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# Copyright 2020 Red Hat, Inc.
#
# Licensed 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.
#
"""Integration Test Utils"""
import logging
import os
import shutil
import subprocess
import threading
from contextlib import suppress
from typing import Optional
import time
from podman.tests import errors
logger = logging.getLogger("podman.service")
class PodmanLauncher:
"""Podman service launcher"""
def __init__(
self,
socket_uri: str,
podman_path: Optional[str] = None,
timeout: int = 0,
privileged: bool = False,
log_level: str = "WARNING",
) -> None:
"""create a launcher and build podman command"""
podman_exe: str = podman_path
if not podman_exe:
podman_exe = shutil.which('podman')
if podman_exe is None:
raise errors.PodmanNotInstalled()
self.socket_file: str = socket_uri.replace('unix://', '')
self.log_level = log_level
self.proc = None
self.reference_id = hash(time.monotonic())
self.cmd: list[str] = []
if privileged:
self.cmd.append('sudo')
self.cmd.append(podman_exe)
logger.setLevel(logging.getLevelName(log_level))
# Map from python to go logging levels, FYI trace level breaks cirrus logging
self.cmd.append(f"--log-level={log_level.lower()}")
if os.environ.get("container") == "oci":
self.cmd.append("--storage-driver=vfs")
self.cmd.extend(
[
"system",
"service",
f"--time={timeout}",
socket_uri,
]
)
process = subprocess.run(
[podman_exe, "--version"], check=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
)
self.version = str(process.stdout.decode("utf-8")).strip().split()[2]
def start(self, check_socket=True) -> None:
"""start podman service"""
logger.info(
"Launching(%s) %s refid=%s",
self.version,
' '.join(self.cmd),
self.reference_id,
)
def consume_lines(pipe, consume_fn):
with pipe:
for line in iter(pipe.readline, b""):
consume_fn(line.decode("utf-8"))
def consume(line: str):
logger.debug(line.strip("\n") + f" refid={self.reference_id}")
self.proc = subprocess.Popen(self.cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) # pylint: disable=consider-using-with
threading.Thread(target=consume_lines, args=[self.proc.stdout, consume]).start()
if not check_socket:
return
# wait for socket to be created
timeout = time.monotonic() + 30
while not os.path.exists(self.socket_file):
if time.monotonic() > timeout:
raise subprocess.TimeoutExpired("podman service ", timeout)
time.sleep(0.2)
def stop(self) -> None:
"""stop podman service"""
if not self.proc:
return
self.proc.terminate()
try:
return_code = self.proc.wait(timeout=15)
except subprocess.TimeoutExpired:
self.proc.kill()
return_code = self.proc.wait()
self.proc = None
with suppress(FileNotFoundError):
os.remove(self.socket_file)
logger.info("Command return Code: %d refid=%s", return_code, self.reference_id)
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