def main(config_path):
app = Flask(__name__)
@app.route('/')
@app.route('/<path:path>')
def root(path = ''):
response = make_response(f"You tried to access a site, but the server is not ready yet. Try again later.")
response.status_code = 503
return response
config = read_json(config_path)
app.run(**config.get('host', {}))
#!/usr/bin/env python3
import sys
from server.server import create_app
from server.persistence.helpers import read_json
if __name__ == "__main__":
config = read_json(sys.argv[1])
bottle_path = sys.argv[2]
create_app(config, bottle_path).run(**config.get('host', {'debug': True}))
def main(config_path):
back_end_path = os.path.realpath(
os.path.join(os.path.realpath(__file__), '..'))
# Because on Windows machines python is usually installed as 'python'
# but UNIX rather uses 'python3' and 'python' refers to py2
if os.name == 'posix':
python = 'python3'
else:
python = 'python'
restart = True
while restart:
restart = False
config = read_json(config_path)
host_config = config.get('host', {})
hostname, port = host_config.get('host',
'localhost'), host_config.get('port')
if port and is_port_in_use(hostname, port):
print(f' >>> Port {hostname}:{port} already in use! Aborting!')
break
# Run the provisional server while we upgrade the production server.
provisional_server = os.path.realpath(
os.path.join(os.path.realpath(__file__), '..',
'provisional-server.py'))
prov_server_proc = subprocess.Popen(
[python, provisional_server,
os.path.realpath(config_path)])
try:
# Upgrade the server.
print(' >>> Upgrading server')
upgrade_script = os.path.realpath(
os.path.join(os.path.realpath(__file__), '..', 'upgrade.py'))
run_and_monitor([python, upgrade_script],
log_file_prefix='upgrade')
finally:
# Stop the provisional server, even if upgrading failed for some reason.
prov_server_proc.terminate()
try:
prov_server_proc.wait(timeout=10)
except subprocess.TimeoutExpired:
prov_server_proc.kill()
# Clear message-in-a-bottle file.
bottle_path = 'logs/bottle.log'
write_json({}, bottle_path)
# Start the server. Give it a file so it can pass us a final message if it wants to.
print(' >>> Starting server')
try:
run_and_monitor([
python,
os.path.join(back_end_path, 'start-server.py'),
os.path.realpath(config_path), bottle_path
])
except subprocess.CalledProcessError:
# Ignore nonzero exit codes.
pass
# Read message in the bottle, if any.
message = read_json(bottle_path)
if message.get('action') == 'restart':
restart = True
print(' >>> Restart requested')
else:
print(' >>> Goodbye!')