■再起動方法
service openresty restart
■nginxのファイル
/usr/local/openresty/nginx
■nginxの設定ファイル群
/usr/local/openresty/nginx/conf

http {
    include       mime.types;
    default_type  application/octet-stream;
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    #access_log  logs/access.log  main;
    sendfile        on;
    #tcp_nopush     on;
    #keepalive_timeout  0;
    keepalive_timeout  65;
    #gzip  on;

    server {
        listen       80;
        #server_name  localhost;
        #ドメイン名を入力
        server_name  twnow.tokyo;

        #charset koi8-r;
        #access_log  logs/host.access.log  main;

        location / {
            #ルートディレクトリを指定!
            root   /var/www;
            index  index.php index.html index.htm;
        }
        #error_page  404              /404.html;
        # redirect server error pages to the static page /50x.html
        # ここはコメントアウトしなくても別にいいよ
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /var/www;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        # PHPを動作させる設定。ConoHaの場合以下の設定じゃないと使えないよ!
        location ~ \.php$ {
            #ルートディレクトリを指定
            root           /var/www;
            #以下コメントアウトするだけ!
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root/$fastcgi_script_name;
            include        fastcgi_params;
        }
        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }
}

sudo ufw allow 'Nginx HTTP'
sudo ufw reload

sudo apt install certbot
certbot certonly

How would you like to authenticate with the ACME CA?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: Spin up a temporary webserver (standalone)
2: Place files in webroot directory (webroot)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2

    # HTTPS server
    #
    server {
        listen       443 ssl;
        server_name  twnow.tokyo;
        root /var/www;
        ssl_certificate      /etc/letsencrypt/live/twnow.tokyo/fullchain.pem;
        ssl_certificate_key  /etc/letsencrypt/live/twnow.tokyo/privkey.pem;

        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;

        ssl_ciphers  HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers  on;

        location / {
            root   /var/www;
            index  index.php index.html index.htm;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /var/www;
        }

        location ~ \.php$ {
            root           /var/www;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root/$fastcgi_script_name;
            include        fastcgi_params;
        }
    }