Interfaces/endpoints
The charm supports tls-certificates interface.
Adding a relation is accomplished with juju relate (or juju integrate for Juju 3.x) via endpoint database. Example:
# Deploy TLS Certificates Operator
juju deploy tls-certificates-operator
# Deploy the relevant application charms
juju deploy <your-charm>
# Relate TLS Certificates Operator with your application
juju relate tls-certificates-operator <your-charm>
# Check established relation (using tls-certificates interface):
juju status --relations
# Example of the properly established relation:
Relation provider Requirer Interface Type
tls-certificates-operator:certificates <your-charm>:certificates tls-certificates regular