Fabric file for deploying a flask installation including mongodb.

gistfile1.txt

# -*- coding: utf-8 -*-

# Fabric file for deploying a flask installation including mongodb.
#
# Interesting tasks are:
#
#  * purge: Remove everything but the application and the git repository.
#  * purge_conf: Purge configurations.
#  * purge_dep: Uninstall all packages.
#  * deploy: Deploy the flask application to "/home/flask/*project_name*".
#  * update: Update the app from the remote repository.
#  * update_from_local(local_path): Update application from local sources.
#
# Version 0.2.0
#
#  * Made all directories dynamically configurable in the beginning.
#
# Version 0.1.2

from fabric.api import cd, env, puts, run, put
from fabric.context_managers import settings
from fabric.contrib.files import exists

# Server data.
env.hosts = ['127.0.0.1:2222']
env.user = 'root'
env.password = 'test'

# Project data.
project_name = "cgadmin"

project_path = '/home/flask/{0}'.format(project_name)
project_app_path = '{}/{}'.format(project_path, project_name)

project_user = "admin"
project_passwd = "password"

project_git = 'https://deadbok@bitbucket.org/deadbok/vestacp_vps_install.git'
project_git_path = 'vestacp_vps_install/new-server/web'

# Software to install.
python_requirements = ['pymongo', 'Flask-PyMongo', 'Flask-WTF', 'Flask-Uploads']
debian_packages = ['python-dev', 'python-flask', 'python-flask-login',
                   'fabric', 'python-m2crypto',
                   'python-unidecode', 'python-pip', 'git', 'nginx', 'gunicorn',
                   'supervisor', 'htop', 'mc']

# Configurations
supervisor_conf = """
[program: {0}]
command = python {1}/run.py
directory = {1}
autostart = true
autorestart = true
stdout_logfile = {1}/stdout.log
stderr_logfile = {1}/stderr.log
redirect_stderr = true
""".format(project_name, project_path)

nginx_conf = """
server {{
    listen 80;

    root {1};
    access_log {0}/nginx-access.log;
    error_log {0}/nginx-error.log;

    location / {{
        proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        if (!-f $request_filename) {{
            proxy_pass http://127.0.0.1:5000;
            break;
        }}
    }}

    location /static {{
        alias  {1}/static/;
        autoindex on;
    }}
}}
""".format(project_path, project_app_path)
mongod_conf = """
# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: /var/lib/mongodb
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log

# network interfaces
net:
  port: 27017
#  bindIp: 127.0.0.1

#processManagement:

#security:

#operationProfiling:

#replication:

#sharding:

## Enterprise-Only Options:

#auditLog:

#snmp:
"""


# Tasks

def install_basics():
    run('apt-get update')
    run('apt-get install -y {}'.format(' '.join(debian_packages)))
    run('pip install {}'.format(' '.join(python_requirements)))
    if not exists('/home/flask'):
        run('mkdir /home/flask')


def install_mongo():
    run(
        'apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6')
    run(
        "echo 'deb http://repo.mongodb.org/apt/debian jessie/mongodb-org/3.4 main' | tee /etc/apt/sources.list.d/mongodb-org-3.4.list")
    run('apt-get update')
    run('apt-get install -y mongodb-org')
    run(" echo '{}' ".format(mongod_conf) + '> /etc/mongod.conf')
    run('service mongod start')
    run('systemctl enable mongod')


def get_app():
    if not exists('/root/{}'.format(project_git_path)):
        run(
            'git clone {}'.format(project_git))
    else:
        with cd('/root/{}'.format(project_git_path)):
            run('git pull')
    if not exists('/home/flask/{}'.format(project_name)):
        run('mkdir /home/flask/{}'.format(project_name))
    with cd('/home/flask'):
        run(
            'cp -Rva /root/vestacp_vps_install/new-server/web/* /home/flask/cgadmin/')
        # For tests
        # with cd('/home/flask/{}'.format(project_name)):
        # run('python {}_tests.py'.format(project_name))


def adjust_nginx():
    run('service nginx start')

    default_file = '/etc/nginx/sites-enabled/default'
    if exists(default_file):
        run('rm ' + default_file)

    with cd('/etc/nginx/sites-available'):
        run("echo '{}' ".format(nginx_conf) + '> {}'.format(project_name))
    if not exists('/etc/nginx/sites-enabled/{}'.format(project_name)):
        run('ln -s /etc/nginx/sites-available/{}'.format(project_name) + \
            ' /etc/nginx/sites-enabled/{}'.format(project_name))
    run('service nginx restart')
    run('systemctl enable nginx')


def adjust_supervisor():
    run("echo '{}' ".format(supervisor_conf) + \
        '> /etc/supervisor/conf.d/{}.conf'.format(project_name))
    run('supervisorctl reread')
    run('supervisorctl update')


def run_flask():
    run('supervisorctl stop {}'.format(project_name))
    run('supervisorctl start {}'.format(project_name))
    run('supervisorctl status')


def purge_conf():
    with settings(warn_only=True):
        run('rm -f /etc/mongod.conf')
        run('rm -f /etc/supervisor/conf.d/{}.conf'.format(project_name))
        run('rm -f /etc/nginx/sites-available/{}'.format(project_name))
        run('rm -f /etc/nginx/sites-enabled/{}'.format(project_name))


def purge_dep():
    with settings(warn_only=True):
        run('pip uninstall -y {}'.format(' '.join(python_requirements)))
        run('apt-get purge -y mongodb-org')
        run('apt-get purge -y {}'.format(' '.join(debian_packages)))


def purge():
    purge_conf()
    purge_dep()


def deploy():
    install_basics()
    install_mongo()
    get_app()
    adjust_nginx()
    adjust_supervisor()
    run_flask()


def update():
    get_app()
    run_flask()


def update_from_local(local_path):
    put(local_path=local_path, remote_path='/home/flask/{}/{}'.format(project_name))
    run_flask()