X-Git-Url: https://git.mdrn.pl/fnpdjango.git/blobdiff_plain/218e31d1bc487866571736e4aa94180fd00884e3..3d8f2a5f394afdc55333e6c2ce98dd391bf478d2:/fnpdjango/deploy/__init__.py diff --git a/fnpdjango/deploy/__init__.py b/fnpdjango/deploy/__init__.py index 41089bf..0ba4477 100644 --- a/fnpdjango/deploy/__init__.py +++ b/fnpdjango/deploy/__init__.py @@ -10,9 +10,16 @@ Then set up some env properties: user: remote user name app_path: where does the app go services: list of tasks to run after deployment - + django_root_path (optional): path to the directory + containing django project, relative to the + root of the repository (defaults to '.') + localsettings_dst_path (optional): path indicating + where to copy the localsettings file, relative + to django_root_path (defaults to project_name/localsettings.py) + skip_collect_static (optional): if True, Django collectstatic command is not called """ from os.path import abspath, dirname, exists, join +from django.utils.crypto import get_random_string from fabric.api import * from fabric.contrib import files from fabric.tasks import Task, execute @@ -24,17 +31,27 @@ env.services = None @task def setup(): """ - Setup a fresh virtualenv as well as a few useful directories. - virtualenv should be already installed. + Setup all needed directories. """ - require('hosts', 'app_path', 'virtualenv') + require('hosts', 'app_path') - run('mkdir -p %(app_path)s' % env, pty=True) - run('%(virtualenv)s %(app_path)s/ve' % env, pty=True) - run('mkdir -p %(app_path)s/releases %(app_path)s/packages %(app_path)s/log' % env, pty=True) - run('cd %(app_path)s/releases; ln -sfT . current; ln -sfT . previous' % env, pty=True) + if not files.exists(env.app_path): + run('mkdir -p %(app_path)s' % env, pty=True) + with cd(env.app_path): + for subdir in 'releases', 'packages', 'log', 'samples': + if not files.exists(subdir): + run('mkdir -p %s' % subdir, pty=True) + with cd('%(app_path)s/releases' % env): + if not files.exists('current'): + run('ln -sfT . current', pty=True) + if not files.exists('previous'): + run('ln -sfT . previous', pty=True) + upload_samples() - print "Fill out db details in localsettings.py and run deploy." + + +def check_localsettings(): + return files.exists('%(app_path)s/localsettings.py' % env) @task(default=True) @@ -49,12 +66,16 @@ def deploy(): import time env.release = time.strftime('%Y-%m-%dT%H%M') - check_setup() + setup() + if not check_localsettings(): + abort('Setup is complete, but\n %(app_path)s/localsettings.py\n' + 'is needed for actual deployment.' % env) upload_tar_from_git() - install_requirements() copy_localsettings() + install_requirements() symlink_current_release() migrate() + pre_collectstatic() collectstatic() restart() @@ -100,7 +121,12 @@ def restart(): # ===================================================================== # = Helpers. These are called by other functions rather than directly = # ===================================================================== -class DebianGunicorn(Task): + +class Service(Task): + def upload_sample(self): + pass + +class DebianGunicorn(Service): def __init__(self, name): super(Task, self).__init__() self.name = name @@ -109,13 +135,16 @@ class DebianGunicorn(Task): print '>>> restart webserver using gunicorn-debian' sudo('gunicorn-debian restart %s' % self.name, shell=False) -class Apache(Task): + def upload_sample(self): + upload_sample('gunicorn') + +class Apache(Service): def run(self): print '>>> restart webserver by touching WSGI' with path('/sbin'): run('touch %(app_path)s/%(project_name)s/wsgi.py' % env) -class Supervisord(Task): +class Supervisord(Service): def __init__(self, name): super(Task, self).__init__() self.name = name @@ -124,46 +153,43 @@ class Supervisord(Task): print '>>> supervisord: restart %s' % self.name sudo('supervisorctl restart %s' % self.name, shell=False) -def check_setup(): - require('app_path') - try: - run('[ -e %(app_path)s/ve ]' % env) - except SystemExit: - print "Environment isn't ready. Run `fab setup` first." - raise +class Command(Task): + def __init__(self, commands, working_dir): + if not hasattr(commands, '__iter__'): + commands = [commands] + self.name = 'Command: %s @ %s' % (commands, working_dir) + self.commands = commands + self.working_dir = working_dir + + def run(self): + require('app_path') + with cd(join('%(app_path)s/releases/current' % env, self.working_dir)): + for command in self.commands: + run(command) def upload_samples(): upload_localsettings_sample() upload_nginx_sample() - upload_gunicorn_sample() + for service in env.services: + service.upload_sample() -def upload_localsettings_sample(): - "Fill out localsettings