2014-04-14 15:26:48 +01:00
|
|
|
{ config, lib, pkgs, ... }:
|
2009-10-12 18:27:57 +01:00
|
|
|
|
2014-04-14 15:26:48 +01:00
|
|
|
with lib;
|
2009-03-06 12:27:00 +00:00
|
|
|
|
2008-01-28 14:34:29 +00:00
|
|
|
let
|
|
|
|
|
2008-06-25 22:58:51 +01:00
|
|
|
cfg = config.services.mysql;
|
|
|
|
|
2009-12-16 15:24:15 +00:00
|
|
|
mysql = cfg.package;
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2015-04-01 00:16:12 +01:00
|
|
|
atLeast55 = versionAtLeast mysql.mysqlVersion "5.5";
|
2014-02-26 12:54:04 +00:00
|
|
|
|
2008-06-25 22:58:51 +01:00
|
|
|
pidFile = "${cfg.pidDir}/mysqld.pid";
|
|
|
|
|
|
|
|
mysqldOptions =
|
2014-03-14 15:56:54 +00:00
|
|
|
"--user=${cfg.user} --datadir=${cfg.dataDir} --basedir=${mysql} " +
|
2013-07-14 00:47:40 +01:00
|
|
|
"--pid-file=${pidFile}";
|
2008-01-28 14:34:29 +00:00
|
|
|
|
2011-07-13 21:58:48 +01:00
|
|
|
myCnf = pkgs.writeText "my.cnf"
|
|
|
|
''
|
|
|
|
[mysqld]
|
2014-04-30 15:21:29 +01:00
|
|
|
port = ${toString cfg.port}
|
2011-07-13 21:58:48 +01:00
|
|
|
${optionalString (cfg.replication.role == "master" || cfg.replication.role == "slave") "log-bin=mysql-bin"}
|
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|
|
${optionalString (cfg.replication.role == "master" || cfg.replication.role == "slave") "server-id = ${toString cfg.replication.serverId}"}
|
2015-04-01 00:16:12 +01:00
|
|
|
${optionalString (cfg.replication.role == "slave" && !atLeast55)
|
2011-07-13 21:58:48 +01:00
|
|
|
''
|
|
|
|
master-host = ${cfg.replication.masterHost}
|
|
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|
master-user = ${cfg.replication.masterUser}
|
|
|
|
master-password = ${cfg.replication.masterPassword}
|
|
|
|
master-port = ${toString cfg.replication.masterPort}
|
|
|
|
''}
|
2013-07-14 00:47:40 +01:00
|
|
|
${cfg.extraOptions}
|
2011-07-13 21:58:48 +01:00
|
|
|
'';
|
|
|
|
|
2008-01-28 14:34:29 +00:00
|
|
|
in
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
{
|
|
|
|
|
|
|
|
###### interface
|
|
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|
|
options = {
|
2011-09-14 19:20:50 +01:00
|
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|
2009-07-15 12:19:11 +01:00
|
|
|
services.mysql = {
|
2011-09-14 19:20:50 +01:00
|
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|
2009-07-15 12:19:11 +01:00
|
|
|
enable = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.bool;
|
2009-07-15 12:19:11 +01:00
|
|
|
default = false;
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|
|
|
description = "
|
|
|
|
Whether to enable the MySQL server.
|
|
|
|
";
|
|
|
|
};
|
|
|
|
|
2009-12-16 15:24:15 +00:00
|
|
|
package = mkOption {
|
2014-02-26 12:54:04 +00:00
|
|
|
type = types.package;
|
2016-10-02 21:46:58 +01:00
|
|
|
default = pkgs.mysql;
|
2016-10-09 10:19:54 +01:00
|
|
|
defaultText = "pkgs.mysql";
|
|
|
|
example = literalExample "pkgs.mysql55";
|
2009-12-16 14:54:36 +00:00
|
|
|
description = "
|
|
|
|
Which MySQL derivation to use.
