fabfile to deploy flask app to nginx/supervisor/uwsgi stack

.gitignore

.idea/*
*.pyc

fabfile.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import StringIO

from fabric.api import *
from fabric.operations import get, put
from jinja2 import Template

env.hosts = ['vps']
env.user = "starenka"

VHOST = 'my.domain.net'
APPS_DIR = '/www'
APP_ROOT = '%s%s' % (APPS_DIR, VHOST.replace('.', '_'))
MODULE = 'main_app_module_filename'

REPOS = '/repos/hg'
STATIC = 'static'
SUPERVISOR_DIR = '/etc/supervisor/conf.d/'
NGINX_DIR = '/etc/nginx/sites-'

def _render_template(string, context):
    return Template(string).render(context)


def _make_supervisor_conf():
    template = StringIO.StringIO()
    get('%sflaskapp.tpl' % SUPERVISOR_DIR, template)
    interpolated = StringIO.StringIO()
    interpolated.write(_render_template(template.getvalue(), {
        'domain': VHOST,
        'root': APP_ROOT,
        'module': MODULE
    }))
    put(interpolated, '%(supervisor_dir)s%(vhost)s.conf' % {'supervisor_dir': SUPERVISOR_DIR, 'vhost': VHOST},
        use_sudo=True)


def _make_vhost():
    template = StringIO.StringIO()
    get('%savailable/flask.tpl' % NGINX_DIR, template)
    interpolated = StringIO.StringIO()
    interpolated.write(_render_template(template.getvalue(), {
        'domain': VHOST,
        'root': APP_ROOT,
        'static': STATIC
    }))
    put(interpolated, '%(nginx)savailable/%(vhost)s' % {'nginx': NGINX_DIR, 'vhost': VHOST}, use_sudo=True)
    sudo('ln -s %(src)s %(tar)s' % {'src': '%(nginx)savailable/%(vhost)s' % {'nginx': NGINX_DIR, 'vhost': VHOST},
                                    'tar': '%(nginx)senabled/%(vhost)s' % {'nginx': NGINX_DIR, 'vhost': VHOST}}
    )
    run('touch %s/access.log' % APP_ROOT)
    run('touch %s/error.log' % APP_ROOT)


def _clone_repo():
    with cd(APPS_DIR):
        run('hg clone %(repos)s%(vhost)s %(to)s' % {'repos': REPOS, 'vhost': VHOST, 'to': APP_ROOT})


def _update_repo():
    with cd(APP_ROOT):
        run('hg pull')
        run('hg up -C default')


def _reload_webserver():
    sudo("/etc/init.d/nginx reload")


def _reload_supervisor():
    sudo('supervisorctl update')


def _start_app():
    sudo('supervisorctl start %s' % VHOST)


def _reload_app(touch=True):
    if touch:
        with cd(APP_ROOT):
            run('touch app.wsgi')
    else:
        sudo('supervisorctl restart %s' % VHOST)


def init_deploy():
    _clone_repo()
    _make_vhost()
    _make_supervisor_conf()
    _reload_webserver()
    _reload_supervisor()
    _start_app()


def deploy():
    _update_repo()
    _reload_app()

nginx_flask.tpl

server {
        listen          80;
        server_name     {{ domain }};
        root            {{ root }};

        access_log      {{ root }}/access.log;
        error_log       {{ root }}/error.log;

        location / {
                uwsgi_pass      unix:///{{ root }}/uwsgi.sock;
                include         uwsgi_params;
        }

        location /static {
                alias           {{ root }}/{{ static }};
        }
}

supervisor_flask.tpl

[program:{{ domain }}]
command=/usr/local/bin/uwsgi
  --socket uwsgi.sock
  --pythonpath /
  --touch-reload /app.wsgi
  --chmod-socket 666
  --uid www-data
  --gid www-data
  --processes 1
  --master
  --no-orphans
  --max-requests 5000
  --module {{ module }}
  --callable app
directory={{ root }}
stdout_logfile={{ root }}/uwsgi.log
user=www-data
autostart=true
autorestart=true
redirect_stderr=true
stopsignal=QUIT