1106 lines
36 KiB
Python
Executable File
1106 lines
36 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
# Copyright (c) 2016 IBM Corporation.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
# implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
|
|
import calendar
|
|
from datetime import datetime
|
|
import json
|
|
import os
|
|
import sys
|
|
import time
|
|
import traceback
|
|
import yaml
|
|
import argparse
|
|
|
|
from contextlib import contextmanager
|
|
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import sessionmaker
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy import Column, Integer, String, ForeignKey
|
|
from sqlalchemy.sql import insert, update, delete
|
|
from sqlalchemy.sql import and_
|
|
from sqlalchemy.types import TIMESTAMP
|
|
from sqlalchemy.schema import MetaData, Table
|
|
|
|
import sqlalchemy_utils
|
|
from sqlalchemy.exc import OperationalError
|
|
|
|
DEBUG = False
|
|
|
|
metadata = MetaData()
|
|
|
|
|
|
class JSON_encoder_with_DateTime(json.JSONEncoder):
|
|
def default(self, o):
|
|
if isinstance(o, datetime):
|
|
return o.isoformat()
|
|
|
|
return json.JSONEncoder.default(self, o)
|
|
|
|
|
|
# We need to turn BaseHTTPRequestHandler into a "new-style" class for
|
|
# Python 2.x
|
|
# NOTE: URL is over two lines :(
|
|
# http://stackoverflow.com/questions/1713038/super-fails-with-error-typeerror-
|
|
# argument-1-must-be-type-not-classobj
|
|
class OBaseHTTPRequestHandler(BaseHTTPRequestHandler, object):
|
|
pass
|
|
|
|
# We need to pass in conf into MoltenIronHandler, so make a class factory
|
|
# to do that
|
|
# NOTE: URL is over two lines :(
|
|
# http://stackoverflow.com/questions/21631799/how-can-i-pass-parameters-to-a-
|
|
# requesthandler
|
|
def MakeMoltenIronHandlerWithConf(conf):
|
|
class MoltenIronHandler(OBaseHTTPRequestHandler):
|
|
def __init__(self, *args, **kwargs):
|
|
# Note this *needs* to be done before call to super's class!
|
|
self.conf = conf
|
|
super(OBaseHTTPRequestHandler, self).__init__(*args, **kwargs)
|
|
|
|
def do_POST(self):
|
|
CL = 'Content-Length'
|
|
self.data_string = self.rfile.read(int(self.headers[CL]))
|
|
response = self.parse(self.data_string)
|
|
self.send_reply(response)
|
|
|
|
def send_reply(self, response):
|
|
if DEBUG:
|
|
print("send_reply: response = %s" % (response,))
|
|
# get the status code off the response json and send it
|
|
status_code = response['status']
|
|
self.send_response(status_code)
|
|
self.send_header('Content-type', 'application/json')
|
|
self.end_headers()
|
|
self.wfile.write(json.dumps(response,
|
|
cls=JSON_encoder_with_DateTime))
|
|
|
|
def parse(self, request_string):
|
|
"""Handle the request. Returns the response of the request """
|
|
try:
|
|
database = DataBase(self.conf)
|
|
# Try to json-ify the request_string
|
|
request = json.loads(request_string)
|
|
method = request.pop('method')
|
|
if method == 'add':
|
|
response = database.addBMNode(request)
|
|
elif method == 'allocate':
|
|
response = database.allocateBM(request['owner_name'],
|
|
request['number_of_nodes'])
|
|
elif method == 'release':
|
|
response = database.deallocateOwner(request['owner_name'])
|
|
elif method == 'get_field':
|
|
response = database.get_field(request['owner_name'],
|
|
request['field_name'])
|
|
elif method == 'set_field':
