You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
433 lines
11 KiB
Python
433 lines
11 KiB
Python
|
|
from __future__ import absolute_import
|
|
from __future__ import print_function
|
|
|
|
import atexit
|
|
import os
|
|
import shlex
|
|
import shutil
|
|
import subprocess
|
|
import sys
|
|
import tempfile
|
|
|
|
try:
|
|
import urlparse
|
|
except ImportError:
|
|
import urllib.parse as urlparse
|
|
|
|
os.chdir(
|
|
os.path.join(
|
|
os.path.dirname(__file__),
|
|
'..'
|
|
)
|
|
)
|
|
|
|
|
|
#
|
|
# check_output() monkeypatch cutpasted from testlib.py
|
|
#
|
|
|
|
def subprocess__check_output(*popenargs, **kwargs):
|
|
# Missing from 2.6.
|
|
process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
|
|
output, _ = process.communicate()
|
|
retcode = process.poll()
|
|
if retcode:
|
|
cmd = kwargs.get("args")
|
|
if cmd is None:
|
|
cmd = popenargs[0]
|
|
raise subprocess.CalledProcessError(retcode, cmd)
|
|
return output
|
|
|
|
if not hasattr(subprocess, 'check_output'):
|
|
subprocess.check_output = subprocess__check_output
|
|
|
|
|
|
# ------------------
|
|
|
|
def have_apt():
|
|
proc = subprocess.Popen('apt --help >/dev/null 2>/dev/null', shell=True)
|
|
return proc.wait() == 0
|
|
|
|
|
|
def have_docker():
|
|
proc = subprocess.Popen('docker info >/dev/null 2>/dev/null', shell=True)
|
|
return proc.wait() == 0
|
|
|
|
|
|
# -----------------
|
|
|
|
# Force line buffering on stdout.
|
|
sys.stdout = os.fdopen(1, 'w', 1)
|
|
|
|
# Force stdout FD 1 to be a pipe, so tools like pip don't spam progress bars.
|
|
if 'TRAVIS_HOME' in os.environ:
|
|
proc = subprocess.Popen(
|
|
args=['stdbuf', '-oL', 'cat'],
|
|
stdin=subprocess.PIPE
|
|
)
|
|
|
|
os.dup2(proc.stdin.fileno(), 1)
|
|
os.dup2(proc.stdin.fileno(), 2)
|
|
|
|
def cleanup_travis_junk(stdout=sys.stdout, stderr=sys.stderr, proc=proc):
|
|
stdout.close()
|
|
stderr.close()
|
|
proc.terminate()
|
|
|
|
atexit.register(cleanup_travis_junk)
|
|
|
|
# -----------------
|
|
|
|
def _argv(s, *args):
|
|
"""Interpolate a command line using *args, return an argv style list.
|
|
|
|
>>> _argv('git commit -m "Use frobnicate 2.0 (fixes #%d)"', 1234)
|
|
['git', commit', '-m', 'Use frobnicate 2.0 (fixes #1234)']
|
|
"""
|
|
if args:
|
|
s %= args
|
|
return shlex.split(s)
|
|
|
|
|
|
def run(s, *args, **kwargs):
|
|
""" Run a command, with arguments, and print timing information
|
|
|
|
>>> rc = run('echo "%s %s"', 'foo', 'bar')
|
|
Running: ['/usr/bin/time', '--', 'echo', 'foo bar']
|
|
foo bar
|
|
0.00user 0.00system 0:00.00elapsed ?%CPU (0avgtext+0avgdata 1964maxresident)k
|
|
0inputs+0outputs (0major+71minor)pagefaults 0swaps
|
|
Finished running: ['/usr/bin/time', '--', 'echo', 'foo bar']
|
|
>>> rc
|
|
0
|
|
"""
|
|
argv = ['/usr/bin/time', '--'] + _argv(s, *args)
|
|
print('Running: %s' % (argv,))
|
|
try:
|
|
ret = subprocess.check_call(argv, **kwargs)
|
|
print('Finished running: %s' % (argv,))
|
|
except Exception:
|
|
print('Exception occurred while running: %s' % (argv,))
|
|
raise
|
|
|
|
return ret
|
|
|
|
|
|
def combine(batch):
|
|
"""
|
|
>>> combine(['ls -l', 'echo foo'])
|
|
'set -x; ( ls -l; ) && ( echo foo; )'
|
|
"""
|
|
return 'set -x; ' + (' && '.join(
|
|
'( %s; )' % (cmd,)
|
|
for cmd in batch
|
|
))
|
|
|
|
|
|
def run_batches(batches):
|
|
""" Run shell commands grouped into batches, showing an execution trace.
