nixos/tests/acme: Hard code test certificates

The added README.md explains why this has been done.
gstqt5
Lucas Savva 2020-10-22 14:06:19 +01:00
parent 89d134b3fd
commit dad06fb922
No known key found for this signature in database
GPG Key ID: F9CE6D3DCDC78F2D
8 changed files with 148 additions and 32 deletions

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# Fake Certificate Authority for ACME testing
This will set up a test node running [pebble](https://github.com/letsencrypt/pebble)
to serve ACME certificate requests.
## "Snake oil" certs
The snake oil certs are hard coded into the repo for reasons explained [here](https://github.com/NixOS/nixpkgs/pull/91121#discussion_r505410235).
The root of the issue is that Nix will hash the derivation based on the arguments
to mkDerivation, not the output. [Minica](https://github.com/jsha/minica) will
always generate a random certificate even if the arguments are unchanged. As a
result, it's possible to end up in a situation where the cached and local
generated certs mismatch and cause issues with testing.
To generate new certificates, run the following commands:
```bash
nix-build generate-certs.nix
cp result/* .
rm result
```

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-----BEGIN CERTIFICATE-----
MIIDLDCCAhSgAwIBAgIIRDAN3FHH//IwDQYJKoZIhvcNAQELBQAwIDEeMBwGA1UE
AxMVbWluaWNhIHJvb3QgY2EgNzg3NDZmMB4XDTIwMTAyMTEzMjgzNloXDTIyMTEy
MDEzMjgzNlowFDESMBAGA1UEAxMJYWNtZS50ZXN0MIIBIjANBgkqhkiG9w0BAQEF
AAOCAQ8AMIIBCgKCAQEAo8XjMVUaljcaqQ5MFhfPuQgSwdyXEUbpSHz+5yPkE0h9
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-----END CERTIFICATE-----

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-----BEGIN RSA PRIVATE KEY-----
MIIEowIBAAKCAQEAo8XjMVUaljcaqQ5MFhfPuQgSwdyXEUbpSHz+5yPkE0h9Z4Xu
5BJF1Oq7h5ggCtadVsIspiY6Jm6aWDOjlh4myzW5UNBNUG3OPEk50vmmHFeHpImH
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FCWo4gyAnniry7tx9dVNgmHmbjEHuQnf8AC1r3dibRCjvJWUiQ8H
-----END RSA PRIVATE KEY-----

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@ -0,0 +1,20 @@
-----BEGIN CERTIFICATE-----
MIIDSzCCAjOgAwIBAgIIeHRvRrNvbGQwDQYJKoZIhvcNAQELBQAwIDEeMBwGA1UE
AxMVbWluaWNhIHJvb3QgY2EgNzg3NDZmMCAXDTIwMTAyMTEzMjgzNloYDzIxMjAx
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-----END CERTIFICATE-----

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@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----
MIIEowIBAAKCAQEAqzU81SwyTirRmBi1PfBBHCyqbLVxwiwuhueCymxHFPNH5/gK
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oU47gC89QhUyWSd6vvr2z2NG9C3cACxe4dhDSHQcE4nHSldzCKv2
-----END RSA PRIVATE KEY-----

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@ -51,10 +51,7 @@
# that it has to be started _before_ the ACME service.
{ config, pkgs, lib, ... }:
let
testCerts = import ./snakeoil-certs.nix {
minica = pkgs.minica;
mkDerivation = pkgs.stdenv.mkDerivation;
};
testCerts = import ./snakeoil-certs.nix;
domain = testCerts.domain;
resolver = let

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# Minica can provide a CA key and cert, plus a key
# and cert for our fake CA server's Web Front End (WFE).
{
pkgs ? import <nixpkgs> {},
minica ? pkgs.minica,
mkDerivation ? pkgs.stdenv.mkDerivation
}:
let
conf = import ./snakeoil-certs.nix;
domain = conf.domain;
in mkDerivation {
name = "test-certs";
buildInputs = [ minica ];
phases = [ "buildPhase" "installPhase" ];
buildPhase = ''
minica \
--ca-key ca.key.pem \
--ca-cert ca.cert.pem \
--domains ${domain}
'';
installPhase = ''
mkdir -p $out
mv ca.*.pem $out/
mv ${domain}/key.pem $out/${domain}.key.pem
mv ${domain}/cert.pem $out/${domain}.cert.pem
'';
}

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@ -1,37 +1,13 @@
# Minica can provide a CA key and cert, plus a key
# and cert for our fake CA server's Web Front End (WFE).
{ minica, mkDerivation }:
let
domain = "acme.test";
selfSignedCertData = mkDerivation {
name = "test-certs";
buildInputs = [ minica ];
phases = [ "buildPhase" "installPhase" ];
buildPhase = ''
mkdir ca
minica \
--ca-key ca/key.pem \
--ca-cert ca/cert.pem \
--domains ${domain}
chmod 600 ca/*
chmod 640 ${domain}/*.pem
'';
installPhase = ''
mkdir -p $out
mv ${domain} ca $out/
'';
};
in {
inherit domain;
ca = {
cert = "${selfSignedCertData}/ca/cert.pem";
key = "${selfSignedCertData}/ca/key.pem";
cert = ./ca.cert.pem;
key = ./ca.key.pem;
};
"${domain}" = {
cert = "${selfSignedCertData}/${domain}/cert.pem";
key = "${selfSignedCertData}/${domain}/key.pem";
cert = ./. + "/${domain}.cert.pem";
key = ./. + "/${domain}.key.pem";
};
}