|
|
response = database.set_field(request['id'],
|
|
request['key'],
|
|
request['value'])
|
|
elif method == 'status':
|
|
response = database.status()
|
|
elif method == 'delete_db':
|
|
response = database.delete_db()
|
|
database.close()
|
|
del database
|
|
except Exception as e:
|
|
response = {'status': 400, 'message': str(e)}
|
|
|
|
if DEBUG:
|
|
print("parse: response = %s" % (response,))
|
|
|
|
return response
|
|
|
|
return MoltenIronHandler
|
|
|
|
|
|
class Nodes(declarative_base()):
|
|
|
|
__tablename__ = 'Nodes'
|
|
|
|
# from sqlalchemy.dialects.mysql import INTEGER
|
|
|
|
# CREATE TABLE `Nodes` (
|
|
# id INTEGER NOT NULL AUTO_INCREMENT, #@TODO UNSIGNED
|
|
# name VARCHAR(50),
|
|
# ipmi_ip VARCHAR(50),
|
|
# ipmi_user VARCHAR(50),
|
|
# ipmi_password VARCHAR(50),
|
|
# port_hwaddr VARCHAR(50),
|
|
# cpu_arch VARCHAR(50),
|
|
# cpus INTEGER,
|
|
# ram_mb INTEGER,
|
|
# disk_gb INTEGER,
|
|
# status VARCHAR(20),
|
|
# provisioned VARCHAR(50),
|
|
# timestamp TIMESTAMP NULL,
|
|
# PRIMARY KEY (id)
|
|
# )
|
|
|
|
id = Column('id', Integer, primary_key=True)
|
|
name = Column('name', String(50))
|
|
ipmi_ip = Column('ipmi_ip', String(50))
|
|
ipmi_user = Column('ipmi_user', String(50))
|
|
ipmi_password = Column('ipmi_password', String(50))
|
|
port_hwaddr = Column('port_hwaddr', String(50))
|
|
cpu_arch = Column('cpu_arch', String(50))
|
|
cpus = Column('cpus', Integer)
|
|
ram_mb = Column('ram_mb', Integer)
|
|
disk_gb = Column('disk_gb', Integer)
|
|
status = Column('status', String(20))
|
|
provisioned = Column('provisioned', String(50))
|
|
timestamp = Column('timestamp', TIMESTAMP)
|
|
|
|
__table__ = Table(__tablename__,
|
|
metadata,
|
|
id,
|
|
name,
|
|
ipmi_ip,
|
|
ipmi_user,
|
|
ipmi_password,
|
|
port_hwaddr,
|
|
cpu_arch,
|
|
cpus,
|
|
ram_mb,
|
|
disk_gb,
|
|
status,
|
|
provisioned,
|
|
timestamp)
|
|
|
|
def map(self):
|
|
return {key: value for key, value
|
|
in self.__dict__.items()
|
|
if not key.startswith('_') and not callable(key)}
|
|
|
|
def __repr__(self):
|
|
fmt = """<Node(name='%s',
|
|
ipmi_ip='%s',
|
|
ipmi_user='%s',
|
|
ipmi_password='%s',
|
|
port='%s',
|
|
cpu_arch='%s',
|
|
cpus='%d',
|
|
ram='%d',
|
|
disk='%d',
|
|
status='%s',
|
|
provisioned='%s',
|
|
timestamp='%s'/>"""
|
|
fmt = fmt.replace('\n', ' ')
|
|
|
|
return fmt % (self.name,
|
|
self.ipmi_ip,
|
|
self.ipmi_user,
|
|
self.ipmi_password,
|
|
self.port_hwaddr,
|
|
self.cpu_arch,
|
|
self.cpus,
|
|
self.ram_mb,
|
|
self.disk_gb,
|
|
self.status,
|
|
self.provisioned,
|
|
self.timestamp)
|
|
|
|
|
|
class IPs(declarative_base()):
|
|
|
|
__tablename__ = 'IPs'
|
|
|
|
# CREATE TABLE `IPs` (
|
|
# id INTEGER NOT NULL AUTO_INCREMENT, #@TODO INTEGER(unsigned=True)
|
|
# node_id INTEGER, #@TODO UNSIGNED
|
|
# ip VARCHAR(50),
|
|
# PRIMARY KEY (id),
|
|
# FOREIGN KEY(node_id) REFERENCES `Nodes` (id)
|
|
# )
|
|
|
|
id = Column('id',
|
|
Integer,
|
|
primary_key=True)
|
|
node_id = Column('node_id',
|
|
Integer,
|
|
ForeignKey("Nodes.id"))
|
|
ip = Column('ip',
|
|
String(50))
|
|
|
|
__table__ = Table(__tablename__,
|
|
metadata,
|
|
id,
|
|
node_id,
|
|
ip)
|
|
|
|
def __repr__(self):
|
|
|
|
fmt = """<Node(id='%d',
|
|
node_id='%d',
|
|
ip='%s' />"""
|
|
fmt = fmt.replace('\n', ' ')
|
|
|
|
return fmt % (self.id,
|
|
self.node_id,
|
|
self.ip)
