import os
from datetime import datetime
from fabric.api import env, local, put, run, runs_once


env.hosts = ['54.144.147.110', '35.153.79.54']


def do_deploy(archive_path):
"""Distributes an archive to a web server.
Args:
archive_path (str): The path of the archive to distribute.
Returns:
If the file doesn't exist at archive_path or an error occurs - False.
Otherwise - True.
"""
if not os.path.isdir("versions"):
os.mkdir("versions")
cur_time = datetime.now()
output = "versions/web_static_{}{}{}{}{}{}.tgz".format(
cur_time.year,
cur_time.month,
cur_time.day,
cur_time.hour,
cur_time.minute,
cur_time.second
)
try:
print("Packing web_static to {}".format(output))
local("tar -cvzf {} web_static".format(output))
archize_size = os.stat(output).st_size
print("web_static packed: {} -> {} Bytes".format(output, archize_size))
except Exception:
output = None
return output


def do_deploy(archive_path):
"""Deploys the static files to the host servers.
Args:
archive_path (str): The path to the archived static files.
"""
if not os.path.exists(archive_path):
return False
file_name = os.path.basename(archive_path)
folder_name = file_name.replace(".tgz", "")
folder_path = "/data/web_static/releases/{}/".format(folder_name)
success = False
try:
put(archive_path, "/tmp/{}".format(file_name))
run("mkdir -p {}".format(folder_path))
run("tar -xzf /tmp/{} -C {}".format(file_name, folder_path))
run("rm -rf /tmp/{}".format(file_name))
run("mv {}web_static/* {}".format(folder_path, folder_path))
run("rm -rf {}web_static".format(folder_path))
run("rm -rf /data/web_static/current")
run("ln -s {} /data/web_static/current".format(folder_path))
print('New version deployed!')
success = True
except Exception:
success = False
return success