The application works fine on my local linux server but I have trouble of running it on Azure.
I checked the Files folder and all python libraries are installed correctly under /antenv2.7/lib/python2.7/site-packages.
Here is my pip requirements file:
bs4==0.0.1 Flask==1.0.2 Flask-Cors==3.0.7 Keras==2.2.0 nltk==3.2.5 numpy==1.14.5 pandas==0.23.3 scikit-learn==0.19.1 scipy==1.1.0 tensorflow==1.9.0 protobuf==3.9.1
But when gunicorn starts, it generates this error. I don’t know why protobuf can’t be imported while other libraries like Keras can be imported without issue.
Here is the full stacktrace. Thank you!
2019-08-29T21:09:37.697162031Z 2019-08-29T21:09:37.697200631Z _____ 2019-08-29T21:09:37.697207831Z / _ __________ _________ ____ 2019-08-29T21:09:37.697212431Z / /_ ___ / | _ __ _/ __ 2019-08-29T21:09:37.697216931Z / | / /| | /| | / ___/ 2019-08-29T21:09:37.697221431Z ____|__ /_____ ____/ |__| ___ > 2019-08-29T21:09:37.697226031Z / / / 2019-08-29T21:09:37.697230631Z 2019-08-29T21:09:37.697234631Z A P P S E R V I C E O N L I N U X 2019-08-29T21:09:37.697238731Z 2019-08-29T21:09:37.697242831Z Documentation: http://aka.ms/webapp-linux 2019-08-29T21:09:37.697247031Z 2019-08-29T21:09:38.233956948Z Starting OpenBSD Secure Shell server: sshd. 2019-08-29T21:09:38.323527534Z Site's appCommandLine: startup.txt 2019-08-29T21:09:38.329445366Z Checking of startup.txt is a file 2019-08-29T21:09:38.331698079Z App command line is a file on disk 2019-08-29T21:09:38.342990940Z startup.txt file exists on disk, reading its contents to run as startup arguments 2019-08-29T21:09:38.343698744Z Contents of startupScript: gunicorn --bind=0.0.0.0 --timeout 600 server:app 2019-08-29T21:09:38.344176546Z Launching oryx with: -appPath /home/site/wwwroot -output /opt/startup/startup.sh -virtualEnvName antenv2.7 -defaultApp /opt/defaultsite -bindPort 8000 -userStartupCommand 'gunicorn --bind=0.0.0.0 --timeout 600 server:app' 2019-08-29T21:09:38.469155825Z Oryx Version : 0.2.20190518.2, Commit: 5e1ddd1855bcb53ce686e2124ed6e9603cb0587a 2019-08-29T21:09:38.469591228Z 2019-08-29T21:09:39.415029965Z Writing output script to '/opt/startup/startup.sh' 2019-08-29T21:09:39.467672451Z Using 'oryx-manifest.toml'. 2019-08-29T21:09:39.472390477Z Checking if virtual environment was compressed... 2019-08-29T21:09:39.729331673Z Using packages from virtual environment 'antenv2.7' located at '/home/site/wwwroot/antenv2.7'. 2019-08-29T21:09:43.204792157Z [2019-08-29 21:09:43 +0000] [35] [INFO] Starting gunicorn 19.9.0 2019-08-29T21:09:43.206124364Z [2019-08-29 21:09:43 +0000] [35] [INFO] Listening at: http://0.0.0.0:8000 (35) 2019-08-29T21:09:43.206716767Z [2019-08-29 21:09:43 +0000] [35] [INFO] Using worker: sync 2019-08-29T21:09:43.224584364Z [2019-08-29 21:09:43 +0000] [39] [INFO] Booting worker with pid: 39 2019-08-29T21:10:08.320887834Z Using TensorFlow backend. 2019-08-29T21:10:09.701427737Z [2019-08-29 21:10:09 +0000] [39] [ERROR] Exception in worker process 2019-08-29T21:10:09.701474537Z Traceback (most recent call last): 2019-08-29T21:10:09.701479937Z File "/usr/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 583, in spawn_worker 2019-08-29T21:10:09.701484237Z worker.init_process() 2019-08-29T21:10:09.701487937Z File "/usr/local/lib/python2.7/site-packages/gunicorn/workers/base.py", line 129, in init_process 2019-08-29T21:10:09.701498537Z self.load_wsgi() 2019-08-29T21:10:09.701502237Z File "/usr/local/lib/python2.7/site-packages/gunicorn/workers/base.py", line 138, in load_wsgi 2019-08-29T21:10:09.701505937Z self.wsgi = self.app.wsgi() 2019-08-29T21:10:09.701509337Z File "/usr/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi 2019-08-29T21:10:09.701512937Z self.callable = self.load() 2019-08-29T21:10:09.701516437Z File "/usr/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load 2019-08-29T21:10:09.701520037Z return self.load_wsgiapp() 2019-08-29T21:10:09.701523337Z File "/usr/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 41, in load_wsgiapp 2019-08-29T21:10:09.701527037Z return util.import_app(self.app_uri) 2019-08-29T21:10:09.701530537Z File "/usr/local/lib/python2.7/site-packages/gunicorn/util.py", line 350, in import_app 2019-08-29T21:10:09.701579737Z __import__(module) 2019-08-29T21:10:09.701612538Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/keras/__init__.py", line 3, in <module> 2019-08-29T21:10:09.701616338Z from . import utils 2019-08-29T21:10:09.701619738Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/keras/utils/__init__.py", line 6, in <module> 2019-08-29T21:10:09.701623538Z from . import conv_utils 2019-08-29T21:10:09.701626838Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/keras/utils/conv_utils.py", line 9, in <module> 2019-08-29T21:10:09.701630638Z from .. import backend as K 2019-08-29T21:10:09.701633938Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/keras/backend/__init__.py", line 87, in <module> 2019-08-29T21:10:09.701637638Z from .tensorflow_backend import * 2019-08-29T21:10:09.701647638Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/keras/backend/tensorflow_backend.py", line 5, in <module> 2019-08-29T21:10:09.701652338Z import tensorflow as tf 2019-08-29T21:10:09.701659738Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/tensorflow/__init__.py", line 22, in <module> 2019-08-29T21:10:09.701663538Z from tensorflow.python import pywrap_tensorflow # pylint: disable=unused-import 2019-08-29T21:10:09.701667138Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/tensorflow/python/__init__.py", line 52, in <module> 2019-08-29T21:10:09.701670938Z from tensorflow.core.framework.graph_pb2 import * 2019-08-29T21:10:09.701674438Z File "/home/site/wwwroot/antenv2.7/lib/python2.7/site-packages/tensorflow/core/framework/graph_pb2.py", line 6, in <module> 2019-08-29T21:10:09.701678038Z from google.protobuf import descriptor as _descriptor 2019-08-29T21:10:09.701681538Z ImportError: No module named google.protobuf 2019-08-29T21:10:09.714154906Z [2019-08-29 21:10:09 +0000] [39] [INFO] Worker exiting (pid: 39) 2019-08-29T21:10:10.020760372Z [2019-08-29 21:10:10 +0000] [35] [INFO] Shutting down: Master 2019-08-29T21:10:10.022103379Z [2019-08-29 21:10:10 +0000] [35] [INFO] Reason: Worker failed to boot.
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Answer
I have to add __init__.py under site-packages/google/ manually after the deployment is complete.
Azure App Services runs Debian linux. Maybe python runs a bit differently on this variety of linux. However my application runs on my Ubuntu vm properly without the need of doing this.
Azure App Service is trash. Pretty much.