Add post about caddy

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Yash Karandikar 2022-06-24 22:22:44 +05:30
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title = "Why I switched to Caddy"
date = "2022-06-24"
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A while back, I switched over from `nginx` to `caddy` to serve HTTP(S) websites.
## What does caddy do differently?
One of the major pains for anyone hosting a website is HTTPS. You have to generate and maintain valid certificates for each and every subdomain of your site, and this can be a bit tedious to do manually.
Caddy eases that pain. With just three lines of configuration, caddy automatically requests valid certificates from its certificate authority and sets up a job to renew them when they expire. Gone are the days of `certbot` and messing with filesystem permissions. It Just Works™.
Another benefit is the ease of configuration. With nginx, my configuration was around *400* lines of code, and most of this was whitespace or boilerplate.
With caddy, though, I took my configuration down to only *37* lines of code! That's almost a 90% reduction.
For example, a simple reverse-proxy + HTTPS setup with nginx looks like this:
```
server {
server_name etc.karx.xyz;
location / {
proxy_pass http://192.168.1.184;
proxy_set_header HOST $host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection upgrade;
proxy_set_header Accept-Encoding gzip;
}
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/karx.xyz/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/karx.xyz/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
```
With caddy, I took this monolith configuration down to *just three lines*:
```caddyfile
etc.karx.xyz {
reverse_proxy 192.168.1.184:80
}
```
All told, caddy is a game changing software that will surely be useful to anyone who wants to host a website quickly and pain-free.