mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 19:45:11 +00:00
403 lines
13 KiB
Python
403 lines
13 KiB
Python
#!/usr/bin/env python3
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"""
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Lambda function to:
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- calculate number of running runners
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- cleaning dead runners from GitHub
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- terminating stale lost runners in EC2
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"""
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import argparse
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import sys
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import json
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import time
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from collections import namedtuple
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from datetime import datetime
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from typing import Dict, List, Tuple
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import jwt
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import requests # type: ignore
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import boto3 # type: ignore
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from botocore.exceptions import ClientError # type: ignore
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UNIVERSAL_LABEL = "universal"
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RUNNER_TYPE_LABELS = [
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"builder",
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"func-tester",
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"func-tester-aarch64",
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"fuzzer-unit-tester",
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"stress-tester",
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"style-checker",
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"style-checker-aarch64",
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]
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RunnerDescription = namedtuple(
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"RunnerDescription", ["id", "name", "tags", "offline", "busy"]
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)
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RunnerDescriptions = List[RunnerDescription]
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def get_dead_runners_in_ec2(runners: RunnerDescriptions) -> RunnerDescriptions:
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ids = {
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runner.name: runner
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for runner in runners
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# Only `i-deadbead123` are valid names for an instance ID
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if runner.offline and not runner.busy and runner.name.startswith("i-")
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}
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if not ids:
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return []
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result_to_delete = [
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runner
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for runner in runners
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if not ids.get(runner.name) and runner.offline and not runner.busy
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]
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client = boto3.client("ec2")
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i = 0
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inc = 100
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print("Checking ids", ids.keys())
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instances_statuses = []
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while i < len(ids.keys()):
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try:
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instances_statuses.append(
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client.describe_instance_status(
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InstanceIds=list(ids.keys())[i : i + inc]
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)
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)
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# It applied only if all ids exist in EC2
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i += inc
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except ClientError as e:
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# The list of non-existent instances is in the message:
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# The instance IDs 'i-069b1c256c06cf4e3, i-0f26430432b044035,
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# i-0faa2ff44edbc147e, i-0eccf2514585045ec, i-0ee4ee53e0daa7d4a,
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# i-07928f15acd473bad, i-0eaddda81298f9a85' do not exist
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message = e.response["Error"]["Message"]
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if message.startswith("The instance IDs '") and message.endswith(
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"' do not exist"
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):
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non_existent = message[18:-14].split(", ")
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for n in non_existent:
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result_to_delete.append(ids.pop(n))
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else:
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raise
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found_instances = set([])
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print("Response", instances_statuses)
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for instances_status in instances_statuses:
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for instance_status in instances_status["InstanceStatuses"]:
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if instance_status["InstanceState"]["Name"] in ("pending", "running"):
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found_instances.add(instance_status["InstanceId"])
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print("Found instances", found_instances)
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for runner in result_to_delete:
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print("Instance", runner.name, "is not alive, going to remove it")
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for instance_id, runner in ids.items():
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if instance_id not in found_instances:
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print("Instance", instance_id, "is not found in EC2, going to remove it")
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result_to_delete.append(runner)
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return result_to_delete
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def get_lost_ec2_instances(runners: RunnerDescriptions) -> List[dict]:
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client = boto3.client("ec2")
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reservations = client.describe_instances(
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Filters=[{"Name": "tag-key", "Values": ["github:runner-type"]}]
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)["Reservations"]
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lost_instances = []
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# Here we refresh the runners to get the most recent state
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now = datetime.now().timestamp()
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for reservation in reservations:
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for instance in reservation["Instances"]:
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# Do not consider instances started 20 minutes ago as problematic
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if now - instance["LaunchTime"].timestamp() < 1200:
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continue
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runner_type = [
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tag["Value"]
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for tag in instance["Tags"]
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if tag["Key"] == "github:runner-type"
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][0]
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# If there's no necessary labels in runner type it's fine
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if not (
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UNIVERSAL_LABEL in runner_type or runner_type in RUNNER_TYPE_LABELS
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):
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continue
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if instance["State"]["Name"] == "running" and (
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not [
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runner
