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mysql: adding option to create databases and users #6963

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mysql: adding option to create databases and users #6963

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20 changes: 20 additions & 0 deletions nixos/modules/services/databases/mysql.nix
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Expand Up @@ -107,6 +107,13 @@ in
description = "A file containing SQL statements to be executed on the first startup. Can be used for granting certain permissions on the database";
};

databases = mkOption {
default = [];
description = "List of databases that should exist on each startup and users that should have access to it.";
example = [ { name = "foodatabase"; users = [ { username = "foouser"; password = "secret"; } ]; } ];
};


# FIXME: remove this option; it's a really bad idea.
rootPassword = mkOption {
default = null;
Expand Down Expand Up @@ -160,6 +167,19 @@ in

environment.systemPackages = [mysql];

system.activationScripts.mysql = ''
${concatMapStrings (database: ''
if [ -z "$(${mysql}/bin/mysqlshow | ${pkgs.gnugrep}/bin/grep -E '^\| +${database.name} +\|')" ]
then
${mysql}/bin/mysqladmin create "${database.name}"
fi
${concatMapStrings (user: ''
## `` are *NONSTANDARD* but work on MYSQL. For other SQL servers, "" should work better
echo "GRANT ALL ON \`${database.name}\`.* TO '${user.username}'@localhost IDENTIFIED BY '${user.password}'" | ${mysql}/bin/mysql "${database.name}" ;
'') database.users}
'') cfg.databases}
'';

systemd.services.mysql =
{ description = "MySQL Server";

Expand Down