|
|
|
|
Raise AssertionError if any command has exits with a non-zero status.
|
|
|
|
>>> run_batches([['echo foo', 'true']])
|
|
+ echo foo
|
|
foo
|
|
+ true
|
|
>>> run_batches([['true', 'echo foo'], ['false']])
|
|
+ true
|
|
+ echo foo
|
|
foo
|
|
+ false
|
|
Traceback (most recent call last):
|
|
File "...", line ..., in <module>
|
|
File "...", line ..., in run_batches
|
|
AssertionError
|
|
"""
|
|
procs = [
|
|
subprocess.Popen(combine(batch), shell=True)
|
|
for batch in batches
|
|
]
|
|
assert [proc.wait() for proc in procs] == [0] * len(procs)
|
|
|
|
|
|
def get_output(s, *args, **kwargs):
|
|
"""
|
|
Print and run command line s, %-interopolated using *args. Return stdout.
|
|
|
|
>>> s = get_output('echo "%s %s"', 'foo', 'bar')
|
|
Running: ['echo', 'foo bar']
|
|
>>> s
|
|
'foo bar\n'
|
|
"""
|
|
argv = _argv(s, *args)
|
|
print('Running: %s' % (argv,))
|
|
return subprocess.check_output(argv, **kwargs)
|
|
|
|
|
|
def exists_in_path(progname):
|
|
"""
|
|
Return True if proganme exists in $PATH.
|
|
|
|
>>> exists_in_path('echo')
|
|
True
|
|
>>> exists_in_path('kwyjibo') # Only found in North American cartoons
|
|
False
|
|
"""
|
|
return any(os.path.exists(os.path.join(dirname, progname))
|
|
for dirname in os.environ['PATH'].split(os.pathsep))
|
|
|
|
|
|
class TempDir(object):
|
|
def __init__(self):
|
|
self.path = tempfile.mkdtemp(prefix='mitogen_ci_lib')
|
|
atexit.register(self.destroy)
|
|
|
|
def destroy(self, rmtree=shutil.rmtree):
|
|
rmtree(self.path)
|
|
|
|
|
|
class Fold(object):
|
|
"""
|
|
Bracket a section of stdout with travis_fold markers.
|
|
|
|
This allows the section to be collapsed or expanded in Travis CI web UI.
|
|
|
|
>>> with Fold('stage 1'):
|
|
... print('Frobnicate the frobnitz')
|
|
...
|
|
travis_fold:start:stage 1
|
|
Frobnicate the frobnitz
|
|
travis_fold:end:stage 1
|
|
"""
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
def __enter__(self):
|
|
print('travis_fold:start:%s' % (self.name))
|
|
|
|
def __exit__(self, _1, _2, _3):
|
|
print('')
|
|
print('travis_fold:end:%s' % (self.name))
|
|
|
|
|
|
os.environ.setdefault('ANSIBLE_STRATEGY',
|
|
os.environ.get('STRATEGY', 'mitogen_linear'))
|
|
ANSIBLE_VERSION = os.environ.get('VER', '2.6.2')
|
|
GIT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
|
|
DISTRO = os.environ.get('DISTRO', 'debian')
|
|
DISTROS = os.environ.get('DISTROS', 'debian centos6 centos7').split()
|
|
TARGET_COUNT = int(os.environ.get('TARGET_COUNT', '2'))
