First version of standalone mysql recipe

slapos/recipe/README.mysql.txt

+mysql
+=========
+
+Instantiates MySQL instance.

slapos/recipe/mysql/mysql.py

+import os
+import subprocess
+import time
+import sys
+
+
+def runMysql(args):
+  sleep = 60
+  conf = args[0]
+  mysqld_wrapper_list = [conf['mysqld_binary'], '--defaults-file=%s' %
+      conf['configuration_file']]
+  # we trust mysql_install that if mysql directory is available mysql was
+  # correctly initalised
+  if not os.path.isdir(os.path.join(conf['data_directory'], 'mysql')):
+    while True:
+      # XXX: Protect with proper root password
+      # XXX: Follow http://dev.mysql.com/doc/refman/5.0/en/default-privileges.html
+      popen = subprocess.Popen([conf['mysql_install_binary'],
+        '--skip-name-resolve', '--no-defaults', '--datadir=%s' %
+        conf['data_directory']],
+        stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+      result = popen.communicate()[0]
+      if popen.returncode is None or popen.returncode != 0:
+        print "Failed to initialise server.\nThe error was: %s" % result
+        print "Waiting for %ss and retrying" % sleep
+        time.sleep(sleep)
+      else:
+        print "Mysql properly initialised"
+        break
+  else:
+    print "MySQL already initialised"
+  print "Starting %r" % mysqld_wrapper_list[0]
+  sys.stdout.flush()
+  sys.stderr.flush()
+  os.execl(mysqld_wrapper_list[0], *mysqld_wrapper_list)
+
+
+def updateMysql(args):
+  conf = args[0]
+  sleep = 30
+  is_succeed = False
+  while True:
+    if not is_succeed:
+      mysql_upgrade_list = [conf['mysql_upgrade_binary'], '--no-defaults', '--user=root', '--socket=%s' % conf['socket']]
+      mysql_upgrade = subprocess.Popen(mysql_upgrade_list, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+      result = mysql_upgrade.communicate()[0]
+      if mysql_upgrade.returncode is None:
+        mysql_upgrade.kill()
+      if mysql_upgrade.returncode != 0 and not 'is already upgraded' in result:
+        print "Command %r failed with result:\n%s" % (mysql_upgrade_list, result)
+        print 'Sleeping for %ss and retrying' % sleep
+      else:
+        if mysql_upgrade.returncode == 0:
+          print "MySQL database upgraded with result:\n%s" % result
+        else:
+          print "No need to upgrade MySQL database"
+        mysql_list = [conf['mysql_binary'].strip(), '--no-defaults', '-B', '--user=root', '--socket=%s' % conf['socket']]
+        mysql = subprocess.Popen(mysql_list, stdin=subprocess.PIPE,
+            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+        result = mysql.communicate(conf['mysql_script'])[0]
+        if mysql.returncode is None:
+          mysql.kill()
+        if mysql.returncode != 0:
+          print 'Command %r failed with:\n%s' % (mysql_list, result)
+          print 'Sleeping for %ss and retrying' % sleep
+        else:
+          is_succeed = True
+          print 'SlapOS initialisation script succesfully applied on database.'
+    sys.stdout.flush()
+    sys.stderr.flush()
+    time.sleep(sleep)

slapos/recipe/mysql/template/initmysql.sql.in

+CREATE DATABASE IF NOT EXISTS %(mysql_database)s;
+GRANT ALL PRIVILEGES ON %(mysql_database)s.* TO %(mysql_user)s@'%%' IDENTIFIED BY '%(mysql_password)s';

slapos/recipe/mysql/template/my.cnf.in

+# ERP5 buildout my.cnf template based on my-huge.cnf shipped with mysql
+# The MySQL server
+[mysqld]
+# ERP5 by default requires InnoDB storage. MySQL by default fallbacks to using
+# different engine, like MyISAM. Such behaviour generates problems only, when
+# tables requested as InnoDB are silently created with MyISAM engine.
+#
+# Loud fail is really required in such case.
+sql-mode="NO_ENGINE_SUBSTITUTION"
+
+skip-show-database
+port = %(tcp_port)s
+bind-address = %(ip)s
+socket = %(socket)s
+datadir = %(data_directory)s
+pid-file = %(pid_file)s
+log-error = %(error_log)s
+log-slow-file = %(slow_query_log)s
+long_query_time = 5
+max_allowed_packet = 128M
+query_cache_size = 32M
+
+plugin-load = ha_innodb_plugin.so
+
+# The following are important to configure and depend a lot on to the size of
+# your database and the available resources.
+#innodb_buffer_pool_size = 4G
+#innodb_log_file_size = 256M
+#innodb_log_buffer_size = 8M
+
+# Some dangerous settings you may want to uncomment if you only want
+# performance or less disk access. Useful for unit tests.
+#innodb_flush_log_at_trx_commit = 0
+#innodb_flush_method = nosync
+#innodb_doublewrite = 0
+#sync_frm = 0
+
+# Uncomment the following if you need binary logging, which is recommended
+# on production instances (either for replication or incremental backups).
+#log-bin=mysql-bin
+
+# Force utf8 usage
+collation_server = utf8_unicode_ci
+character_set_server = utf8
+skip-character-set-client-handshake
+
+[mysql]
+no-auto-rehash
+socket = %(socket)s
+
+[mysqlhotcopy]
+interactive-timeout