Update README.md with SSL configuration

bitnami/nginx/README.md

@@ -119,6 +119,46 @@ services:
     volumes:
       - /path/to/nginx-persistence/vhosts:/bitnami/nginx/conf/vhosts
 ```
+## Using custom SSL certificates
+
+*NOTE:* The steps below assume that you are using a custom domain name and that you have already configured the custom domain name to point to your server.
+
+This container comes with SSL support already pre-configured and with a dummy certificate in place (`server.crt` and `server.key` files in `/bitnami/nginx/conf/bitnami/certs`). If you want to use your own certificate (`.crt`) and certificate key (`.key`) files, follow the steps below:
+
+### Step 1: Prepare your certificate files
+
+In your local computer, create a folder called `certs` and put your certificates files. Make sure you rename both files to `server.crt` and `server.key` respectively:
+
+```
+mkdir /path/to/nginx-persistence/conf/bitnami/certs -p
+cp /path/to/certfile.crt /path/to/nginx-persistence/conf/bitnami/certs/server.crt
+cp /path/to/keyfile.key  /path/to/nginx-persistence/conf/bitnami/certs/server.key
+```
+
+### Step 2: Run the Nginx image
+
+Run the Nginx image, mounting the certificates directory from your host.
+
+```
+docker run --name nginx \
+-v /path/to/nginx-persistence/conf/bitnami/certs:/bitnami/nginx/conf/bitnami/certs \
+bitnami/nginx:latest
+```
+
+or using Docker Compose:
+
+```
+version: '2'
+
+services:
+nginx:
+image: 'bitnami/nginx:latest'
+ports:
+- '80:80'
+- '443:443'
+volumes:
+- /path/to/nginx-persistence/conf/bitnami/certs:/bitnami/nginx/conf/bitnami/certs
+```
 
 ## Full configuration