def change_data_dir(self, password=None):
data_dir = mssapi.config.get('MySQL', 'data_dir', '/mnt')
fresh_install = False
is_mysql_running_command = ShellCommand('mysqladmin ping') # exit status 0 if mysql is running
is_mysql_running_command.run()
if is_mysql_running_command.getStatus() == 0:
# mysql is running. This is the state apt-get will leave it in. If it isn't running,
# that means mysql was already installed on the AMI and there's no need to stop it,
# saving 40 seconds on instance startup.
time.sleep(10) #trying to stop mysql immediately after installing it fails
# We need to wait until mysql creates the root account before we kill it
# or bad things will happen
i = 0
while self.run("echo 'quit' | mysql -u root") != 0 and i < 5:
time.sleep(5)
i = i + 1
self.run('/etc/init.d/mysql stop')
self.run("pkill -9 mysql")
mysql_path = os.path.join(data_dir, 'mysql')
if not os.path.exists(mysql_path):
self.run('mkdir %s' % mysql_path)
fresh_install = True
self.run('chown -R mysql:mysql %s' % mysql_path)
fp = open('/etc/mysql/conf.d/use_mnt.cnf', 'w')
fp.write('# created by pyami\n')
fp.write('# use the %s volume for data\n' % data_dir)
fp.write('[mysqld]\n')
fp.write('datadir = %s\n' % mysql_path)
fp.write('log_bin = %s\n' % os.path.join(mysql_path, 'mysql-bin.log'))
fp.close()
if fresh_install:
self.run('cp -pr /var/lib/mysql/* %s/' % mysql_path)
self.start('mysql')
else:
#get the password ubuntu expects to use:
config_parser = ConfigParser()
config_parser.read('/etc/mysql/debian.cnf')
password = config_parser.get('client', 'password')
# start the mysql deamon, then mysql with the required grant statement piped into it:
self.start('mysql')
time.sleep(10) #time for mysql to start
grant_command = "echo \"GRANT ALL PRIVILEGES ON *.* TO 'debian-sys-maint'@'localhost' IDENTIFIED BY '%s' WITH GRANT OPTION;\" | mysql" % password
while self.run(grant_command) != 0:
time.sleep(5)
def __init__(self, path=None, fp=None, do_load=True):
# We don't use ``super`` here, because ``ConfigParser`` still uses
# old-style classes.
ConfigParser.__init__(self, {
'working_dir': '/mnt/pyami',
'debug': '0'
})
if do_load:
if path:
self.load_from_path(path)
elif fp:
self.readfp(fp)
else:
self.read(MssapiConfigLocations)
if "AWS_CREDENTIAL_FILE" in os.environ:
full_path = expanduser(os.environ['AWS_CREDENTIAL_FILE'])
try:
self.load_credential_file(full_path)
except IOError:
warnings.warn('Unable to load AWS_CREDENTIAL_FILE (%s)' %
full_path)
def save_option(self, path, section, option, value):
"""
Write the specified Section.Option to the config file specified by path.
Replace any previous value. If the path doesn't exist, create it.
Also add the option the the in-memory config.
"""
config = ConfigParser()
config.read(path)
if not config.has_section(section):
config.add_section(section)
config.set(section, option, value)
fp = open(path, 'w')
config.write(fp)
fp.close()
if not self.has_section(section):
self.add_section(section)
self.set(section, option, value)
def getfloat(self, section, name, default=0.0):
try:
val = ConfigParser.getfloat(self, section, name)
except:
val = float(default)
return val
def get(self, section, name, default=None):
try:
val = ConfigParser.get(self, section, name)
except:
val = default
return val
