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nixos/mysql: use systemd.tmpfiles to setup dataDir and pidDir

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We need to keep using `RuntimeDirectory=mysqld`, which translates to
`/run/mysqld`, as this is used for the location of the file socket, that
could differ with what is configured via `cfg.pidDir`.
This commit is contained in:
Florian Klink 2019-05-17 00:10:34 +02:00
parent 6c7586228c
commit 50dda813e2
1 changed files with 7 additions and 4 deletions
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11
nixos/modules/services/databases/mysql.nix
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@ -296,6 +296,11 @@ in
${cfg.extraOptions}
'';
systemd.tmpfiles.rules = [
"d '${cfg.dataDir}' 0700 ${cfg.user} mysql -"
"d '${cfg.pidDir}' 0755 ${cfg.user} mysql -"
];
systemd.services.mysql = let
hasNotify = (cfg.package == pkgs.mariadb);
in {
@ -316,19 +321,17 @@ in
preStart =
''
if ! test -e ${cfg.dataDir}/mysql; then
mkdir -m 0700 -p ${cfg.dataDir}
chown -R ${cfg.user} ${cfg.dataDir}
${mysql}/bin/mysql_install_db --defaults-file=/etc/my.cnf ${installOptions}
touch /tmp/mysql_init
fi
mkdir -m 0755 -p ${cfg.pidDir}
chown -R ${cfg.user} ${cfg.pidDir}
'';
serviceConfig = {
Type = if hasNotify then "notify" else "simple";
# /run/mysqld needs to be created in addition to pidDir, as they could point to different locations
RuntimeDirectory = "mysqld";
RuntimeDirectoryMode = "0755";
# The last two environment variables are used for starting Galera clusters
ExecStart = "${mysql}/bin/mysqld --defaults-file=/etc/my.cnf ${mysqldOptions} $_WSREP_NEW_CLUSTER $_WSREP_START_POSITION";
};