diff --git a/README.md b/README.md
index ee1e0fa..dfdc69a 100644
--- a/README.md
+++ b/README.md
@@ -24,4 +24,15 @@ SSSL_DNS_DEFAULT_ADDRESS=127.0.0.1
 SSSL_DNS_MAP_conntest.nintendowifi.net=127.0.0.1
 SSSL_DNS_MAP_account.nintendo.net=127.0.0.1
 SSSL_DNS_MAP_discovery.olv.nintendo.net=127.0.0.1
-```
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+```
+
+## Docker
+The provided `Dockerfile` creates an image which runs both the DNS server and a custom build of nginx with TLS 1.0/1.1, and legacy SSL ciphers, enabled, as these are required for the Wii U. To build the image:
+
+1. Use [SSSL](https://github.com/PretendoNetwork/SSSL) to create your patched SSL certficiates.
+2. Copy the `ssl-cert-private-key.pem` from SSSL file to `docker/private.key` (or modify the private key name in step 4) in SSSL-DNS.
+3. Copy the `cert-chain.pem` from SSSL file to `docker/ca.pem` (or modify the certificate chain name in step 4) in SSSL-DNS.
+4. Modify `docker/nginx.conf` to your liking. This will be used as the nginx default configuration, *not* a separate site config. Add any additional hostnames you may need.
+5. Create a `.env` file in the same directory as the `Dockerfile` following the above guide.
+6. `docker build -t IMAGE_NAME .`
+7. Create a container with the image, exposing ports 80, 443 and the DNS server port (by default the Wii U only supports the default port 53)
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