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Merge pull request #33372 from Mic92/memcache

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nixos/memcached: make unix sockets usuable
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Jörg Thalheim 2018-01-04 18:39:48 +01:00 committed by GitHub
commit f29ecd56c1
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3 changed files with 38 additions and 25 deletions
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8
nixos/doc/manual/release-notes/rl-1803.xml
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@ -131,6 +131,14 @@ following incompatible changes:</para>
Other types dependencies should be unaffected.
</para>
</listitem>
<listitem>
<para>
The <literal>memcached</literal> service no longer accept dynamic socket
paths via <option>services.memcached.socket</option>. Unix sockets can be
still enabled by <option>services.memcached.enableUnixSocket</option> and
will be accessible at <literal>/run/memcached/memcached.sock</literal>.
</para>
</listitem>
</itemizedlist>
</section>

4
nixos/modules/misc/ids.nix
View file

@ -197,7 +197,7 @@
#input = 174; # unused
sddm = 175;
tss = 176;
memcached = 177;
#memcached = 177; removed 2018-01-03
ntp = 179;
zabbix = 180;
#redis = 181; removed 2018-01-03
@ -475,7 +475,7 @@
input = 174;
sddm = 175;
tss = 176;
#memcached = 177; # unused
#memcached = 177; # unused, removed 2018-01-03
#ntp = 179; # unused
#zabbix = 180; # unused
#redis = 181; # unused, removed 2018-01-03

51
nixos/modules/services/databases/memcached.nix
View file

@ -40,11 +40,7 @@ in
description = "The port to bind to";
};
socket = mkOption {
default = "";
description = "Unix socket path to listen on. Setting this will disable network support";
example = "/var/run/memcached";
};
enableUnixSocket = mkEnableOption "unix socket at /run/memcached/memcached.sock";
maxMemory = mkOption {
default = 64;
@ -68,31 +64,40 @@ in
config = mkIf config.services.memcached.enable {
users.extraUsers.memcached =
{ name = cfg.user;
uid = config.ids.uids.memcached;
description = "Memcached server user";
};
users.extraUsers = optional (cfg.user == "memcached") {
name = "memcached";
description = "Memcached server user";
};
environment.systemPackages = [ memcached ];
systemd.services.memcached =
{ description = "Memcached server";
systemd.services.memcached = {
description = "Memcached server";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
ExecStart =
let
networking = if cfg.socket != ""
then "-s ${cfg.socket}"
else "-l ${cfg.listen} -p ${toString cfg.port}";
in "${memcached}/bin/memcached ${networking} -m ${toString cfg.maxMemory} -c ${toString cfg.maxConnections} ${concatStringsSep " " cfg.extraOptions}";
serviceConfig = {
PermissionsStartOnly = true;
ExecStartPre = optionals cfg.enableUnixSocket [
"${pkgs.coreutils}/bin/install -d -o ${cfg.user} /run/memcached/"
"${pkgs.coreutils}/bin/chown -R ${cfg.user} /run/memcached/"
];
ExecStart =
let
networking = if cfg.enableUnixSocket
then "-s /run/memcached/memcached.sock"
else "-l ${cfg.listen} -p ${toString cfg.port}";
in "${memcached}/bin/memcached ${networking} -m ${toString cfg.maxMemory} -c ${toString cfg.maxConnections} ${concatStringsSep " " cfg.extraOptions}";
User = cfg.user;
};
User = cfg.user;
};
};
};
imports = [
(mkRemovedOptionModule ["services" "memcached" "socket"] ''
This option was replaced by a fixed unix socket path at /run/memcached/memcached.sock enabled using services.memached.enableUnixSocket.
'')
];
}