generate-conf.py

import json

def read_conf_file(file_name):
    with open(file_name) as f:
        contents = f.read()
        return contents

with open("servers.json") as f:
    nginx_conf = read_conf_file("nginx.conf.template")
    c = f.read()
    servers_input = json.loads(c)

    all_servers = ""
    for server in servers_input:
        server_conf = ""
        if (server["https"] == True):
            server_conf = read_conf_file("https-server.template")
        else:
            server_conf = read_conf_file("http-server.template")

        server_conf = server_conf.replace("$_SERVER_NAME_$", server["server_name"])
        server_conf = server_conf.replace("$_UPSTREAM_PORT_$", server["upstream_port"])
        all_servers += server_conf

    new_conf = nginx_conf.replace("$$$_SERVERS_$$$", all_servers)
    print(new_conf)

    out_file = open("nginx.conf", "a")
    out_file.write(new_conf)
    out_file.close()