AnQiCMS (AnQiCMS) is an efficient and customizable content management system that plays a core role in website operations.Is the static resource file of the "AnQiCMS project" still accessible via CDN after the project stops?When faced with this question, as an experienced website operations expert, I am well aware that it involves multiple layers such as website architecture, content distribution mechanisms, and the working principles of CDN.To accurately answer this question, we need to deeply analyze from two perspectives: how AnQiCMS manages static resources and how CDN interacts with these resources.
Let's first understand the basic strategy of AnQiCMS in static resource management. According to the document you provided, the template files of AnQiCMS explicitly state: "The styles, js scripts, images, and other static resources used in the templates are stored separately in"/public/static/Table of Contents.This means that AnQiCMS itself stores these static files in a specific directory on the server.In actual deployment, especially in production environments, AnQiCMS usually does not provide services directly to the outside, but instead uses a front-end web server (such as Nginx or Apache) as a reverse proxy.
The role of this web server is crucial. Taking Nginx as an example, its configuration will include similarroot /www/wwwroot/anqicms.com/public;Such a directive specifies the root directory of a website. When a user requests a static resource, Nginx will first try in/public/Locate and provide these files directly under the directory. Only when Nginx cannot find the corresponding static file, will it forward the request to the AnQiCMS application for processing (for example throughproxy_passInstruction). This "separation of static and dynamic" design makes the access efficiency of static resources extremely high and does not directly depend on the running status of the AnQiCMS application to provide services.
Next, let's discuss the role of CDN (Content Delivery Network) in this process.The core function of CDN is to cache the static resources of the website (such as images, CSS, JavaScript files) on edge nodes around the world.When a user visits the website, the CDN distributes these resources to the user from the nearest edge node based on the user's geographical location, thereby accelerating the website loading speed and reducing the pressure on the source server.The working mechanism of CDN is 'origin pull'.When there are no user requested resources on the edge node, it will request the resource from the configured origin server (Origin Server, usually your web server), then cache it and provide it to the user.
Now, we return to the situation after the AnQiCMS project was stopped:
Situation one: AnQiCMS application has stopped, but the frontend web server (such as Nginx) is still running.In this case, the Go application of AnQiCMS may have stopped serving, unable to process requests for generating dynamic pages. However, since the static resource files are stored independently on the web server,/public/static/The content under the directory, and the web server itself is still running and listening for requests; it is still able to directly provide these static files.If your CDN configuration is set up correctly, the source site points to this running web server.Then, the CDN can still continue to fetch these static resources from the source and distribute them to the users.For static resources that have been cached at CDN edge nodes, users can even directly obtain them from the CDN without needing to go back to the source.This means that even if the AnQiCMS application stops, its static resource files can still be accessed normally through CDN to a large extent.Of course, if the CDN cache expires and needs to fetch from the origin, as long as the web server can still provide the file, the access will not be interrupted.
Situation two: The entire server (including the web server) has stopped running.This is the most extreme situation.If the entire physical machine or virtual machine that hosts AnQiCMS and the web server stops, the web server will be unable to provide any services, which means the CDN will not be able to source.Within the cache validity period (TTL, Time To Live)Still accessible to users. Once the cache of these resources expires, the CDN will try to pull from the source but fail, at which point, users will no longer be able to access these static resources through the CDN.
In summaryAfter the AnQiCMS project is stopped, whether the static resource files can still be accessed via CDN mainly depends on whether the web server that carries these static files is still running.Whether the web server is still running..If the web server is functioning normally and the CDN configuration is correct, these static resources can usually continue to be accessed through CDN because they are directly provided by the web server, not the AnQiCMS application.The stop of AnQiCMS application more affects the generation of dynamic content and data interaction.
Frequently Asked Questions (FAQ):
If the AnQiCMS application stops but the web server (such as Nginx) is still running, can users still access my website?In this case, users can still access the website's static resources (such as images, CSS, JS files), as well as static HTML pages directly hosted by Nginx.However, any content that requires AnQiCMS application to be dynamically generated (such as article detail pages, category list pages, search result pages, etc.) will be inaccessible. The page may display error messages or blank spaces.In simple terms, the 'shell' of the website is still there, but the 'core functions' have stopped.
How long can the static resource cache in CDN be retained? Does this mean that content can still be accessed long-term even if the source site is offline?The retention time of CDN caching depends on the resource's 'TTL' (Time To Live) setting, as well as the specific strategy of the CDN provider.The TTL is typically set in the HTTP response headers, indicating how long the CDN node should cache the resource.Once the cache expires, the CDN will try to refresh from the source.If the origin server is down for a long time, CDN will not be able to refresh the content after the cache expires, and the end user will not be able to access.Therefore, CDN can only provide "temporary" offline access capabilities, not indefinitely.
Does AnQiCMS have built-in CDN integration to automatically manage the distribution of static resources?According to the document description, AnQiCMS itself is a content management system, the core function of which is content creation, management, and publishing. It stores static resources locally }]
/public/static/In the directory, and throughTemplateUrlProvide access paths for tags.AnQiCMS does not have a complete CDN automatic integration and management mechanism to push your uploaded files to CDN.The configuration and integration of CDN is usually performed by website operators at the level of web servers, such as configuring Nginx to push static resources to CDN, or setting the origin strategy through the console of CDN providers.The terms 'using Cloudflare's CDN resources' and 'using jsdelivr's CDN resources' mentioned in the document more specifically refer to referencing the public libraries hosted on these third-party CDNs in the template, rather than AnQiCMS actively distributing its static files to the CDN.