def deploy(branch=None):
"""Deploy to a given environment."""
require("environment")
if branch is not None:
env.branch = branch
requirements = False
migrations = False
# Fetch latest changes
with cd(env.code_root):
with settings(user=env.project_user):
sshagent_run("git fetch origin")
# Look for new requirements or migrations
requirements = match_changes(env.branch, "'requirements\/'")
migrations = match_changes(env.branch, "'\/migration\/'")
if requirements or migrations:
supervisor_command("stop %(environment)s:*" % env)
run("git reset --hard origin/%(branch)s" % env)
if requirements:
update_requirements()
# New requirements might need new tables/migrations
syncdb()
elif migrations:
syncdb()
collectstatic()
supervisor_command("restart %(environment)s:*" % env)
def setup_server(*roles):
"""Install packages and add configurations for server given roles."""
require("environment")
# Set server locale
sudo("/usr/sbin/update-locale LANG=en_US.UTF-8")
install_packages(*roles)
if "db" in roles:
if console.confirm(u"Do you want to reset the Postgres cluster?.", default=False):
# Ensure the cluster is using UTF-8
sudo("pg_dropcluster --stop 9.1 main", user="******")
sudo("pg_createcluster --start -e UTF-8 9.1 main", user="******")
postgres.create_db_user(username=env.project_user)
postgres.create_db(name=env.db, owner=env.project_user)
if "app" in roles:
# Create project directories and install Python requirements
project_run("mkdir -p %(root)s" % env)
project_run("mkdir -p %(log_dir)s" % env)
with settings(user=env.project_user):
# TODO: Add known hosts prior to clone.
# i.e. ssh -o StrictHostKeyChecking=no [email protected]
sshagent_run("git clone %(repo)s %(code_root)s" % env)
project_run("git checkout %(branch)s" % env)
# Install and create virtualenv
with settings(hide("everything"), warn_only=True):
test_for_pip = run("which pip")
if not test_for_pip:
sudo("easy_install -U pip")
with settings(hide("everything"), warn_only=True):
test_for_virtualenv = run("which virtualenv")
if not test_for_virtualenv:
sudo("pip install -U virtualenv")
project_run("virtualenv -p python2.6 --clear --distribute %s" % env.virtualenv_root)
path_file = os.path.join(env.virtualenv_root, "lib", "python2.6", "site-packages", "project.pth")
files.append(path_file, env.code_root, use_sudo=True)
sudo("chown %s:%s %s" % (env.project_user, env.project_user, path_file))
sudo("npm install less -g")
update_requirements()
upload_supervisor_app_conf(app_name=u"gunicorn")
upload_supervisor_app_conf(app_name=u"group")
# Restart services to pickup changes
supervisor_command("reload")
supervisor_command("restart %(environment)s:*" % env)
if "lb" in roles:
nginx.remove_default_site()
nginx.upload_nginx_site_conf(site_name=u"%(project)s-%(environment)s.conf" % env)