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165 lines
4.1 KiB
Nix
165 lines
4.1 KiB
Nix
{config, pkgs} :
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let
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startingDependency = if config.services.gw6c.enable then "gw6c" else "network-interfaces";
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cfg = config.services.postfix;
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user = cfg.user;
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group = cfg.group;
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setgidGroup = cfg.setgidGroup;
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idList = import ../system/ids.nix;
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optionalString = pkgs.lib.optionalString;
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concatStringsSep = pkgs.lib.concatStringsSep;
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mainCf =
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''
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queue_directory = /var/postfix/queue
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command_directory = ${pkgs.postfix}/sbin
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daemon_directory = ${pkgs.postfix}/libexec/postfix
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mail_owner = ${user}
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default_privs = nobody
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''
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+ optionalString (config.services.gw6c.enable || config.networking.nativeIPv6) (''
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inet_protocols = all
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'')
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+
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(if cfg.networks!=null then
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(''
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mynetworks = ${concatStringsSep ", " cfg.networks}
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'')
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else if (cfg.networksStyle != "") then
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(''
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mynetworks_style = ${cfg.networksStyle}
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'')
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else
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# Postfix default is subnet, but let's play safe
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(''
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mynetworks_style = host
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'')
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)
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+ optionalString (cfg.hostname != "") (''
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myhostname = ${cfg.hostname}
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'')
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+ optionalString (cfg.domain != "") (''
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mydomain = ${cfg.domain}
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'')
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+ optionalString (cfg.origin != "") (''
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myorigin = ${cfg.origin}
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'')
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+ optionalString (cfg.destination != null) (''
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mydestination = ${concatStringsSep ", " cfg.destination}
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'')
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+ optionalString (cfg.relayDomains != null) (''
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relay_domains = ${concatStringsSep ", " cfg.relayDomains}
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'')
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+ ''
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local_recipient_maps =
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''
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+ (''
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relayhost = ${if cfg.lookupMX || cfg.relayHost == "" then
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cfg.relayHost
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else
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"[" + cfg.relayHost + "]"}
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'')
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+ (''
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alias_maps = hash:/var/postfix/conf/aliases
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mail_spool_directory = /var/spool/mail/
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setgid_group = ${setgidGroup}
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'')
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+ optionalString (cfg.sslCert != "") (''
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smtp_tls_CAfile = ${cfg.sslCACert}
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smtp_tls_cert_file = ${cfg.sslCert}
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smtp_tls_key_file = ${cfg.sslKey}
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smtp_use_tls = yes
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smtpd_tls_CAfile = ${cfg.sslCACert}
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smtpd_tls_cert_file = ${cfg.sslCert}
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smtpd_tls_key_file = ${cfg.sslKey}
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smtpd_use_tls = yes
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recipientDelimiter = ${cfg.recipientDelimiter}
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'')
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;
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aliases =
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(optionalString (cfg.postmasterAlias != "") (''
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postmaster: ${cfg.postmasterAlias}
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''))
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+
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(optionalString (cfg.rootAlias != "") (''
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root: ${cfg.rootAlias}
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''))
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+ cfg.extraAliases
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;
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aliasesFile = pkgs.writeText "postfix-aliases" aliases;
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mainCfFile = pkgs.writeText "postfix-main.cf" mainCf;
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in
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{
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name = "postfix";
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users = [
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{ name = user;
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description = "Postfix mail server user";
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uid = idList.uids.postfix;
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group = group;
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}
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];
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groups = [
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{ name = group;
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gid = idList.gids.postfix;
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}
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{ name = setgidGroup;
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gid = idList.gids.postdrop;
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}
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];
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# I copy _lots_ of shipped configuration filed
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# that can be left as is. I am afraid the exact
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# will list slightly change in next Postfix
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# release, so listing them all one-by-one in an
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# accurate way is unlikely to be better.
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job = ''
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description "Postfix mail server job"
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start on ${startingDependency}/started
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stop on never
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script
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if ! [ -d /var/spool/postfix ]; then
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${pkgs.coreutils}/bin/mkdir -p /var/spool/mail /var/postfix/conf /var/postfix/queue
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fi
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${pkgs.coreutils}/bin/chown -R ${user}.${group} /var/postfix
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${pkgs.coreutils}/bin/chown -R ${user}.${setgidGroup} /var/postfix/queue
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${pkgs.coreutils}/bin/chmod -R ug+rwX /var/postfix/queue
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${pkgs.coreutils}/bin/chown root.root /var/spool/mail
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${pkgs.coreutils}/bin/chmod a+rwxt /var/spool/mail
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ln -sf ${pkgs.postfix}/share/postfix/conf/* /var/postfix/conf
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ln -sf ${aliasesFile} /var/postfix/conf/aliases
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ln -sf ${mainCfFile} /var/postfix/conf/main.cf
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${pkgs.postfix}/sbin/postalias -c /var/postfix/conf /var/postfix/conf/aliases
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${pkgs.postfix}/sbin/postfix -c /var/postfix/conf start
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end script
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'';
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extraEtc = [
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{ source = "/var/postfix/conf";
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target = "postfix";
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}
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];
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}
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