|
|
|
|
";
|
|
|
|
};
|
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
port = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.int;
|
|
|
|
default = 3306;
|
2011-09-14 19:20:50 +01:00
|
|
|
description = "Port of MySQL";
|
2009-07-15 12:19:11 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
user = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.str;
|
2009-07-15 12:19:11 +01:00
|
|
|
default = "mysql";
|
|
|
|
description = "User account under which MySQL runs";
|
|
|
|
};
|
|
|
|
|
|
|
|
dataDir = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.path;
|
2009-10-12 12:30:43 +01:00
|
|
|
default = "/var/mysql"; # !!! should be /var/db/mysql
|
2009-07-15 12:19:11 +01:00
|
|
|
description = "Location where MySQL stores its table files";
|
|
|
|
};
|
|
|
|
|
|
|
|
pidDir = mkOption {
|
2015-04-01 00:16:12 +01:00
|
|
|
default = "/run/mysqld";
|
2009-07-15 12:19:11 +01:00
|
|
|
description = "Location of the file which stores the PID of the MySQL server";
|
2011-09-14 19:20:50 +01:00
|
|
|
};
|
|
|
|
|
2013-07-14 00:47:40 +01:00
|
|
|
extraOptions = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.lines;
|
2013-07-14 00:47:40 +01:00
|
|
|
default = "";
|
|
|
|
example = ''
|
|
|
|
key_buffer_size = 6G
|
|
|
|
table_cache = 1600
|
|
|
|
log-error = /var/log/mysql_err.log
|
|
|
|
'';
|
|
|
|
description = ''
|
|
|
|
Provide extra options to the MySQL configuration file.
|
|
|
|
|
|
|
|
Please note, that these options are added to the
|
|
|
|
<literal>[mysqld]</literal> section so you don't need to explicitly
|
|
|
|
state it again.
|
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2009-11-18 16:19:04 +00:00
|
|
|
initialDatabases = mkOption {
|
|
|
|
default = [];
|
|
|
|
description = "List of database names and their initial schemas that should be used to create databases on the first startup of MySQL";
|
2012-01-18 15:01:44 +00:00
|
|
|
example = [
|
2013-10-23 19:06:39 +01:00
|
|
|
{ name = "foodatabase"; schema = literalExample "./foodatabase.sql"; }
|
|
|
|
{ name = "bardatabase"; schema = literalExample "./bardatabase.sql"; }
|
2012-01-18 15:01:44 +00:00
|
|
|
];
|
2009-11-18 16:19:04 +00:00
|
|
|
};
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2010-04-16 19:06:23 +01:00
|
|
|
initialScript = mkOption {
|
|
|
|
default = null;
|
2012-01-18 15:01:44 +00:00
|
|
|
description = "A file containing SQL statements to be executed on the first startup. Can be used for granting certain permissions on the database";
|
2010-04-16 19:06:23 +01:00
|
|
|
};
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2012-12-18 12:40:04 +00:00
|
|
|
# FIXME: remove this option; it's a really bad idea.
|
2010-04-16 19:06:23 +01:00
|
|
|
rootPassword = mkOption {
|
|
|
|
default = null;
|
2012-01-18 15:01:44 +00:00
|
|
|
description = "Path to a file containing the root password, modified on the first startup. Not specifying a root password will leave the root password empty.";
|
2010-04-16 19:06:23 +01:00
|
|
|
};
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2011-07-13 21:58:48 +01:00
|
|
|
replication = {
|
|
|
|
role = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.enum [ "master" "slave" "none" ];
|
2012-01-18 15:01:44 +00:00
|
|
|
default = "none";
|
2016-10-02 21:34:29 +01:00
|
|
|
description = "Role of the MySQL server instance.";
|
2012-01-18 15:01:44 +00:00
|
|
|
};
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2011-07-13 21:58:48 +01:00
|
|
|
serverId = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.int;
|
2012-01-18 15:01:44 +00:00
|
|
|
default = 1;
|
|
|
|
description = "Id of the MySQL server instance. This number must be unique for each instance";
|
|
|
|
};
|
|
|
|
|
|
|
|
masterHost = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.str;
|
2012-01-18 15:01:44 +00:00
|
|
|
description = "Hostname of the MySQL master server";
|
