147 lines
4.7 KiB
Python
147 lines
4.7 KiB
Python
import textwrap
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from django.utils.translation import ugettext_lazy as _
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from orchestra.apps.orchestration import ServiceController
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from orchestra.apps.resources import ServiceMonitor
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from . import settings
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class MySQLBackend(ServiceController):
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verbose_name = "MySQL database"
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model = 'databases.Database'
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default_route_match = "database.type == 'mysql'"
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def save(self, database):
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if database.type != database.MYSQL:
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return
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context = self.get_context(database)
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# Not available on delete()
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context['owner'] = database.owner
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self.append(
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"mysql -e 'CREATE DATABASE `%(database)s`;' || true" % context
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)
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# clean previous privileges
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self.append("""mysql mysql -e 'DELETE FROM db WHERE db = "%(database)s";'""" % context)
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for user in database.users.all():
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context.update({
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'username': user.username,
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'grant': 'WITH GRANT OPTION' if user == context['owner'] else ''
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})
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self.append(textwrap.dedent("""\
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mysql -e 'GRANT ALL PRIVILEGES ON `%(database)s`.* TO "%(username)s"@"%(host)s" %(grant)s;' \
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""") % context
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)
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def delete(self, database):
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if database.type != database.MYSQL:
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return
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context = self.get_context(database)
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self.append("mysql -e 'DROP DATABASE `%(database)s`;'" % context)
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self.append("mysql mysql -e 'DELETE FROM db WHERE db = \"%(database)s\";'" % context)
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def commit(self):
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self.append("mysql -e 'FLUSH PRIVILEGES;'")
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def get_context(self, database):
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return {
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'database': database.name,
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'host': settings.DATABASES_DEFAULT_HOST,
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}
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class MySQLUserBackend(ServiceController):
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verbose_name = "MySQL user"
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model = 'databases.DatabaseUser'
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default_route_match = "databaseuser.type == 'mysql'"
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def save(self, user):
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if user.type != user.MYSQL:
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return
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context = self.get_context(user)
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self.append(textwrap.dedent("""\
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mysql -e 'CREATE USER "%(username)s"@"%(host)s";' || true \
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""") % context
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)
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self.append(textwrap.dedent("""\
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mysql -e 'UPDATE mysql.user SET Password="%(password)s" WHERE User="%(username)s";' \
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""") % context
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)
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def delete(self, user):
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if user.type != user.MYSQL:
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return
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context = self.get_context(user)
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self.append(textwrap.dedent("""\
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mysql -e 'DROP USER "%(username)s"@"%(host)s";' \
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""") % context
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)
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def commit(self):
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self.append("mysql -e 'FLUSH PRIVILEGES;'")
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def get_context(self, user):
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return {
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'username': user.username,
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'password': user.password,
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'host': settings.DATABASES_DEFAULT_HOST,
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}
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class MysqlDisk(ServiceMonitor):
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model = 'databases.Database'
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verbose_name = _("MySQL disk")
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def exceeded(self, db):
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if db.type != db.MYSQL:
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return
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context = self.get_context(db)
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self.append(textwrap.dedent("""\
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mysql -e 'UPDATE db SET Insert_priv="N", Create_priv="N" WHERE Db="%(db_name)s";'\
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""") % context
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)
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def recovery(self, db):
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if db.type != db.MYSQL:
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return
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context = self.get_context(db)
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self.append(textwrap.dedent("""\
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mysql -e 'UPDATE db SET Insert_priv="Y", Create_priv="Y" WHERE Db="%(db_name)s";'\
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""") % context
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)
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def prepare(self):
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super(MysqlDisk, self).prepare()
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self.append(textwrap.dedent("""\
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function monitor () {
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{ du -bs "/var/lib/mysql/$1" || echo 0; } | awk {'print $1'}
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}"""))
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# Slower way
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#self.append(textwrap.dedent("""\
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# function monitor () {
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# mysql -B -e "
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# SELECT IFNULL(sum(data_length + index_length), 0) 'Size'
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# FROM information_schema.TABLES
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# WHERE table_schema = '$1';
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# " | tail -n 1
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# }"""))
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def monitor(self, db):
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if db.type != db.MYSQL:
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return
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context = self.get_context(db)
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self.append("echo %(db_id)s $(monitor %(db_name)s)" % context)
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def monitor(self, db):
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if db.type != db.MYSQL:
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return
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context = self.get_context(db)
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self.append('echo %(db_id)s $(monitor "%(db_name)s")' % context)
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def get_context(self, db):
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return {
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'db_name': db.name,
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'db_id': db.pk,
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}
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