This does not actually change how the informers work. This also adds a partial metadata client to root context
Signed-off-by: irbekrm <irbekrm@gmail.com>
Previously, the Vault issuer was only able to use a Secret in order to
use the "Kubernetes authentication" method. The downside to this service
account Secret token is that it has the default JWT iss
"kubernetes/serviceaccount" (along with the fact that the token is not
bound to a particular pod and has no expiry).
With the new serviceAccountRef, cert-manager now requests the token on
behalf of the pod in order to authenticate with Vault.
Signed-off-by: Maël Valais <mael@vls.dev>