|
|
|
};
|
|
|
|
|
2016-07-21 01:15:55 +01:00
|
|
|
slaveHost = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.str;
|
2016-07-21 01:15:55 +01:00
|
|
|
description = "Hostname of the MySQL slave server";
|
|
|
|
};
|
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
masterUser = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.str;
|
2012-01-18 15:01:44 +00:00
|
|
|
description = "Username of the MySQL replication user";
|
|
|
|
};
|
|
|
|
|
|
|
|
masterPassword = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.str;
|
2012-01-18 15:01:44 +00:00
|
|
|
description = "Password of the MySQL replication user";
|
|
|
|
};
|
|
|
|
|
|
|
|
masterPort = mkOption {
|
2016-10-02 21:34:29 +01:00
|
|
|
type = types.int;
|
2012-01-18 15:01:44 +00:00
|
|
|
default = 3306;
|
|
|
|
description = "Port number on which the MySQL master server runs";
|
|
|
|
};
|
2011-07-13 21:58:48 +01:00
|
|
|
};
|
2009-07-15 12:19:11 +01:00
|
|
|
};
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
};
|
|
|
|
|
2009-03-06 12:27:00 +00:00
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
###### implementation
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
config = mkIf config.services.mysql.enable {
|
|
|
|
|
2013-08-26 14:20:25 +01:00
|
|
|
users.extraUsers.mysql = {
|
|
|
|
description = "MySQL server user";
|
|
|
|
group = "mysql";
|
|
|
|
uid = config.ids.uids.mysql;
|
|
|
|
};
|
|
|
|
|
|
|
|
users.extraGroups.mysql.gid = config.ids.gids.mysql;
|
2009-03-06 12:27:00 +00:00
|
|
|
|
2009-07-15 12:19:11 +01:00
|
|
|
environment.systemPackages = [mysql];
|
2009-03-06 12:27:00 +00:00
|
|
|
|
2013-01-16 11:33:18 +00:00
|
|
|
systemd.services.mysql =
|
2012-12-18 12:40:04 +00:00
|
|
|
{ description = "MySQL Server";
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2016-10-02 21:17:20 +01:00
|
|
|
after = [ "network.target" ];
|
2012-12-18 12:40:04 +00:00
|
|
|
wantedBy = [ "multi-user.target" ];
|
|
|
|
|
|
|
|
unitConfig.RequiresMountsFor = "${cfg.dataDir}";
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2015-09-07 16:05:56 +01:00
|
|
|
path = [
|
|
|
|
# Needed for the mysql_install_db command in the preStart script
|
|
|
|
# which calls the hostname command.
|
|
|
|
pkgs.nettools
|
|
|
|
];
|
|
|
|
|
2009-10-12 12:30:43 +01:00
|
|
|
preStart =
|
|
|
|
''
|
|
|
|
if ! test -e ${cfg.dataDir}/mysql; then
|
2009-03-06 12:27:00 +00:00
|
|
|
mkdir -m 0700 -p ${cfg.dataDir}
|
|
|
|
chown -R ${cfg.user} ${cfg.dataDir}
|
|
|
|
${mysql}/bin/mysql_install_db ${mysqldOptions}
|
2012-01-18 15:01:44 +00:00
|
|
|
touch /tmp/mysql_init
|
2009-03-06 12:27:00 +00:00
|
|
|
fi
|
2008-06-25 22:58:51 +01:00
|
|
|
|
2015-04-20 14:20:07 +01:00
|
|
|
mkdir -m 0755 -p ${cfg.pidDir}
|
2009-03-06 12:27:00 +00:00
|
|
|
chown -R ${cfg.user} ${cfg.pidDir}
|
2015-04-01 00:16:12 +01:00
|
|
|
|
|
|
|
# Make the socket directory
|
2015-04-14 13:34:26 +01:00
|
|
|
mkdir -p /run/mysqld
|
2015-06-10 09:31:12 +01:00
|
|
|
chmod 0755 /run/mysqld
|
2015-04-01 00:16:12 +01:00
|
|
|
chown -R ${cfg.user} /run/mysqld
|
2012-12-18 12:40:04 +00:00
|
|
|
'';
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2015-03-29 21:29:57 +01:00
|
|
|
serviceConfig.ExecStart = "${mysql}/bin/mysqld --defaults-extra-file=${myCnf} ${mysqldOptions}";
|
2012-12-18 12:40:04 +00:00
|
|
|
|
|
|
|
postStart =
|
|
|
|
''
|
2009-11-18 16:19:04 +00:00
|
|
|
# Wait until the MySQL server is available for use
|
|
|
|
count=0
|
2015-04-01 00:16:12 +01:00
|
|
|
while [ ! -e /run/mysqld/mysqld.sock ]
|
2009-11-18 16:19:04 +00:00
|
|
|
do
|
|
|
|
if [ $count -eq 30 ]
|
|
|
|
then
|
2010-04-16 19:06:23 +01:00
|
|
|
echo "Tried 30 times, giving up..."
|
2012-01-18 15:01:44 +00:00
|
|
|
exit 1
|
2010-04-16 19:06:23 +01:00
|
|
|
fi
|
2009-11-18 16:19:04 +00:00
|
|
|
|
2010-04-16 19:06:23 +01:00
|
|
|
echo "MySQL daemon not yet started. Waiting for 1 second..."
