a3aa3e6935
This adds additional SSL/TLS config to specify the acceptable TLS version, cipher suites, session cache, etc. Values are currently based on the Mozilla Foundation's recommendations for intermediate compatibility: https://wiki.mozilla.org/Security/Server_Side_TLS We will manage NGINX configuration snippets as a K8s ConfigMap so that they can be included in server blocks as-needed.
25 lines
1012 B
YAML
25 lines
1012 B
YAML
---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: nginx-snippets
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namespace: atat
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data:
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ssl.conf: |-
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# Guard against HTTPS -> HTTP downgrade
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add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; always";
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# Set SSL protocols, ciphers, and related options
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ssl_protocols TLSv1.3 TLSv1.2;
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ssl_ciphers 'TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384'
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ssl_prefer_server_ciphers on;
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ssl_ecdh_curve X25519:prime256v1:secp384r1;
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ssl_dhparam /etc/ssl/dhparam.pem;
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# SSL session options
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ssl_session_timeout 4h;
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ssl_session_cache shared:SSL:10m; # 1mb = ~4000 sessions
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ssl_session_tickets off;
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# OCSP Stapling
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ssl_stapling on;
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ssl_stapling_verify on;
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resolver 8.8.8.8 8.8.4.4;
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