|
|
|
|
TYPE_MYSQL = 1
|
|
# Is there a mysql memory path?
|
|
TYPE_SQLITE = 3
|
|
TYPE_SQLITE_MEMORY = 4
|
|
|
|
|
|
class DataBase():
|
|
"""This class may be used access the molten iron database. """
|
|
|
|
def __init__(self,
|
|
config,
|
|
db_type=TYPE_MYSQL):
|
|
self.conf = config
|
|
|
|
self.user = self.conf["sqlUser"]
|
|
self.passwd = self.conf["sqlPass"]
|
|
self.host = "127.0.0.1"
|
|
self.database = "MoltenIron"
|
|
self.db_type = db_type
|
|
|
|
engine = None
|
|
try:
|
|
# Does the database exist?
|
|
engine = self.create_engine()
|
|
c = engine.connect()
|
|
c.close()
|
|
except OperationalError:
|
|
sqlalchemy_utils.create_database(engine.url)
|
|
engine = self.create_engine()
|
|
c = engine.connect()
|
|
c.close()
|
|
self.engine = engine
|
|
|
|
self.create_metadata()
|
|
|
|
self.element_info = [
|
|
# The following are returned from the query call
|
|
|
|
# field_name length special_fmt skip
|
|
("id", 4, int, False),
|
|
("name", 6, str, False),
|
|
("ipmi_ip", 9, str, False),
|
|
("ipmi_user", 11, str, False),
|
|
("ipmi_password", 15, str, False),
|
|
("port_hwaddr", 19, str, False),
|
|
("cpu_arch", 10, str, False),
|
|
("cpus", 6, int, False),
|
|
("ram_mb", 8, int, False),
|
|
("disk_gb", 9, int, False),
|
|
("status", 8, str, False),
|
|
("provisioned", 13, str, False),
|
|
# We add timeString
|
|
("time", 14, float, False),
|
|
]
|
|
self.setup_status()
|
|
|
|
def create_engine(self):
|
|
engine = None
|
|
|
|
if self.db_type == TYPE_MYSQL:
|
|
engine = create_engine("mysql://%s:%s@%s/%s"
|
|
% (self.user,
|
|
self.passwd,
|
|
self.host,
|
|
self.database, ),
|
|
echo=DEBUG)
|
|
elif self.db_type == TYPE_SQLITE_MEMORY:
|
|
engine = create_engine('sqlite:///:memory:',
|
|
echo=DEBUG)
|
|
elif self.db_type == TYPE_SQLITE:
|
|
engine = create_engine("sqlite://%s:%s@%s/%s"
|
|
% (self.user,
|
|
self.passwd,
|
|
self.host,
|
|
self.database, ),
|
|
echo=DEBUG)
|
|
|
|
return engine
|
|
|
|
def close(self):
|
|
if DEBUG:
|
|
print("close: Calling engine.dispose()")
|
|
self.engine.dispose()
|
|
if DEBUG:
|
|
print("close: Finished")
|
|
|
|
def get_session(self):
|
|
"""Get a SQL academy session from the pool """
|
|
Session = sessionmaker(bind=self.engine)
|
|
session = Session()
|
|
|
|
return session
|
|
|
|
def get_connection(self):
|
|
"""Get a SQL academy connection from the pool """
|
|
conn = self.engine.connect()
|
|
|
|
return conn
|
|
|
|
@contextmanager
|
|
def session_scope(self):
|
|
"""Provide a transactional scope around a series of operations. """
|
|
session = self.get_session()
|
|
try:
|
|
yield session
|
|
session.commit()
|
|
except Exception as e:
|
|
if DEBUG:
|
|
print("Exception caught in session_scope: %s %s"
|
|
% (e, traceback.format_exc(4), ))
|
|
session.rollback()
|
|
raise
|
|
finally:
|
|
session.close()
|
|
|
|
@contextmanager
|
|
def connection_scope(self):
|
|
"""Provide a transactional scope around a series of operations. """
|
|
conn = self.get_connection()
|
|
try:
|
|
yield conn
|
|
except Exception as e:
|
|
if DEBUG:
|
|
print("Exception caught in connection_scope: %s" % (e,))
|
|
raise
|
|
finally:
|
|
conn.close()
|
|
|
|
def delete_db(self):
|
|
# Instead of:
|
|
# IPs.__table__.drop(self.engine, checkfirst=True)
|
|
# Nodes.__table__.drop(self.engine, checkfirst=True)
|
|
metadata.drop_all(self.engine, checkfirst=True)
|
|
|
|
return {'status': 200}
|
|
|
|
def create_metadata(self):
|
|
# Instead of:
|
|
# Nodes.__table__.create(self.engine, checkfirst=True)
|
|
# IPs.__table__.create(self.engine, checkfirst=True)
|
|
if DEBUG:
|
|
print("create_metadata: Calling metadata.create_all")
|
|
metadata.create_all(self.engine, checkfirst=True)
|
|
if DEBUG:
|
|
print("create_metadata: Finished")
|
|
|
|
def to_timestamp(self, ts):
|
|
timestamp = None
|
|
if self.db_type == TYPE_MYSQL:
|
|
timestamp = time.strftime("%Y-%m-%d %H:%M:%S", ts)
|
|
