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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.

Requirements

This guide requires a Linux-system, where docker and docker-compose are installed. Ensure, that your system is up to date.

TODO

apt install docker.io docker-compose pwgen

Before Getting Started

The example configurations assume two domains, which points to the server's IP address. This documentation uses portal.example.com and login.example.com. The API is hosted at https://portal.example.com/api, while the main frontend is reachable at the domain root.

Setup instructions

First of all, login into your system via SSH.

Create working directory

Create a folder somewhere in your system, in this guide we use /opt/openbikesensor:

mkdir /opt/openbikesensor

Clone the repository

Clone the repository to /opt/openbikesensor/:

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

Copy predefined configuration files

mkdir -p /opt/openbikesensor/config
cd /opt/openbikesensor/
cp -r source/deployment/config source/deployment/docker-compose.yaml source/deployment/.env .

Create a Docker network

docker network create gateway

Traefik

Configure traefik.toml

cd /opt/openbikesensor/
nano 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.

Start Traefik

cd /opt/openbikesensor/
docker-compose up -d traefik
docker-compose logs -f traefik

traefik_1 | time="2022-01-03T13:02:36Z" level=info msg="Configuration loaded from file: /traefik.toml"

Generate passwords

Generate three passords, for example with pwgen:

pwgen -n 20

They will be uses in the next steps.

KeyCloak

Configure .env

cd /opt/openbikesensor/
nano .env

Configure:

  • OBS_KEYCLOAK_URI:
    • The subdomain of your keycloak
  • OBS_KEYCLOAK_POSTGRES_PASSWORD
    • One of the generated passwords for the KeyCloak-postgres
  • OBS_KEYCLOAK_ADMIN_PASSWORD:
    • One of the generated passwords for the KeyCloak-admin
  • OBS_KEYCLOAK_PORTAL_REDIRECT_URI:
    • The Redirect URI, e.g. the subdomain of your portal (ensure, it ends with /*)

Start KeyCloak

docker-compose up -d keycloak
docker-compose logs -f keycloak

Wait until postgres and keycloak are started:

keycloak_1 | 13:08:55,558 INFO [org.jboss.as] (Controller Boot Thread) WFLYSRV0051: Admin console listening on http://127.0.0.1:9990

Open:

Configure Realm and Client

Jump into the KeyCloak container:

docker-compose exec keycloak /bin/bash

Since we configured the .env-file we can run the following commands to create a realm and a client now:

# Login
/opt/jboss/keycloak/bin/kcadm.sh config credentials --server http://localhost:8080/auth --realm master --user $KEYCLOAK_USER --password $KEYCLOAK_PASSWORD

# Create Realm
/opt/jboss/keycloak/bin/kcadm.sh create realms -s realm=$OBS_KEYCLOAK_REALM -s enabled=true -o

# Create a client and remember the unique id of the client
CID=$(/opt/jboss/keycloak/bin/kcadm.sh create clients -r $OBS_KEYCLOAK_REALM -s clientId=portal -s "redirectUris=[\"$OBS_KEYCLOAK_PORTAL_REDIRECT_URI\"]" -i)

# Create a secret for the client
/opt/jboss/keycloak/bin/kcadm.sh create clients/$CID/client-secret -r $OBS_KEYCLOAK_REALM

# Get the secret of the client
/opt/jboss/keycloak/bin/kcadm.sh get clients/$CID/client-secret -r $OBS_KEYCLOAK_REALM

Exit the container with exit. Configure the client secret:

cd /opt/openbikesensor/
nano .env

Configure:

  • OBS_KEYCLOAK_CLIENT_SECRET:
    • Use the obtained client secret

Create a user

  • Login into your Keycloak with the admin user and select the realm obs
  • Create a user with username and email for the realm obs (Hint: email is required by the portal)
  • Configure a password in the tab Credentials as well

Portal

Configure Postgres

cd /opt/openbikesensor/
nano .env

Configure:

  • OBS_POSTGRES_HOST:
    • The should be the postgres-container, e.g. postgres
  • OBS_POSTGRES_USER:
    • The default postgres-user is obs
  • OBS_POSTGRES_PASSWORD:
    • Use one of the generated passwords for the postgres
  • OBS_POSTGRES_DB:
    • The default postgres-database is obs
  • OBS_POSTGRES_URL:
    • Use the same informations as aboe to configure the POSTGRES_URL, this one is used by the portal.

