Previously, we talked about how to implement a simple Caddy plugin. In this post, we’ll talk about some of the more powerful features we can use. Registering New Types of Network Sometimes, we may want to securely expose a socket on a machine to a remote machine. We can set up an SSH tunnel to do so. The following example from the official documents shows how to set up an HTTP server this way....
Previous post discusses the basics of a Caddy plugin and shows an example of a bare-bone plugin. In this post we implement a Caddy module that listens to a TCP socket and replies Hello world to every connected client. Plugin Considerations Before we begin, we need to think about what our plugin can do and how its behavior can be customized by its user. Depending on the function, the full configuration may be complex, but we should provide a reasonable default to the user....
Caddy is a server best known for its auto HTTPS features. It manages TLS certificates automatically without any human intervention. It’s also quite extensible, there are some built-in namespaces that define how we can implement some interfaces to add new functionalities to Caddy. First, let’s see how Caddy works. Caddy Architecture Caddy has three parts: a commandline interface, a core and module system. Command Interface It is how Caddy interprets commandline arguments to run some common tasks such as printing help information and running a simple reverse proxy or a file server....
Caddy has supported http3 for a long time. First it’s an experimental feature, then in v2.6.0 it is on by default. There were some bugs, but I believe with the latest commits, most of them are gone. Problems Socket Reuse To improve efficiency, caddy tries to reuse sockets between configuration reloads. For Windows systems caddy has to wrap the underlying socket and set deadlines to terminate old use of the socket....
Hugo is a static site generator. However sometimes we want to serve dynamic contents. We can embed javascript to achieve what we want, but why not use templates when they’re more convenient? Caddy Template Engine Caddy comes with a powerful template engine that is based on golang standard library. Some of the sites (including Caddy’s official website) are built this way. The list of template functions/actions can be viewed here. In addition, caddy also support all Sprig functions....