|
|
|
|
count=$((count++))
|
|
|
|
sleep 1
|
2009-11-18 16:19:04 +00:00
|
|
|
done
|
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
if [ -f /tmp/mysql_init ]
|
|
|
|
then
|
2011-09-14 19:20:50 +01:00
|
|
|
${concatMapStrings (database:
|
2010-04-16 19:06:23 +01:00
|
|
|
''
|
2012-01-18 15:01:44 +00:00
|
|
|
# Create initial databases
|
2010-04-16 19:06:23 +01:00
|
|
|
if ! test -e "${cfg.dataDir}/${database.name}"; then
|
|
|
|
echo "Creating initial database: ${database.name}"
|
|
|
|
( echo "create database ${database.name};"
|
|
|
|
echo "use ${database.name};"
|
2012-12-18 12:40:04 +00:00
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
if [ -f "${database.schema}" ]
|
|
|
|
then
|
2010-04-16 19:06:23 +01:00
|
|
|
cat ${database.schema}
|
2012-01-18 15:01:44 +00:00
|
|
|
elif [ -d "${database.schema}" ]
|
|
|
|
then
|
|
|
|
cat ${database.schema}/mysql-databases/*.sql
|
|
|
|
fi
|
|
|
|
) | ${mysql}/bin/mysql -u root -N
|
2010-04-16 19:06:23 +01:00
|
|
|
fi
|
2011-09-14 19:20:50 +01:00
|
|
|
'') cfg.initialDatabases}
|
|
|
|
|
2016-07-21 01:15:55 +01:00
|
|
|
${optionalString (cfg.replication.role == "master" && atLeast55)
|
2014-02-26 12:54:04 +00:00
|
|
|
''
|
|
|
|
# Set up the replication master
|
|
|
|
|
2016-07-21 01:15:55 +01:00
|
|
|
( echo "use mysql;"
|
2016-07-22 23:37:05 +01:00
|
|
|
echo "CREATE USER '${cfg.replication.masterUser}'@'${cfg.replication.slaveHost}' IDENTIFIED WITH mysql_native_password;"
|
|
|
|
echo "SET PASSWORD FOR '${cfg.replication.masterUser}'@'${cfg.replication.slaveHost}' = PASSWORD('${cfg.replication.masterPassword}');"
|
2016-07-21 01:15:55 +01:00
|
|
|
echo "GRANT REPLICATION SLAVE ON *.* TO '${cfg.replication.masterUser}'@'${cfg.replication.slaveHost}';"
|
|
|
|
) | ${mysql}/bin/mysql -u root -N
|
|
|
|
''}
|
|
|
|
|
|
|
|
${optionalString (cfg.replication.role == "slave" && atLeast55)
|
|
|
|
''
|
|
|
|
# Set up the replication slave
|
|
|
|
|
2014-02-26 12:54:04 +00:00
|
|
|
( echo "stop slave;"
|
|
|
|
echo "change master to master_host='${cfg.replication.masterHost}', master_user='${cfg.replication.masterUser}', master_password='${cfg.replication.masterPassword}';"
|
|
|
|
echo "start slave;"
|
|
|
|
) | ${mysql}/bin/mysql -u root -N
|
|
|
|
''}
|
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
${optionalString (cfg.initialScript != null)
|
|
|
|
''
|
|
|
|
# Execute initial script
|
|
|
|
cat ${cfg.initialScript} | ${mysql}/bin/mysql -u root -N
|
|
|
|
''}
|
2011-09-14 19:20:50 +01:00
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
${optionalString (cfg.rootPassword != null)
|
|
|
|
''
|
|
|
|
# Change root password
|
2012-12-18 12:40:04 +00:00
|
|
|
|
2012-01-18 15:01:44 +00:00
|
|
|
( echo "use mysql;"
|
|
|
|
echo "update user set Password=password('$(cat ${cfg.rootPassword})') where User='root';"
|
|
|
|
echo "flush privileges;"
|
|
|
|
) | ${mysql}/bin/mysql -u root -N
|
|
|
|
''}
|
|
|
|
|
|
|
|
rm /tmp/mysql_init
|
|
|
|
fi
|
2012-12-18 12:40:04 +00:00
|
|
|
''; # */
|
2009-10-12 12:30:43 +01:00
|
|
|
};
|
2009-07-15 12:19:11 +01:00
|
|
|
|
2009-03-06 12:27:00 +00:00
|
|
|
};
|
2009-07-15 12:19:11 +01:00
|
|
|
|
2008-01-28 14:34:29 +00:00
|
|
|
}
|