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Source code for galaxy.tools.deps.containers
import logging
import os
import string
from abc import (
ABCMeta,
abstractmethod
)
import six
from galaxy.util import asbool
from galaxy.util import in_directory
from galaxy.util import plugin_config
from .container_resolvers.explicit import ExplicitContainerResolver
from .container_resolvers.mulled import (
BuildMulledDockerContainerResolver,
BuildMulledSingularityContainerResolver,
CachedMulledDockerContainerResolver,
CachedMulledSingularityContainerResolver,
MulledDockerContainerResolver,
)
from .requirements import ContainerDescription
from .requirements import DEFAULT_CONTAINER_RESOLVE_DEPENDENCIES, DEFAULT_CONTAINER_SHELL
from ..deps import docker_util
from ..deps import singularity_util
log = logging.getLogger(__name__)
DOCKER_CONTAINER_TYPE = "docker"
SINGULARITY_CONTAINER_TYPE = "singularity"
DEFAULT_CONTAINER_TYPE = DOCKER_CONTAINER_TYPE
ALL_CONTAINER_TYPES = [DOCKER_CONTAINER_TYPE, SINGULARITY_CONTAINER_TYPE]
LOAD_CACHED_IMAGE_COMMAND_TEMPLATE = '''
python << EOF
from __future__ import print_function
import json
import re
import subprocess
import tarfile
t = tarfile.TarFile("${cached_image_file}")
meta_str = t.extractfile('repositories').read()
meta = json.loads(meta_str)
tag, tag_value = meta.items()[0]
rev, rev_value = tag_value.items()[0]
cmd = "${images_cmd}"
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
stdo, stde = proc.communicate()
found = False
for line in stdo.split("\\n"):
tmp = re.split(r'\s+', line)
if tmp[0] == tag and tmp[1] == rev and tmp[2] == rev_value:
found = True
if not found:
print("Loading image")
cmd = "cat ${cached_image_file} | ${load_cmd}"
subprocess.check_call(cmd, shell=True)
EOF
'''
[docs]class ContainerFinder(object):
[docs] def __init__(self, app_info):
self.app_info = app_info
self.container_registry = ContainerRegistry(app_info)
def __enabled_container_types(self, destination_info):
return [t for t in ALL_CONTAINER_TYPES if self.__container_type_enabled(t, destination_info)]
[docs] def find_best_container_description(self, enabled_container_types, tool_info):
"""Regardless of destination properties - find best container for tool.
Given container types and container.ToolInfo description of the tool."""
container_description = self.container_registry.find_best_container_description(enabled_container_types, tool_info)
return container_description
[docs] def find_container(self, tool_info, destination_info, job_info):
enabled_container_types = self.__enabled_container_types(destination_info)
# Short-cut everything else and just skip checks if no container type is enabled.
if not enabled_container_types:
return NULL_CONTAINER
def __destination_container(container_description=None, container_id=None, container_type=None):
if container_description:
container_id = container_description.identifier
container_type = container_description.type
container = self.__destination_container(
container_id,
container_type,
tool_info,
destination_info,
job_info,
container_description,
)
return container
if "container_override" in destination_info:
container_description = ContainerDescription.from_dict(destination_info["container_override"][0])
if container_description:
container = __destination_container(container_description)
if container:
return container
# If destination forcing Galaxy to use a particular container do it,
# this is likely kind of a corner case. For instance if deployers
# do not trust the containers annotated in tools.
for container_type in CONTAINER_CLASSES.keys():
container_id = self.__overridden_container_id(container_type, destination_info)
if container_id:
container = __destination_container(container_type=container_type, container_id=container_id)
if container:
return container
# Otherwise lets see if we can find container for the tool.
container_description = self.find_best_container_description(enabled_container_types, tool_info)
container = __destination_container(container_description)
if container:
