我正在尝试运行以下代码(借鉴于:https://github.com/bokeh/bokeh/blob/0.12.14/examples/howto/server_embed/flask_gunicorn_embed.py)。在Ubuntu 16但我似乎无法让它工作。在ssh中,我输入gunicorn - 4 flask_gunicorn_embed:app
并导航到以下各项:
127.0.0.1:8000
localhost:8000
"myhostname":8000
但无济于事。日志显示Listening at : http://127.0.0.1:8000
。有人可以指导我如何让它运作吗?
from flask import Flask, render_template
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from bokeh.application import Application
from bokeh.application.handlers import FunctionHandler
from bokeh.embed import server_document
from bokeh.layouts import column
from bokeh.models import ColumnDataSource, Slider
from bokeh.plotting import figure
from bokeh.server.server import BaseServer
from bokeh.server.tornado import BokehTornado
from bokeh.server.util import bind_sockets
from bokeh.themes import Theme
if __name__ == '__main__':
print('This script is intended to be run with gunicorn. e.g.')
print()
print(' gunicorn -w 4 flask_gunicorn_embed:app')
print()
print('will start the app on four processes')
import sys
sys.exit()
from bokeh.sampledata.sea_surface_temperature import sea_surface_temperature
app = Flask(__name__)
def modify_doc(doc):
df = sea_surface_temperature.copy()
source = ColumnDataSource(data=df)
plot = figure(x_axis_type='datetime', y_range=(0, 25), y_axis_label='Temperature (Celsius)',
title="Sea Surface Temperature at 43.18, -70.43")
plot.line('time', 'temperature', source=source)
def callback(attr, old, new):
if new == 0:
data = df
else:
data = df.rolling('{0}D'.format(new)).mean()
source.data = ColumnDataSource(data=data).data
slider = Slider(start=0, end=30, value=0, step=1, title="Smoothing by N Days")
slider.on_change('value', callback)
doc.add_root(column(slider, plot))
doc.theme = Theme(filename="theme.yaml")
# can't use shortcuts here, since we are passing to low level BokehTornado
bkapp = Application(FunctionHandler(modify_doc))
bokeh_tornado = BokehTornado({'/bkapp': bkapp}, extra_websocket_origins=["localhost:8000"])
bokeh_http = HTTPServer(bokeh_tornado)
# This is so that if this app is run using something like "gunicorn -w 4" then
# each process will listen on its own port
sockets, port = bind_sockets("localhost", 0)
bokeh_http.add_sockets(sockets)
@app.route('/', methods=['GET'])
def bkapp_page():
script = server_document('http://localhost:%d/bkapp' % port)
return render_template("embed.html", script=script, template="Flask")
def bk_worker():
io_loop = IOLoop.current()
server = BaseServer(io_loop, bokeh_tornado, bokeh_http)
server.start()
server.io_loop.start()
from threading import Thread
Thread(target=bk_worker).start()
答案 0 :(得分:0)
尝试明确指定回送IP:
bokeh_tornado = BokehTornado({'/bkapp': bkapp}, extra_websocket_origins=["127.0.0.1:8000"])
由于这是一个列表,因此我们也可以列出多个起源来涵盖其他情况:
bokeh_tornado = BokehTornado(
{'/bkapp': bkapp},
extra_websocket_origins=[
"localhost:8000",
"127.0.0.1:8000",
"127.0.0.1:80",
"127.0.0.1:443"]
)
这是我必须对示例进行的第一个更改,才能使其在计算机上运行。我以flask-bokeh-dashboard的身份分享了这件事和其他东西。