From c5f641cabfd8217fd1255d5eff578da8acfddeca Mon Sep 17 00:00:00 2001 From: Gonne Date: Sun, 31 Mar 2024 20:28:40 +0200 Subject: [PATCH] Mailman backups --- nixos/machines/lobon/backupKey.yaml | 39 ++++++++++++++++++++++++++ nixos/machines/lobon/configuration.nix | 15 ++++++++++ nixos/modules/borgbackup.nix | 7 +++++ nixos/modules/mailman.nix | 27 ++++++++++++++---- 4 files changed, 82 insertions(+), 6 deletions(-) create mode 100644 nixos/machines/lobon/backupKey.yaml diff --git a/nixos/machines/lobon/backupKey.yaml b/nixos/machines/lobon/backupKey.yaml new file mode 100644 index 0000000..3095894 --- /dev/null +++ b/nixos/machines/lobon/backupKey.yaml @@ -0,0 +1,39 @@ +backupKey: ENC[AES256_GCM,data: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,iv:ghvgkC6qFO/0tvsc7igCoZy7am8eNsd21WYCSAKiZDs=,tag:MFnk/Nnw+cloN+x7sd4LLg==,type:str] +sops: + kms: [] + gcp_kms: [] + azure_kv: [] + hc_vault: [] + age: + - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln + enc: | + -----BEGIN AGE ENCRYPTED FILE----- + YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBaNVExTHQrY2h1M3RZOEdU + Wm5kdDBHZ1NmZGpQU0VOYWtjOTdBVURQZkJnCmZzWTEvSWxvMFk4NlFOVnBDbm9q + Tncva0VyMGVDL29ZZ0YxeGE3RFBUS3cKLS0tIDluK05NMUNNM3pEUmlCNE9BV3lT + L0dPYTBwbjJzUmJnYktiM2JBME5LM3cKvPwth4DxQgFYhvr9vJLfeaiNc+UfAo4c + RdXPLkwtq3vksrU1IR54tHcUJ0yZiZ1HxxGp3PCPaXXJiUykllnJPw== + -----END AGE ENCRYPTED FILE----- + - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7 + enc: | + -----BEGIN AGE ENCRYPTED FILE----- + YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBRdFV0OVA5VTBuOVhsL3lp + MFpDN2RHVDExck5vcWpDNDNPM2k3S1FqQUFFCjNreXdSbDFXOHJ4b21mNGlZb0xQ + YUh0WVNGN2o1aFVaaGpxbmk4aUQ4ZTAKLS0tIHhtci84Zk1zZlBOOHk4a3VKUlM1 + MXNZbWdpVEJiTTlIRERLYzBlNWxBMlUK4Z8JLlN5FOegfdg5njhHjbCwAm/f+kJS + buOHGWzWirW0ZibOP+fikzJwdIzIsX8v8tGaV89nQwf0hrxK0748Hg== + -----END AGE ENCRYPTED FILE----- + - recipient: age12nz7dtc0m5wasxm4r9crtkgwnzvauyfp0xh0n8z8jld0arn9ea9qe0agvn + enc: | + -----BEGIN AGE ENCRYPTED FILE----- + YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBZa2pUZlZsVmhPU242d0Nj + bi9BSlJBU1Q1cFU4ZjA4NnlJNmdwaVFBc2xNCjJlSG5UaDFnSzFHZ01RVVNjOHY5 + L1JVUit6SThvbGRIU0loNmtZanllNXcKLS0tIFhMR1pxRmlGQWFEQURiRFJoMWJZ + dlExV2xTVWR6bWI3VCtSdU81SmtqYncKLFQczlIj89vzlfgE33w6ktotYFdxaWr9 + YyewbY8qZmOUGQ4xKlZmhojeMh/FEH8dGNEf1AxnKbuQdnW6lqGR/w== + -----END AGE ENCRYPTED FILE----- + lastmodified: "2024-03-31T16:01:00Z" + mac: ENC[AES256_GCM,data:AawTzIXyX+3FyFpw8pXFeVJJtXN7ZpTFnUqhedC2vcbbNUzMMt1X0SaxtNNJ5chZI/tYHn59FT6zznl1eO4Xn29Zc2Up4dkT1BE4yqkEG0hiCFXrXMz/PaHfROzBhIWCVyF4fYj6MZKg1iBBxhWRqhJlQ1q4UVkoaITRUKpFJgs=,iv:3lTPOQ8VjmP3WNGbFK2yLU4Ks1KviNS/l7TH4SnvSUs=,tag:KUbAU6+76/Uxj2Wn9EnqnA==,type:str] + pgp: [] + unencrypted_suffix: _unencrypted + version: 3.8.1 diff --git a/nixos/machines/lobon/configuration.nix b/nixos/machines/lobon/configuration.nix index 553bfe4..506d637 100644 --- a/nixos/machines/lobon/configuration.nix +++ b/nixos/machines/lobon/configuration.nix @@ -18,4 +18,19 @@ networking.hostName = "lobon"; vmNetwork.ipv4 = "192.168.0.22"; system.stateVersion = "23.11"; + + sops.secrets = { + allowlistPass = { + sopsFile = ./allowlistPass.yaml; + owner = "mailman"; + group = "mailman"; + mode = "0400"; + }; + backupKey = { + sopsFile = ./backupKey.yaml; + owner = "root"; + group = "root"; + mode = "0400"; + }; + }; } diff --git a/nixos/modules/borgbackup.nix b/nixos/modules/borgbackup.nix index 784981c..08724cc 100644 --- a/nixos/modules/borgbackup.nix +++ b/nixos/modules/borgbackup.nix @@ -83,6 +83,13 @@ in { path = "/var/lib/backups/ithaqua"; allowSubRepos = true; }; + lobon = { + authorizedKeysAppendOnly = [ + "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICEptjf1UWRlo6DG9alAIRwkSDUAVHwDKkHC6/DeYKzi Lobon Backup" + ]; + path = "/var/lib/backups/lobon"; + allowSubRepos = true; + }; sanctamariamaterdei = { authorizedKeysAppendOnly = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH9Le5OI4ympQ0mQKYHmxgxGF598rzpD5VVpWK1mGfd8 Sanctamariamaterdei Backupsystem" diff --git a/nixos/modules/mailman.nix b/nixos/modules/mailman.nix index 9f64466..d106c0f 100644 --- a/nixos/modules/mailman.nix +++ b/nixos/modules/mailman.nix @@ -37,7 +37,7 @@ in { proxy_interfaces = "130.83.2.184"; smtputf8_enable = "no"; # HRZ does not know SMTPUTF8 }; - relayHost = "mailout.hrz.tu-darmstadt.de"; # Relay to HRZ (see https://www.hrz.tu-darmstadt.de/services/it_services/email_infrastruktur/index.de.jsp) + relayHost = "192.168.0.24"; # Relay to eihort which relays to HRZ (see https://www.hrz.tu-darmstadt.de/services/it_services/email_infrastruktur/index.de.jsp) }; mailman = { enable = true; @@ -60,6 +60,7 @@ in { "/var/lib/mailman" "/var/lib/mailman-web" ]; + files = ["/root/.ssh/known_hosts"]; # for the backup server bragi }; security.acme.defaults.email = cfg.siteOwner; @@ -95,11 +96,25 @@ in { PrivateTmp = true; }; }; - sops.secrets.allowlistPass = { - sopsFile = ../machines/lobon/allowlistPass.yaml; - owner = "mailman"; - group = "mailman"; - mode = "0400"; + + # Backups + services.borgbackup.jobs.mailman = { + paths = [ + "/var/lib/mailman/data" + "/var/lib/mailman-web" + ]; + encryption.mode = "none"; # Otherwise the key is next to the backup or we have human interaction. + environment = { + BORG_RSH = "ssh -i /run/secrets/backupKey"; + # “Borg ensures that backups are not created on random drives that ‘just happen’ to contain a Borg repository.” + # https://borgbackup.readthedocs.io/en/stable/deployment/automated-local.html + # We don't want this in order to not need to persist borg cache and simplify new deployments. + BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK = "yes"; + }; + repo = "borg@192.168.1.11:lobon"; # TODO for https://gitea.mathebau.de/Fachschaft/nixConfig/issues/33 + startAt = "daily"; + user = "root"; + group = "root"; }; }; }