--- apiVersion: traefik.containo.us/v1alpha1 kind: TLSOption metadata: name: default namespace: default spec: minVersion: VersionTLS12 cipherSuites: - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 # TLS 1.2 - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 # TLS 1.2 - TLS_AES_256_GCM_SHA384 # TLS 1.3 - TLS_CHACHA20_POLY1305_SHA256 # TLS 1.3 curvePreferences: - CurveP521 - CurveP384 sniStrict: true