Configure Minio with Caddy

1 min read

A step-by-step guide to setting up Minio object storage with Caddy reverse proxy, including configuration challenges and solutions for self-hosting.

caddyconfigurationdevopsminioreverse-proxyself-hosting

Inspired by https://min.io/docs/minio/linux/integrations/setup-nginx-proxy-with-minio.html, I wanted to configure a Minio server with Caddy Reverse Proxy in front. For some reason, the configuration was more fickle than I expected, so here is the final result for reference.

Assumptions

  • Your minio server is at https://minio.example.com
  • Your minio console will be at https://minio.example.com/minio/ui/

Environment Variables

Make sure to set MINIO_BROWSER_REDIRECT_URL to the correct URL including the trailing slash:

MINIO_BROWSER_REDIRECT_URL = 'https://minio.example.com/minio/ui/'

Caddyfile

The robots.txt and favicon.ico handlers are optional—they're just left as examples of how you could handle these requests.

minio.example.com {
	handle /minio/ui/* {
		uri strip_prefix /minio/ui
		reverse_proxy localhost:9001
	}

	handle /robots.txt {
		respond "User-agent: *
Disallow: /"
	}

	handle /favicon.ico {
		respond 404
	}

	handle /* {
		reverse_proxy localhost:9000
	}
}