nixpkgs/nixos/tests/nginx-proxyprotocol/generate-certs.nix

# 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,
  runCommandCC ? pkgs.runCommandCC,
}:
let
  conf = import ./snakeoil-certs.nix;
  domain = conf.domain;
  domainSanitized = pkgs.lib.replaceStrings [ "*" ] [ "_" ] domain;
in
runCommandCC "generate-tests-certs"
  {
    buildInputs = [
      (minica.overrideAttrs (old: {
        postPatch = ''
          sed -i 's_NotAfter: time.Now().AddDate(2, 0, 30),_NotAfter: time.Now().AddDate(20, 0, 0),_' main.go
        '';
      }))
    ];

  }
  ''
    minica \
      --ca-key ca.key.pem \
      --ca-cert ca.cert.pem \
      --domains "${domain}"

    mkdir -p $out
    mv ca.*.pem $out/
    mv ${domainSanitized}/key.pem $out/${domainSanitized}.key.pem
    mv ${domainSanitized}/cert.pem $out/${domainSanitized}.cert.pem
  ''