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# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you 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.
import os
import re
import time
from pathlib import Path
from typing import Optional, Tuple
from elasticsearch import (
ConnectionError,
Elasticsearch,
)
SOURCE_DIR = Path(__file__).absolute().parent.parent
CA_CERTS = str(SOURCE_DIR / ".buildkite/certs/ca.crt")
def es_url() -> str:
"""Grabs an Elasticsearch URL which can be designated via
an environment variable otherwise falls back on localhost.
"""
urls_to_try = []
# Try user-supplied URLs before generic localhost ones.
if os.environ.get("ELASTICSEARCH_URL", ""):
urls_to_try.append(os.environ["ELASTICSEARCH_URL"])
if os.environ.get("elasticsearch_url", ""):
urls_to_try.append(os.environ["elasticsearch_url"])
urls_to_try.extend(
[
"https://localhost:9200",
"http://localhost:9200",
"https://elastic:changeme@localhost:9200",
"http://elastic:changeme@localhost:9200",
]
)
error = None
for url in urls_to_try:
if url.startswith("https://"):
client = Elasticsearch(url, ca_certs=CA_CERTS, verify_certs=False)
else:
client = Elasticsearch(url)
try:
# Check that we get any sort of connection first.
client.info()
# After we get a connection let's wait for the cluster
# to be in 'yellow' state, otherwise we could start
# tests too early and get failures.
for _ in range(100):
try:
client.cluster.health(wait_for_status="yellow")
break
except ConnectionError:
time.sleep(0.1)
except ConnectionError as e:
if error is None:
error = str(e)
else:
successful_url = url
break
else:
raise RuntimeError(
"Could not connect to Elasticsearch (tried %s): %s"
% (", ".join(urls_to_try), error)
)
return successful_url
def es_version(client) -> Tuple[int, ...]:
"""Determines the version number and parses the number as a tuple of ints"""
resp = client.info()
return parse_version(resp["version"]["number"])
def parse_version(version: Optional[str]) -> Optional[Tuple[int, ...]]:
"""Parses a version number string into it's major, minor, patch as a tuple"""
if not version:
return None
version_number = tuple(
int(x)
for x in re.search(r"^([0-9]+(?:\.[0-9]+)*)", version).group(1).split(".")
)
return version_number
def wipe_cluster(client):
"""Wipes a cluster clean between test cases"""
close_after_wipe = False
try:
# If client is async we need to replace the client
# with a synchronous one.
from elasticsearch import AsyncElasticsearch
if isinstance(client, AsyncElasticsearch):
node_config = client.transport.node_pool.get().config
client = Elasticsearch([node_config], verify_certs=False)
close_after_wipe = True
except ImportError:
pass
wipe_snapshots(client)
wipe_data_streams(client)
wipe_indices(client)
client.indices.delete_template(name="*")
client.indices.delete_index_template(name="*")
wipe_cluster_settings(client)
wait_for_cluster_state_updates_to_finish(client)
if close_after_wipe:
client.close()
def wipe_cluster_settings(client):
settings = client.cluster.get_settings()
new_settings = {}
for name, value in settings.items():
if value:
new_settings.setdefault(name, {})
for key in value.keys():
new_settings[name][key + ".*"] = None
if new_settings:
client.cluster.put_settings(body=new_settings)
def wipe_snapshots(client):
"""Deletes all the snapshots and repositories from the cluster"""
in_progress_snapshots = []
repos = client.snapshot.get_repository(name="_all")
for repo_name, repo in repos.items():
if repo_name in {"found-snapshots"}:
continue
if repo["type"] == "fs":
snapshots = client.snapshot.get(
repository=repo_name, snapshot="_all", ignore_unavailable=True
)
for snapshot in snapshots["snapshots"]:
if snapshot["state"] == "IN_PROGRESS":
in_progress_snapshots.append(snapshot)
else:
client.options(ignore_status=404).snapshot.delete(
repository=repo_name,
snapshot=snapshot["snapshot"],
)
client.options(ignore_status=404).snapshot.delete_repository(name=repo_name)
assert in_progress_snapshots == []
def wipe_data_streams(client):
try:
client.indices.delete_data_stream(name="*", expand_wildcards="all")
except Exception:
client.indices.delete_data_stream(name="*")
def wipe_indices(client):
indices = client.cat.indices().strip().splitlines()
if len(indices) > 0:
index_names = [i.split(" ")[2] for i in indices]
client.options(ignore_status=404).indices.delete(
index=",".join(index_names),
expand_wildcards="all",
)
def wait_for_cluster_state_updates_to_finish(client, timeout=30):
end_time = time.time() + timeout
while time.time() < end_time:
if not client.cluster.pending_tasks().get("tasks", ()):
break
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