|
|
BASE_PORT = 2200
|
|
TMP = TempDir().path
|
|
|
|
|
|
# We copy this out of the way to avoid random stuff modifying perms in the Git
|
|
# tree (like git pull).
|
|
src_key_file = os.path.join(GIT_ROOT,
|
|
'tests/data/docker/mitogen__has_sudo_pubkey.key')
|
|
key_file = os.path.join(TMP,
|
|
'mitogen__has_sudo_pubkey.key')
|
|
shutil.copyfile(src_key_file, key_file)
|
|
os.chmod(key_file, int('0600', 8))
|
|
|
|
|
|
os.environ['PYTHONDONTWRITEBYTECODE'] = 'x'
|
|
os.environ['PYTHONPATH'] = '%s:%s' % (
|
|
os.environ.get('PYTHONPATH', ''),
|
|
GIT_ROOT
|
|
)
|
|
|
|
def get_docker_hostname():
|
|
"""Return the hostname where the docker daemon is running.
|
|
"""
|
|
url = os.environ.get('DOCKER_HOST')
|
|
if url in (None, 'http+docker://localunixsocket'):
|
|
return 'localhost'
|
|
|
|
parsed = urlparse.urlparse(url)
|
|
return parsed.netloc.partition(':')[0]
|
|
|
|
|
|
def image_for_distro(distro):
|
|
"""Return the container image name or path for a test distro name.
|
|
|
|
The returned value is suitable for use with `docker pull`.
|
|
|
|
>>> image_for_distro('centos5')
|
|
'public.ecr.aws/n5z0e8q9/centos5-test'
|
|
>>> image_for_distro('centos5-something_custom')
|
|
'public.ecr.aws/n5z0e8q9/centos5-test'
|
|
"""
|
|
return 'public.ecr.aws/n5z0e8q9/%s-test' % (distro.partition('-')[0],)
|
|
|
|
|
|
def make_containers(name_prefix='', port_offset=0):
|
|
"""
|
|
>>> import pprint
|
|
>>> BASE_PORT=2200; DISTROS=['debian', 'centos6']
|
|
>>> pprint.pprint(make_containers())
|
|
[{'distro': 'debian',
|
|
'hostname': 'localhost',
|
|
'name': 'target-debian-1',
|
|
'port': 2201,
|
|
'python_path': '/usr/bin/python'},
|
|
{'distro': 'centos6',
|
|
'hostname': 'localhost',
|
|
'name': 'target-centos6-2',
|
|
'port': 2202,
|
|
'python_path': '/usr/bin/python'}]
|
|
"""
|
|
docker_hostname = get_docker_hostname()
|
|
firstbit = lambda s: (s+'-').split('-')[0]
|
|
secondbit = lambda s: (s+'-').split('-')[1]
|
|
|
|
i = 1
|
|
lst = []
|
|
|
|
for distro in DISTROS:
|
|
distro, star, count = distro.partition('*')
|
|
if star:
|
|
count = int(count)
|
|
else:
|
|
count = 1
|
|
|
|
for x in range(count):
|
|
lst.append({
|
|
"distro": firstbit(distro),
|
|
"name": name_prefix + ("target-%s-%s" % (distro, i)),
|
|
"hostname": docker_hostname,
|
|
"port": BASE_PORT + i + port_offset,
|
|
"python_path": (
|
|
'/usr/bin/python3'
|
|
if secondbit(distro) == 'py3'
|
|
else '/usr/bin/python'
|
|
)
|
|
})
|
|
i += 1
|
|
|
|
return lst
|
|
|
|
|
|
# ssh removed from here because 'linear' strategy relies on processes that hang
|
|
# around after the Ansible run completes
|
|
INTERESTING_COMMS = ('python', 'sudo', 'su', 'doas')
|
|
|
|
|
|
def proc_is_docker(pid):
|
|
try:
|
|
fp = open('/proc/%s/cgroup' % (pid,), 'r')
