Thanks Graham.
I did edit the FlaskApp.config file:
<VirtualHost *:80>
ServerName <public ip>.us-west-2.compute.amazonaws.com
ServerAdmin ubuntu@ec2-<public ip>
.us-west-2.compute.amazonaws.com
WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
<Directory /var/www/FlaskApp/FlaskApp/>
Order allow,deny
Allow from all
</Directory>
Alias /static /var/www/FlaskApp/FlaskApp/static
<Directory /var/www/FlaskApp/FlaskApp/static/>
Order allow,deny
Allow from all
</Directory>
*WSGIDaemonProcess FlaskApp
python-path=/home/ubuntu/anaconda3/envs/test1.0/lib/python3.6/site-packages*
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
And then applied following new step in the process:
## get apache2
sudo apt-get install apache2
sudo apt-get install apache2-dev
## get mod_wsgi
#sudo apt-get install libapache2-mod-wsgi
pip install mod_wsgi
## force load Anaconda's shared library
mod_wsgi-express module-config
## enable mod_wsgi
sudo a2enmod wsgi
## Install and register the mod_wsgi module with Apache
<--------------------------
sudo `which mod_wsgi-express` install-module
## get git
sudo apt-get install git
## create apache config
touch /etc/apache2/sites-available/FlaskApp.conf
## disable default config
sudo a2dissite 000-default
## provide new config
sudo a2ensite FlaskApp.conf
## start/restart apache
sudo service apache2 restart
The same error occurs in the log:
Traceback (most recent call last):
File "/var/www/FlaskApp/flaskapp.wsgi", line 7, in <module>
from FlaskApp import app as application
File "/var/www/FlaskApp/FlaskApp/__init__.py", line 1, in <module>
from flask import Flask
ImportError: No module named flask
Thoughts?
Best,
-Brian
On Monday, May 8, 2017 at 2:21:12 PM UTC-6, Graham Dumpleton wrote:
>
> Did you read:
>
>
> http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html
>
> as I linked to.
>
> There is no evidence that you have added anything for a Python virtual
> environment if you are using one.
>
> Graham
>
> On 9 May 2017, at 4:25 AM, Brian <[email protected] <javascript:>>
> wrote:
>
> The conda environment must not be set correctly because it can't find
> flask:
>
> [Mon May 08 16:39:11.002873 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] Traceback (most recent call last):
>
>
>
> [Mon May 08 16:39:11.002923 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] File "/var/www/FlaskApp/flaskapp.wsgi",
> line 7, in <module>
>
> [Mon May 08 16:39:11.002989 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] from FlaskApp import app as application
>
> [Mon May 08 16:39:11.003012 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] File
> "/var/www/FlaskApp/FlaskApp/__init__.py", line 1, in <module>
>
> [Mon May 08 16:39:11.003044 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] from flask import Flask
>
> [Mon May 08 16:39:11.003081 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] ImportError: No module named flask
>
>
> On Monday, May 8, 2017 at 11:45:31 AM UTC-6, Vanessa Marques wrote:
>>
>> Brian, check out /var/log/apache2/error.log to see the errors and let us
>> know what is in there.
>>
>> I'm having the exact same challenge as you (trying to configure flask +
>> apache + anaconda + mod_wsgi on an ubuntu EC2 instance).
>>
>> On Monday, May 8, 2017 at 1:59:16 PM UTC-3, Brian wrote:
>>>
>>> Thank you Graham.
>>>
>>> Any recs on testing and/or debugging a 500 internal server error when I
>>> try to hit the site? I'm assuming that it's in the configuration so I'm
>>> going to add full details of the process and config files below.