elif self.db_type in (TYPE_SQLITE, TYPE_SQLITE_MEMORY):
|
|
c = calendar.timegm(ts)
|
|
timestamp = datetime.fromtimestamp(c)
|
|
return timestamp
|
|
|
|
def from_timestamp(self, timestamp):
|
|
ts = None
|
|
if self.db_type == TYPE_MYSQL:
|
|
ts = time.strptime(timestamp, "%Y-%m-%d %H:%M:%S")
|
|
elif self.db_type == TYPE_SQLITE:
|
|
ts = timestamp.timetuple()
|
|
return ts
|
|
|
|
def allocateBM(self, owner_name, how_many):
|
|
"""Checkout machines from the database and return necessary info """
|
|
|
|
try:
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
# Get a list of IDs for nodes that are free
|
|
count = session.query(Nodes).filter_by(status="ready").count()
|
|
|
|
# If we don't have enough nodes return an error
|
|
if (count < how_many):
|
|
fmt = "Not enough available nodes found."
|
|
fmt += " Found %d, requested %d"
|
|
return {'status': 404,
|
|
'message': fmt % (count, how_many, )}
|
|
|
|
nodes_allocated = {}
|
|
|
|
for i in range(how_many):
|
|
first_ready = session.query(Nodes)
|
|
first_ready = first_ready.filter_by(status="ready")
|
|
first_ready = first_ready.first()
|
|
|
|
id = first_ready.id
|
|
# We have everything we need from node
|
|
|
|
log(self.conf,
|
|
"allocating node id: %d for %s" % (id, owner_name, ))
|
|
|
|
timestamp = self.to_timestamp(time.gmtime())
|
|
|
|
# Update the node to the in use state
|
|
stmt = update(Nodes)
|
|
stmt = stmt.where(Nodes.id == id)
|
|
stmt = stmt.values(status="dirty",
|
|
provisioned=owner_name,
|
|
timestamp=timestamp)
|
|
conn.execute(stmt)
|
|
|
|
# Refresh the data
|
|
session.close()
|
|
session = self.get_session()
|
|
|
|
first_ready = session.query(Nodes).filter_by(id=id).one()
|
|
|
|
first_ready_node = first_ready.map()
|
|
|
|
# Query the associated IP table
|
|
ips = session.query(IPs).filter_by(node_id=first_ready.id)
|
|
|
|
allocation_pool = []
|
|
for ip in ips:
|
|
allocation_pool.append(ip.ip)
|
|
first_ready_node['allocation_pool'] \
|
|
= ','.join(allocation_pool)
|
|
|
|
# Add the node to the nodes dict
|
|
nodes_allocated['node_%d' % (id, )] = first_ready_node
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in deallocateBM: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200, 'nodes': nodes_allocated}
|
|
|
|
def deallocateBM(self, id):
|
|
"""Given the ID of a node (or the IPMI IP), de-allocate that node.
|
|
|
|
This changes the node status of that node from "used" to "ready."
|
|
"""
|
|
|
|
try:
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
query = session.query(Nodes.id, Nodes.ipmi_ip, Nodes.name)
|
|
|
|
if (type(id) == str or type(id) == unicode) and ("." in id):
|
|
# If an ipmi_ip was passed
|
|
query = query.filter_by(ipmi_ip=id)
|
|
else:
|
|
query = query.filter_by(id=id)
|
|
|
|
node = query.one()
|
|
|
|
log(self.conf,
|
|
"de-allocating node (%d, %s)" % (node.id, node.ipmi_ip,))
|
|
|
|
stmt = update(Nodes)
|
|
stmt = stmt.where(Nodes.id == node.id)
|
|
stmt = stmt.values(status="ready",
|
|
provisioned="",
|
|
timestamp=None)
|
|
|
|
conn.execute(stmt)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in deallocateBM: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200}
|
|
|
|
def deallocateOwner(self, owner_name):
|
|
"""Deallocate all nodes in use by a given BM owner. """
|
|
|
|
try:
|
|
with self.session_scope() as session:
|
|
nodes = session.query(Nodes.id)
|
|
nodes = nodes.filter_by(provisioned=owner_name)
|
|
|
|
if nodes.count() == 0:
|
|
message = "No nodes are owned by %s" % (owner_name,)
|
|
|
|
return {'status': 400, 'message': message}
|
|
|
|
for node in nodes:
|
|
self.deallocateBM(node.id)
|
|
except Exception as e:
|
|
if DEBUG:
|
|
print("Exception caught in deallocateOwner: %s" % (e,))
|
|
message = "Failed to deallocate node with ID %d" % (node.id,)
|
|
return {'status': 400, 'message': message}
|
|
|
|
return {'status': 200}
|
|
|
|
def addBMNode(self, node):
|
|
"""Add a new node to molten iron.