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for runner in runners
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if runner.name == instance["InstanceId"]
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]
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):
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lost_instances.append(instance)
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return lost_instances
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def get_key_and_app_from_aws() -> Tuple[str, int]:
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secret_name = "clickhouse_github_secret_key"
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session = boto3.session.Session()
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client = session.client(
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service_name="secretsmanager",
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)
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get_secret_value_response = client.get_secret_value(SecretId=secret_name)
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data = json.loads(get_secret_value_response["SecretString"])
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return data["clickhouse-app-key"], int(data["clickhouse-app-id"])
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def handler(event, context):
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private_key, app_id = get_key_and_app_from_aws()
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main(private_key, app_id, True, True)
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def get_installation_id(jwt_token: str) -> int:
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headers = {
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"Authorization": f"Bearer {jwt_token}",
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"Accept": "application/vnd.github.v3+json",
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}
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response = requests.get("https://api.github.com/app/installations", headers=headers)
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response.raise_for_status()
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data = response.json()
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for installation in data:
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if installation["account"]["login"] == "ClickHouse":
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installation_id = installation["id"]
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break
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return installation_id # type: ignore
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def get_access_token(jwt_token: str, installation_id: int) -> str:
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headers = {
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"Authorization": f"Bearer {jwt_token}",
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"Accept": "application/vnd.github.v3+json",
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}
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response = requests.post(
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f"https://api.github.com/app/installations/{installation_id}/access_tokens",
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headers=headers,
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)
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response.raise_for_status()
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data = response.json()
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return data["token"] # type: ignore
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def list_runners(access_token: str) -> RunnerDescriptions:
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headers = {
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"Authorization": f"token {access_token}",
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"Accept": "application/vnd.github.v3+json",
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}
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per_page = 100
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response = requests.get(
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f"https://api.github.com/orgs/ClickHouse/actions/runners?per_page={per_page}",
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headers=headers,
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)
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response.raise_for_status()
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data = response.json()
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total_runners = data["total_count"]
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print("Expected total runners", total_runners)
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runners = data["runners"]
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# round to 0 for 0, 1 for 1..100, but to 2 for 101..200
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total_pages = (total_runners - 1) // per_page + 1
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print("Total pages", total_pages)
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for i in range(2, total_pages + 1):
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response = requests.get(
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"https://api.github.com/orgs/ClickHouse/actions/runners"
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f"?page={i}&per_page={per_page}",
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headers=headers,
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)
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response.raise_for_status()
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data = response.json()
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runners += data["runners"]
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print("Total runners", len(runners))
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result = []
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for runner in runners:
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tags = [tag["name"] for tag in runner["labels"]]
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desc = RunnerDescription(
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id=runner["id"],
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name=runner["name"],
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tags=tags,
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offline=runner["status"] == "offline",
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busy=runner["busy"],
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)
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result.append(desc)
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return result
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def group_runners_by_tag(
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listed_runners: RunnerDescriptions,
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) -> Dict[str, RunnerDescriptions]:
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result = {} # type: Dict[str, RunnerDescriptions]
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def add_to_result(tag, runner):
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if tag not in result:
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result[tag] = []
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result[tag].append(runner)
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for runner in listed_runners:
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if UNIVERSAL_LABEL in runner.tags:
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# Do not proceed other labels if UNIVERSAL_LABEL is included
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add_to_result(UNIVERSAL_LABEL, runner)
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continue
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for tag in runner.tags:
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if tag in RUNNER_TYPE_LABELS:
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add_to_result(tag, runner)
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break
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else:
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add_to_result("unlabeled", runner)
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return result
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def push_metrics_to_cloudwatch(
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listed_runners: RunnerDescriptions, namespace: str
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) -> None:
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client = boto3.client("cloudwatch")
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metrics_data = []
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busy_runners = sum(
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1 for runner in listed_runners if runner.busy and not runner.offline
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)
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metrics_data.append(
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{
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"MetricName": "BusyRunners",
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"Value": busy_runners,
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"Unit": "Count",
