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fabfile.py
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fabfile.py
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import time
from os import path
from os.path import expanduser
from fabric.api import env, put, sudo, task
from fabric.context_managers import prefix
from fabric.contrib.project import rsync_project
from fabric.operations import run
with open(expanduser('~') + '/ansible-playbooks/env/bvspca.py', 'r') as config:
exec(config.read())
EXCLUDES = [
'/.*',
'**/*.pyc',
'**/__pycache__',
'**/.sass-cache',
]
GROUP_NO_PERMS = [
'config',
'requirements',
'bvspca',
'manage.py',
]
GROUP_READ_PERMS = [
'staticfiles',
'media',
]
GROUP_RW_PERMS = [
]
DJANGO_SETTINGS_MODULE = 'config.settings.production'
@task
def dry_run():
deploy_full(dry_run='yes')
@task
def deploy_code():
deploy_full(venv='no')
@task
def deploy_full(dry_run='no', venv='yes'):
upload_files(dry_run)
run('mkdir -p backups')
run('mkdir -p staticfiles')
run('mkdir -p logs')
if dry_run == 'no':
set_permissions()
if venv == 'yes':
rebuild_venv()
collect_static()
_stop_gunicorn()
migrate()
_start_gunicorn()
_reload_nginx()
@task
def collect_static():
with prefix('source ' + ACTIVATE_SCRIPT):
run(PYTHON_EXECUTABLE + ' manage.py collectstatic --no-input')
@task
def migrate():
with prefix('source ' + ACTIVATE_SCRIPT):
run(PYTHON_EXECUTABLE + ' manage.py migrate')
@task
def set_permissions():
for file in GROUP_NO_PERMS:
remote_dir = env.remote_dir + '/' + file
run(
'find ' + remote_dir + r' -type d -exec chmod 700 {} \; && find ' + remote_dir + r' -type f -exec chmod 600 {} \;')
for file in GROUP_READ_PERMS:
remote_dir = env.remote_dir + '/' + file
run(
'find ' + remote_dir + r' -type d -exec chmod 750 {} \; && find ' + remote_dir + r' -type f -exec chmod 640 {} \;')
for file in GROUP_RW_PERMS:
remote_dir = env.remote_dir + '/' + file
run(
'find ' + remote_dir + r' -type d -exec chmod 770 {} \; && find ' + remote_dir + r' -type f -exec chmod 660 {} \;')
@task
def upload_files(dry_run='no', media=False):
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/bvspca',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '',
exclude=EXCLUDES)
if media:
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/media',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '')
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/config',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '')
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/requirements',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '')
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/manage.py',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '')
rsync_project(remote_dir=env.remote_dir,
local_dir=env.local_dir + '/.env.production',
default_opts='-thrvz',
delete=True,
extra_opts='--dry-run' if dry_run == 'yes' else '')
@task
def outdated_packages():
run(PIP_EXECUTABLE + ' list -o')
@task
def rebuild_venv():
if run('test -d %s' % VENV_DIR).succeeded:
run('rm -rf ' + VENV_DIR)
run('python3 -m venv ' + VENV_DIR)
run(PIP_EXECUTABLE + ' install --upgrade pip', shell=True)
run(PIP_EXECUTABLE + ' install -U setuptools', shell=True)
run(PIP_EXECUTABLE + ' install -r requirements/production.txt', shell=True)
_set_environment_variable('DJANGO_READ_DOT_ENV_FILE', 'True', ACTIVATE_SCRIPT)
_set_environment_variable('DJANGO_SETTINGS_MODULE', DJANGO_SETTINGS_MODULE, ACTIVATE_SCRIPT)
def _set_environment_variable(name, value, location):
command = 'export ' + name + '="' + value + '"'
run("echo '" + command + "' >> " + location)
@task
def load_live_db(dump_file):
"""
Load the provided Postgres SQL file into the project db
"""
run('mkdir ~/tmp', warn_only=True, quiet=True)
put(dump_file, 'tmp/')
basename = path.basename(dump_file)
remote_dump_file = 'tmp/' + basename
_stop_gunicorn()
statement = "DROP DATABASE " + DB_NAME + ";"
_run_psql_statement(statement, warn_only=True)
statement = "CREATE DATABASE " + DB_NAME + " LC_COLLATE='en_CA.UTF-8' LC_CTYPE='en_CA.UTF-8' TEMPLATE='template0';"
_run_psql_statement(statement)
statement = "GRANT ALL ON DATABASE " + DB_NAME + " TO " + PROJECT_USER + ";"
_run_psql_statement(statement)
_import_psql_data(remote_dump_file)
_start_gunicorn()
def _run_psql_statement(statement, **kvargs):
run('psql -U postgres -d postgres -c "' + statement +'"', **kvargs)
def _import_psql_data(sql_file, **kvargs):
run('psql -U postgres -d postgres -d ' + DB_NAME + ' -f ' + sql_file, **kvargs)
@task
def backup_db():
"""
Backup the project database
"""
backup_name = DB_NAME + time.strftime("-%Y%m%d-%H%M%S.sql")
run('mkdir ~/backups', warn_only=True, quiet=True)
run('pg_dump --inserts --create -U postgres ' + DB_NAME + ' > ~/backups/' + backup_name)
@task
def restart_app():
_stop_gunicorn()
_start_gunicorn()
_reload_nginx()
def _stop_gunicorn():
sudo('sudo supervisorctl stop ' + PROJECT_USER)
def _start_gunicorn():
sudo('sudo supervisorctl update ' + PROJECT_USER)
sudo('sudo supervisorctl start ' + PROJECT_USER)
def _reload_nginx():
sudo('sudo service nginx reload')
if __name__ == '__main__':
dry_run()