Add configuration option into Fabric deployment.
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@ -1,13 +1,30 @@
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from fabric.context_managers import env, lcd, cd, prefix
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from fabric.operations import local, run, put
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# TODO Turn into configurable setup.
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DEPLOYABLE_PKG = 'rookeries-deployable.tar.bz2'
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VIRTUALENV = 'rookeries'
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TARGET_FOLDER = '/var/www'
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WEBAPP_PERM_GROUP = 'www-data'
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UWSGI_LOG = '/tmp/rookeries-uwsgi.log'
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UWSGI_SOCKET = ':8001'
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# Default values used by the Vagrant setup.
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DEFAULT_VIRTUALENV = 'rookeries'
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DEFAULT_DEST_DIR = '/var/www'
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DEFAULT_WEBAPP_GROUP_PERMISSIONS = 'www-data'
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DEFAULT_UWSGI_LOG = '/tmp/rookeries-uwsgi.log'
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DEFAULT_UWSGI_SOCKET = ':8001'
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VAGRANT_SYS_NAME = 'vagrant'
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# This is a sample configuration that can be used for deployments.
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VAGRANT_CONFIG = {
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'system_name': VAGRANT_SYS_NAME,
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'virtualenv': DEFAULT_VIRTUALENV,
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'dest': DEFAULT_DEST_DIR,
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'permissions': {
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'group': DEFAULT_WEBAPP_GROUP_PERMISSIONS,
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},
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'uwsgi': {
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'log': DEFAULT_UWSGI_LOG,
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'socket': DEFAULT_UWSGI_SOCKET,
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},
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}
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def vagrant():
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@ -28,31 +45,94 @@ def prepare_pkg():
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local('tar jchf {pkg} rookeries requirements*'.format(pkg=DEPLOYABLE_PKG))
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def deploy(recreate_virtual_env=False):
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"""Deploy a ready-built package for deployment."""
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# TODO Break out into separate tasks.
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put(local_path='../{pkg}'.format(pkg=DEPLOYABLE_PKG), remote_path=TARGET_FOLDER)
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put(local_path='requirements-vagrant.txt', remote_path=TARGET_FOLDER)
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def deploy(recreate_virtual_env=False, config=VAGRANT_CONFIG):
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"""
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Deploy a ready-built package for deployment.
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:param recreate_virtual_env: Flag determining whether to recreate the virtualenv on the remote system.
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:param config: The configuration used as part of the deployment.
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"""
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upload_pkg(config=config)
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if recreate_virtual_env:
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with prefix('source virtualenvwrapper.sh'):
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available_envs = run('lsvirtualenv -b', warn_only=True)
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if not available_envs and VIRTUALENV in available_envs.split():
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run('rmvirtualenv {env}'.format(env=VIRTUALENV))
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create_remote_virtualenv(virtual_env=config['virtualenv'])
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extract_pkg(config=config)
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install_requirements(config=config)
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if 'uwsgi' in config:
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start_uwsgi(config=config)
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if 'touch_file' in config:
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touch_file_to_restart(config=config)
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run('mkvirtualenv {env}'.format(env=VIRTUALENV))
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def upload_pkg(config=VAGRANT_CONFIG):
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"""
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Upload the deployable package.
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:param config: The configuration used as part of the deployment.
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"""
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put(local_path='../{pkg}'.format(pkg=DEPLOYABLE_PKG), remote_path=config['dest'])
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extra_requirements = 'requirements-{system}.txt'.format(system=config['system_name'])
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put(local_path=extra_requirements, remote_path=config['dest'])
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def create_remote_virtualenv(virtual_env=DEFAULT_VIRTUALENV):
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with prefix('source virtualenvwrapper.sh'):
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with cd(TARGET_FOLDER):
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run('tar jxf {pkg}'.format(pkg=DEPLOYABLE_PKG))
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run('chgrp {env} rookeries'.format(env=WEBAPP_PERM_GROUP))
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available_envs = run('lsvirtualenv -b', warn_only=True)
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if not available_envs and virtual_env in available_envs.split():
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run('rmvirtualenv {venv}'.format(venv=virtual_env))
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with cd(TARGET_FOLDER):
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with prefix('workon {env}'.format(env=VIRTUALENV)):
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run('mkvirtualenv {venv}'.format(venv=virtual_env))
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def extract_pkg(config=VAGRANT_CONFIG):
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"""
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Extract the uploaded deployable package.
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:param config: The configuration used as part of the deployment.
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"""
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with cd(config['dest']):
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run('tar jxf {pkg}'.format(pkg=DEPLOYABLE_PKG))
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group_permissions = config['permissions']['group']
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run('chgrp {group} rookeries'.format(group=group_permissions))
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run('chgrp -R {group} *'.format(group=group_permissions))
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run('chmod -R ug+rwx *')
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def install_requirements(config=VAGRANT_CONFIG):
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"""
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Install the necessary package requirements.
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:param config: The configuration used as part of the deployment.
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"""
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with prefix('source virtualenvwrapper.sh'):
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with cd(config['dest']):
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virtual_env = config['virtualenv']
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with prefix('workon {venv}'.format(venv=virtual_env)):
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run('pip install -r requirements.txt')
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run('pip install -r requirements-vagrant.txt') # TODO Find better way of distributing sys requirements.
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run('chgrp -R {group} *'.format(group=WEBAPP_PERM_GROUP))
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run('chmod -R ug+rwx *')
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run('uwsgi --socket {socket} -w rookeries:app --daemonize {log} --master'.format(socket=UWSGI_SOCKET,
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log=UWSGI_LOG))
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run('pip install -r requirements-{system}.txt'.format(system=config['system_name']))
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def start_uwsgi(config=VAGRANT_CONFIG):
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"""
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Extract the uploaded deployable package.
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:param config: The configuration used as part of the deployment.
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"""
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with prefix('source virtualenvwrapper.sh'):
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with cd(config['dest']):
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virtual_env = config['virtualenv']
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uwsgi_socket = config['uwsgi']['socket']
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uwsgi_log = config['uwsgi']['log']
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with prefix('workon {venv}'.format(venv=virtual_env)):
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run('uwsgi --socket {socket} -w rookeries:app --daemonize {log} --master'.format(socket=uwsgi_socket,
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log=uwsgi_log))
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def touch_file_to_restart(config=VAGRANT_CONFIG):
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"""
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Touch a specific file as part of the deployment. Usually used in conjuction to working with Passenger WSGI.
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:param config: The configuration used as part of the deployment.
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"""
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with cd(config['dest']):
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touch_file = config['touch_file']
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run('touch {file}'.format(file=touch_file))
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