proxstar/proxstar/tasks.py
2019-11-01 17:35:51 -04:00

213 lines
7.5 KiB
Python

import logging
import os
import time
import psycopg2
import requests
from flask import Flask
from rq import get_current_job
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from proxstar.db import Base, get_vm_expire, delete_vm_expire, datetime, store_pool_cache, get_template
from proxstar.mail import send_vm_expire_email, send_rtp_vm_delete_email
from proxstar.proxmox import connect_proxmox, get_pools
from proxstar.starrs import get_next_ip, register_starrs, delete_starrs
from proxstar.user import User, get_vms_for_rtp
from proxstar.vm import VM, clone_vm, create_vm
from proxstar.vnc import send_stop_ssh_tunnel
logging.basicConfig(
format='%(asctime)s %(levelname)s %(message)s', level=logging.INFO)
app = Flask(__name__)
if os.path.exists(
os.path.join(
app.config.get('ROOT_DIR', os.getcwd()), 'config.local.py')):
config = os.path.join(
app.config.get('ROOT_DIR', os.getcwd()), 'config.local.py')
else:
config = os.path.join(app.config.get('ROOT_DIR', os.getcwd()), 'config.py')
app.config.from_pyfile(config)
def connect_db():
engine = create_engine(app.config['SQLALCHEMY_DATABASE_URI'])
Base.metadata.bind = engine
dbsession = sessionmaker(bind=engine)
db = dbsession()
return db
def connect_starrs():
starrs = psycopg2.connect(
"dbname='{}' user='{}' host='{}' password='{}'".format(
app.config['STARRS_DB_NAME'], app.config['STARRS_DB_USER'],
app.config['STARRS_DB_HOST'], app.config['STARRS_DB_PASS']))
return starrs
def set_job_status(job, status):
job.meta['status'] = status
job.save_meta()
def create_vm_task(user, name, cores, memory, disk, iso):
with app.app_context():
job = get_current_job()
proxmox = connect_proxmox()
db = connect_db()
starrs = connect_starrs()
logging.info('[{}] Creating VM.'.format(name))
set_job_status(job, 'creating VM')
vmid = create_vm(proxmox, user, name, cores, memory, disk, iso)
logging.info(
'[{}] Waiting until Proxmox is done provisioning.'.format(name))
set_job_status(job, 'waiting for Proxmox')
timeout = 20
retry = 0
while retry < timeout:
if not VM(vmid).is_provisioned():
retry += 1
time.sleep(3)
continue
break
if retry == timeout:
logging.info('[{}] Failed to provision, deleting.'.format(name))
set_job_status(job, 'failed to provision')
delete_vm_task(vmid)
return
logging.info('[{}] Registering in STARRS.'.format(name))
set_job_status(job, 'registering in STARRS')
vm = VM(vmid)
ip = get_next_ip(starrs, app.config['STARRS_IP_RANGE'])
register_starrs(starrs, name, app.config['STARRS_USER'], vm.get_mac(),
ip)
set_job_status(job, 'setting VM expiration')
get_vm_expire(db, vmid, app.config['VM_EXPIRE_MONTHS'])
logging.info('[{}] VM successfully provisioned.'.format(name))
set_job_status(job, 'complete')
def delete_vm_task(vmid):
with app.app_context():
db = connect_db()
starrs = connect_starrs()
vm = VM(vmid)
# do this before deleting the VM since it is hard to reconcile later
delete_starrs(starrs, vm.name)
if vm.status != 'stopped':
vm.stop()
retry = 0
while retry < 10:
time.sleep(3)
if vm.status == 'stopped':
break
retry += 1
vm.delete()
delete_vm_expire(db, vmid)
def process_expiring_vms_task():
with app.app_context():
proxmox = connect_proxmox()
db = connect_db()
connect_starrs()
pools = get_pools(proxmox, db)
expired_vms = []
for pool in pools:
user = User(pool)
expiring_vms = []
vms = user.vms
for vm in vms:
vm = VM(vm['vmid'])
days = (vm.expire - datetime.date.today()).days
if days in [10, 7, 3, 1, 0, -1, -2, -3, -4, -5, -6]:
expiring_vms.append([vm.id, vm.name, days])
if days <= 0:
expired_vms.append([vm.id, vm.name, days])
vm.stop()
elif days <= -7:
logging.info(
'Deleting {} ({}) as it has been at least a week since expiration.'
.format(vm.name, vm.id))
send_stop_ssh_tunnel(vm.id)
delete_vm_task(vm.id)
if expiring_vms:
send_vm_expire_email(pool, expiring_vms)
if expired_vms:
send_rtp_vm_delete_email(expired_vms)
def generate_pool_cache_task():
with app.app_context():
proxmox = connect_proxmox()
db = connect_db()
pools = get_vms_for_rtp(proxmox, db)
store_pool_cache(db, pools)
def setup_template_task(template_id, name, user, ssh_key, cores, memory):
with app.app_context():
job = get_current_job()
proxmox = connect_proxmox()
starrs = connect_starrs()
db = connect_db()
logging.info('[{}] Retrieving template info for template {}.'.format(
name, template_id))
get_template(db, template_id)
logging.info('[{}] Cloning template {}.'.format(name, template_id))
set_job_status(job, 'cloning template')
vmid = clone_vm(proxmox, template_id, name, user)
logging.info(
'[{}] Waiting until Proxmox is done provisioning.'.format(name))
set_job_status(job, 'waiting for Proxmox')
timeout = 20
retry = 0
while retry < timeout:
if not VM(vmid).is_provisioned():
retry += 1
time.sleep(3)
continue
break
if retry == timeout:
logging.info('[{}] Failed to provision, deleting.'.format(name))
set_job_status(job, 'failed to provision')
delete_vm_task(vmid)
return
logging.info('[{}] Registering in STARRS.'.format(name))
set_job_status(job, 'registering in STARRS')
vm = VM(vmid)
ip = get_next_ip(starrs, app.config['STARRS_IP_RANGE'])
register_starrs(starrs, name, app.config['STARRS_USER'], vm.get_mac(),
ip)
get_vm_expire(db, vmid, app.config['VM_EXPIRE_MONTHS'])
logging.info('[{}] Setting CPU and memory.'.format(name))
set_job_status(job, 'setting CPU and memory')
vm.set_cpu(cores)
vm.set_mem(memory)
logging.info('[{}] Applying cloud-init config.'.format(name))
set_job_status(job, 'applying cloud-init')
vm.set_ci_user(user)
vm.set_ci_ssh_key(ssh_key)
vm.set_ci_network()
logging.info(
'[{}] Waiting for STARRS to propogate before starting VM.'.format(
name))
set_job_status(job, 'waiting for STARRS')
job.save_meta()
time.sleep(90)
logging.info('[{}] Starting VM.'.format(name))
set_job_status(job, 'starting VM')
job.save_meta()
vm.start()
logging.info('[{}] Template successfully provisioned.'.format(name))
set_job_status(job, 'completed')
job.save_meta()
def cleanup_vnc_task():
requests.post(
'https://{}/console/cleanup'.format(app.config['SERVER_NAME']),
data={'token': app.config['VNC_CLEANUP_TOKEN']},
verify=False)