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nixos/nginx: ensure TLS OCSP stapling works out of the box with LE

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The recommended TLS configuration comes with `ssl_stapling on` and
`ssl_stapling_verify on`. However, this last directive also requires
the use of `ssl_trusted_certificate` to verify the received answer.
When using `enableACME` or similar, we can help the user by providing
the correct value for the directive.

The result can be tested with:

    openssl s_client -connect web.example.com:443 -status 2> /dev/null

Without OCSP stapling, we get:

    OCSP response: no response sent

After this change, we get:

    OCSP Response Data:
        OCSP Response Status: successful (0x0)
        Response Type: Basic OCSP Response
        Version: 1 (0x0)
        Responder Id: C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3
        Produced At: Aug 30 20:46:00 2018 GMT
This commit is contained in:
Vincent Bernat 2018-08-30 22:33:56 +02:00
parent 2a606200bc
commit 1251b34b5b
2 changed files with 12 additions and 0 deletions
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5
nixos/modules/services/web-servers/nginx/default.nix
View file

@ -16,9 +16,11 @@ let
} // (optionalAttrs vhostConfig.enableACME {
sslCertificate = "${acmeDirectory}/${serverName}/fullchain.pem";
sslCertificateKey = "${acmeDirectory}/${serverName}/key.pem";
sslTrustedCertificate = "${acmeDirectory}/${serverName}/full.pem";
}) // (optionalAttrs (vhostConfig.useACMEHost != null) {
sslCertificate = "${acmeDirectory}/${vhostConfig.useACMEHost}/fullchain.pem";
sslCertificateKey = "${acmeDirectory}/${vhostConfig.useACMEHost}/key.pem";
sslTrustedCertificate = "${acmeDirectory}/${vhostConfig.useACMEHost}/full.pem";
})
) cfg.virtualHosts;
enableIPv6 = config.networking.enableIPv6;
@ -228,6 +230,9 @@ let
ssl_certificate ${vhost.sslCertificate};
ssl_certificate_key ${vhost.sslCertificateKey};
''}
${optionalString (hasSSL && vhost.sslTrustedCertificate != null) ''
ssl_trusted_certificate ${vhost.sslTrustedCertificate};
''}
${optionalString (vhost.basicAuthFile != null || vhost.basicAuth != {}) ''
auth_basic secured;

7
nixos/modules/services/web-servers/nginx/vhost-options.nix
View file

@ -129,6 +129,13 @@ with lib;
description = "Path to server SSL certificate key.";
};
sslTrustedCertificate = mkOption {
type = types.path;
default = null;
example = "/var/root.cert";
description = "Path to root SSL certificate for stapling and client certificates.";
};
http2 = mkOption {
type = types.bool;
default = true;