def list_policies():
"""
Get all polices.
Returns: List of policies
"""
keys = PolicyModel.query().fetch(keys_only=True)
policies_list = []
for key in keys:
policies_list.append(key.id())
return json.dumps(policies_list)
def schedule():
"""
Checks if it's time to run a schedule.
Returns:
"""
logging.debug("From Cron start /tasks/schedule")
keys = PolicyModel.query().fetch(keys_only=True)
for key in keys:
logging.debug("Creating deferred task for %s", key.id())
deferred.defer(policy_tasks.policy_checker, key.id())
return 'ok', 200
def del_policy():
"""
Delete a policy
Returns:
"""
name = request.args.get('policy')
res = PolicyModel.query(PolicyModel.Name == name).get()
if not res:
return 'not found', 404
res.key.delete()
return 'ok', 200
def policy_checker(name):
"""
Check if there is a need to take an action for a policy.
Args:
name: policy name
Returns:
"""
policy = PolicyModel.query(PolicyModel.Name == name).get()
if not policy:
logging.error('Policy %s not found!', name)
return 'not found', 404
schedule = SchedulesModel.query(
SchedulesModel.Name == policy.Schedule).get()
if not schedule:
logging.error('Schedule %s not found!', policy.Schedule)
return 'not found', 404
logging.debug("Time at Timezone %s is %s", schedule.Timezone,
tz.get_time_at_timezone(schedule.Timezone))
day, hour = tz.convert_time_to_index(
tz.get_time_at_timezone(schedule.Timezone))
logging.debug("Working on day %s hour %s", day, hour)
arr = np.asarray(schedule.Schedule['__ndarray__'], dtype=np.int).flatten()
matrix_size = schedule.Schedule['Shape'][0] * schedule.Schedule['Shape'][
1]
prev = utils.get_prev_idx(day * 24 + hour, matrix_size)
now = arr[day * 24 + hour]
prev = arr[prev]
logging.error("Previous state %s current %s", prev, now)
if now == prev:
# do nothing
logging.info("Nothing should be done for %s", name)
return 'ok', 200
else:
# stop/start
logging.info("State is changing for %s to %s", name, now)
# for each tag lets do it
for tag in policy.Tags:
for project in policy.Projects:
task = taskqueue.add(queue_name='zorya-tasks',
url="/tasks/change_state",
method='GET',
params={
'project': project,
'tagkey': tag.keys(),
'tagvalue': tag.values(),
'action': now
})
logging.debug('Task %s enqueued, ETA %s.', task.name,
task.eta)
return 'ok', 200
def del_policy():
"""
Delete a policy
Returns:
"""
name = request.args.get("policy")
with client.context():
res = PolicyModel.query(PolicyModel.Name == name).get()
if not res:
return "Policy '{}' not found.".format(name), 404
res.key.delete()
return "ok", 200
def list_policies():
"""
Get all polices.
Returns: List of policies
"""
policies_list = []
with client.context():
verbose = request.args.get("verbose") == "true"
if verbose:
policies = PolicyModel.query().fetch()
for policy in policies:
policies_list.append({
"name": policy.Name,
"displayName": policy.DisplayName
})
else:
keys = PolicyModel.query().fetch(keys_only=True)
for key in keys:
policies_list.append(key.id())
return json.dumps(policies_list)
def list_policies():
"""
Get all polices.
Returns: List of policies
"""
policies_list = []
client = ndb.Client()
with client.context():
keys = PolicyModel.query().fetch(keys_only=True)
for key in keys:
policies_list.append(key.id())
return json.dumps(policies_list)
def schedule():
"""
Checks if it's time to run a schedule.
Returns:
"""
logging.debug("From Cron start /tasks/schedule")
client = ndb.Client()
with client.context():
keys = PolicyModel.query().fetch(keys_only=True)
for key in keys:
logging.debug("Creating deferred task for %s", key.id())
policy_tasks.policy_checker(key.id())
return "ok", 200
def del_policy():
"""
Delete a policy
Returns:
"""
name = request.args.get("policy")
client = ndb.Client()
with client.context():
res = PolicyModel.query(PolicyModel.Name == name).get()
if not res:
return "not found", 404
res.key.delete()
return "ok", 200
def del_schedule():
"""
Delete a schedule.