>>>
>>> All commands ran:
>>>
>>> ## build conda environment
>>>
>>> conda create --name test1.0 python==3.6.1 pandas jupyter requests flask
>>>
>>>
>>> ## activate conda environment
>>>
>>> source activate test1.0
>>>
>>>
>>> ## get apache2
>>>
>>> sudo apt-get install apache2
>>>
>>> sudo apt-get install apache2-dev
>>>
>>>
>>> ## get mod_wsgi
>>>
>>> #sudo apt-get install libapache2-mod-wsgi
>>>
>>> pip install mod_wsgi
>>>
>>>
>>> ## force load Anaconda's shared library
>>>
>>> mod_wsgi-express module-config
>>>
>>>
>>> ## enable mod_wsgi
>>>
>>> sudo a2enmod wsgi
>>>
>>>
>>> ## get git
>>>
>>> sudo apt-get install git
>>>
>>>
>>> ## create config for apache to know about wsgi and flask app
>>>
>>> touch /etc/apache2/sites-available/FlaskApp.conf
>>>
>>>
>>> ## disable default config
>>>
>>> sudo a2dissite 000-default
>>>
>>>
>>> ## provide new config
>>>
>>> sudo a2ensite FlaskApp.conf
>>>
>>>
>>> ## start/restart apache
>>>
>>> sudo service apache2 restart
>>>
>>> Contents of FlaskApp.conf:
>>>
>>> <VirtualHost *:80>
>>>
>>> ServerName <IPv4 PUBLIC IP>
>>>
>>> ServerAdmin ubuntu@<IPv4 PUBLIC IP>.
>>> us-west-2.compute.amazonaws.com
>>>
>>> WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
>>>
>>> <Directory /var/www/FlaskApp/FlaskApp/>
>>>
>>> Order allow,deny
>>>
>>> Allow from all
>>>
>>> </Directory>
>>>
>>> Alias /static /var/www/FlaskApp/FlaskApp/static
>>>
>>> <Directory /var/www/FlaskApp/FlaskApp/static/>
>>>
>>> Order allow,deny
>>>
>>> Allow from all
>>>
>>> </Directory>
>>>
>>> ErrorLog ${APACHE_LOG_DIR}/error.log
>>>
>>> LogLevel warn
>>>
>>> CustomLog ${APACHE_LOG_DIR}/access.log combined
>>>
>>> </VirtualHost>
>>>
>>> Location of flask app and .wsgi file*.*
>>>
>>> (test1.0) ubuntu:/var/www$ tree
>>>
>>> *.*
>>>
>>> ├── *FlaskApp*
>>>
>>> ├── *FlaskApp*
>>>
>>> │ ├── __init__.py
>>>
>>> │ ├── *static*
>>>
>>> │ └── *templates*
>>>
>>> └── flaskapp.wsgi
>>>
>>> Contents of flaskapp.wsgi:
>>>
>>> #!/usr/bin/python
>>>
>>> import sys
>>>
>>> import logging
>>>
>>> logging.basicConfig(stream=sys.stderr)
>>>
>>> sys.path.insert(0,"/var/www/FlaskApp/")
>>>
>>>
>>> from FlaskApp import app as application
>>>
>>> application.secret_key = '<secret>'
>>>
>>> Contents of __init__.py:
>>>
>>> from flask import Flask
>>>
>>> app = Flask(__name__)
>>>
>>> @app.route("/")
>>>
>>> def hello():
>>>
>>> return "Hello World (flask via conda env)!"
>>>
>>> if __name__ == "__main__":
>>>
>>> app.run()
>>>
>>> When visiting the site, I get a 500 internal server error. I likely
>>> messed up something with the config. Any help is greatly appreciated.
>>>
>>> Best,
>>> -Brian
>>>
>>> On Sunday, May 7, 2017 at 6:32:18 PM UTC-6, Graham Dumpleton wrote:
>>>>
>>>> In the first instance you should ensure things work with a WSGI hello
>>>> world, no Flask framework. This ensures setup with Anaconda Python is
>>>> okay,
>>>> which sometimes doesn't always work because of stupid things Anaconda
>>>> Python does which breaks the ability to use it in embedded systems.
>>>>
>>>> As to deploying Flask, the Flask documentation has details:
>>>>
>>>> * http://flask.pocoo.org/docs/0.12/deploying/mod_wsgi/
>>>>
>>>> Also ensure you read:
>>>>
>>>> *
>>>> http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html
>>>>
>>>> so you are setting up any Python virtual environment correctly as
>>>> guides for frameworks often don't suggest the preferred method, or simply
>>>> don't address it.
