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maintenance/hydra/modules/sysadmin/dns.scm
Ricardo Wurmus 64cb4ae13e
hydra: dns: Add monitor sub-domain.
* hydra/modules/sysadmin/dns.scm (guix.gnu.org.zone): Add entry for
monitor.guix.gnu.org.
2020-03-15 15:42:15 +01:00

113 lines
4.6 KiB
Scheme

;;; GNU Guix system administration tools.
;;;
;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; This program is free software: you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
(define-module (sysadmin dns)
#:use-module (gnu services dns)
#:export (guix.gnu.org-zone
berlin-ip4
bayfront-ip4))
;;; Commentary:
;;;
;;; DNS configuration.
;;;
;;; For any change in the zone (an IP, a new record, ...), increment the
;;; the serial in the zone configuration. This is very important for
;;; changes to be taken into account.
;;;
;;; Remember some DNS rules: no other kind of record for a CNAME record.
;;; Always associate a name that resolves to an A or an AAAA record
;;; immediately (it cannot be a CNAME). Same for MX.
;;;
;;; Remember that data is relative to the root of this zone when it
;;; reference another domain name, unless it ends with a dot.
;;;
;;; Ex: "ns1.guix.gnu.org" actually means "ns1.guix.gnu.org.guix.gnu.org"
;;; whereas "ns1.guix.gnu.org." means what it says.
;;;
;;; Code:
;; Define some IP addresses for easier use later
(define gnu.org-ip4 "209.51.188.148")
(define gnu.org-ip6 "2001:470:142:3::a")
(define hydra-ip4 "18.4.89.46")
(define bayfront-ip4 "185.233.100.56")
(define berlin-ip4 "141.80.181.40")
(define milano-guix-1-ip4 "159.149.133.203")
;; The SOA MNAME and one NS record must always be consistent.
(define primary-ns "ns1.gnu.org.")
(define-zone-entries guix.gnu.org.zone
;; Name TTL Class Type Data
("@" "" "IN" "A" berlin-ip4)
("@" "" "IN" "NS" primary-ns)
("@" "" "IN" "NS" "ns2.gnu.org.")
("@" "" "IN" "NS" "ns3.gnu.org.")
("@" "" "IN" "NS" "ns4.gnu.org.")
("ns1" "" "IN" "A" bayfront-ip4)
("ns2" "" "IN" "A" berlin-ip4)
;; CAA records. See:
;; https://tools.ietf.org/html/rfc6844
;; https://letsencrypt.org/docs/caa/
;; https://docs.aws.amazon.com/acm/latest/userguide/setup-caa.html
;;
;; The gnu.org domain defines a CAA record which only includes
;; letsencrypt. To allow Amazon ACM to create a TLS certificate for
;; ci.guix.gnu.org, we need to override this for our zone.
("@" "" "IN" "CAA" "0 issue \"letsencrypt.org\"")
;; The ACM docs suggest any one of these records may be sufficient,
;; but to avoid any possibility of problems, let's include all four.
("@" "" "IN" "CAA" "0 issue \"amazon.com\"")
("@" "" "IN" "CAA" "0 issue \"amazontrust.com\"")
("@" "" "IN" "CAA" "0 issue \"awstrust.com\"")
("@" "" "IN" "CAA" "0 issue \"amazonaws.com\"")
;; We might want to create wildcard certificates in the future.
("@" "" "IN" "CAA" "0 issuewild \"letsencrypt.org\"")
("@" "" "IN" "CAA" "0 issuewild \"amazon.com\"")
("@" "" "IN" "CAA" "0 issuewild \"amazontrust.com\"")
("@" "" "IN" "CAA" "0 issuewild \"awstrust.com\"")
("@" "" "IN" "CAA" "0 issuewild \"amazonaws.com\"")
;; Machines.
("hydra" "" "IN" "A" hydra-ip4)
("berlin" "" "IN" "A" berlin-ip4)
("bayfront" "" "IN" "A" bayfront-ip4)
;; Services.
("issues" "" "IN" "A" berlin-ip4)
("monitor" "" "IN" "A" berlin-ip4)
("logs" "" "IN" "A" bayfront-ip4)
("ci" "" "IN" "A" berlin-ip4)
("data" "" "IN" "A" "78.47.68.4")
;; This record is required in order to prove to Amazon ACM that we
;; own the domain. As long as it exists, ACM will automatically
;; renew the TLS certificate for the CloudFront distribution we use
;; as the CDN for ci.guix.gnu.org. See cdn/README.org for details.
("_82c0b5947777eb0bee604d5d2061d85f.ci" "" "IN" "CNAME" "_9023f91de522527b4b669b841e4822fe.ltfvzjuylp.acm-validations.aws."))
(define guix.gnu.org-zone
(knot-zone-configuration
(domain "guix.gnu.org")
(zone (zone-file
(origin "guix.gnu.org")
(ns primary-ns)
(entries guix.gnu.org.zone)
(serial 2020022800)))))