I'm running a dockerized Firefly III on a Raspberry 3 in my local network. With the help of an additional nginx Container and a self-signed SSL Certificate I was able to set up https.
Maybe somebody will find this guide helpfull, it took me a couple of tries to get it right.
Simply follow the official documentation at https://docs.docker.com/install/linux/docker-ce/debian/#install-using-the-convenience-script. You'll need to run the script if you are using the default Raspberry OS: Raspbian.
Use Pythons package manager PIP to install Docker Compose, details can be found on docker.com as well: https://docs.docker.com/compose/install/#install-using-pip. Before you can follow the guide you'll need to install python-pip.
sudo apt-get install python3-pip
Follow the official Guide at https://docs.firefly-iii.org/installation/docker#docker-hub-with-automatic-updates-via-docker-compose to install Firefly III on your Pi and test if you can access it at http://hostname-of-pi. You can check your host name with hostname and modify it with sudo raspi-config. Mine is called raspberry01 and therefore I access it via http://raspberry01.
With openssl you can easily create the required SSL certificate. The certificate will be valid for 365 days.
openssl req -x509 -newkey rsa:2048 -keyout raspberry01.key -out raspberry01.crt -days 365 -nodes
Creating the key on the Raspberry might take a moment. You will be asked for additional information that will be parsed into the certificate but the only important one is the Common Name. You should enter the hostname of your Raspberry here. The others can be skipped with return.
Country Name (2 letter code) [AU]:
State or Province Name (full name) [Some-State]:
Locality Name (eg, city) []:
Organization Name (eg, company) [Internet Widgits Pty Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:raspberry01
Email Address []:
The command created two files (raspberry01.key, raspberry01.crt) that we need to copy to our docker environment.
Further explanation and options to create a certificate can be read about in this stackoverflow post: https://stackoverflow.com/questions/10175812/how-to-create-a-self-signed-certificate-with-openssl.
Next to my /opt/docker/firefly/docker-compose.yml file I created a new folder conf.d. I moved the newly created certificate and key to this folder and created a new configuration file (raspberry01.conf) for nginx.
server {
listen 80;
#redirect all http traffic to https
return 301 https://$host$request_uri;
}
server {
listen 443 ssl;
ssl_certificate /etc/nginx/conf.d/raspberry01.crt;
ssl_certificate_key /etc/nginx/conf.d/raspberry01.key;
location / {
proxy_pass http://172.24.0.1:80;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $server_name;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Ssl on;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
The proxy_pass IP is the Gateway address of my Firefly Docker network. You can check yours by running
docker network inspect firefly_firefly_iii_net
I copied the proxy_set_header options from another issue (#2579) and cannot say if all of them are relevant.
Now you should have a somewhat similar file and folder structure:
|-- /opt/docker/firefly
|-- docker-compose.yml
|-- conf.d
|-- raspberry01.conf
|-- raspberry01.crt
|-- raspberry01.key
I added the official nginx image as additional service to the docker-compose.yml file. Adding it to the existing firefly_iii_net network, exposing port 443 and mounting the local folder conf.d read-only into the container.
[...]
nginx_proxy:
image: nginx:latest
networks:
- firefly_iii_net
ports:
- "443:443"
volumes:
- /opt/docker/firefly/conf.d:/etc/nginx/conf.d:ro
[...]
In the .env file you need to set APP_URL and TRUSTED_PROXIES.
[...]
# This variable must match your installation's external address but keep in mind that
# it's only used on the command line as a fallback value.
APP_URL=https://raspberry01
# TRUSTED_PROXIES is a useful variable when using Docker and/or a reverse proxy.
# Set it to ** and reverse proxies work just fine.
TRUSTED_PROXIES=**
[...]
docker-compose -f /opt/docker/firefly/docker-compse.yml up -d
The first start will download the newly added nginx image which will delay everything for a moment. Access https://hostname-of-pi and accept the browser warning. You created the certificate yourself, it was not signed by an official certificate authority, therefore you are warned by the browser.