|
|
|
|
ex:
|
|
node = {u'name': u'test',
|
|
u'ipmi_user': u'user',
|
|
u'port_hwaddr': u'de:ad:be:ef:00:01',
|
|
u'disk_gb': 32,
|
|
u'cpu_arch': u'ppc64el',
|
|
u'ram_mb': 2048,
|
|
u'cpus': 8,
|
|
u'allocation_pool': u'0.0.0.1,0.0.0.2',
|
|
u'ipmi_password': u'password',
|
|
u'ipmi_ip': u'0.0.0.0'}
|
|
"""
|
|
|
|
try:
|
|
if DEBUG:
|
|
print("addBMNode: node = %s" % (node, ))
|
|
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
# Check if it already exists
|
|
query = session.query(Nodes)
|
|
query = query.filter_by(name=node['name'])
|
|
count = query.count()
|
|
|
|
if count == 1:
|
|
return {'status': 400, 'message': "Node already exists"}
|
|
|
|
log(self.conf,
|
|
"adding node %(name)s ipmi_ip: %(ipmi_ip)s" % node)
|
|
|
|
# Add Node to database
|
|
# Note: ID is always 0 as it is an auto-incrementing field
|
|
stmt = insert(Nodes)
|
|
stmt = stmt.values(name=node['name'])
|
|
stmt = stmt.values(ipmi_ip=node['ipmi_ip'])
|
|
stmt = stmt.values(ipmi_user=node['ipmi_user'])
|
|
stmt = stmt.values(ipmi_password=node['ipmi_password'])
|
|
stmt = stmt.values(port_hwaddr=node['port_hwaddr'])
|
|
stmt = stmt.values(cpu_arch=node['cpu_arch'])
|
|
stmt = stmt.values(cpus=node['cpus'])
|
|
stmt = stmt.values(ram_mb=node['ram_mb'])
|
|
stmt = stmt.values(disk_gb=node['disk_gb'])
|
|
stmt = stmt.values(status='ready')
|
|
if 'status' in node:
|
|
stmt = stmt.values(status=node['status'])
|
|
if 'provisioned' in node:
|
|
stmt = stmt.values(provisioned=node['provisioned'])
|
|
if 'timestamp' in node:
|
|
timestamp_str = node['timestamp']
|
|
if DEBUG:
|
|
print("timestamp_str = %s" % (timestamp_str, ))
|
|
if len(timestamp_str) != 0 and timestamp_str != "-1":
|
|
ts = time.gmtime(float(timestamp_str))
|
|
timestamp = self.to_timestamp(ts)
|
|
if DEBUG:
|
|
print("timestamp = %s" % (timestamp, ))
|
|
stmt = stmt.values(timestamp=timestamp)
|
|
if DEBUG:
|
|
print(stmt.compile().params)
|
|
|
|
conn.execute(stmt)
|
|
|
|
# Refresh the data
|
|
session.close()
|
|
session = self.get_session()
|
|
|
|
query = session.query(Nodes).filter_by(name=node['name'])
|
|
new_node = query.one()
|
|
|
|
# new_node is now a proper Node with an id
|
|
|
|
# Add IPs to database
|
|
# Note: id is always 0 as it is an auto-incrementing field
|
|
ips = node['allocation_pool'].split(',')
|
|
for ip in ips:
|
|
stmt = insert(IPs)
|
|
stmt = stmt.values(node_id=new_node.id, ip=ip)
|
|
|
|
if DEBUG:
|
|
print(stmt.compile().params)
|
|
|
|
conn.execute(stmt)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in addBMNode: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200}
|
|
|
|
def removeBMNode(self, ID, force):
|
|
"""Remove a node from molten iron
|
|
|
|
If force is False it will not remove nodes that are in use. If force
|
|
is True then it will always remove the node.