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}
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)
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total_active_runners = sum(1 for runner in listed_runners if not runner.offline)
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metrics_data.append(
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{
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"MetricName": "ActiveRunners",
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"Value": total_active_runners,
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"Unit": "Count",
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}
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)
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total_runners = len(listed_runners)
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metrics_data.append(
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{
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"MetricName": "TotalRunners",
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"Value": total_runners,
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"Unit": "Count",
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}
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)
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if total_active_runners == 0:
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busy_ratio = 100.0
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else:
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busy_ratio = busy_runners / total_active_runners * 100
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metrics_data.append(
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{
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"MetricName": "BusyRunnersRatio",
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"Value": busy_ratio,
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"Unit": "Percent",
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}
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)
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client.put_metric_data(Namespace=namespace, MetricData=metrics_data)
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def delete_runner(access_token: str, runner: RunnerDescription) -> bool:
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headers = {
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"Authorization": f"token {access_token}",
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"Accept": "application/vnd.github.v3+json",
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}
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response = requests.delete(
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f"https://api.github.com/orgs/ClickHouse/actions/runners/{runner.id}",
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headers=headers,
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)
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response.raise_for_status()
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print(f"Response code deleting {runner.name} is {response.status_code}")
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return bool(response.status_code == 204)
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def main(
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github_secret_key: str,
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github_app_id: int,
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push_to_cloudwatch: bool,
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delete_offline_runners: bool,
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) -> None:
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payload = {
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"iat": int(time.time()) - 60,
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"exp": int(time.time()) + (10 * 60),
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"iss": github_app_id,
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}
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encoded_jwt = jwt.encode(payload, github_secret_key, algorithm="RS256")
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installation_id = get_installation_id(encoded_jwt)
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access_token = get_access_token(encoded_jwt, installation_id)
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gh_runners = list_runners(access_token)
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grouped_runners = group_runners_by_tag(gh_runners)
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for group, group_runners in grouped_runners.items():
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if push_to_cloudwatch:
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print(f"Pushing metrics for group '{group}'")
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push_metrics_to_cloudwatch(group_runners, "RunnersMetrics/" + group)
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else:
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print(group, f"({len(group_runners)})")
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for runner in group_runners:
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print("\t", runner)
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if delete_offline_runners:
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print("Going to delete offline runners")
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dead_runners = get_dead_runners_in_ec2(gh_runners)
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for runner in dead_runners:
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print("Deleting runner", runner)
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delete_runner(access_token, runner)
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lost_instances = get_lost_ec2_instances(gh_runners)
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if lost_instances:
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print("Going to terminate lost runners")
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ids = [i["InstanceId"] for i in lost_instances]
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print("Terminating runners:", ids)
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boto3.client("ec2").terminate_instances(InstanceIds=ids)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="Get list of runners and their states")
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parser.add_argument(
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"-p", "--private-key-path", help="Path to file with private key"
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)
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parser.add_argument("-k", "--private-key", help="Private key")
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parser.add_argument(
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"-a", "--app-id", type=int, help="GitHub application ID", required=True
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)
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parser.add_argument(
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"--push-to-cloudwatch",
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action="store_true",
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help="Push metrics for active and busy runners to cloudwatch",
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)
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parser.add_argument(
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"--delete-offline", action="store_true", help="Remove offline runners"
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)
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args = parser.parse_args()
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if not args.private_key_path and not args.private_key:
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print(
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"Either --private-key-path or --private-key must be specified",
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file=sys.stderr,
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)
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if args.private_key_path and args.private_key:
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print(
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"Either --private-key-path or --private-key must be specified",
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file=sys.stderr,
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)
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if args.private_key:
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private_key = args.private_key
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elif args.private_key_path:
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with open(args.private_key_path, "r") as key_file:
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private_key = key_file.read()
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else:
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print("Attempt to get key and id from AWS secret manager")
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private_key, args.app_id = get_key_and_app_from_aws()
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main(private_key, args.app_id, args.push_to_cloudwatch, args.delete_offline)
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