>>>>
>>>> Graham
>>>>
>>>> On 7 May 2017, at 8:00 AM, Brian Lehman <[email protected]> wrote:
>>>>
>>>> Thanks Graham. So everything is installed. Being brand new to this
>>>> world, I'm looking for a tutorial to (and please forgive me as I'm likely
>>>> using the wrong terminology) see how to tell Apache to use mod_wsgi to run
>>>> my flask app. I'm guessing that I need to change some config files in
>>>> Apache to use my conda environment and then write some .wsgi file?
>>>> However,
>>>> I'm seeing quite a few different threads on this subject. Any advice is
>>>> greatly appreciated.
>>>>
>>>> ## get apache2
>>>> sudo apt-get install apache2
>>>> sudo apt-get install apache2-dev
>>>>
>>>> ## get mod_wsgi
>>>> pip install mod_wsgi
>>>>
>>>> #force load Anaconda's shared library
>>>> mod_wsgi-express module-config
>>>>
>>>> ## start/restart apache
>>>> sudo service apache2 restart
>>>>
>>>> On Thursday, May 4, 2017 at 4:22:08 PM UTC-6, Graham Dumpleton wrote:
>>>>>
>>>>> As per instructions in:
>>>>>
>>>>> https://pypi.python.org/pypi/mod_wsgi
>>>>>
>>>>> You need to ensure you have the 'dev' packages for Apache installed.
>>>>>
>>>>> If you are running Debian or Ubuntu Linux with Apache 2.4 system
>>>>> packages, regardless of which Apache MPM is being used, you would need
>>>>> both:
>>>>>
>>>>> apache2
>>>>> apache2-dev
>>>>>
>>>>> Note that if using Anaconda Python, after having installed mod_wsgi
>>>>> with pip, ensure you run:
>>>>>
>>>>> mod_wsgi-express module-config
>>>>>
>>>>> to show the configuration you need to include in the system Apache if
>>>>> you intend manually configuring it for mod_wsgi, instead of using
>>>>> 'mod_wsgi-express start-server'.
>>>>>
>>>>> This is necessary as Anaconda Python can require extra configuration
>>>>> directives to force load its shared library. That command should output
>>>>> the
>>>>> appropriate lines, although just check that the generated line for
>>>>> LoadFile
>>>>> directive actually points at a valid path. Seen one report where for
>>>>> Anaconda Python the path it generated was wrong and it had to be changed.
>>>>>
>>>>> Graham
>>>>>
>>>>> On 5 May 2017, at 2:54 AM, Brian Lehman <[email protected]> wrote:
>>>>>
>>>>> Good day. When I try to pip install mod_wsgi inside of an anaconda env
>>>>> called test1.0 on an aws ec2 instance w/ ubuntu, I get the folowing
>>>>> error.
>>>>> Any suggestions?
>>>>>
>>>>> (test1.0) ubuntu$ python --version
>>>>>
>>>>> Python 3.6.1 :: Continuum Analytics, Inc.
>>>>>
>>>>> (test1.0) ubuntu$
>>>>>
>>>>> (test1.0) ubuntu$
>>>>>
>>>>> (test1.0) ubuntu$ pip install mod_wsgi
>>>>>
>>>>> Collecting mod_wsgi
>>>>>
>>>>> Using cached mod_wsgi-4.5.15.tar.gz
>>>>>
>>>>> Complete output from command python setup.py egg_info:
>>>>>
>>>>> Traceback (most recent call last):
>>>>>
>>>>> File "<string>", line 1, in <module>
>>>>>
>>>>> File "/tmp/pip-build-80walwu3/mod-wsgi/setup.py", line 164, in
>>>>> <module>
>>>>>
>>>>> 'missing Apache httpd server packages.' % APXS)
>>>>>
>>>>> RuntimeError: The 'apxs' command appears not to be installed or is
>>>>> not executable. Please check the list of prerequisites in the
>>>>> documentation
>>>>> for this package and install any missing Apache httpd server packages.
>>>>>
>>>>>
>>>>> ----------------------------------------
>>>>>
>>>>> Command "python setup.py egg_info" failed with error code 1 in
>>>>> /tmp/pip-build-80walwu3/mod-wsgi/
>>>>>
>>>>> --
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>>>>>
>>>>>
>>>>>
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>>>>
>>>>
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