def cleanup():
releases = fetch('releases')
keep_releases = int(fetch('keep_releases'))
releases_path = fetch('releases_path')
if keep_releases < len(releases):
delete_releases = map(lambda release: os.path.join(releases_path, release), releases[0:-keep_releases])
run('rm -rf %(delete_releases)s' % dict(delete_releases=' '.join(delete_releases)))
def setup():
with settings(warn_only=True):
dirs = [fetch('deploy_to'), fetch('releases_path'), fetch('shared_path')]
dirs += map(lambda path: os.path.join(fetch('shared_path'), path), ['log', 'pids', 'system'])
result = run('mkdir -p %(dirs)s && chmod g+w %(dirs)s' % dict(dirs=' '.join(dirs)))
if result.failed:
error('failed to setup.')
if fetch('virtualenv') is not None:
invoke('setup_virtualenv')
def rollback():
previous_release = fetch('previous_release')
if previous_release is None:
error('no previous releases.')
run("""
rm -f %(current_path)s && ln -s %(previous_release)s %(current_path)s
""" % var('current_path', 'previous_release', 'latest_release'))
run("""
if [ `readlink %(current_path)s` != %(current_release)s ]; then rm -rf %(current_release)s; fi
""" % var('current_path', 'current_release'))
def rollback():
previous_release = fetch('previous_release')
if previous_release is None:
error('no previous releases.')
run("""
rm -f {current_path} && ln -s {previous_release} {current_path}
""".format(**var('current_path', 'previous_release', 'latest_release')))
run("""
if [ `readlink {current_path}` != {current_release} ]; then rm -rf {current_release}; fi
""".format(**var('current_path', 'current_release')))
def setup_pybundle():
with settings(warn_only=True):
requirement = 'packages.txt'
result = local("""
if test -f {requirement}; then pip install --requirement={requirement}; else pip freeze --local > {requirement}; fi &&
pip bundle --requirement={requirement} {application}.pybundle
""".format(**var('application', requirement=requirement)))
if result.failed:
error('failed to create pybundle.')
result = put('{application}.pybundle'.format(**var('application')), fetch('pybundle_path'))
if result.failed:
error('failed to upload pybundle.')
def finalize_update():
with settings(warn_only=True):
result = run("""
rm -rf %(latest_release)s/log %(latest_release)s/public/system %(latest_release)s/tmp/pids &&
mkdir -p %(latest_release)s/public &&
mkdir -p %(latest_release)s/tmp &&
ln -s %(shared_path)s/log %(latest_release)s/log &&
ln -s %(shared_path)s/system %(latest_release)s/public/system &&
ln -s %(shared_path)s/pids %(latest_release)s/tmp/pids
""" % var('latest_release', 'shared_path'))
if result.failed:
alert('failed to finalize update. try to delete temporal files.')
run('rm -rf %(latest_release)s; true' % var('latest_release'))
error('failed to finalize update.')
if fetch('group_writable'):
run('chmod -R g+w %(latest_release)s' % var('latest_release'))
def finalize_update():
with settings(warn_only=True):
result = run("""
rm -rf {latest_release}/log {latest_release}/public/system {latest_release}/tmp/pids &&
mkdir -p {latest_release}/public &&
mkdir -p {latest_release}/tmp &&
ln -s {shared_path}/log {latest_release}/log &&
ln -s {shared_path}/system {latest_release}/public/system &&
ln -s {shared_path}/pids {latest_release}/tmp/pids
""".format(**var('latest_release', 'shared_path')))
if result.failed:
alert('failed to finalize update. try to delete temporal files.')
run('rm -rf {latest_release}; true'.format(**var('latest_release')))
error('failed to finalize update.')
if fetch('group_writable'):
run('chmod -R g+w {latest_release}'.format(**var('latest_release')))
def fetch(key, default_val=None): import options return options.fetch(key, default_val)
def upload_pybundle():
with settings(warn_only=True):
result = put('%(application)s.pybundle' % var('application'), fetch('pybundle_path'))
if result.failed:
error('failed to upload pybundle.')
def var(*keys, **kwargs):
for key in keys:
kwargs[key] = fetch(key)
return kwargs
def update_code():
try:
fetch('strategy').deploy()
except Exception, e:
run('rm -rf %(latest_release)s; true' % var('latest_release'))
error('failed to update code. (%(reason)s)' % dict(reason=str(e)))
def update_code():
try:
fetch('strategy').deploy()
except Exception, e:
run('rm -rf {latest_release}; true'.format(**var('latest_release')))
error('failed to update code. ({reason})'.format(reason=str(e)))