How to Use Caddy
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Caddy is simpler compared to Nginx and very convenient for server proxying, especially for obtaining HTTPS certificates.
Here are some common operations recorded.
Installation
It is recommended to use a package manager for installation, such as on Mac:
brew install caddy
On CentOS7:
yum install yum-plugin-copr
yum copr enable @caddy/caddy
yum install caddy
On Ubuntu:
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https curl
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy
For installation on other OS, see https://caddyserver.com/docs/install#install
Common Commands
# Start service
caddy start --config ./Caddyfile
# Format config file
caddy fmt --overwrite
# Stop service
caddy stop
Examples
Reverse Proxy for Local Service
127.0.0.1:3001 {
route /xyz* {
uri strip_prefix /xyz
reverse_proxy * 127.0.0.1:9000
}
}
Reverse Proxy for External Service
example.com {
reverse_proxy /v1/chat/completions https://api.openai.com {
header_up Host {upstream_hostport}
}
}
Serve Static Assets
1991421.cn {
root * /var/www/blog/public
file_server
}
At the end
That’s all I know. I recommend learning from the official doc for more information on how to use it.
