matrix-docker-ansible-deploy/examples/host-vars.yml

# This is something which is provided to Let's Encrypt
# when retrieving the SSL certificates for `<your-domain>`.
#
# In case SSL renewal fails at some point, you'll also get
# an email notification there.
#
# Example value: someone@example.com
host_specific_ssl_support_email: YOUR_EMAIL_ADDRESS_HERE

# This is your bare domain name (`<your-domain`).
#
# Note: the server specified here is not touched.
#
# This playbook only installs to `matrix.<your-domain>`,
# but it nevertheless requires to know the bare domain name
# (for configuration purposes).
#
# Example value: example.com
host_specific_hostname_identity: YOUR_BARE_DOMAIN_NAME_HERE