Returns:
"""
name = request.args.get('schedule')
res = SchedulesModel.query(SchedulesModel.Name == name).get()
if not res:
return 'not found', 404
policy = PolicyModel.query(PolicyModel.Schedule == name).get()
if policy:
return 'Forbidden policy {} is using the schedule'.format(
policy.Name), 403
res.key.delete()
return 'ok', 200
def del_schedule():
"""
Delete a schedule.
Returns:
"""
name = request.args.get("schedule")
with client.context():
res = SchedulesModel.query(SchedulesModel.Name == name).get()
if not res:
return "Schedule '{}' not found.".format(name), 404
policy = PolicyModel.query(PolicyModel.Schedule == name).get()
if policy:
return "Forbidden. Schedule '{}' is in use by policy '{}'.".format(
name, policy.Name), 403
res.key.delete()
return "ok", 200
def del_schedule():
"""
Delete a schedule.
Returns:
"""
name = request.args.get("schedule")
with client.context():
res = SchedulesModel.query(SchedulesModel.Name == name).get()
if not res:
return "not found", 404
policy = PolicyModel.query(PolicyModel.Schedule == name).get()
if policy:
return "Forbidden policy {} is using the schedule".format(
policy.Name), 403
res.key.delete()
return "ok", 200
def get_policy():
"""
Get policy.
Returns: policy json
"""
name = request.args.get('policy')
res = PolicyModel.query(PolicyModel.Name == name).get()
logging.debug(res)
if not res:
return 'not found', 404
policy = {}
policy.update({'name': res.Name})
policy.update({'schedulename': res.Schedule})
policy.update({'tags': res.Tags})
policy.update({'projects': res.Projects})
return json.dumps(policy)
def get_policy():
"""
Get policy.
Returns: policy json
"""
policy = {}
name = request.args.get("policy")
with client.context():
res = PolicyModel.query(PolicyModel.Name == name).get()
logging.debug(res)
if not res:
return "not found", 404
policy.update({"name": res.Name})
policy.update({"schedulename": res.Schedule})
policy.update({"tags": res.Tags})
policy.update({"projects": res.Projects})
return json.dumps(policy)
def policy_checker(name):
"""
Check if there is a need to take an action for a policy.
Args:
name: policy name
Returns:
"""
client = ndb.Client()
with client.context():
policy = PolicyModel.query(PolicyModel.Name == name).get()
if not policy:
logging.error("Policy %s not found!", name)
return "not found", 404
schedule = SchedulesModel.query(
SchedulesModel.Name == policy.Schedule).get()
if not schedule:
logging.error("Schedule %s not found!", policy.Schedule)
return "not found", 404
logging.debug(
"Time at Timezone %s is %s",
schedule.Timezone,
tz.get_time_at_timezone(schedule.Timezone),
)
day, hour = tz.convert_time_to_index(
tz.get_time_at_timezone(schedule.Timezone))
logging.debug("Working on day %s hour %s", day, hour)
arr = np.asarray(schedule.Schedule["__ndarray__"],
dtype=np.int).flatten()
matrix_size = schedule.Schedule["Shape"][0] * schedule.Schedule[
"Shape"][1]
prev = utils.get_prev_idx(day * 24 + hour, matrix_size)
now = arr[day * 24 + hour]
prev = arr[prev]
logging.debug("Previous state %s current %s", prev, now)
if now == prev:
# do nothing
logging.info("Nothing should be done for %s", name)
return "ok", 200
else:
# stop/start
logging.info("State is changing for %s to %s", name, now)
# for each tag lets do it
task_client = tasks_v2.CloudTasksClient()
task = {
"app_engine_http_request": { # Specify the type of request.
"http_method": "POST",
"relative_uri": "/tasks/change_state",
}
}
parent = task_client.queue_path(
queue="zorya-tasks",
project=utils.get_project_id(),
location=location.get_location(),
)
for tag in policy.Tags:
for project in policy.Projects:
payload = {
"project": project,
"tagkey": next(iter(tag)),
"tagvalue": tag[next(iter(tag))],
"action": str(now),
}
task["app_engine_http_request"]["body"] = (
json.dumps(payload)).encode()
response = task_client.create_task(parent, task)
logging.debug("Task %s enqueued", response.name)
return "ok", 200