|
|
"""
|
|
|
|
try:
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
query = session.query(Nodes.id, Nodes.ipmi_ip, Nodes.name)
|
|
query = query.filter_by(id=int(ID))
|
|
query = query.one()
|
|
|
|
log(self.conf,
|
|
("deleting node (id=%d, ipmi_ip=%s, name=%s"
|
|
% (query.id, query.ipmi_ip, query.name,)))
|
|
|
|
ips = session.query(IPs).filter_by(node_id=int(ID))
|
|
for ip in ips:
|
|
stmt = delete(IPs)
|
|
stmt = stmt.where(IPs.id == ip.id)
|
|
conn.execute(stmt)
|
|
|
|
stmt = delete(Nodes)
|
|
|
|
if force:
|
|
stmt = stmt.where(and_(Nodes.id == query.id,
|
|
Nodes.status != "used"))
|
|
else:
|
|
stmt = stmt.where(Nodes.id == query.id)
|
|
|
|
conn.execute(stmt)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in removeBMNode: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200}
|
|
|
|
def cull(self, maxSeconds):
|
|
"""If any node has been in use for longer than maxSeconds, deallocate
|
|
that node.
|
|
|
|
Nodes that are deallocated in this way get their state set to "dirty".
|
|
They are also scheduled for cleaning.
|
|
"""
|
|
|
|
if DEBUG:
|
|
print("cull: maxSeconds = %s" % (maxSeconds, ))
|
|
|
|
nodes_culled = {}
|
|
|
|
try:
|
|
with self.session_scope() as session:
|
|
|
|
nodes = session.query(Nodes)
|
|
|
|
if DEBUG:
|
|
print("There are %d nodes" % (nodes.count(), ))
|
|
|
|
for node in nodes:
|
|
|
|
if DEBUG:
|
|
print(node)
|
|
|
|
if node.timestamp in ('', '-1', None):
|
|
continue
|
|
|
|
currentTime = self.to_timestamp(time.gmtime())
|
|
elapsedTime = currentTime - node.timestamp
|
|
if DEBUG:
|
|
print("currentTime = %s"
|
|
% (currentTime, ))
|
|
print("node.timestamp = %s"
|
|
% (node.timestamp, ))
|
|
print("elapsedTime = %s"
|
|
% (elapsedTime, ))
|
|
print("elapsedTime.seconds = %s"
|
|
% (elapsedTime.seconds, ))
|
|
|
|
if elapsedTime.seconds < int(maxSeconds):
|
|
continue
|
|
|
|
logstring = ("node %d has been allocated for too long."
|
|
% (node.id,))
|
|
log(self.conf, logstring)
|
|
|
|
if DEBUG:
|
|
print(logstring)
|
|
|
|
self.deallocateBM(node.id)
|
|
|
|
# Add the node to the nodes dict
|
|
nodes_culled['node_%d' % (node.id, )] = node.map()
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in cull: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200, 'nodes': nodes_culled}
|
|
|
|
def doClean(self, node_id):
|
|
"""This function is used to clean a node. """
|
|
|
|
try:
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
query = session.query(Nodes)
|
|
query = query.filter_by(id=node_id)
|
|
node = query.one()
|
|
|
|
if node.status in ('ready', ''):
|
|
return {'status': 400,
|
|
'message': 'The node at %d has status %s'
|
|
% (node.id, node.status,)}
|
|
|
|
logstring = "The node at %s has been cleaned." % \
|
|
(node.ipmi_ip,)
|
|
log(self.conf, logstring)
|
|
|
|
stmt = update(Nodes)
|
|
stmt = stmt.where(Nodes.id == node_id)
|
|
stmt = stmt.values(status="ready")
|
|
|
|
conn.execute(stmt)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in doClean: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200}
