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{ lib, config, options, ... }:
let
emailServerName = "mail.${config.monorepo.vars.orgHost}";
serverName = "list.${config.monorepo.vars.orgHost}";
password_path = "mail_monorepo_password";
in
{
sops.secrets = lib.mkIf config.services.maddy.enable {
"${password_path}" = lib.mkIf config.services.maddy.enable {
format = "yaml";
owner = "maddy";
};
};
services.maddy = {
enable = lib.mkDefault config.monorepo.profiles.server.enable;
openFirewall = true;
hostname = "${config.monorepo.vars.orgHost}";
primaryDomain = "mail.${config.monorepo.vars.orgHost}";
localDomains = [
"$(primary_domain)"
"${config.monorepo.vars.orgHost}"
];
tls = {
loader = "file";
certificates = [
{
keyPath = "/var/lib/acme/mail.${config.monorepo.vars.orgHost}/key.pem";
certPath = "/var/lib/acme/mail.${config.monorepo.vars.orgHost}/fullchain.pem";
}
];
};
config = builtins.replaceStrings [
"imap tcp://0.0.0.0:143"
"submission tcp://0.0.0.0:587"
] [
"imap tls://0.0.0.0:993 tcp://0.0.0.0:143"
"submission tls://0.0.0.0:465 tcp://0.0.0.0:587"
]
options.services.maddy.config.default;
ensureAccounts = (builtins.map (x: "${x}@${config.monorepo.vars.orgHost}") config.monorepo.vars.projects) ++ [
"${config.monorepo.vars.internetName}@${config.monorepo.vars.orgHost}"
"discussion@${config.monorepo.vars.orgHost}"
];
ensureCredentials = lib.genAttrs config.services.maddy.ensureAccounts
(name: {
passwordFile = "/run/secrets/${password_path}";
}) // {
"${config.monorepo.vars.internetName}@${config.monorepo.vars.orgHost}" = {
passwordFile = "/run/secrets/mail_password";
};
};
};
systemd.tmpfiles.rules = [
"C+ /var/lib/public-inbox/style.css 0644 public-inbox public-inbox - ${../data/public-inbox.css}"
];
systemd.services.public-inbox-httpd =
if config.monorepo.profiles.server.enable then {
preStart = ''
# Copy or link the file.
# Using 'cp' is often safer for sandboxed services than linking to the store. Lol.
cp -f ${../data/public-inbox.css} /var/lib/public-inbox/style.css
chmod 644 /var/lib/public-inbox/style.css
'';
serviceConfig = {
# Allow the service to see the file it just created
BindPaths = [
"/var/lib/public-inbox"
"${config.users.users.git.home}"
];
ReadOnlyPaths = [ "/var/lib/public-inbox/style.css" ];
# Ensure it can actually write to the directory during preStart
ReadWritePaths = [ "/var/lib/public-inbox" ];
};
} else { };
systemd.services.public-inbox-watch =
if config.monorepo.profiles.server.enable then {
after = [ "sops-nix.service" ];
confinement.enable = lib.mkForce false;
preStart = ''
mkdir -p /var/lib/public-inbox/.tmp
chmod 0700 /var/lib/public-inbox/.tmp
ln -sfn ${config.sops.templates."public-inbox-netrc".path} /var/lib/public-inbox/.netrc
'';
environment = {
PUBLIC_INBOX_FORCE_IPV4 = "1";
NETRC = config.sops.templates."public-inbox-netrc".path;
HOME = "/var/lib/public-inbox";
TMPDIR = "/var/lib/public-inbox/.tmp";
};
serviceConfig = {
RestrictSUIDSGID = lib.mkForce false;
ReadWritePaths = [ "/var/lib/public-inbox" ];
RestrictAddressFamilies = lib.mkForce [ "AF_UNIX" "AF_INET" "AF_INET6" ];
PrivateNetwork = lib.mkForce false;
SystemCallFilter = lib.mkForce [ ];
RootDirectory = lib.mkForce "";
CapabilityBoundingSet = lib.mkForce [ "~" ];
UMask = lib.mkForce "0022";
ProtectSystem = lib.mkForce false;
};
} else { };
services.public-inbox = {
enable = lib.mkDefault config.monorepo.profiles.server.enable;
settings = {
coderepo = lib.genAttrs config.monorepo.vars.projects (name: {
dir = "${config.users.users.git.home}/${name}.git";
# works even if no cgit server running here, this is just the default
cgitUrl = "https://git.${config.monorepo.vars.orgHost}/${name}.git";
});
publicinbox.css = [ "/var/lib/public-inbox/style.css" ];
publicinbox.wwwlisting = "all";
};
http = {
enable = true;
port = 9090;
};
inboxes = lib.genAttrs config.monorepo.vars.projects
(name: {
description = "discussion of the ${name} project.";
address = [ "${name}@${config.monorepo.vars.orgHost}" ];
inboxdir = "/var/lib/public-inbox/${name}";
url = "https://list.${config.monorepo.vars.orgHost}/${name}";
watch = [ "imaps://${name}${config.monorepo.vars.orgHost}@${emailServerName}/INBOX" ];
coderepo = [ "${name}" ];
}) // {
"discussion" = {
description = "Main Nullring Discussion Mailing List";
address = [ "discussion@${config.monorepo.vars.orgHost}" ];
inboxdir = "/var/lib/public-inbox/discuss";
url = "https://${serverName}/discussion";
watch = [ "imaps://discussion%40${config.monorepo.vars.orgHost}@${emailServerName}/INBOX" ];
};
};
};
networking.domains.baseDomains."${config.monorepo.vars.orgHost}" = lib.mkIf config.services.maddy.enable {
mx.data = [
{
preference = 10;
exchange = "${emailServerName}";
}
];
};
networking.domains.subDomains = lib.mkIf config.services.maddy.enable {
"${serverName}" = { };
"${emailServerName}" = { };
"_dmarc.${config.monorepo.vars.orgHost}" = {
txt = {
data = "v=DMARC1; p=none";
};
};
"default._domainkey.${config.monorepo.vars.orgHost}" = {
txt = {
data = "v=DKIM1; k=rsa; p=${config.monorepo.vars.dkimKey}";
};
};
};
networking.firewall.allowedTCPPorts = lib.mkIf config.services.maddy.enable [
143
465
587
993
];
services.nginx.virtualHosts."${serverName}" = lib.mkIf config.services.public-inbox.enable {
forceSSL = true;
enableACME = true;
locations."/" = {
proxyPass = "http://localhost:${toString config.services.public-inbox.http.port}";
extraConfig = ''
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
'';
};
};
services.nginx.virtualHosts."${emailServerName}" = lib.mkIf config.services.maddy.enable {
serverName = "${emailServerName}";
root = "/var/www/dummy";
addSSL = true;
enableACME = true;
};
}
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