How to secure WordOps backend with Let's Encrypt SSL certificate

Secure WordOps backend automatically

From the release v3.9.8.1 and onward, WordOps will automatically secure the backend on port 22222 with the first SSL certificate issued on the server. So you just have to create basic site with the arguments --letsencrypt or -le to secure the backend.

Example :

if your server hostname is properly configured (read below), you can use :

wo site create server.domain.tld -le

Then you will be able to access to the backend with the adress : https://server.domain.tld:22222

Proper server hostname configuration

Server hostname isn't only a name, it's the server public identity on the network. If your server is directly connected to internet(not behind a NAT), it should have a valid hostname.

A valid hostname should looks like : myservername.yourdomain.tld

  • myservername is the server name
  • yourdomain.tld is one of your domains

To edit hostname properly, use the command :

hostnamectl set-hostname <yourserver.hostname.tld>

To apply the new hostname, a reboot is required. The last step and the most important, you should create the proper DNS records to make the subdomain myservername.yourdomain.tld pointing to your server IP.

Using another certificate

Secure WordOps backend with the same certificate than another site

If you already have a site secured with Let's Encrypt, you just have to copy the ssl.conf file stored in /var/www/site.tld/conf/nginx.
sudo grep "ssl_" \
 /var/www/${DOMAIN_NAME}/conf/nginx/ssl.conf > /var/www/22222/conf/nginx/ssl.conf

Then reload Nginx:

wo stack restart --nginx

You should now be able to access to WordOps backend on https://site.tld:22222

Issue a new certificate to secure WordOps backend

If you prefer to issue manually a new Let's Encrypt SSL certificate, here the steps to follow:

Set your domain or subdomain as a variable:

Issue the certificate --issue -d $DOMAIN_NAME -k ec-384 -w /var/www/html

If the certificate as issued successfully, create a directory to store the certificate

sudo mkdir -p /etc/letsencrypt/live/${DOMAIN_NAME}

Install the certificate --install-cert -d $DOMAIN_NAME --ecc \
--cert-file /etc/letsencrypt/live/$DOMAIN_NAME/cert.pem \
--key-file /etc/letsencrypt/live/$DOMAIN_NAME/key.pem \
--fullchain-file /etc/letsencrypt/live/$DOMAIN_NAME/fullchain.pem \
--ca-file /etc/letsencrypt/live/$DOMAIN_NAME/ca.pem \
--reloadcmd "nginx -t && systemctl restart nginx.service"

Create the Nginx configuration

cat <<EOF >/var/www/22222/conf/nginx/ssl.conf
    ssl_certificate /etc/letsencrypt/live/$DOMAIN_NAME/fullchain.pem;
    ssl_certificate_key     /etc/letsencrypt/live/$DOMAIN_NAME/key.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/$DOMAIN_NAME/ca.pem;

Then reload nginx

wo stack restart --nginx