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quay/endpoints/api/suconfig.py

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2019-11-12 16:09:47 +00:00
""" Superuser Config API. """
import logging
import os
import signal
import subprocess
from flask import abort
from app import app, config_provider
from auth.permissions import SuperUserPermission
from endpoints.api.suconfig_models_pre_oci import pre_oci_model as model
from endpoints.api import (ApiResource, nickname, resource, internal_only, show_if, verify_not_prod)
import features
logger = logging.getLogger(__name__)
def database_is_valid():
""" Returns whether the database, as configured, is valid. """
if app.config['TESTING']:
return False
return model.is_valid()
def database_has_users():
""" Returns whether the database has any users defined. """
return model.has_users()
@resource('/v1/superuser/registrystatus')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserRegistryStatus(ApiResource):
""" Resource for determining the status of the registry, such as if config exists,
if a database is configured, and if it has any defined users.
"""
@nickname('scRegistryStatus')
@verify_not_prod
def get(self):
""" Returns the status of the registry. """
# If we have SETUP_COMPLETE, then we're ready to go!
if app.config.get('SETUP_COMPLETE', False):
return {
'provider_id': config_provider.provider_id,
'status': 'ready'
}
return {
'status': 'setup-incomplete'
}
class _AlembicLogHandler(logging.Handler):
def __init__(self):
super(_AlembicLogHandler, self).__init__()
self.records = []
def emit(self, record):
self.records.append({
'level': record.levelname,
'message': record.getMessage()
})
# From: https://stackoverflow.com/a/44712205
def get_process_id(name):
"""Return process ids found by (partial) name or regex.
>>> get_process_id('kthreadd')
[2]
>>> get_process_id('watchdog')
[10, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, 61] # ymmv
>>> get_process_id('non-existent process')
[]
"""
child = subprocess.Popen(['pgrep', name], stdout=subprocess.PIPE, shell=False)
response = child.communicate()[0]
return [int(pid) for pid in response.split()]
@resource('/v1/superuser/shutdown')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserShutdown(ApiResource):
""" Resource for sending a shutdown signal to the container. """
@verify_not_prod
@nickname('scShutdownContainer')
def post(self):
""" Sends a signal to the phusion init system to shut down the container. """
# Note: This method is called to set the database configuration before super users exists,
# so we also allow it to be called if there is no valid registry configuration setup.
if app.config['TESTING'] or not database_has_users() or SuperUserPermission().can():
# Note: We skip if debugging locally.
if app.config.get('DEBUGGING') == True:
return {}
os.kill(get_process_id('my_init')[0], signal.SIGINT)
return {}
abort(403)