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Multiple aiohttp () applications work in one process?

Is it possible to run two objects aiohttp.web.Application()in the same process, for example. on different ports?

I see a bunch of aiohttp code examples, for example:

from aiohttp import web
app = web.Application()
app.router.add_get('/foo', foo_view, name='foo')
web.run_app(app, host='0.0.0.0', port=10000)

I am wondering if there is any equivalent when several web.Applications()can be configured to run at the same time. Sort of:

from aiohttp import web
app1 = web.Application()
app1.router.add_get('/foo', foo_view, name='foo')
app2 = web.Application()
app2.router.add_get('/bar', bar_view, name='bar')
# This is the wishful thinking code:
web.configure_app(app1, host='0.0.0.0', port=10000)
web.configure_app(app2, host='0.0.0.0', port=10001)
web.run_apps()

My use case is that I have an existing python web infrastructure that does such things, and I am creating a prototype similar in python 3.6 with aiohttp.

, python , . nginx (. http://aiohttp.readthedocs.io/en/stable/deployment.html); , . - aiohttp asyncio, python, .

+6
2

, - run_app.

. , run_app, AppWrapper. MultiApp , .

import asyncio
from aiohttp import web


class AppWrapper:

    def __init__(self, aioapp, port, loop):
        self.port = port
        self.aioapp = aioapp
        self.loop = loop
        self.uris = []
        self.servers = []

    def initialize(self):
        self.loop.run_until_complete(self.aioapp.startup())
        handler = self.aioapp.make_handler(loop=self.loop)

        server_creations, self.uris = web._make_server_creators(
            handler, loop=self.loop, ssl_context=None,
            host=None, port=self.port, path=None, sock=None,
            backlog=128)

        self.servers = self.loop.run_until_complete(
            asyncio.gather(*server_creations, loop=self.loop)
        )

    def shutdown(self):
        server_closures = []
        for srv in self.servers:
            srv.close()
            server_closures.append(srv.wait_closed())
        self.loop.run_until_complete(
            asyncio.gather(*server_closures, loop=self.loop))

        self.loop.run_until_complete(self.aioapp.shutdown())

    def cleanup(self):
         self.loop.run_until_complete(self.aioapp.cleanup())

    def show_info(self):
        print("======== Running on {} ========\n".format(', '.join(self.uris)))


class MultiApp:    

    def __init__(self, loop=None):
        self._apps = []
        self.user_supplied_loop = loop is not None
        if loop is None:
            self.loop = asyncio.get_event_loop()
        else:
            self.loop = loop

    def configure_app(self, app, port):
        app._set_loop(self.loop)
        self._apps.append(
            AppWrapper(app, port, self.loop)
        )

    def run_all(self):
        try:
            for app in self._apps:
                app.initialize()
            try:
                for app in self._apps:
                    app.show_info()
                print("(Press CTRL+C to quit)")
                self.loop.run_forever()
            except KeyboardInterrupt:  # pragma: no cover
                pass
            finally:
                for app in self._apps:
                    app.shutdown()
        finally:
            for app in self._apps:
                app.cleanup()

        if not self.user_supplied_loop:
            self.loop.close()

: aiohttp, .

:

from aiohttp import web

async def handle1(request):
    return web.Response(text='SERVER 1')


async def handle2(request):
    return web.Response(text='SERVER 2')

app1 = web.Application()
app1.router.add_get('/', handle1)

app2 = web.Application()
app2.router.add_get('/', handle2)

ma = MultiApp()
ma.configure_app(app1, port=8081)
ma.configure_app(app2, port=8071)
ma.run_all()

, , . - . . , "" , / .

+5

, :

test.py:

from aiohttp import web
import asyncio
import sys

@asyncio.coroutine
def status1(request):
    return web.json_response('App1 OK')

@asyncio.coroutine
def status2(request):
    return web.json_response('App2 OK')

def start():
    try:
        loop = asyncio.get_event_loop()

        # App1
        app1 = web.Application()
        app1.router.add_get('/status', status1)
        handler1 = app1.make_handler()
        coroutine1 = loop.create_server(handler1, '0.0.0.0', 8081)
        server1 = loop.run_until_complete(coroutine1)
        address1, port1 = server1.sockets[0].getsockname()
        print('App1 started on http://{}:{}'.format(address1, port1))

        # App2
        app2 = web.Application()
        app2.router.add_get('/status', status2)
        handler2 = app2.make_handler()
        coroutine2 = loop.create_server(handler2, '0.0.0.0', 8082)
        server2 = loop.run_until_complete(coroutine2)
        address2, port2 = server2.sockets[0].getsockname()
        print('App2 started on http://{}:{}'.format(address2, port2))

        try:
            loop.run_forever()
        except KeyboardInterrupt:
            pass
        finally:
            server1.close()
            loop.run_until_complete(app1.shutdown())
            loop.run_until_complete(handler1.shutdown(60.0))
            loop.run_until_complete(handler1.finish_connections(1.0))
            loop.run_until_complete(app1.cleanup())

            server2.close()
            loop.run_until_complete(app2.shutdown())
            loop.run_until_complete(handler2.shutdown(60.0))
            loop.run_until_complete(handler2.finish_connections(1.0))
            loop.run_until_complete(app2.cleanup())

        loop.close()
    except Exception as e:
        sys.stderr.write('Error: ' + format(str(e)) + "\n")
        sys.exit(1)

if __name__ == '__main__':
    start()

.

python test.py


curl -X GET http://localhost:8081/status
curl -X GET http://localhost:8082/status


"App1 OK"
"App2 OK"
+1

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