obs-portal/deployment

Deploying an OpenBikeSensor Portal with Docker

Introduction

The main idea of this document is to provide an easy docker-based production-ready setup of the openbikesensor portal. It uses the the traefik proxy as a reverse proxy, which listens on port 80 and 443. Based on some labels, traefik routes the domains to the corresponding docker containers.

Before Getting Started

The guide and example configuration assumes one domain, which points to the server's IP address. This documentation uses portal.example.com as an example. The API is hosted at https://portal.example.com/api, while the main frontend is reachable at the domain root.

Setup instructions

Clone the repository

First create a folder somewhere in your system, in the example we use /opt/openbikesensor and export it as $ROOT to more easily refer to it.

Clone the repository to $ROOT/source.

export ROOT=/opt/openbikesensor
mkdir -p $ROOT
cd $ROOT
git clone --recursive https://github.com/openbikesensor/portal source/
# If you accidentally cloned without --recursive, fix it by running:
# git submodule update --init --recursive

Unless otherwise mentioned, commands below assume your current working directory to be $ROOT.

Configure traefik.toml

mkdir -p config/
cp source/deployment/examples/traefik.toml config/traefik.toml
vim config/traefik.toml

Configure your email in the config/traefik.toml. This email is used by Let's Encrypt to send you some emails regarding your certificates.

Configure docker-compose.yaml

cp source/deployment/examples/docker-compose.yaml docker-compose.yaml
vim docker-compose.yaml

• Change the domain where it occurs, such as in Host() rules.
• Generate a secure password for the PostgreSQL database user. You will need to configure this in the application later.

Create a keycloak instance

Follow the official guides to create your own keycloak server. You can run the keycloak in docker and include it in your docker-compose.yaml, if you like.

Documenting the details of this is out of scope for our project. Please make sure to configure:

• An admin account for yourself
• A realm for the portal
• A client in that realm with "Access Type" set to "confidential" and a redirect URL of this pattern: https://portal.example.com/login/redirect

Prepare database

Run the following two scripts to prepare the database:

docker-compose run --rm portal tools/reset_database.py
docker-compose run --rm portal tools/prepare_sql_tiles.py

For more details, see README.md under "Prepare database".

Import OpenStreetMap data

First of all, download the area(s) you would like to import from GeoFabrik into data/pbf, for example:

wget https://download.geofabrik.de/europe/germany/schleswig-holstein-latest.osm.pbf -P data/pbf

Afterwards,run the following script:

docker-compose run --rm portal tools/osm2pgsql.sh

For more details. see README.md under "Import OpenStreetMap data".

Configure portal

cp source/api/config.py.example config/config.py

Then edit config/config.py to your heart's content (and matching the configuration of the keycloak). Do not forget to generate a secure secret string.

Also set PROXIES_COUNT = 1 in your config, even if that option is not included in the example file. Read the Sanic docs for why this needs to be done. If your reverse proxy supports it, you can also use a forwarded secret to secure your proxy target from spoofing. This is not required if your application server does not listen on a public interface, but it is recommended anyway, if possible.

Build container and run them

docker-compose build portal
docker-compose up -d portal

Running a dedicated worker

Extend your docker-compose.yaml with the following service:

  worker:
    image: openbikesensor-portal
    build:
      context: ./source
    volumes:
      - ./data/api-data:/data
      - ./config/config.py:/opt/obs/api/config.py
    restart: on-failure
    links:
      - postgres
    networks:
      - backend
    command:
      - python
      - tools/process_track.py

Change the DEDICATED_WORKER option in your config to True to stop processing tracks in the portal container. Then restart the portal service and start the worker service.

Miscellaneous

Logs

To read logs, run

docker-compose logs -f

If something went wrong, you can reconfigure your config files and rerun:

docker-compose build
docker-compose up -d

Updates

Before updating make sure that you have properly backed-up your instance so you can always roll back to a pre-update state.

Backups

To backup your instances private data you only need to backup the $ROOT folder. This should contain everything needed to start your instance again, no persistent data lives in docker containers. You should stop the containers for a clean backup.

This backup contains the imported OSM data as well. That is of course a lot of redundant data, but very nice to have for a quick restore operation. If you want to generate smaller, nonredundant backups, or backups during live operation of the database, use a tool like pg_dump and extract only the required tables:

• overtaking_event
• track
• user (make sure to reference public.user, not the postgres user table)
• comment

You might also instead use the --exclude-table option to ignore the road table only (adjust connection parameters and names):

pg_dump -h localhost -d obs -U obs -n public -T road -f backup-`date +%F`.sql

Also back up the raw uploaded files, i.e. the local/api-data/tracks directory. The processed data can be regenerated, but you can also back that up, from local/api-data/processing-output.

Finally, make sure to create a backup of your keycloak instance. Refer to the keycloak documentation for how to export its data in a restorable way. This should work very well if you are storing keycloak data in the PostgreSQL and exporting that with an exclusion pattern instead of an explicit list.

And then, please test your backup and restore strategy before going live, or at least before you need it!