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Example Geo-Capable Django REST framework (DRF) API using Docker

This is a simple example repo to quickstart a DRF API within a Docker container.

Allows for multiple environments to run API, through series of docker-compose files. You should be able to replace the Django Code, making a few updates and get this running with a new API or existing one.

Main Parts of Repo

DOCKER related:

  • env.sample - A sample env file to setup environmental variables
  • bin directory - directory containing the startup and entrypoint scripts:
    • - This script runs a docker-compose build command, accepts 2 flags:
      • -d - Builds containers based on the development-docker-compose.yml file
      • -p - Builds containers based on the production-docker-compose.yml file
    • - This script runs a docker-compose up command, starting the containers and apps, accepts 2 flags:
      • -d - Starts containers based on the development-docker-compose.yml file
      • -p - Starts containers based on the production-docker-compose.yml file
    • - This script spins up and runs tests in test containers. and removes test container once the script is complete
    • Entrypoint scripts - These are run within the api container when docker-compose up is run:
      • - Startup tasks for development container
      • - Startup tasks for production container
      • - Startup tasks for testing container
    • - Script which will remove the sample app and create a new api with specified project name. It assumes the default app created will be named api.
    • - This script removes the sample application - is called as part of the script.
  • Backups directory - directory where you can store any database backups to restore into the local database Container; also contains the database restore script
  • Docker-Compose Files - 2 files which compose containers and networking for each environment:
    • development-docker-compose.yml - This is a local dev environment, will spin up a local api container connecting with a local db. It will run the Django Dev Server with the DEBUG variable set to True.
    • production-docker-compose.yml - This is set to run a production-like environment, creating a api container running with gunicorn server, and green database pooling. It removes the local development database from the stack, connecting to a remote database for which the variables/creds are entered into the production vars in the .env file
    • DOCKERFILE.db.development - The DOCKERFILE for local database container
    • DOCKERFILE.api.development - The DOCKERFILE for local api container
    • DOCKERFILE.api.production - The DOCKERFILE for a production build of api

API Related:

  • - Config file for the gunicorn server

Quickstart for your own API - Development

Once you understand the sample you can create your own api. This repo contains a quickstart script that is intended to remove the sample app and quickly spin up a development repo. It is only intended to remove the sample application. It will not delete an api if it is already began. See Manual Setup steps below on how to manually remove an existing API and start or copy in your own.

  1. cp env.sample .env in the root of the repo (this file is already in the .gitignore, so you should not have to worry about it getting accidentally checked into a GitHub repo)

  2. Edit your .env file and change the DEVELOPMENT_ variables to appropriate values for your project's databasae backup - feel free to ignore the PRODUCTION_ variables for the moment. Ensure that the values PROJECT_NAME, DEVELOPMENT_POSTGRES_NAME, and DEVELOPMENT_DATABASE_OWNER are set correctly. You should not need to change any of the other values. If you unsure of what values to use for these settings or do not have a database backup file, please contact your Team's Data Manager before proceeding further.

PROJECT_NAME=<What you want to name the project>

# keep as true to run the Django dev server

# the database superuser name - this is the default

# the database name the API will connect to - "dbname" in most PostgreSQL command-line tools

# the database owner - automatic restore needs this

# *service* name (*not* image name) of the database in the Docker network

# port the database is listening on in the Docker network

# password for the PostgreSQL database superuser in the database container

# Django secret key in the API container
  1. Copy your database backup file into the backup folder. Database container is a PostGIS-enabled 9.6 container. Backup can be a .backup, .sql, or .sql.gz format.

  2. Run the create-project script: ./bin/ (This will delete all files related to the sample app and replace with a new Django REST framework app with your project name. It will also replace the default file with the, which has been pre-configured a bit for our stack.)

  3. This would be a good point to instantiate a new Git history for the project going forward. You can remove the existing git by removing the hidden folder - make sure you are in the repo directory and run rm -rf .git. You can then run git init to start a new history and then add your remote branch.

  4. Run the bin/ script to build the project. Since you are going to be running it on the local machine you will want to run: ./bin/ -d, this command is doing a docker-compose build in the background. It is downloading the images needed for the project to your local machine.