return container
# If we still don't have a container, check to see if any container
# types define a default container id and use that.
if "container" in destination_info:
container_description = ContainerDescription.from_dict(destination_info["container"][0])
if container_description:
container = __destination_container(container_description)
if container:
return container
for container_type in CONTAINER_CLASSES.keys():
container_id = self.__default_container_id(container_type, destination_info)
if container_id:
container = __destination_container(container_type=container_type, container_id=container_id)
if container:
return container
return NULL_CONTAINER
def __overridden_container_id(self, container_type, destination_info):
if not self.__container_type_enabled(container_type, destination_info):
return None
if "%s_container_id_override" % container_type in destination_info:
return destination_info.get("%s_container_id_override" % container_type)
if "%s_image_override" % container_type in destination_info:
return self.__build_container_id_from_parts(container_type, destination_info, mode="override")
def __build_container_id_from_parts(self, container_type, destination_info, mode):
repo = ""
owner = ""
repo_key = "%s_repo_%s" % (container_type, mode)
owner_key = "%s_owner_%s" % (container_type, mode)
if repo_key in destination_info:
repo = destination_info[repo_key] + "/"
if owner_key in destination_info:
owner = destination_info[owner_key] + "/"
cont_id = repo + owner + destination_info["%s_image_%s" % (container_type, mode)]
tag_key = "%s_tag_%s" % (container_type, mode)
if tag_key in destination_info:
cont_id += ":" + destination_info[tag_key]
return cont_id
def __default_container_id(self, container_type, destination_info):
if not self.__container_type_enabled(container_type, destination_info):
return None
key = "%s_default_container_id" % container_type
# Also allow docker_image...
if key not in destination_info:
key = "%s_image" % container_type
if key in destination_info:
return destination_info.get(key)
elif "%s_image_default" in destination_info:
return self.__build_container_id_from_parts(container_type, destination_info, mode="default")
return None
def __destination_container(self, container_id, container_type, tool_info, destination_info, job_info, container_description=None):
# TODO: ensure destination_info is dict-like
if not self.__container_type_enabled(container_type, destination_info):
return NULL_CONTAINER
# TODO: Right now this assumes all containers available when a
# container type is - there should be more thought put into this.
# Checking which are availalbe - settings policies for what can be
# auto-fetched, etc....
return CONTAINER_CLASSES[container_type](container_id, self.app_info, tool_info, destination_info, job_info, container_description)
def __container_type_enabled(self, container_type, destination_info):
return asbool(destination_info.get("%s_enabled" % container_type, False))
[docs]class ContainerRegistry(object):
"""Loop through enabled ContainerResolver plugins and find first match."""
[docs] def __init__(self, app_info):
self.resolver_classes = self.__resolvers_dict()
self.enable_beta_mulled_containers = app_info.enable_beta_mulled_containers
self.app_info = app_info
self.container_resolvers = self.__build_container_resolvers(app_info)
def __build_container_resolvers(self, app_info):
conf_file = getattr(app_info, 'containers_resolvers_config_file', None)
if not conf_file:
return self.__default_containers_resolvers()
if not os.path.exists(conf_file):
log.debug("Unable to find config file '%s'", conf_file)
return self.__default_containers_resolvers()
plugin_source = plugin_config.plugin_source_from_path(conf_file)
return self.__parse_resolver_conf_xml(plugin_source)
def __parse_resolver_conf_xml(self, plugin_source):
extra_kwds = {}
return plugin_config.load_plugins(self.resolver_classes, plugin_source, extra_kwds)
def __default_containers_resolvers(self):
default_resolvers = [
ExplicitContainerResolver(self.app_info),
]
if self.enable_beta_mulled_containers:
default_resolvers.extend([
CachedMulledDockerContainerResolver(self.app_info, namespace="biocontainers"),
MulledDockerContainerResolver(self.app_info, namespace="biocontainers"),
BuildMulledDockerContainerResolver(self.app_info),
CachedMulledSingularityContainerResolver(self.app_info),
BuildMulledSingularityContainerResolver(self.app_info),
])
return default_resolvers
def __resolvers_dict(self):
import galaxy.tools.deps.container_resolvers
return plugin_config.plugins_dict(galaxy.tools.deps.container_resolvers, 'resolver_type')
[docs] def find_best_container_description(self, enabled_container_types, tool_info):
"""Yield best container description of supplied types matching tool info."""
