Open a new ecological posture | use WordPress remote attachment to store to Cos

Before I read this article , You've probably heard of WordPress 了 , It's using PHP Language development blog platform , Users can support PHP and MySQL Database server set up their own website , Also can put the WordPress As a content management system （CMS） To use .

WordPress Powerful 、 Extensibility is strong , This is mainly due to its numerous plug-ins , Easy to expand functions , Basically a complete website should have the function , All functions can be realized through its third-party plug-ins .

This article will introduce how to realize remote attachment function by using plug-ins , take WordPress The media library attachment of is stored in the Tencent cloud object store COS  On , And through Tencent cloud CDN Accelerate , Implement all functions .

One 、 brief introduction

First , Let's learn about saving media library attachments in COS It has the following advantages ：

• Accessories will have higher reliability ;

• When users view the image attachment, they will connect directly COS The server , Does not occupy the downlink bandwidth of your server / Traffic , Faster user access ;

• Can cooperate with Tencent cloud CDN Further improve the speed of users to view image attachments , Optimize website access speed .

Two 、 preparation

1、 build WordPress Blog platform .

• You can go to WordPress Official page   download WordPress And check out the installation guide .

• You can also install the server system in   Mirror market   Select pre installed WordPress The ECS of the blog platform （Cloud Virtual Machine,CVM） Mirror image .

2、 Create a public read private write bucket , The region suggestion and operation of the bucket WordPress Blog platform CVM It's the same place , For creation details, see   Create buckets   file .

3、 In the bucket list, find the bucket you just created , And click its bucket name , Enter the bucket page .

4、 In the left navigation bar , Click overview , Check the access domain name and record .

3、 ... and 、 Install and configure plug-ins

（ One ） Installing a plug-in

stay WordPress backstage , single click plug-in unit > Installing a plug-in , Start installing plug-ins . You can obtain plug-ins and install them in the following two ways ：

• Background direct search  Sync QCloud COS  Installation （ Recommended ）.

• You can also choose from  Github  Download the latest releases Source code , adopt WordPress Upload and install in the background , Or upload the source code directly to WordPress Plug-in directory wp-content/plugins, Then enable... In the background .

（ Two ） Configuration plug-ins

1、 single click WordPress Left navigation bar settings , Then configure... In the page COS Information about , See the following table for configuration description ：

Configuration item	Configuration values
Bucket name	Custom name when creating bucket
Bucket area	The region selected when creating the bucket
APPID	APPID It is the account you obtained after successfully applying for Tencent cloud account , Automatically assigned by the system , It is fixed and unique , Can be found in   Account information   View in
SecretID、SecretKey	Access key information , You can go to   cloud API secret key   In order to get
Don't upload thumbnails	If checked, the corresponding thumbnail file will not be uploaded , It is not recommended to check
Do not keep backup locally	If checked, the source file will not be retained locally , It is not recommended to check
Local folder	Local save path , for example wp-content/uploads
URL Prefix	The format is <COS Access to the domain name >/< Local folder >, for example https://examplebucket-1250000000.cos.ap-shanghai.myqcloud.com/wp-content/uploads

2、 When the configuration is complete , Click save .

3、 Upload a new file to test , See attachment details , Check the attached picture URL, Confirm the attached picture URL Point to Tencent cloud COS.

Four 、 Expand

1、 Use CDN To speed up access ：
If the bucket needs to be configured CDN Speed up , See also  CDN Acceleration configuration   file . In the plug-in settings URL Prefix changed to default CDN Acceleration domain name or custom acceleration domain name .

2、 Replace the resource address in the database ：
If it's not a newly created site , The database must be the old resource link address , We need to replace the resource address , The plug-in provides a replacement function , Please remember to back up before the first replacement .

• Old domain name fill in the original resource domain name , for example  https://example.com/

• New domain name fill in the current resource domain name , for example  https://img.example.com/

3、 Set up cross domain access ：
Reference the corresponding resource link in the article , The console will prompt for cross domain errors No 'Access-Control-Allow-Origin' header is present on the requested resource.

The reason is that no header. You need to access... Across domains CORS Add... To the settings HTTP Header To configure . There are two ways to configure ：

 

i. stay CDN Configuration on the console

• If all domain names are allowed , The configuration is as follows ：

Access-Control-Allow-Origin: *

ii. Only your own domain name is allowed to access , The configuration is as follows ：

Access-Control-Allow-Origin: https://example.com

4、 Set back to source ：

If not WordPress Upload resources in the background media library , It is recommended to turn on the back to source setting . After opening , Client first access COS Source file ,COS When you find that you can't hit an object , Return... To the client 302 HTTP Status code and jump to the address corresponding to the source address , At this time, the object is provided by the source station to the client , Make sure to visit .

meanwhile COS Copy the file from the source and save it to the directory corresponding to the bucket ; On the second visit COS Hit the object directly and return it to the client .

5、 ... and 、 summary

In this paper, WordPress Media library attachments for remote to object storage COS  This is the end of practice sharing , The follow-up will bring you a series of information about the ecological platform / Plug in related content , in addition , We will also bring you a variety of ecological empowerment activities , Please look forward to ！

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