Caddyfile

#
# Caddy HTTP basic auth proxy for CoCald
# https://tradingstrategy.ai
#
{
    # Disable the Caddy admin API    
    admin off
    email no-reply@example.com

    # Use the log file mapped to the host FS
    log {
        output file /var/log/caddy/error.log.json
        format json
    }
}

#
# Listen to any domain at port 9998
#

http://:9998 {

    handle {
        basicauth {
            {$HTTP_BASIC_AUTH_USER} {$HTTP_BASIC_AUTH_PASSWORD}
        }   
        reverse_proxy cocalc:80 {
            header_up X-Real-IP {remote_host}
        }
    }

    # Set the default 404 page
    # https://caddyserver.com/docs/caddyfile/directives/handle_errors
    handle_errors {
        respond "{http.error.status_code} {http.error.status_text}"
    }    


    log {
        output file /var/log/caddy/access.log.json
        format json
    }    
}

#
# Plain index.html server to test Caddy and basic auth
#

http://:9997 {

    handle {
        basicauth {
            {$HTTP_BASIC_AUTH_USER} {$HTTP_BASIC_AUTH_PASSWORD}
        }           

        # Mapped in docker-compose.yml
        root * /var/static
        file_server browse
    }

    # Set the default 404 page
    # https://caddyserver.com/docs/caddyfile/directives/handle_errors
    handle_errors {
        respond "{http.error.status_code} {http.error.status_text}"
    }    

    log {
        output file /var/log/caddy/access-test.log.json
        format json
    }      
}