for container_resolver in self.container_resolvers:
if hasattr(container_resolver, "container_type"):
if container_resolver.container_type not in enabled_container_types:
continue
container_description = container_resolver.resolve(enabled_container_types, tool_info)
log.info("Checking with container resolver [%s] found description [%s]" % (container_resolver, container_description))
if container_description:
assert container_description.type in enabled_container_types
return container_description
return None
[docs]class AppInfo(object):
[docs] def __init__(
self,
galaxy_root_dir=None,
default_file_path=None,
outputs_to_working_directory=False,
container_image_cache_path=None,
library_import_dir=None,
enable_beta_mulled_containers=False,
containers_resolvers_config_file=None,
involucro_path=None,
involucro_auto_init=True,
):
self.galaxy_root_dir = galaxy_root_dir
self.default_file_path = default_file_path
# TODO: Vary default value for docker_volumes based on this...
self.outputs_to_working_directory = outputs_to_working_directory
self.container_image_cache_path = container_image_cache_path
self.library_import_dir = library_import_dir
self.enable_beta_mulled_containers = enable_beta_mulled_containers
self.containers_resolvers_config_file = containers_resolvers_config_file
self.involucro_path = involucro_path
self.involucro_auto_init = involucro_auto_init
[docs]class ToolInfo(object):
# TODO: Introduce tool XML syntax to annotate the optional environment
# variables they can consume (e.g. JVM options, license keys, etc..)
# and add these to env_path_through
[docs] def __init__(self, container_descriptions=[], requirements=[], requires_galaxy_python_environment=False, env_pass_through=["GALAXY_SLOTS"]):
self.container_descriptions = container_descriptions
self.requirements = requirements
self.requires_galaxy_python_environment = requires_galaxy_python_environment
self.env_pass_through = env_pass_through
[docs]class JobInfo(object):
[docs] def __init__(
self, working_directory, tool_directory, job_directory, tmp_directory, job_directory_type
):
self.working_directory = working_directory
self.job_directory = job_directory
# Tool files may be remote staged - so this is unintuitively a property
# of the job not of the tool.
self.tool_directory = tool_directory
self.tmp_directory = tmp_directory
self.job_directory_type = job_directory_type # "galaxy" or "pulsar"
[docs]@six.add_metaclass(ABCMeta)
class Container(object):
[docs] def __init__(self, container_id, app_info, tool_info, destination_info, job_info, container_description):
self.container_id = container_id
self.app_info = app_info
self.tool_info = tool_info
self.destination_info = destination_info
self.job_info = job_info
self.container_description = container_description
@property
def resolve_dependencies(self):
return DEFAULT_CONTAINER_RESOLVE_DEPENDENCIES if not self.container_description else self.container_description.resolve_dependencies
@property
def shell(self):
return DEFAULT_CONTAINER_SHELL if not self.container_description else self.container_description.shell
[docs] @abstractmethod
def containerize_command(self, command):
"""
Use destination supplied container configuration parameters,
container_id, and command to build a new command that runs
input command in container.
"""
[docs]def preprocess_volumes(volumes_raw_str, container_type):
"""Process Galaxy volume specification string to either Docker or Singularity specification.
Galaxy allows the mount try "default_ro" which translates to ro for Docker and
ro for Singularity iff no subdirectories are rw (Singularity does not allow ro
parent directories with rw subdirectories).