Start Postgres for the portal

cd /opt/openbikesensor/
docker-compose up -d postgres
docker-compose logs -f postgres

Wait until started:

postgres_1 | PostgreSQL init process complete; ready for start up.

Build the portal image

cd /opt/openbikesensor/
docker-compose build portal

Hint: This may take up to 10 minutes. In the future, we will provide a prebuild image.

Prepare database

Run the following scripts to prepare the database:

docker-compose run --rm portal tools/upgrade.py

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

Import OpenStreetMap data

Follow these instructions.

Configure portal

The portal can be configured via env-vars or via the config.py. It's important to know, that the config.py overrides the env-vars. All env-vars start with OBS_ and will be handled by the application without the prefix. For example, the env-var OBS_SECRET will be same as SECRET within the config.py and will be SECRET within the application.

cd /opt/openbikesensor/
nano .env

Configure:

  • OBS_PORTAL_URI:
    • The subdomain of your portal
  • OBS_SECRET:
    • Generate a UUID with uuidgen and use it as the secret
  • OBS_POSTGRES_URL:
    • Should be configured already
  • OBS_KEYCLOAK_URL:
    • You can find it as the issuer, when you click on OpenID Endpoint Configuration in the realm obs
  • OBS_KEYCLOAK_CLIENT_SECRET:
    • Should be configured already
  • OBS: DEDICATED_WORKER
    • Should be set to "True", since it the workder will be started with the portal
  • OBS_DATA_DIR
    • The data dir must be the same for the portal and the worer. The default is /data within the containers
  • OBS_PROXIES_COUNT:
    • This sets PROXIES_COUNT = 1 in your config
    • 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.

Have a look into the config.py, which other variables may affect you.

Start the portal

cd /opt/openbikesensor/
docker-compose up -d portal
docker-compose logs -f portal worker

portal_1 | [2022-01-03 13:37:48 +0000] [1] [INFO] Goin' Fast @ http://0.0.0.0:3000

This also starts a dedicated worker container to handle the tracks.

Test the portal

You should see smth. like:

worker_1 | INFO: Track uuqvcvlm imported.

When you click on My Tracks, you should see it on a map.

Configure the map position

Open the tab Map* an zoom to the desired position. The URL contains the corresponding GPS position, for example:

14/53.86449349032097/10.696108517499198

Configure the map position in the config.py and restart the portal, by setting mapHome in the variable FRONTEND_CONFIG:

cd /opt/openbikesensor/
nano config/config.py 

docker-compose restart portal

Hint: Maybe it's required to disable the browser cache to see the change.

The tab Map should be the selected map section now. When you uploaded some tracks, you map should show a colors overlay on the streets.

Miscellaneous

Logs

To read the logs, run

docker-compose logs -f

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

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.

Migrating

Migrations are done with Alembic, please refer to its documentation for help. Most of the time, running this command will do all the migrations you need:

docker-compose run --rm portal alembic upgrade head

You are advised to create a backup (see below) before running a migration, and to shut down the services before the migration and start them afterwards.

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:

  • road_usage
  • 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!

Connecting to the PostgreSQL database

Here are the quick steps for connecting to your PostgreSQL database, should you need that:

  • Add the gateway network to your postgres service.

  • Add a port forwarding to your postgres service:

       ports:
     - 127.0.0.1:25432:5432

  • Run docker-compose up -d postgres again

  • You can now connect from your server to the PostgreSQL service with:

    psql -h localhost -U obs -d obs -p 25432

    You will need your database password for the connection.

  • If you do not want to install psql outside your container, you can use an SSH tunnel from your local machine to your server and run psql locally.