template and upload as a sample." - print '>>> upload localsettings template' +def upload_sample(name, where="samples/"): require('app_path', 'project_name') - template = '%(project_name)s/localsettings.py.template' + upload_path = '%s/%s%s.sample' % (env['app_path'], where, name) + if files.exists(upload_path): + return + print '>>> upload %s template' % name + template = '%(project_name)s/' % env + name + '.template' if not exists(template): - template = join(dirname(abspath(__file__)), 'templates/localsettings.py.template') - env.secret_key = '' # sth random - files.upload_template(template, '%(app_path)s/localsettings.py.sample' % env, env) + template = join(dirname(abspath(__file__)), 'templates/' + name + '.template') + files.upload_template(template, upload_path, env) -def upload_nginx_sample(): - "Fill out nginx conf template and upload as a sample." - print '>>> upload nginx template' - require('app_path', 'project_name') - template = '%(project_name)s/nginx.template' - if not exists(template): - template = join(dirname(abspath(__file__)), 'templates/nginx.template') - files.upload_template(template, '%(app_path)s/nginx.sample' % env, env) +def upload_localsettings_sample(): + "Fill out localsettings template and upload as a sample." + env.secret_key = get_random_string(50) + upload_sample('localsettings.py', where="") -def upload_gunicorn_sample(): - "Fill out gunicorn conf template and upload as a sample." - print '>>> upload gunicorn template' - require('app_path', 'project_name') - template = '%(project_name)s/gunicorn.template' - if not exists(template): - template = join(dirname(abspath(__file__)), 'templates/gunicorn.template') - files.upload_template(template, '%(app_path)s/gunicorn.sample' % env, env) +upload_nginx_sample = lambda: upload_sample('nginx') def upload_tar_from_git(): "Create an archive from the current Git branch and upload it" @@ -183,7 +209,23 @@ def install_requirements(): print '>>> install requirements' require('release', provided_by=[deploy]) require('app_path') - run('cd %(app_path)s; ve/bin/pip install -r %(app_path)s/releases/%(release)s/requirements.txt' % env, pty=True) + if not files.exists('%(app_path)s/ve' % env): + require('virtualenv') + run('%(virtualenv)s %(app_path)s/ve' % env, pty=True) + with cd('%(app_path)s/releases/%(release)s' % env): + run('%(app_path)s/ve/bin/pip install -r requirements.txt' % env, pty=True) + with cd(get_django_root_path(env['release'])): + # Install DB requirement + database_reqs = { + 'django.db.backends.postgresql_psycopg2': 'psycopg2', + 'django.db.backends.mysql': 'MySQL-python', + } + databases = run('''DJANGO_SETTINGS_MODULE=%(project_name)s.settings %(app_path)s/ve/bin/python -c 'from django.conf import settings; print " ".join(set([d["ENGINE"] for d in settings.DATABASES.values()]))' ''' % env) + for database in databases.split(): + if database in database_reqs: + # TODO: set pip default pypi + run('%(app_path)s/ve/bin/pip install ' % env + database_reqs[database]) + def copy_localsettings(): "Copy localsettings.py from root directory to release directory (if this file exists)" @@ -192,7 +234,8 @@ def copy_localsettings(): require('app_path', 'project_name') with settings(warn_only=True): - run('cp %(app_path)s/localsettings.py %(app_path)s/releases/%(release)s/%(project_name)s' % env) + copy_to = join(get_django_root_path(env['release']), env.get('localsettings_dst_path', env['project_name'])) + run('cp %(app_path)s/localsettings.py ' % env + copy_to) def symlink_current_release(): "Symlink our current release" @@ -207,13 +250,29 @@ def migrate(): "Update the database" print '>>> migrate' require('app_path', 'project_name') - with cd('%(app_path)s/releases/current' % env): + with cd(get_django_root_path('current')): run('%(app_path)s/ve/bin/python manage.py syncdb --noinput' % env, pty=True) run('%(app_path)s/ve/bin/python manage.py migrate' % env, pty=True) +def pre_collectstatic(): + print '>>> pre_collectstatic' + for task in env.get('pre_collectstatic', []): + execute(task) + def collectstatic(): """Collect static files""" print '>>> collectstatic' + if env.get('skip_collect_static', False): + print '... skipped' + return require('app_path', 'project_name') - with cd('%(app_path)s/releases/current' % env): + with cd(get_django_root_path('current')): run('%(app_path)s/ve/bin/python manage.py collectstatic --noinput' % env, pty=True) + + +def get_django_root_path(release): + require('app_path') + path = '%(app_path)s/releases/%(release)s' % dict(app_path = env['app_path'], release = release) + if 'django_root_path' in env: + path = join(path, env['django_root_path']) + return path