|
|
|
|
# @TODO shouldn't it return allocation_pool rather than ipmi_ip?
|
|
def get_ips(self, owner_name):
|
|
"""Return all IPs allocated to a given node owner
|
|
|
|
IPs are returned as a list of strings
|
|
"""
|
|
|
|
ips = []
|
|
|
|
try:
|
|
with self.session_scope() as session:
|
|
|
|
query = session.query(Nodes)
|
|
nodes = query.filter_by(provisioned=owner_name)
|
|
|
|
for node in nodes:
|
|
ips.append(node.ipmi_ip)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in get_ips: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200, 'ips': ips}
|
|
|
|
def get_field(self, owner_name, field):
|
|
"""Return entries list with id, field for a given owner, field. """
|
|
|
|
if not hasattr(Nodes, field):
|
|
return {'status': 400,
|
|
'message': 'field %s does not exist' % (field,)}
|
|
|
|
results = []
|
|
|
|
try:
|
|
with self.session_scope() as session:
|
|
|
|
query = session.query(Nodes)
|
|
nodes = query.filter_by(provisioned=owner_name)
|
|
|
|
if DEBUG:
|
|
print("There are %d entries provisioned by %s"
|
|
% (nodes.count(), owner_name,))
|
|
|
|
if nodes.count() == 0:
|
|
return {'status': 404,
|
|
'message': '%s does not own any nodes'
|
|
% owner_name}
|
|
|
|
for node in nodes:
|
|
result = {'id': node.id}
|
|
result['field'] = getattr(node, field)
|
|
|
|
results.append(result)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in get_field: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200, 'result': results}
|
|
|
|
def set_field(self, id, key, value):
|
|
"""Given an identifying id, set specified key to the passed value. """
|
|
|
|
if not hasattr(Nodes, key):
|
|
return {'status': 400,
|
|
'message': 'field %s does not exist' % (key,)}
|
|
|
|
try:
|
|
with self.session_scope() as session, \
|
|
self.connection_scope() as conn:
|
|
|
|
query = session.query(Nodes)
|
|
nodes = query.filter_by(id=id)
|
|
|
|
if nodes.count() == 0:
|
|
return {'status': 404,
|
|
'message': 'Node with id of %s does not exist!'
|
|
% id}
|
|
|
|
nodes.one()
|
|
|
|
kv = {key: value}
|
|
|
|
stmt = update(Nodes)
|
|
stmt = stmt.where(Nodes.id == id)
|
|
stmt = stmt.values(**kv)
|
|
|
|
conn.execute(stmt)
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in set_field: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200}
|
|
|
|
def setup_status(self):
|
|
"""Setup the status formatting strings depending on skipped elements,
|
|
lengths, and types.
|
|
"""
|
|
|
|
self.result_separator = "+"
|
|
for (_, length, _, skip) in self.element_info:
|
|
if skip:
|
|
continue
|
|
self.result_separator += '-' * (1 + length + 1) + "+"
|
|
|
|
self.description_line = "+"
|
|
for (field, length, _, skip) in self.element_info:
|
|
if skip:
|
|
continue
|
|
self.description_line += (" " +
|
|
field +
|
|
' ' * (length - len(field)) +
|
|
" +")
|
|
|
|
index = 0
|
|
self.format_line = "|"
|
|
for (_, length, special_fmt, skip) in self.element_info:
|
|
if skip:
|
|
continue
|
|
if special_fmt is int:
|
|
self.format_line += " {%d:<%d} |" % (index, length)
|
|
elif special_fmt is str:
|
|
self.format_line += " {%d:%d} |" % (index, length)
|
|
elif special_fmt is float:
|
|
self.format_line += " {%d:<%d.%d} |" \
|
|
% (index, length, length - 2)
|
|
index += 1
|
|
|
|
def status(self):
|
|
"""Return a table that details the state of each bare metal node.
|
|
|
|
Currently this table is being created manually, there is probably a
|
|
better way to be doing this.
|
|
"""
|
|
|
|
result = ""
|
|
|
|
try:
|
|
with self.session_scope() as session:
|
|
|
|
query = session.query(Nodes)
|
|
|
|
result += self.result_separator + "\n"
|
|
result += self.description_line + "\n"
|
|
result += self.result_separator + "\n"
|
|
|
|
for node in query:
|
|
|
|
timeString = ""
|
|
try:
|
|
if node.timestamp is not None:
|
|
elapsedTime = datetime.utcnow() - node.timestamp
|
|
timeString = str(elapsedTime)
|
|
except Exception:
|
|
pass
|
|
|
|
elements = (node.id,
|
|
node.name,
|
|
node.ipmi_ip,
|
|
node.ipmi_user,
|
|
node.ipmi_password,
|
|
node.port_hwaddr,
|
|
node.cpu_arch,
|
|
node.cpus,
|
|
node.ram_mb,
|
|
node.disk_gb,
|
|
node.status,
|
|
node.provisioned,
|
|
timeString)
|
|
|
|
new_elements = []
|
|
index = 0
|
|
for (_, _, _, skip) in self.element_info:
|
|
if not skip:
|
|
new_elements.append(elements[index])
|
|
index += 1
|
|
|
|
result += self.format_line.format(*new_elements) + "\n"
|
|
|
|
result += self.result_separator + "\n"
|
|
|
|
except Exception as e:
|
|
|
|
if DEBUG:
|
|
print("Exception caught in status: %s" % (e,))
