Example deployment of a Node app using Fabric

fabfile.py

#!/usr/local/bin/python3

# List tasks with fab2 -l

import os
import os.path as path
from fabric2 import Config, Connection, task
import patchwork.transfers as transfer

# Define values in .env file.
HOST = os.environ['HOST']  # The server you want to deploy to.
USER = os.environ['USER']  # The server user (/home/{USER}/)
SOURCE_DIR = f"{path.abspath(path.dirname(__file__))}/"  # Source folder.
TARGET_DIR = f"home/{USER}/{os.environ['TARGET_DIR']}/"  # Destination folder.
APP_DIR = f"{os.environ['APP_DIR']}"  # The directory of the Node app


# scp file onto remote server
# run with `fab transfer_files`
@task
def transfer_files(ctx):
  c = Connection(host=HOST, user=USER)
  transfer.rsync(c, SOURCE_DIR, TARGET_DIR)
  c.close()

# install dependencies and run project.
# run with `fab deploy`
@task
def deploy(ctx):
  conf = Config()
  conf.load_ssh_config()
  with Connection(config=conf, host=HOST, user=USER) as c:
    c.run(f'cd {TARGET_DIR}/{APP_DIR}/ && npm install && npm run start')
    c.close()