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Animal Shelter Manager v3 (sheltermanager3)

This program is covered by the terms of the GNU General Public Licence v3. See the file LICENSE in this directory for details.

Dependencies

If you are using a Debian-based system (eg: Ubuntu), then the following will install all the software you need to build and run ASM. If you are using the sheltermanager3 deb package it already has dependencies set for these and will install them for you.

  • apt-get install make python3 python3-webpy python3-pil python3-mysqldb python3-psycopg2

Extra, non-mandatory packages:

  • apt-get install python3-memcache memcached (for multiprocess sessions)
  • apt-get install imagemagick (for scaling/compressing PDFs to save on storage)
  • apt-get install wkhtmltopdf (for creating PDFs from HTML document templates)
  • apt-get install python3-xhtml2pdf (pure Python lib for creating PDFs from HTML document templates)
  • apt-get install python3-reportlab (for creating mailing label PDFs)
  • apt-get install python3-requests (needed for HTTP comms to other publishing services)
  • apt-get install python3-boto3 (needed for Amazon S3 media storage)
  • pip/pip3 install stripe (for requesting payments via Stripe)

Packages necessary for building static checkers, installers and manuals:

  • apt-get install exuberant-ctags nodejs pychecker python3-sphinx python3-sphinx-rtd-theme texlive-latex-base texlive-latex-extra latexmk

If you're using Debian and want to do development, you can use "make deps" to install the needed dependencies.

Debian python3-webpy

The version of web.py currently packaged in Debian Buster (and possibly Ubuntu) as python3-webpy has a fault. It cannot serve static content and will only work if you deploy your application with mod_wsgi, uwsgi, etc.

You can fix it manually by editing /usr/lib/python3/dist-packages/web/httpserver.py and adding the new line self.directory = os.getcwd() at line 198 at the bottom of the init function, like this:

class StaticApp(SimpleHTTPRequestHandler):
    """WSGI application for serving static files."""
    def __init__(self, environ, start_response):
        self.headers = []
        self.environ = environ
        self.start_response = start_response
        self.directory = os.getcwd()

You do not need this fix if you are deploying your application to run with Apache as recommended, this only applies to running a standalone server via code.py from the command line.

Logging

ASM logs to the Unix syslog USER facility (/var/log/user.log for most installs) by default. This can be changed in the configuration.

Configuring ASM

If you used the debian package, edit the file /etc/asm3.conf

If you did not, copy scripts/asm3.conf.example to /etc/asm3.conf and then edit it.

Set the following values:

asm3_dbtype = (POSTGRESQL, MYSQL or SQLITE)
asm3_dbhost = (hostname of your server)
asm3_dbport = (port of your server if using tcp)
asm3_dbusername = 
asm3_dbpassword = 
asm3_dbname = (name of the database, can be file path if type is SQLITE)

If you are using MySQL or POSTGRESQL, make sure you have issued a CREATE DATABASE and the database already exists (however the schema can be empty).

ASM will look for its config file in this order until it finds one:

  1. In an environment variable called ASM3_CONF
  2. In $INSTALL_DIR/asm3.conf (the folder asm3 python modules are installed in)
  3. In $HOME/.asm3.conf (the home directory of the user running asm3)
  4. In /etc/asm3.conf

Setting up Apache/WSGI

Set up Apache to serve the application.

The version 44 Debian package has libapache2-mod-wsgi-py3 as a dependency and will install Apache 2 if you don't already have it available.

For older versions, install Apache with:

apt-get install apache2 libapache2-mod-wsgi-py3

As of version 44, the package will also include a site file /etc/apache2/sites-available/asm3.conf with the following content:

WSGIScriptAlias /asm3 /usr/lib/sheltermanager3/code.py/
Alias /asm3/static /usr/lib/sheltermanager3/static
<Directory /usr/lib/sheltermanager3>
    Require all granted
</Directory>

For older versions, you will have to create this file manually.

Once Apache is installed and you have the site file, to activate ASM, run:

a2enmod wsgi
a2ensite asm3
service apache2 restart

You should now be able to visit ASM at http://localhost/asm3

Creating the default database

After the ASM service has started, visit http://localhost/asm3/database to create the database schema (hitting just http://localhost/asm3 will redirect there if no database has been setup yet).

Daily tasks

ASM has a batch of routines that need to be run every day. These should be run a few hours before people will start inputting for the day.

These routines include recalculating denormalised data such as animal age, time on shelter, updating the waiting list and publishing data externally.

To run them, make sure the environment is setup as before and run python3 cron.py all

See the cron.py file for more information on mode parameters to run specific tasks only.

The Debian package automatically adds the daily tasks to /etc/cron.daily