coturn watches for changed certs

This commit is contained in:
Motiejus Jakštys 2023-03-01 14:55:57 +02:00
parent f6b37127f6
commit 0a021dc80f

View File

@ -6,28 +6,14 @@
let
gitea_uidgid = 995;
tailscale_subnet4 = "100.89.176.0/20";
ssh_pubkeys = {
motiejus = "ssh-rsa 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";
vno1_root = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMiWb7yeSeuFCMZWarKJD6ZSxIlpEHbU++MfpOIy/2kh";
};
mountLatest = ({mountpoint, zfs_name}:
''
set -euo pipefail
${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest &>/dev/null || :
mkdir -p ${mountpoint}/.snapshot-latest
${pkgs.util-linux}/bin/mount -t zfs $(${pkgs.zfs}/bin/zfs list -H -t snapshot -o name ${zfs_name} | sort | tail -1) ${mountpoint}/.snapshot-latest
''
);
umountLatest = ({mountpoint, ...}:
''set -euo pipefail
${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest
''
);
backup_paths = {
var_lib = {
mountpoint = "/var/lib";
@ -50,6 +36,24 @@ let
};
};
turn_cert_dir = "/var/lib/caddy/.local/share/caddy/certificates/acme-v02.api.letsencrypt.org-directory/turn.jakstys.lt";
# functions
mountLatest = ({mountpoint, zfs_name}:
''
set -euo pipefail
${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest &>/dev/null || :
mkdir -p ${mountpoint}/.snapshot-latest
${pkgs.util-linux}/bin/mount -t zfs $(${pkgs.zfs}/bin/zfs list -H -t snapshot -o name ${zfs_name} | sort | tail -1) ${mountpoint}/.snapshot-latest
''
);
umountLatest = ({mountpoint, ...}:
''set -euo pipefail
${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest
''
);
in {
imports =
[
@ -450,24 +454,35 @@ in {
};
};
coturn = let
cert_dir = "/var/lib/caddy/.local/share/caddy/certificates/acme-v02.api.letsencrypt.org-directory/turn.jakstys.lt";
in {
coturn = {
preStart = ''
ln -sf ''${CREDENTIALS_DIRECTORY}/tls-key.pem /run/coturn/tls-key.pem
ln -sf ''${CREDENTIALS_DIRECTORY}/tls-cert.pem /run/coturn/tls-cert.pem
'';
unitConfig.ConditionPathExists = [
"${cert_dir}/turn.jakstys.lt.key"
"${cert_dir}/turn.jakstys.lt.crt"
"${turn_cert_dir}/turn.jakstys.lt.key"
"${turn_cert_dir}/turn.jakstys.lt.crt"
];
serviceConfig.LoadCredential = [
"static-auth-secret:/var/src/secrets/turn/static-auth-secret"
"tls-key.pem:${cert_dir}/turn.jakstys.lt.key"
"tls-cert.pem:${cert_dir}/turn.jakstys.lt.crt"
"tls-key.pem:${turn_cert_dir}/turn.jakstys.lt.key"
"tls-cert.pem:${turn_cert_dir}/turn.jakstys.lt.crt"
];
};
cert-watcher = {
description = "Restart coturn when tls key/cert changes";
wantedBy = ["multi-user.target"];
unitConfig = {
StartLimitIntervalSec = 10;
StartLimitBurst = 5;
};
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.systemd}/bin/systemctl restart coturn.service";
};
};
# https://northernlightlabs.se/2014-07-05/systemd-status-mail-on-unit-failure.html
"unit-status-mail@" = let
script = pkgs.writeShellScript "unit-status-mail" ''
@ -504,6 +519,16 @@ in {
}) backup_paths;
systemd.paths = {
cert-watcher = {
wantedBy = ["multi-user.target"];
pathConfig = {
PathChanged = "${turn_cert_dir}/turn.jakstys.lt.crt";
Unit = "cert-watcher.service";
};
};
};
# Do not change
system.stateVersion = "22.11";
}