Attempt at putting everything inside Docker

This commit is contained in:
Seth Schoen
2016-06-03 15:30:20 -07:00
parent b9ce09419f
commit 81cda2903a
7 changed files with 5 additions and 337 deletions
@@ -1,14 +0,0 @@
#!/bin/bash
# An extremely simplified version of `a2enmod` for disabling modules in the
# httpd docker image. First argument is the server_root and the second is the
# module to be disabled.
apache_confdir=$1
module=$2
sed -i "/.*"$module".*/d" "$apache_confdir/test.conf"
enabled_conf="$apache_confdir/mods-enabled/"$module".conf"
if [ -e "$enabled_conf" ]
then
rm $enabled_conf
fi
@@ -1,18 +0,0 @@
#!/bin/bash
# An extremely simplified version of `a2enmod` for enabling modules in the
# httpd docker image. First argument is the Apache ServerRoot which should be
# an absolute path. The second is the module to be enabled, such as `ssl`.
confdir=$1
module=$2
echo "LoadModule ${module}_module " \
"/usr/local/apache2/modules/mod_${module}.so" >> "${confdir}/test.conf"
availbase="/mods-available/${module}.conf"
availconf=$confdir$availbase
enabldir="$confdir/mods-enabled"
enablconf="$enabldir/${module}.conf"
if [ -e $availconf -a -d $enabldir -a ! -e $enablconf ]
then
ln -s "..$availbase" $enablconf
fi
@@ -1,63 +0,0 @@
"""Proxies ApacheConfigurator for Apache 2.4 tests"""
import zope.interface
from certbot_compatibility_test import errors
from certbot_compatibility_test import interfaces
from certbot_compatibility_test.configurators.apache import common as apache_common
# The docker image doesn't actually have the watchdog module, but unless the
# config uses mod_heartbeat or mod_heartmonitor (which aren't installed and
# therefore the config won't be loaded), I believe this isn't a problem
# http://httpd.apache.org/docs/2.4/mod/mod_watchdog.html
STATIC_MODULES = set(["core", "so", "http", "mpm_event", "watchdog"])
SHARED_MODULES = {
"log_config", "logio", "version", "unixd", "access_compat", "actions",
"alias", "allowmethods", "auth_basic", "auth_digest", "auth_form",
"authn_anon", "authn_core", "authn_dbd", "authn_dbm", "authn_file",
"authn_socache", "authnz_ldap", "authz_core", "authz_dbd", "authz_dbm",
"authz_groupfile", "authz_host", "authz_owner", "authz_user", "autoindex",
"buffer", "cache", "cache_disk", "cache_socache", "cgid", "dav", "dav_fs",
"dbd", "deflate", "dir", "dumpio", "env", "expires", "ext_filter",
"file_cache", "filter", "headers", "include", "info", "lbmethod_bybusyness",
"lbmethod_byrequests", "lbmethod_bytraffic", "lbmethod_heartbeat", "ldap",
"log_debug", "macro", "mime", "negotiation", "proxy", "proxy_ajp",
"proxy_balancer", "proxy_connect", "proxy_express", "proxy_fcgi",
"proxy_ftp", "proxy_http", "proxy_scgi", "proxy_wstunnel", "ratelimit",
"remoteip", "reqtimeout", "request", "rewrite", "sed", "session",
"session_cookie", "session_crypto", "session_dbd", "setenvif",
"slotmem_shm", "socache_dbm", "socache_memcache", "socache_shmcb",
"speling", "ssl", "status", "substitute", "unique_id", "userdir",
"vhost_alias"}
@zope.interface.implementer(interfaces.IConfiguratorProxy)
class Proxy(apache_common.Proxy):
"""Wraps the ApacheConfigurator for Apache 2.4 tests"""
def __init__(self, args):
"""Initializes the plugin with the given command line args"""
super(Proxy, self).__init__(args)
# Running init isn't ideal, but the Docker container needs to survive
# Apache restarts
self.start_docker("bradmw/apache2.4", "init")
def preprocess_config(self, server_root):