  5. Once this completes you will now want to start up the project. We will use the script for this, again using the -d flag to run locally: ./bin/ -d The first time you run this you will see the database restores. You will also see the api container start up.

  6. Create your api code. Checkout the Django REST framework Guide on how to proceed.

Manually Setup an API - Development

If you would prefer or need to startup your own API, here are the steps to walk through:

  1. Follow Steps 1-3 under the Quickstart Guide

  2. Remove the Django related and any old database files, not related to your project. For the sample app this would be:

  • ./
  • dead_songs The Django folder (The $PROJECT_NAME folder)
  • api the Django app folder
  • ./Backups/dead_songs.sql - the sql backup
  1. You will want to tear down and remove the entire docker stack to confirm no extra artifacts from the sample app are remaining in your new build: docker-compose -f development-docker-compose.yml down --rmi all --volumes --remove-orphans

  2. Now you will want to create the sample app within your docker container. The development-docker-compose.yml file gives the basic config of your setup, connecting to the env variables specified. It specifies the root of the repo directory as the local storage volume so you will see files created within the repo. :

docker-compose -f development-docker-compose.yml run --no-deps --rm \
  api_development \
  /bin/bash -c " startproject something_else_2fhdfsl . ; python startapp api"
  1. If on Linux, you may need to change ownership on the files created from the docker container:
ls -l
echo "sudo chown -R `id -u $USER`:`id -g $USER` ."
sudo chown -R `id -u $USER`:`id -g $USER` .
ls -l
  1. There is a recommended file in the bin called This is the basic current example which works with the intended python packages for both development and production. It is configured to pickup the os variables related to Django and the Database. In a new API you should be able to copy over the file, renaming and replacing the auto generated After this, you can replace all occurances of <EXAMPLE_PROJECT_NAME> with your actual project name

  2. Continue with steps 5-7 of Quickstart guide to complete building the API

Run the Sample

There is currently a Sample API included within the repo. To run:

  1. First cd into the root directory of your clone of the repo and run the command cp env.sample .env

  2. Build the development containers using the command: ./bin/ -d. If this script won't run, you may need to confirm you have executable perms on all the scripts in the ./bin folder: $ chmod +x ./bin/*.sh Feel free to read each one and assign perms individually, 'cause it is your computer 😜 and security is a real thing.

  3. Once this completes you will now want to start up the project. We will use the script for this, again using the -d flag to run locally: ./bin/ -d The first time you run this you will see the database restores. You will also see the api container start up.

  4. Open your browser and you will be able to access the Django REST framework browserable front end. The IP address you use will depend on your Docker hosting:

    • Windows 10 Pro + Docker for Windows, MacOS or Linux: API root http://localhost:8000/api, Swagger API schema http://localhost:8000/schema

    • Docker Toolbox running on Windows or Mac: API root http://MACHINE-IP:8000/api, Swagger API schema http://MACHINE-IP:8000/schema

      where MACHINE-IP is the IP address docker-machine ip returns.

  5. You can stop the container using Ctrl-C to stop the process in the terminal window.

Run the Tests

This repo contains some tests for the Sample API. It will import a fixtures file containing example data that has been exported from the Django API using the dumpdata command:

./ dumpdata --indent=2 -v 2 --traceback api > ./api/fixtures/songs.json

To run the tests:

  1. Run ./bin/ -d - this will load the fixtures and run tests.

Currently this repo contains two type of tests:

  • Unit tests which verify the expected data types are returned
  • API tests, which verify correct status codes are returned when making calls to api endpoints

Contributors and History

This repo represents the work of many members of the Hack Oregon project team. The roots of this work began with the 2017 backend-service-pattern, the work of the DevOps and platform teams, and the APIs deployed for the 2017 seasons.

This current implementation builds on the transportation-system-backend and passenger_census_api. The database structure is an implementation of the PostGIS container of the data-science-pet-containers repo.

Major Contributors

M. Edward (Ed) Borasky (znmeb), Brian Grant (bhgrant8, BrianHGrant), Adi (kiniadit), Mike Lonergan (mikethecanuck), Alec Peters (adpeters), Nathan Miller (nam20485).

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