|
|
except IOError:
|
|
return False
|
|
|
|
try:
|
|
return 'docker' in fp.read()
|
|
finally:
|
|
fp.close()
|
|
|
|
|
|
def get_interesting_procs(container_name=None):
|
|
args = ['ps', 'ax', '-oppid=', '-opid=', '-ocomm=', '-ocommand=']
|
|
if container_name is not None:
|
|
args = ['docker', 'exec', container_name] + args
|
|
|
|
out = []
|
|
for line in subprocess__check_output(args).decode().splitlines():
|
|
ppid, pid, comm, rest = line.split(None, 3)
|
|
if (
|
|
(
|
|
any(comm.startswith(s) for s in INTERESTING_COMMS) or
|
|
'mitogen:' in rest
|
|
) and
|
|
(
|
|
container_name is not None or
|
|
(not proc_is_docker(pid))
|
|
)
|
|
):
|
|
out.append((int(pid), line))
|
|
|
|
return sorted(out)
|
|
|
|
|
|
def start_containers(containers):
|
|
"""Run docker containers in the background, with sshd on specified ports.
|
|
|
|
>>> containers = start_containers([
|
|
... {'distro': 'debian', 'hostname': 'localhost',
|
|
... 'name': 'target-debian-1', 'port': 2201,
|
|
... 'python_path': '/usr/bin/python'},
|
|
... ])
|
|
"""
|
|
if os.environ.get('KEEP'):
|
|
return
|
|
|
|
run_batches([
|
|
[
|
|
"docker rm -f %(name)s || true" % container,
|
|
"docker run "
|
|
"--rm "
|
|
# "--cpuset-cpus 0,1 "
|
|
"--detach "
|
|
"--privileged "
|
|
"--cap-add=SYS_PTRACE "
|
|
"--publish 0.0.0.0:%(port)s:22/tcp "
|
|
"--hostname=%(name)s "
|
|
"--name=%(name)s "
|
|
"mitogen/%(distro)s-test "
|
|
% container
|
|
]
|
|
for container in containers
|
|
])
|
|
|
|
for container in containers:
|
|
container['interesting'] = get_interesting_procs(container['name'])
|
|
|
|
return containers
|
|
|
|
|
|
def verify_procs(hostname, old, new):
|
|
oldpids = set(pid for pid, _ in old)
|
|
if any(pid not in oldpids for pid, _ in new):
|
|
print('%r had stray processes running:' % (hostname,))
|
|
for pid, line in new:
|
|
if pid not in oldpids:
|
|
print('New process:', line)
|
|
|
|
print()
|
|
return False
|
|
|
|
return True
|
|
|
|
|
|
def check_stray_processes(old, containers=None):
|
|
ok = True
|
|
|
|
new = get_interesting_procs()
|
|
if old is not None:
|
|
ok &= verify_procs('test host machine', old, new)
|
|
|
|
for container in containers or ():
|
|
ok &= verify_procs(
|
|
container['name'],
|
|
container['interesting'],
|
|
get_interesting_procs(container['name'])
|
|
)
|
|
|
|
assert ok, 'stray processes were found'
|
|
|
|
|
|
def dump_file(path):
|
|
print()
|
|
print('--- %s ---' % (path,))
|
|
print()
|
|
with open(path, 'r') as fp:
|
|
print(fp.read().rstrip())
|
|
print('---')
|
|
print()
|
|
|
|
|
|
# SSH passes these through to the container when run interactively, causing
|
|
# stdout to get messed up with libc warnings.
|
|
os.environ.pop('LANG', None)
|
|
os.environ.pop('LC_ALL', None)
|