"""Prepares the configuration for use in the Docker"""
super(Proxy, self).preprocess_config(server_root)
if self.version[1] != 4:
raise errors.Error("Apache version not 2.4")
with open(self.test_conf, "a") as f:
for module in self.modules:
if module not in STATIC_MODULES:
if module in SHARED_MODULES:
f.write(
"LoadModule {0}_module /usr/local/apache2/modules/"
"mod_{0}.so\n".format(module))
else:
raise errors.Error(
"Unsupported module {0}".format(module))
@@ -29,58 +29,9 @@ class Proxy(configurators_common.Proxy):
super(Proxy, self).__init__(args)
self.le_config.apache_le_vhost_ext = "-le-ssl.conf"
self._setup_mock()
self.modules = self.server_root = self.test_conf = self.version = None
self._apache_configurator = self._all_names = self._test_names = None
def _setup_mock(self):
"""Replaces specific modules with mock.MagicMock"""
mock_subprocess = mock.MagicMock()
mock_subprocess.check_call = self.check_call
mock_subprocess.Popen = self.popen
mock.patch(
"certbot_apache.configurator.subprocess",
mock_subprocess).start()
mock.patch(
"certbot_apache.parser.subprocess",
mock_subprocess).start()
mock.patch(
"certbot.util.subprocess",
mock_subprocess).start()
mock.patch(
"certbot_apache.configurator.util.exe_exists",
_is_apache_command).start()
patch = mock.patch(
"certbot_apache.configurator.display_ops.select_vhost")
mock_display = patch.start()
mock_display.side_effect = le_errors.PluginError(
"Unable to determine vhost")
def check_call(self, command, *args, **kwargs):
"""If command is an Apache command, command is executed in the
running docker image. Otherwise, subprocess.check_call is used.
"""
if _is_apache_command(command):
command = _modify_command(command)
return super(Proxy, self).check_call(command, *args, **kwargs)
else:
return subprocess.check_call(command, *args, **kwargs)
def popen(self, command, *args, **kwargs):
"""If command is an Apache command, command is executed in the
running docker image. Otherwise, subprocess.Popen is used.
"""
if _is_apache_command(command):
command = _modify_command(command)
return super(Proxy, self).popen(command, *args, **kwargs)
else:
return subprocess.Popen(command, *args, **kwargs)
def __getattr__(self, name):
"""Wraps the Apache Configurator methods"""
method = getattr(self._apache_configurator, name, None)
@@ -91,28 +42,19 @@ class Proxy(configurators_common.Proxy):
def load_config(self):
"""Loads the next configuration for the plugin to test"""
if hasattr(self.le_config, "apache_init_script"):
try:
self.check_call([self.le_config.apache_init_script, "stop"])
except errors.Error:
raise errors.Error(
"Failed to stop previous apache config from running")
config = super(Proxy, self).load_config()
self.modules = _get_modules(config)
self.version = _get_version(config)
self._all_names, self._test_names = _get_names(config)
server_root = _get_server_root(config)
with open(os.path.join(config, "config_file")) as f:
config_file = os.path.join(server_root, f.readline().rstrip())
self.test_conf = _create_test_conf(server_root, config_file)
self.preprocess_config(server_root)
self._prepare_configurator(server_root, config_file)
try:
self.check_call("apachectl -d {0} -f {1} -k start".format(
subprocess.check_call("apachectl -d {0} -f {1} -k start".format(
server_root, config_file))
except errors.Error:
raise errors.Error(
@@ -121,34 +63,9 @@ class Proxy(configurators_common.Proxy):
return config
def preprocess_config(self, server_root):
# pylint: disable=anomalous-backslash-in-string, no-self-use
"""Prepares the configuration for use in the Docker"""
find = subprocess.Popen(
["find", server_root, "-type", "f"],
stdout=subprocess.PIPE)
subprocess.check_call([
"xargs", "sed", "-e", "s/DocumentRoot.*/DocumentRoot "
"\/usr\/local\/apache2\/htdocs/I",
"-e", "s/SSLPassPhraseDialog.*/SSLPassPhraseDialog builtin/I",
"-e", "s/TypesConfig.*/TypesConfig "
"\/usr\/local\/apache2\/conf\/mime.types/I",
"-e", "s/LoadModule/#LoadModule/I",
"-e", "s/SSLCertificateFile.*/SSLCertificateFile "
"\/usr\/local\/apache2\/conf\/empty_cert.pem/I",
"-e", "s/SSLCertificateKeyFile.*/SSLCertificateKeyFile "
"\/usr\/local\/apache2\/conf\/rsa1024_key2.pem/I",
"-i"], stdin=find.stdout)
def _prepare_configurator(self, server_root, config_file):
"""Prepares the Apache plugin for testing"""
self.le_config.apache_server_root = server_root
self.le_config.apache_ctl = "apachectl -d {0} -f {1}".format(
server_root, config_file)
self.le_config.apache_enmod = "a2enmod.sh {0}".format(server_root)
self.le_config.apache_dismod = "a2dismod.sh {0}".format(server_root)
self.le_config.apache_init_script = self.le_config.apache_ctl + " -k"
self._apache_configurator = configurator.ApacheConfigurator(
config=configuration.NamespaceConfig(self.le_config),
@@ -158,7 +75,6 @@ class Proxy(configurators_common.Proxy):
def cleanup_from_tests(self):
"""Performs any necessary cleanup from running plugin tests"""
super(Proxy, self).cleanup_from_tests()
mock.patch.stopall()
def get_all_names_answer(self):
"""Returns the set of domain names that the plugin should find"""
@@ -183,39 +99,6 @@ class Proxy(configurators_common.Proxy):
domain, cert_path, key_path, chain_path, fullchain_path)
def _is_apache_command(command):
"""Returns true if command is an Apache command"""
if isinstance(command, list):
command = command[0]
for apache_command in APACHE_COMMANDS:
if command.startswith(apache_command):
return True
return False
def _modify_command(command):
"""Modifies command so configtest works inside the docker image"""
if isinstance(command, list):
for i in xrange(len(command)):
if command[i] == "configtest":
command[i] = "-t"
else:
command = command.replace("configtest", "-t")
return command
def _create_test_conf(server_root, apache_config):
"""Creates a test config file and adds it to the Apache config"""
test_conf = os.path.join(server_root, "test.conf")
open(test_conf, "w").close()
subprocess.check_call(
["sed", "-i", "1iInclude test.conf", apache_config])
return test_conf
def _get_server_root(config):
"""Returns the server root directory in config"""
subdirs = [
@@ -251,34 +134,3 @@ def _get_names(config):
words[1].find(".") != -1):
all_names.add(words[1])
return all_names, non_ip_names
def _get_modules(config):
"""Returns the list of modules found in module_list"""
modules = []
with open(os.path.join(config, "modules")) as f:
for line in f:
# Modules list is indented, everything else is headers/footers
if line[0].isspace():
words = line.split()
# Modules redundantly end in "_module" which we can discard
modules.append(words[0][:-7])
return modules
def _get_version(config):
"""Return version of Apache Server.
Version is returned as tuple. (ie. 2.4.7 = (2, 4, 7)). Code taken from
the Apache plugin.
"""
with open(os.path.join(config, "version")) as f:
# Should be on first line of input
matches = APACHE_VERSION_REGEX.findall(f.readline())
if len(matches) != 1:
raise errors.Error("Unable to find Apache version")
return tuple([int(i) for i in matches[0].split(".")])
@@ -4,8 +4,6 @@ import os
import shutil
import tempfile
import docker
from certbot import constants
from certbot_compatibility_test import errors
from certbot_compatibility_test import util
@@ -18,20 +16,9 @@ class Proxy(object):
# pylint: disable=too-many-instance-attributes
"""A common base for compatibility test configurators"""
_NOT_ADDED_ARGS = True
@classmethod
def add_parser_arguments(cls, parser):
"""Adds command line arguments needed by the plugin"""
if Proxy._NOT_ADDED_ARGS:
group = parser.add_argument_group("docker")
group.add_argument(
"--docker-url", default="unix://var/run/docker.sock",
help="URL of the docker server")
group.add_argument(
"--no-remove", action="store_true",
help="do not delete container on program exit")
Proxy._NOT_ADDED_ARGS = False
def __init__(self, args):
"""Initializes the plugin with the given command line args"""
@@ -43,10 +30,8 @@ class Proxy(object):
for config in os.listdir(config_dir)]
self.args = args
self._docker_client = docker.Client(
base_url=self.args.docker_url, version="auto")
self.http_port, self.https_port = util.get_two_free_ports()
self._container_id = None
self.http_port = 80
self.https_port = 443
def has_more_configs(self):
"""Returns true if there are more configs to test"""
@@ -54,9 +39,6 @@ class Proxy(object):
def cleanup_from_tests(self):
"""Performs any necessary cleanup from running plugin tests"""
self._docker_client.stop(self._container_id, 0)
if not self.args.no_remove:
self._docker_client.remove_container(self._container_id)
def load_config(self):
"""Returns the next config directory to be tested"""
@@ -65,67 +47,6 @@ class Proxy(object):
os.makedirs(backup)
return self._configs.pop()
def start_docker(self, image_name, command):
"""Creates and runs a Docker container with the specified image"""
logger.warning("Pulling Docker image. This may take a minute.")
for line in self._docker_client.pull(image_name, stream=True):
logger.debug(line)
host_config = docker.utils.create_host_config(
binds={self._temp_dir: {"bind": self._temp_dir, "mode": "rw"}},
port_bindings={
80: ("127.0.0.1", self.http_port),
443: ("127.0.0.1", self.https_port)},)
container = self._docker_client.create_container(
image_name, command, ports=[80, 443], volumes=self._temp_dir,
host_config=host_config)
if container["Warnings"]:
logger.warning(container["Warnings"])
self._container_id = container["Id"]
self._docker_client.start(self._container_id)
def check_call(self, command, *args, **kwargs):
# pylint: disable=unused-argument
"""Simulates a call to check_call but executes the command in the
running docker image
"""
if self.popen(command).returncode:
raise errors.Error(
"{0} exited with a nonzero value".format(command))
def popen(self, command, *args, **kwargs):
# pylint: disable=unused-argument
"""Simulates a call to Popen but executes the command in the
running docker image
"""
class SimplePopen(object):
# pylint: disable=too-few-public-methods
"""Simplified Popen object"""
def __init__(self, returncode, output):
self.returncode = returncode
self._stdout = output
self._stderr = output
def communicate(self):
"""Returns stdout and stderr"""
return self._stdout, self._stderr
if isinstance(command, list):
command = " ".join(command)
returncode, output = self.execute_in_docker(command)
return SimplePopen(returncode, output)
def execute_in_docker(self, command):
"""Executes command inside the running docker image"""
logger.debug("Executing '%s'", command)
exec_id = self._docker_client.exec_create(self._container_id, command)
output = self._docker_client.exec_start(exec_id)
returncode = self._docker_client.exec_inspect(exec_id)["ExitCode"]
return returncode, output
def copy_certs_and_keys(self, cert_path, key_path, chain_path=None):
"""Copies certs and keys into the temporary directory"""
cert_and_key_dir = os.path.join(self._temp_dir, "certs_and_keys")
@@ -25,8 +25,8 @@ from certbot_compatibility_test.configurators.apache import apache24
DESCRIPTION = """
Tests Certbot plugins against different server configuratons. It is
assumed that Docker is already installed. If no test types is specified, all
Tests Certbot plugins against different server configurations. It is
assumed that Docker is already installed. If no test type is specified, all
tests that the plugin supports are performed.
"""
@@ -52,13 +52,3 @@ def extract_configs(configs, parent_dir):
raise errors.Error("Unknown configurations file type")
return config_dir
def get_two_free_ports():
"""Returns two free ports to use for the tests"""
with contextlib.closing(socket.socket()) as sock1:
with contextlib.closing(socket.socket()) as sock2:
sock1.bind(("", 0))
sock2.bind(("", 0))
return sock1.getsockname()[1], sock2.getsockname()[1]