Web2py, nginx, installation on Raspberry Pi

[Encompass solutions]

Hi,
Currently I am getting a 502 Bad Gateway Error when trying to access my web2py server running on Raspberry Pi.
I first tried the setup with the script setup-web2py-nginx-ubuntu.sh as it's nearly identical to the instructoins found here.
http://web2py.com/books/default/chapter/29/13#Nginx
After doing the script I got the 502 Bad Gateway error.
I know I am on the right server as I can see the request in the logs.
I then went through the tutorial on the website I previously mentioned and still got the error.
There were a few differences in the script.  For example web2py.ini verses web2py.xml (which is informationally the same.)

Any ideas on how to diagnose this and find the correct solution?

[Paolo Valleri]

The script you mentioned is based on upstart but on the raspberry-pi the init script are handled by sysvinit.

So that, I'd say that uwsgi is not running? 

Try to run it manually:

sudo uwsgi --master --die-on-term --emperor /etc/uwsgi --logto /var/log/uwsgi/uwsgi.log

Paolo

[Jason (spot) Brower]

Yeah. Looks like that was it! How do I make this change permanent?

--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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[Art Aquino]

Run this script:
scripts/setup-web2py-nginx-uwsgi-ubuntu.sh

It works on the pi. I did it yesterday and its all working.

[Massimo Di Pierro]

I am having a similar problem too. When I run on Ubuntu 14.04 everything works as intended. When I run on Ubuntu 14.04.1 LTS I get "Internal server error" I only get the error with uwsgi-emperor, not if I run uwsgi manually. Same command line manual and in the emperor configuration.

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[Jim S]

Ubuntu 14.04.1 / nginx / uwsgi is working for me without problems.  I used the script referenced in the book to install it and it worked fine.  I don't recall doing anything special.

-Jim

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[Massimo Di Pierro]

I used the same script on two different machines. I get

Ubuntu 14.04.1 LTS (from Digital Ocean Droplet) works fine

Ubuntu 14.04.1 LTS (from AWS Image) "internal server error"

In both cases these were fresh installations and the only code that run was setup-web2py-nginx-uwsgi-ubuntu.sh

[Jason Brower]

As crazy as it sounds, I did run that script.  It was a fresh install from a NOOBS image.  There has got to be some different.  Just don't know what it is.

BR,

Jason Brower

On Mon, Aug 25, 2014 at 1:20 AM, Art Aquino <art...@gmail.com> wrote:

Run this script: scripts/setup-web2py-nginx-uwsgi-ubuntu.sh It works on the pi. I did it yesterday and its all working.

[Paolo Valleri]

For rpi I see few alternatives:

- switch to upstart (mind that would be a big change for your operating system)

- create your own uwsgi script in /etc/init.d/ (google for it)

- place the command line a posted before in /etc/rc.local (mind to add an & at the end)

- uninstall the uwsgi installed by pip and install the one from the raspbian repository (it comes with the /etc/init.d/... script). In this case, I suggest to install uwsgi-emperor and uwsgi-plugin-python using apt-get, add the line 'plugin=python' in web2py.ini and place that file in /etc/uwsgi-emperor/vassals. 

 Paolo

[Jason (spot) Brower]

Thanks. I will probably try with the repos version and submit a pull request with a script for the web2py source. Also making a tool to publish to Qt cloud services. Perhaps we could add it to admin.

[Ben Lawrence]

Hi

Did you finally manage to upload the modified script for raspberry pi ?

[Ben Lawrence]

Never mind. I can just use

http://purschel.eu/python/web2py-on-raspberry-pi-raspbian/

login as pi user (any user, not root) and enter following commands:

sudo apt-get install python-web2py
mkdir web2py
cd web2py
openssl genrsa -out ca.key 1024
openssl req -new -key ca.key -out ca.csr
openssl x509 -req -days 365 -in ca.csr -signkey ca.key -out ca.crt
web2py -a 'your_password' -i IP.IP.IP.IP -p 8000 -c ca.crt -k ca.key

where IP.IP.IP.IP is IP address of Raspberry network interface

[Massimo Di Pierro]

replace IP.IP.IP.IP with 0.0.0.0

[Ben Lawrence]

Marcelo has a beta script at

https://github.com/motasmarcelo/setup-web2py-nginx-uwsgi-debian8.git

On Wednesday, May 25, 2016 at 3:45:23 PM UTC-7, Ben Lawrence wrote: