Scrapyd服务器搭建

搭建Scrapyd服务

检查是否安装systemd

服务器CentOS 7

[root@VM_0_6_centos ~]# yum install systemd
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
epel                                                                                       | 5.3 kB  00:00:00
extras                                                                                     | 2.9 kB  00:00:00
os                                                                                         | 3.6 kB  00:00:00
updates                                                                                    | 2.9 kB  00:00:00
Package systemd-219-67.el7_7.2.x86_64 already installed and latest version
Nothing to do

新建scrapyd.service文件,然后添加一些内容(需要root权限)我是以root账户操作的。

vim /lib/systemd/system/scrapyd.service

系统可能默认没有安装vim,安装或者改用vi等即可。

添加内容:

[Unit]
Description=scrapyd
After=network.target
Documentation=http://scrapyd.readthedocs.org/en/latest/api.html

[Service]
User=root
ExecStart=/usr/local/bin/scrapyd --logfile /var/scrapyd/scrapyd.log

[Install]
WantedBy=multi-user.target
  • [Unit]区块通常是配置文件的第一个区块,用来定义Unit的元数据,以及配置与其他Unit的关系
  • After:如果该字段指定的Unit After也要启动,那么必须在当前service之前启动
  • Documentation:服务器文档地址
  • Description:简短描述
  • [Service]区块用来Service配置,只有Service类型的Unit才有这个区块
  • ExecStart:启动当前服务的命令
  • [Install]:通常是配置文件的最后一个区块,用来定义如何启动,以及是否开机启动
  • WantedBy:它的值是一个或多个Target,当前Unit激活时(enable)符号连接会放入/etc/systemd/system目录下以Target名+.wants后缀后成的子目录中,由此我们就可以通过命令行启动一个新的服务了

启动服务

systemctl start scrapyd
service scrapyd start

使用curl工具检测scrapyd服务器状态:

[root@VM_0_6_centos ~]# curl http://localhost:6800/daemonstatus.json
{"node_name": "VM_0_6_centos", "status": "ok", "pending": 0, "running": 0, "finished": 1}

可以通过下面的指令来检查服务器的状态:

[root@VM_0_6_centos ~]# systemctl status scrapyd

● scrapyd.service - scrapyd
   Loaded: loaded (/usr/lib/systemd/system/scrapyd.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2020-01-10 22:46:46 CST; 18h ago
     Docs: http://scrapyd.readthedocs.org/en/latest/api.html
 Main PID: 12072 (scrapyd)
   CGroup: /system.slice/scrapyd.service
           └─12072 /usr/bin/python3 /usr/local/bin/scrapyd --logfile /var/scr...

Jan 10 22:46:46 VM_0_6_centos systemd[1]: Started scrapyd.

通过下面的指令让Scrapyd随同操作系统一同启动

systemctl enable scrapyd

Scrapyd服务器添加认证信息

以Nginx为例,在Scrapyd前面添加一层反向代理来实现用户的认证

安装Nginx

yum install nginx

配置Nginx

vim /etc/nginx/nginx.conf

我们在http的大括号中添加一个server

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }
    # 以下是新添加的内容
    server {
        listen 6801;
        location / {
            proxy_pass http://127.0.0.1:6800;
            auth_basic "Restricted";
            auth_basic_user_file /etc/nginx/conf.d/.htpasswd;
        }
    }

这里我们监听的是6801端口,也就是通过6801端口的访问传到Scrapyd的6800,也就是我们只暴露了6801端口

切换到/etc/nginx/conf.d目录下,如果没有这个目录就新建一个,创建用户认证

[root@VM_0_6_centos ~]# htpasswd -c .htpasswd ray
New password:
Re-type new password:

两次输入密码之后,我们成功创建了ray用户。

最后的步骤

我们前面已经开启了scrapyd服务,必须先停止掉

killall scrapyd

修改Scrapyd的配置文件,以防止可以从外面绕过Nginx,直接访问6800端口。

Scrapyd启动时会自动搜索配置文件,最后加载的配置文件会覆盖前面的配置文件,配置文件的加载顺序为:

/etc/scrapyd/scrapyd.conf /etc/scrapyd/conf.d/* scrapyd.con ~/.scrapyd.con

现在我们除了默认的配置文件之外没有其他的配置文件,所以修改默认的配置文件:

vim /etc/scrapyd/scrapyd.conf

修改如下:

字段blind_address必须改为127.0.0.1以防止绕过Nginx直接访问6800端口

[scrapyd]
eggs_dir    = eggs
logs_dir    = logs
items_dir   =
jobs_to_keep = 5
dbs_dir     = dbs
max_proc    = 0
max_proc_per_cpu = 4
finished_to_keep = 100
poll_interval = 5.0
bind_address = 127.0.0.1
http_port   = 6800
debug       = off
runner      = scrapyd.runner
application = scrapyd.app.application
launcher    = scrapyd.launcher.Launcher
webroot     = scrapyd.website.Root

[services]
schedule.json     = scrapyd.webservice.Schedule
cancel.json       = scrapyd.webservice.Cancel
addversion.json   = scrapyd.webservice.AddVersion
listprojects.json = scrapyd.webservice.ListProjects
listversions.json = scrapyd.webservice.ListVersions
listspiders.json  = scrapyd.webservice.ListSpiders
delproject.json   = scrapyd.webservice.DeleteProject
delversion.json   = scrapyd.webservice.DeleteVersion
listjobs.json     = scrapyd.webservice.ListJobs
daemonstatus.json = scrapyd.webservice.DaemonStatus

配置完成之后,开启Nginx与Scrapyd并测试,步骤如下:

开启scrapyd服务

service scrapyd start

开启Nginx服务

切换到/etc/nginx目录然后nginx -t检错,无误之后nginx开启服务

curl工具测试

服务器IP地址已做处理

(venv) F:Crawl>curl http://***.***.***.**:6801
<html>
<head><title>401 Authorization Required</title></head>
<body>
<center><h1>401 Authorization Required</h1></center>
<hr><center>nginx/1.16.1</center>
</body>
</html>

上面的信息告诉我们需要认证,我们所有的配置都已成功

试一下直接访问6800端口会出现Time out错误

(venv) F:Crawl>curl http://***.***.***.**:6800
curl: (7) Failed to connect to ***.***.***.** port 6800: Timed out

使用curl工具身份验证,加上参数-u 用户:密码即可

(venv) F:Crawl>curl http://***.***.***.**:6801/daemonstatus.json -u ray:*******
{"node_name": "VM_0_6_centos", "status": "ok", "pending": 0, "running": 0, "finished": 0}
原文地址:https://www.cnblogs.com/1328497946TS/p/12180538.html