Caching proxy for S3 with SSL terminator

docker-compose.yml

services:
    
    ssl_terminator:
        # ssl terminator docs: https://24hoursmedia.github.io/docker-nginx-ssl-terminator/
        image: 24hoursmedia/nginx-ssl-terminator:1.2.0-nginx1.25-alpine3.18-slim
        restart: always
        depends_on:
            - caching_proxy
        ports:
            - "${PUBLIC_HTTPS_PORT:-443}:12443"
        environment:
            - "HTTPS_PORT=12443"
            - "HTTP_PORT=12080"
            - "BACKEND_HOST=caching_proxy"
            - "BACKEND_PORT=12001"
            # these are the locations of the ssl certs, by default they
            # contain self signed developer certificates.
            - "SSL_CERT=/sslcerts/server.crt"
            - "SSL_CERT_KEY=/sslcerts/server.key"
        # mount your own server certificate and key like this: 
        #volumes:
        #    - "./mysslcert.crt:/sslcerts/server.crt"
        #    - "./mysslkey.key:/sslcerts/server.key"
    
    caching_proxy:
        # caching proxy docs: https://24hoursmedia.github.io/docker-cachelink-proxy/
        image: 24hoursmedia/cachelink-proxy:1.0.0-nginx1.25-alpine3.18-slim
        restart: always
        depends_on:
            - forward_proxy
        ports:
            - "${PUBLIC_HTTP_PORT:-443}:12001"      
        environment:
            - "CACHE_BACKEND=http://forward_proxy:12000"
            - "CACHE_PORT=12001"
            - "CACHE_STRATEGY=force"
            - "CACHE_TTL=600"
    
    forward_proxy:
        # forward proxy docs: https://24hoursmedia.github.io/docker-flowforward-proxy/
        image: 24hoursmedia/flowforward-proxy:1.0.0-nginx1.25-alpine3.18-slim
        restart: always
        environment:
            # replace with your own s3 bucket
            - "PROXY_BACKEND=YOURS3BUCKET.s3.eu-central-1.amazonaws.com"
            - "PROXY_PORT=12000"