|
|
|
|
# Don't send the exception object as it is not json serializable!
|
|
return {'status': 400, 'message': str(e)}
|
|
|
|
return {'status': 200, 'result': result}
|
|
|
|
|
|
def listener(conf):
|
|
mi_addr = str(conf['serverIP'])
|
|
mi_port = int(conf['mi_port'])
|
|
handler_class = MakeMoltenIronHandlerWithConf(conf)
|
|
print('Listening... to %s:%d' % (mi_addr, mi_port,))
|
|
moltenirond = HTTPServer((mi_addr, mi_port), handler_class)
|
|
moltenirond.serve_forever()
|
|
|
|
|
|
def cleanup():
|
|
"""This function kills any running instances of molten iron.
|
|
|
|
This should be called when starting a new instance of molten iron.
|
|
"""
|
|
ps = os.popen("ps aux | grep python | grep moltenIronD.py").read()
|
|
processes = ps.split("\n")
|
|
pids = []
|
|
for process in processes:
|
|
if "grep" in process:
|
|
continue
|
|
words = process.split(" ")
|
|
actual = []
|
|
for word in words:
|
|
if word != "":
|
|
actual += [word]
|
|
words = actual
|
|
if len(words) > 1:
|
|
pids += [words[1]]
|
|
myPID = os.getpid()
|
|
|
|
for pid in pids:
|
|
if int(pid) == int(myPID):
|
|
continue
|
|
os.system("kill -9 " + pid)
|
|
|
|
|
|
def log(conf, message):
|
|
"""Write a message to the log file. """
|
|
cleanLogs(conf)
|
|
logdir = conf["logdir"]
|
|
now = datetime.today()
|
|
|
|
fname = str(now.day) + "-" + str(now.month) \
|
|
+ "-" + str(now.year) + ".log"
|
|
|
|
timestamp = "{0:0>2}".format(str(now.hour)) + ":" + \
|
|
"{0:0>2}".format(str(now.minute)) \
|
|
+ ":" + "{0:0>2}".format(str(now.second))
|
|
|
|
message = timestamp + " " + message + "\n"
|
|
|
|
# check if logdir exists, if not create it
|
|
if not os.path.isdir(logdir):
|
|
os.popen("mkdir " + logdir)
|
|
|
|
fobj = open(logdir + "/" + fname, "a")
|
|
fobj.write(message)
|
|
fobj.close()
|
|
|
|
|
|
def cleanLogs(conf):
|
|
"""Find and delete log files that have been around for too long. """
|
|
logdir = conf["logdir"]
|
|
maxDays = conf["maxLogDays"]
|
|
if not os.path.isdir(logdir):
|
|
return
|
|
now = datetime.today()
|
|
logs = os.popen("ls " + logdir).read().split("\n")
|
|
for log in logs:
|
|
elements = log[:-1 * len(".log")].split("-")
|
|
if len(elements) != 3:
|
|
continue
|
|
newDate = datetime(int(elements[2]),
|
|
int(elements[1]),
|
|
int(elements[0]))
|
|
if (now - newDate).days > maxDays:
|
|
os.popen("rm " + logdir + "/" + log)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
parser = argparse.ArgumentParser(description="Molteniron daemon")
|
|
parser.add_argument("-c",
|
|
"--conf-dir",
|
|
action="store",
|
|
type=str,
|
|
dest="conf_dir",
|
|
help="The directory where configuration is stored")
|
|
|
|
args = parser.parse_args ()
|
|
|
|
if args.conf_dir:
|
|
if not os.path.isdir (args.conf_dir):
|
|
msg = "Error: %s is not a valid directory" % (args.conf_dir, )
|
|
print >> sys.stderr, msg
|
|
sys.exit(1)
|
|
|
|
yaml_file = os.path.realpath("%s/conf.yaml" % (args.conf_dir, ))
|
|
else:
|
|
yaml_file = "/usr/local/etc/molteniron/conf.yaml"
|
|
|
|
with open(yaml_file, "r") as fobj:
|
|
conf = yaml.load(fobj)
|
|
|
|
listener(conf)
|