141 lines
4.2 KiB
Nix
141 lines
4.2 KiB
Nix
# The certificate for the ACME service is exported as:
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#
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# config.test-support.acme.caCert
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#
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# This value can be used inside the configuration of other test nodes to inject
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# the test certificate into security.pki.certificateFiles or into package
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# overlays.
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#
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# Another value that's needed if you don't use a custom resolver (see below for
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# notes on that) is to add the acme node as a nameserver to every node
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# that needs to acquire certificates using ACME, because otherwise the API host
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# for acme.test can't be resolved.
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#
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# A configuration example of a full node setup using this would be this:
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#
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# {
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# acme = import ./common/acme/server;
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#
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# example = { nodes, ... }: {
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# networking.nameservers = [
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# nodes.acme.networking.primaryIPAddress
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# ];
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# security.pki.certificateFiles = [
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# nodes.acme.test-support.acme.caCert
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# ];
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# };
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# }
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#
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# By default, this module runs a local resolver, generated using resolver.nix
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# from the parent directory to automatically discover all zones in the network.
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#
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# If you do not want this and want to use your own resolver, you can just
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# override networking.nameservers like this:
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#
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# {
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# acme = { nodes, lib, ... }: {
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# imports = [ ./common/acme/server ];
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# networking.nameservers = lib.mkForce [
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# nodes.myresolver.networking.primaryIPAddress
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# ];
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# };
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#
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# myresolver = ...;
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# }
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#
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# Keep in mind, that currently only _one_ resolver is supported, if you have
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# more than one resolver in networking.nameservers only the first one will be
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# used.
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#
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# Also make sure that whenever you use a resolver from a different test node
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# that it has to be started _before_ the ACME service.
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{ config, pkgs, lib, ... }:
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let
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testCerts = import ./snakeoil-certs.nix;
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domain = testCerts.domain;
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resolver = let
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message = "You need to define a resolver for the acme test module.";
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firstNS = lib.head config.networking.nameservers;
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in if config.networking.nameservers == [] then throw message else firstNS;
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pebbleConf.pebble = {
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listenAddress = "0.0.0.0:443";
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managementListenAddress = "0.0.0.0:15000";
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# These certs and keys are used for the Web Front End (WFE)
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certificate = testCerts.${domain}.cert;
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privateKey = testCerts.${domain}.key;
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httpPort = 80;
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tlsPort = 443;
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ocspResponderURL = "http://${domain}:4002";
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strict = true;
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};
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pebbleConfFile = pkgs.writeText "pebble.conf" (builtins.toJSON pebbleConf);
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in {
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imports = [ ../../resolver.nix ];
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options.test-support.acme = with lib; {
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caDomain = mkOption {
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type = types.str;
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readOnly = true;
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default = domain;
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description = lib.mdDoc ''
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A domain name to use with the `nodes` attribute to
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identify the CA server.
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'';
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};
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caCert = mkOption {
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type = types.path;
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readOnly = true;
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default = testCerts.ca.cert;
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description = lib.mdDoc ''
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A certificate file to use with the `nodes` attribute to
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inject the test CA certificate used in the ACME server into
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{option}`security.pki.certificateFiles`.
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'';
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};
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};
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config = {
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test-support = {
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resolver.enable = let
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isLocalResolver = config.networking.nameservers == [ "127.0.0.1" ];
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in lib.mkOverride 900 isLocalResolver;
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};
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# This has priority 140, because modules/testing/test-instrumentation.nix
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# already overrides this with priority 150.
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networking.nameservers = lib.mkOverride 140 [ "127.0.0.1" ];
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networking.firewall.allowedTCPPorts = [ 80 443 15000 4002 ];
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networking.extraHosts = ''
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127.0.0.1 ${domain}
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${config.networking.primaryIPAddress} ${domain}
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'';
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systemd.services = {
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pebble = {
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enable = true;
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description = "Pebble ACME server";
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wantedBy = [ "network.target" ];
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environment = {
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# We're not testing lego, we're just testing our configuration.
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# No need to sleep.
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PEBBLE_VA_NOSLEEP = "1";
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};
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serviceConfig = {
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RuntimeDirectory = "pebble";
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WorkingDirectory = "/run/pebble";
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# Required to bind on privileged ports.
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AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
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ExecStart = "${pkgs.pebble}/bin/pebble -config ${pebbleConfFile}";
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};
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};
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};
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};
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}
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