Configuring Amazon Elastic Beanstalk with PostGIS

Question

Does anyone have any experience setting up Amazon Elastic Beanstalk with PostGIS (so that I can take advantage of Geodjango)?

There are a number of features that th

Answer 1

Here in alternative answer with which the python3 bindings for gdal will work in the AWS EB instance. pygdal is a nice package for “virtualenv and setuptools friendly version of standard GDAL python bindings”, but does not support 1.7.3, which is the gdal version installed using sudo yum -y install gdal gdal-devel, e.g this answer.

Thus, I had to install an updated gdal and also setup linkages to go with it. This method draws on information in yellowcap’s, radek’s and various other Stackoverflow posts.

As yellowcap said, you must set ENVIRONMENT VARIABLES that make the library linkages you need. In the AWS EB console, Configuration --> Software configuration, edit the Environment Properties adding: LD_LIBRARY_PATH  = “/usr/local/lib/:$LD_LIBRARY_PATH”

LD_PRELOAD = ”/usr/lib/libgdal.so.1

Put the following in your .ebextensions folder at the base of your repository:

django.config:

option_settings:
  "aws:elasticbeanstalk:application:environment":
    DJANGO_SETTINGS_MODULE: “.settings.server_settings"
    PYTHONPATH: "$PYTHONPATH"
  "aws:elasticbeanstalk:container:python":
    WSGIPath: “/wsgi.py"
  "aws:elasticbeanstalk:container:python:staticfiles":
    "/static/": "www/static/"

commands:
  01_yum_update:
    command: sudo yum -y update
  02_pip_upgrade:
    command: /opt/python/run/venv/bin/pip install --upgrade pip
    ignoreErrors: false

packages:
  yum:
    postgresql95-devel: []
    git: []
    libffi-devel: []

container_commands:
  01_migrate:
    command: "python manage.py migrate"
    leader_only: true
  02_collectstatic:
    command: "source /opt/python/run/venv/bin/activate && python manage.py collectstatic --noinput”

gdal.config

files:
 "/opt/elasticbeanstalk/hooks/appdeploy/pre/01_install_gdal_prerequisites.sh":
    mode: "000755"
    owner: root
    group: root
    content: |
        #!/usr/bin/env bash

        sudo yum install -y gcc-c++ gcc libpng libtiff postgresql95-devel git libffi-devel libxml2-devel libxslt-devel htop

        wget http://download.osgeo.org/proj/proj-4.9.3.tar.gz
        tar -zvxf proj-4.9.3.tar.gz
        cd proj-4.9.3
        ./configure
        make -j 2
        sudo make install
        cd ..
        rm proj-4.9.3.tar.gz

        wget http://download.osgeo.org/gdal/2.3.2/gdal-2.3.2.tar.gz
        tar -zvxf gdal-2.3.2.tar.gz
        cd gdal-2.3.2
        ./configure --with-static-proj4=/usr/local/lib --with-python --with-threads --with-pg=/usr/bin/pg_config
        make -j 2
        sudo make install
        cd ..
        rm gdal-2.3.2.tar.gz

        ln -s /usr/local/lib/libgdal.so /usr/lib/libgdal.so.1
        sudo ldconfig

in requirements.py include the pygdal package

pygdal==2.3.2.4

You must be sure that the gdal version number matches the pygdal version number, see pygdal documentation.

Result

The following works the EC2 instance virtual env, where your django project is located:

$ python manage.py shell
In [1]: from osgeo import gdal

In [2]: