207 lines
6.7 KiB
Python
207 lines
6.7 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# 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.
|
|
|
|
__all__ = [
|
|
'Runner',
|
|
]
|
|
|
|
import logging
|
|
import os
|
|
import shlex
|
|
import shutil
|
|
import subprocess
|
|
import sys
|
|
import tempfile
|
|
import textwrap
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class Runner(object):
|
|
|
|
def __init__(self, args):
|
|
self.args = args
|
|
self.project = os.path.basename(os.path.abspath('.'))
|
|
self.base_image_name = 'dox_%s_base' % self.project
|
|
self.test_image_name = 'dox_%s_test' % self.project
|
|
self.user_map = self._get_user_mapping()
|
|
self.path_map = self._get_path_mapping()
|
|
|
|
def _get_user_mapping(self):
|
|
"""Get user mapping from command line or current user."""
|
|
if self.args.user_map:
|
|
username, uid, gid = self.args.user_map.split(':')
|
|
else:
|
|
username, uid, gid = (os.getlogin(), os.getuid(), os.getgid())
|
|
return {'username': username, 'uid': int(uid), 'gid': int(gid)}
|
|
|
|
def _get_path_mapping(self):
|
|
"""Get path mapping from command line."""
|
|
if not self.args.path_map:
|
|
return None
|
|
local, remote = self.args.path_map.split(':', 1)
|
|
return {'local': local, 'remote': remote}
|
|
|
|
def is_docker_installed(self):
|
|
try:
|
|
self._docker_cmd("version")
|
|
except OSError as e:
|
|
msg = 'docker does not seem installed'
|
|
if e.errno == 2 and not self.args.debug:
|
|
logger.error(msg)
|
|
else:
|
|
logger.exception(msg)
|
|
return False
|
|
return True
|
|
|
|
def _docker_build(self, image, image_dir='.'):
|
|
logger.info('Building image %s' % image)
|
|
self._docker_cmd('build', '-t', image, image_dir)
|
|
|
|
def _docker_run(self, *args):
|
|
logger.info('Running docker')
|
|
self._docker_cmd('run', *args)
|
|
|
|
def _docker_cmd(self, *args):
|
|
base_docker = ['docker']
|
|
if self.args.debug:
|
|
base_docker.append('-D')
|
|
try:
|
|
self._run_shell_command(base_docker + list(args))
|
|
except Exception as e:
|
|
logger.error("docker failed")
|
|
logger.info(e)
|
|
raise
|
|
|
|
def _run_shell_command(self, cmd):
|
|
|
|
logger.debug('shell: ' + ' '.join(cmd))
|
|
if self.args.noop:
|
|
return
|
|
|
|
process = subprocess.Popen(
|
|
cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
|
|
|
|
while True:
|
|
output = process.stdout.read(1)
|
|
|
|
if output == '' and process.poll() is not None:
|
|
break
|
|
|
|
if output != '' and not self.args.quiet:
|
|
sys.stdout.write(output)
|
|
sys.stdout.flush()
|
|
|
|
if process.returncode:
|
|
raise Exception(
|
|
"%s returned %d" % (cmd, process.returncode))
|
|
|
|
def _indent(self, text):
|
|
wrapper = textwrap.TextWrapper(
|
|
initial_indent=' ', subsequent_indent=' ')
|
|
return '\n'.join([wrapper.fill(line) for line in text.split('\n')])
|
|
|
|
def _get_image_list(self):
|
|
|
|
process = subprocess.Popen(
|
|
shlex.split('docker images'),
|
|
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
|
|
|
|
stdout, _ = process.communicate()
|
|
out_text = stdout.strip().decode('utf-8') if stdout else ""
|
|
return dict([f.split()[:2] for f in out_text.split('\n')])
|
|
|
|
def have_test_image(self):
|
|
if self.args.rebuild or self.args.rebuild_all:
|
|
return False
|
|
if self.test_image_name in self._get_image_list():
|
|
return True
|
|
return False
|
|
|
|
def build_test_image(self, image, commands):
|
|
|
|
logger.debug(
|
|
"Want test image %(image)s with %(prep_commands)s" % dict(
|
|
image=self.test_image_name,
|
|
prep_commands=commands.prep_commands()))
|
|
if self.have_test_image():
|
|
return
|
|
|
|
dockerfile = []
|
|
dockerfile.append("FROM %s" % image)
|
|
try:
|
|
tempd = tempfile.mkdtemp()
|
|
dockerfile.append(
|
|
"RUN useradd -M -U -d /src -u %(uid)s %(user)s" % dict(
|
|
uid=self.user_map['uid'],
|
|
gid=self.user_map['gid'],
|
|
user=self.user_map['username']))
|
|
for add_file in commands.get_add_files():
|
|
shutil.copy(add_file, os.path.join(tempd, add_file))
|
|
dockerfile.append("ADD %s /dox/" % add_file)
|
|
dockerfile.append("WORKDIR /dox")
|
|
for command in commands.prep_commands():
|
|
dockerfile.append("RUN %s\n" % command)
|
|
dockerfile = '\n'.join(dockerfile)
|
|
with open(os.path.join(tempd, 'Dockerfile'), 'w') as f:
|
|
f.write(dockerfile)
|
|
logger.debug("Dockerfile:\n" + self._indent(dockerfile))
|
|
self._docker_build(self.test_image_name, tempd)
|
|
finally:
|
|
shutil.rmtree(tempd)
|
|
|
|
def run_commands(self, command):
|
|
path = os.path.abspath('.')
|
|
if self.path_map:
|
|
path = path.replace(self.path_map['local'],
|
|
self.path_map['remote'])
|
|
docker_args = ['--privileged=true',
|
|
'--user=%s' % self.user_map['username'],
|
|
'-v', "%s:/src" % path,
|
|
'-w', '/src']
|
|
if not self.args.keep_image:
|
|
docker_args.append('--rm')
|
|
docker_args.append(self.test_image_name)
|
|
for c in command:
|
|
docker_args.append(c)
|
|
self._docker_run(*docker_args)
|
|
|
|
def have_base_image(self):
|
|
if self.args.rebuild_all:
|
|
return False
|
|
if self.base_image_name in self._get_image_list():
|
|
return True
|
|
return False
|
|
|
|
def build_base_image(self):
|
|
|
|
logger.debug("Want base image")
|
|
if self.have_base_image():
|
|
return
|
|
self._docker_build(self.base_image_name)
|
|
|
|
def run(self, image, command):
|
|
logger.debug(
|
|
"Going to run %(command)s in %(image)s" % dict(
|
|
command=command.test_command(), image=image))
|
|
if self.args.rebuild:
|
|
logger.debug("Need to rebuild")
|
|
|
|
if image is None:
|
|
self.build_base_image()
|
|
self.build_test_image(image, command)
|
|
|
|
self.run_commands(shlex.split(command.test_command()))
|