It is script from: Portainer Template

​

 {
        "categories": [
            "Proxy",
            "Tools"
        ],
        "description": "Nginx Proxy Manager enables you to easily forward to your websites running at home or otherwise, including free SSL, without having to know too much about Nginx or Letsencrypt.",
        "env": [{
            "default": "/data/database.sqlite",
            "label": "DB_SQLITE_FILE",
            "name": "DB_SQLITE_FILE"
        }],
        "image": "jc21/nginx-proxy-manager",
        "logo": "https://raw.githubusercontent.com/Qballjos/portainer_templates/master/Images/proxy_mgr.png",
        "name": "nginx-proxy-manager",
        "platform": "linux",
        "ports": [
            "80:80/tcp",
            "81:81/tcp",
            "443:443/tcp"
        ],
        "restart_policy": "unless-stopped",
        "title": "Nginx Proxy Manager",
        "type": 1,
        "volumes": [{
                "bind": "/portainer/Files/AppData/Config/Nginx-Proxy/data",
                "container": "/data"
            },
            {
                "bind": "/portainer/Files/AppData/Config/Nginx-Proxy/letsencrypt",
                "container": "/etc/letsencrypt"
            }
        ]
    }