Update traffic-management/ingress/secure-ingress/index.md adding information about separarte CA secret support for TLS Secret (#16333)

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Dmitry Chepurovskiy 2025-03-24 04:39:46 +04:00 committed by GitHub
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Istio supports reading a few different Secret formats, to support integration with various tools such as [cert-manager](/docs/ops/integrations/certmanager/):
* A TLS Secret with keys `tls.key` and `tls.crt`, as described above. For mutual TLS, a `ca.crt` key can be used.
* A TLS Secret with keys `tls.key` and `tls.crt`, as described above. For mutual TLS, a separate generic Secret named `<secret>-cacert`, with a `cacert` key. For example, `httpbin-credential` has `tls.key` and `tls.crt`, and `httpbin-credential-cacert` has `cacert`.
* A generic Secret with keys `key` and `cert`. For mutual TLS, a `cacert` key can be used.
* A generic Secret with keys `key` and `cert`. For mutual TLS, a separate generic Secret named `<secret>-cacert`, with a `cacert` key. For example, `httpbin-credential` has `key` and `cert`, and `httpbin-credential-cacert` has `cacert`.
* The `cacert` key value can be a CA bundle consisting of concatenated individual CA certificates.