ansible/roles/copr/backend/files/cleanup-vms-aws-resalloc

92 lines
2.4 KiB
Python

#! /usr/bin/python3
"""
Cleanup all AWS VM instances which are using 'copr-builder' key, and are not
valid. Either they have no Name tag set (some spawning problems...) or is not
tracked by resalloc server.
"""
import json
import logging
import subprocess
import time
import dateutil.parser
logging.basicConfig(level=logging.INFO)
LOG = logging.getLogger()
def run_cmd(cmd):
""" check_output() and decode from utf8 """
return subprocess.check_output(cmd).decode("utf-8")
def _get_instances():
query = (
"Reservations[].Instances[].{"
"ID:InstanceId,"
"Name:Tags[?Key=='Name']|[0].Value,"
"KeyName:KeyName,"
"CoprInstance:Tags[?Key=='CoprInstance']|[0].Value,"
"Start:LaunchTime"
"}"
)
aws_command = [
"aws", "ec2", "describe-instances",
"--query", query,
"--filters",
"Name=key-name,Values=copr-builder",
"Name=instance-state-name,Values=running",
#"Name=tag-key,Values=FedoraCopr,Name=tag-value,Values=copr",
"--output", "json",
"--region", "us-east-1",
]
return json.loads(run_cmd(aws_command))
def _terminate_instnace(instance_id):
cmd = ["aws", "ec2", "terminate-instances", "--instance-ids", instance_id]
subprocess.call(cmd)
def _get_tracked_instances():
raw = run_cmd(["resalloc-maint", "resource-list"])
return_tracked = []
for resource in raw.strip().split("\n"):
return_tracked.append(resource.split(' ')[2])
return return_tracked
def _detect_instance():
hostname = run_cmd("hostname").strip()
return "devel" if "copr-be-dev" in hostname else "production"
def _main():
tracked = _get_tracked_instances()
copr_instance = _detect_instance()
for instance in _get_instances():
started = dateutil.parser.parse(instance["Start"]).timestamp()
if time.time() - started < 1800:
continue
if not instance["Name"]:
LOG.info("shutting down unnamed instance %s", instance["ID"])
_terminate_instnace(instance["ID"])
continue
if instance["CoprInstance"] != copr_instance:
LOG.debug("not our instance: %s (%s)", instance["Name"], instance["CoprInstance"])
continue
if instance["Name"] in tracked:
LOG.debug("tracked %s, skipped", instance["Name"])
continue
_terminate_instnace(instance["ID"])
if __name__ == "__main__":
_main()