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In order to support wildcard certificates, TLS certificates for a
*.somedomain.com, which are stored in a namespace controlled by the cluster administrator, Contour supports a facility known as TLS Certificate Delegation.
This facility allows the owner of a TLS certificate to delegate, for the purposes of referencing the TLS certificate, permission to Contour to read the Secret object from another namespace.
Delegation works for both HTTPProxy and Ingress resources.
TLSCertificateDelegation resource defines a set of
delegations in the
Each delegation references a
secretName from the namespace where the
TLSCertificateDelegation is created as well as describing a set of
targetNamespaces in which the certificate can be referenced.
If all namespaces should be able to reference the secret, then set
"*" as the value of
targetNamespaces (see example below).
apiVersion: projectcontour.io/v1 kind: TLSCertificateDelegation metadata: name: example-com-wildcard namespace: www-admin spec: delegations: - secretName: example-com-wildcard targetNamespaces: - example-com - secretName: another-com-wildcard targetNamespaces: - "*" --- apiVersion: projectcontour.io/v1 kind: HTTPProxy metadata: name: www namespace: example-com spec: virtualhost: fqdn: foo2.bar.com tls: secretName: www-admin/example-com-wildcard routes: - services: - name: s1 port: 80
In this example, the permission for Contour to reference the Secret
example-com-wildcard in the
admin namespace has been delegated to HTTPProxy objects in the
Also, the permission for Contour to reference the Secret
another-com-wildcard from all namespaces has been delegated to all HTTPProxy objects in the cluster.