This change adds SAML2 support through the use of a new keystone SAML
integrator charm (keystone-saml-k8s).
Needed changes have also been made in the keystone charm to make use of
the new relation.
A new option has also been added to keystone-k8s through which a secret
can be specified which should contain the x509 certificate an the
corresponding key from which it was derived, used to generate the keystone
SP metadata file.
Change-Id: Id9b6ab2a51891ac378a2cb406dbe3a456bc24fc4
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
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