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781f0cf2ec
The recent custom endpoint addition allows us to directly point certbot to the custom Pebble directory endpoint. Thanks to that, we can ditch the Pebble patch we were using so far; making this test maintenance easier.
136 lines
4.2 KiB
Nix
136 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.letsencrypt.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 snakeoil 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 letsencrypt 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 letsencrypt.org 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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# letsencrypt = import ./common/letsencrypt;
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#
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# example = { nodes, ... }: {
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# networking.nameservers = [
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# nodes.letsencrypt.config.networking.primaryIPAddress
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# ];
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# security.pki.certificateFiles = [
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# nodes.letsencrypt.config.test-support.letsencrypt.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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# letsencrypt = { nodes, ... }: {
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# imports = [ ./common/letsencrypt ];
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# networking.nameservers = [
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# nodes.myresolver.config.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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snakeOilCerts = import ./snakeoil-certs.nix;
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wfeDomain = "acme-v02.api.letsencrypt.org";
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wfeCertFile = snakeOilCerts.${wfeDomain}.cert;
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wfeKeyFile = snakeOilCerts.${wfeDomain}.key;
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siteDomain = "letsencrypt.org";
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siteCertFile = snakeOilCerts.${siteDomain}.cert;
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siteKeyFile = snakeOilCerts.${siteDomain}.key;
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pebble = pkgs.pebble;
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resolver = let
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message = "You need to define a resolver for the letsencrypt 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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certificate = snakeOilCerts.${wfeDomain}.cert;
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privateKey = snakeOilCerts.${wfeDomain}.key;
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httpPort = 80;
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tlsPort = 443;
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ocspResponderURL = "http://0.0.0.0:4002";
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};
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pebbleConfFile = pkgs.writeText "pebble.conf" (builtins.toJSON pebbleConf);
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pebbleDataDir = "/root/pebble";
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in {
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imports = [ ../resolver.nix ];
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options.test-support.letsencrypt.caCert = lib.mkOption {
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type = lib.types.path;
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description = ''
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A certificate file to use with the <literal>nodes</literal> attribute to
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inject the snakeoil CA certificate used in the ACME server into
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<option>security.pki.certificateFiles</option>.
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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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letsencrypt.caCert = snakeOilCerts.ca.cert;
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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.enable = false;
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networking.extraHosts = ''
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127.0.0.1 ${wfeDomain}
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${config.networking.primaryIPAddress} ${wfeDomain} ${siteDomain}
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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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requires = [ ];
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wantedBy = [ "network.target" ];
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preStart = ''
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mkdir ${pebbleDataDir}
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'';
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script = ''
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cd ${pebbleDataDir}
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${pebble}/bin/pebble -config ${pebbleConfFile}
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'';
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serviceConfig = {
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# Required to bind on privileged ports.
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User = "root";
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Group = "root";
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};
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};
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};
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};
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}
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