This recipe showed you how to quickly run Rancher Server to manage your Kubernetes clusters.

In step 1, we used a single node installation using a default self-signed certificate method. For security purposes, SSL is required to interact with the clusters. Therefore, a certificate is required. 

If you prefer to use your own certificate signed by a recognized CA instead, you can use the following command and provide the path to your certificates to mount them in your container by replacing the FULLCHAIN.pem and PRIVATEKEY.pem files with your signed certificates:

$ docker run -d --restart=unless-stopped 
 -p 80:80 -p 443:443 
 -v /<CERTDIRECTORY>/<FULLCHAIN.pem>:/etc/rancher/ssl/cert.pem 
 -v /<CERTDIRECTORY>/<PRIVATEKEY.pem>:/etc/rancher/ssl/key.pem 
 rancher/rancher:latest --no-cacerts

Using a recognized certificate will eliminate the security warning on the login page.