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page(about): details on website architecture

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Ming Di Leom 2023-02-26 11:10:54 +00:00
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@ -43,7 +43,9 @@ updated: 2022-08-01
![Architecture behind mdleom.com](about/website-architecture.png)
mdleom.com is hosted on a [VPS](https://en.wikipedia.org/wiki/Virtual_private_server) with Cloudflare CDN. The OS is [NixOS](https://nixos.org/) and the web server is [Caddy](https://caddyserver.com/). The web server functions as a file server with ability to failover to mirrors (Cloudflare Pages, Netlify and GitHub Pages). It serves content via cloudflared that connects to the CDN network using an outbound tunnel. Blog content is deployed from a [GitLab repository](https://gitlab.com/curben/blog) which hosts the source. The repo also hosts [images and attachments](https://gitlab.com/curben/blog/-/tree/site); images are resized on-the-fly using [Statically](https://statically.io/).
mdleom.com is served from two identical VMs hosted in a cloud provider. The VMs are using [NixOS](https://nixos.org/) and [Caddy](https://caddyserver.com/) web server. The web server functions as a file server to serve static website. Each VM has cloudflared to connect the web server to Cloudflare CDN using an outbound tunnel. Each cloudflared instance acts as a [replica](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/deploy-cloudflared-replicas/) that connects to the same tunnel to provide failover.
The web server is able to failover to mirrors ([Cloudflare Pages](https://curben.pages.dev), [Netlify](https://curben.netlify.app), [GitLab Pages](https://curben.gitlab.io) and [GitHub Pages](https://curbengh.github.io)). Blog content is deployed from a [GitLab repository](https://gitlab.com/curben/blog) which hosts the source. The source is compiled to static site using [Hexo](https://hexo.io). The repo also hosts [images and attachments](https://gitlab.com/curben/blog/-/tree/site); images are resized on-the-fly using [Statically](https://statically.io/).
More details are available in the following series of posts: