Getting 500 error with self signed certificate - ssl

Question

I 'am trying to get to run two services in a docker environment. One is an Angular application and the other is my small python server. I have added the jwilder nginx reverse proxy for authentication and ssl configuration with my self signed certificate. All the containers are running on the same virtual host, that I am able to access them from another host. I've added the certificates like in the documentation from jwilder and there is written that this will happen
(likely w/ a warning) and subsequently receive a 500 (https://hub.docker.com/r/jwilder/nginx-proxy)
I need to find a solution to access my services threw the nginx proxy with SSL somebody knows how to do this better?
version: "3"
services:
controller:
build: ./controller
expose:
- "5080" #This port should be accessible from the frontend but as they are running on the same host I am not able to distinguish the services
restart: always
frontend:
build: ./frontend
expose:
- "4200"
environment:
- DEFAULT_HOST=my-ip-address #to make it accessible from outside
- VIRTUAL_HOST=my-ip-address
# - VIRTUAL_PORT 4200
# - VIRTUAL_PROTO=https
- PROXY_ADDRESS_FORWARDING=true
- NODE_END = production
depends_on:
- controller
restart: always
nginx-reverse-proxy:
image: jwilder/nginx-proxy #budry/jwilder-nginx-proxy-arm # This will run later on the raspberryPi
ports:
- "80:80"
- "443:443"
volumes:
- /var/run/docker.sock:/tmp/docker.sock:ro
- ./nginx.htpasswd:/etc/nginx/htpasswd/my-ip-address
# My self signed certificates
- ./ssl/server.crt:/etc/nginx/certs/default.crt
- ./ssl/server.key:/etc/nginx/certs/default.key
restart: always
So I found out somehow in the nginx configuration file from jwilder he is running in this case
{{ if (and (not $is_https) (exists "/etc/nginx/certs/default.crt") (exists "/etc/nginx/certs/default.key")) }}
server {
server_name {{ $host }};
listen 443 ssl http2 {{ $default_server }};
{{ if $enable_ipv6 }}
listen [::]:443 ssl http2 {{ $default_server }};
{{ end }}
access_log /var/log/nginx/access.log vhost;
return 500;
ssl_certificate /etc/nginx/certs/default.crt;
ssl_certificate_key /etc/nginx/certs/default.key;
}
Why is he doing this and how can I fix this ?
I am able to access my frontend with http://my-ip-address (should be forwarded to https) but on https://my-ip-address I am getting a "500 Internal Server Error"