>>> preprocess_volumes("/a/b", DOCKER_CONTAINER_TYPE)
'/a/b:rw'
>>> preprocess_volumes("/a/b:ro,/a/b/c:rw", DOCKER_CONTAINER_TYPE)
'/a/b:ro,/a/b/c:rw'
>>> preprocess_volumes("/a/b:default_ro,/a/b/c:rw", DOCKER_CONTAINER_TYPE)
'/a/b:ro,/a/b/c:rw'
>>> preprocess_volumes("/a/b:default_ro,/a/b/c:rw", SINGULARITY_CONTAINER_TYPE)
'/a/b:rw,/a/b/c:rw'
"""
volumes_raw_strs = [v.strip() for v in volumes_raw_str.split(",")]
volumes = []
rw_paths = []
for volume_raw_str in volumes_raw_strs:
volume_parts = volume_raw_str.split(":")
if len(volume_parts) > 2:
raise Exception("Unparsable volumes string in configuration [%s]" % volumes_raw_str)
if len(volume_parts) == 1:
volume_parts.append("rw")
volumes.append(volume_parts)
if volume_parts[1] == "rw":
rw_paths.append(volume_parts[0])
for volume in volumes:
path = volume[0]
how = volume[1]
if how == "default_ro":
how = "ro"
if container_type == SINGULARITY_CONTAINER_TYPE:
for rw_path in rw_paths:
if in_directory(rw_path, path):
how = "rw"
volume[1] = how
return ",".join([":".join(v) for v in volumes])
[docs]class HasDockerLikeVolumes:
"""Mixin to share functionality related to Docker volume handling.
Singularity seems to have a fairly compatible syntax for volume handling.
"""
def _expand_volume_str(self, value):
if not value:
return value
template = string.Template(value)
variables = dict()
def add_var(name, value):
if value:
variables[name] = os.path.abspath(value)
add_var("working_directory", self.job_info.working_directory)
add_var("tmp_directory", self.job_info.tmp_directory)
add_var("job_directory", self.job_info.job_directory)
add_var("tool_directory", self.job_info.tool_directory)
add_var("galaxy_root", self.app_info.galaxy_root_dir)
add_var("default_file_path", self.app_info.default_file_path)
add_var("library_import_dir", self.app_info.library_import_dir)
if self.job_info.job_directory and self.job_info.job_directory_type == "pulsar":
# We have a Pulsar job directory, so everything needed (excluding index
# files) should be available in job_directory...
defaults = "$job_directory:default_ro,$tool_directory:default_ro,$job_directory/outputs:rw,$working_directory:rw"
else:
defaults = "$galaxy_root:default_ro,$tool_directory:default_ro"
if self.job_info.job_directory:
defaults += ",$job_directory:default_ro"
if self.job_info.tmp_directory is not None:
defaults += ",$tmp_directory:rw"
if self.app_info.outputs_to_working_directory:
# Should need default_file_path (which is of course an estimate given
# object stores anyway).
defaults += ",$working_directory:rw,$default_file_path:default_ro"
else:
defaults += ",$working_directory:rw,$default_file_path:rw"
if self.app_info.library_import_dir:
defaults += ",$library_import_dir:default_ro"
# Define $defaults that can easily be extended with external library and
# index data without deployer worrying about above details.
variables["defaults"] = string.Template(defaults).safe_substitute(variables)
return template.safe_substitute(variables)
[docs]class DockerContainer(Container, HasDockerLikeVolumes):
container_type = DOCKER_CONTAINER_TYPE
[docs] def containerize_command(self, command):
def prop(name, default):
destination_name = "docker_%s" % name
return self.destination_info.get(destination_name, default)
env_directives = []
for pass_through_var in self.tool_info.env_pass_through:
env_directives.append('"%s=$%s"' % (pass_through_var, pass_through_var))
# Allow destinations to explicitly set environment variables just for
# docker container. Better approach is to set for destination and then
# pass through only what tool needs however. (See todo in ToolInfo.)
for key, value in six.iteritems(self.destination_info):
if key.startswith("docker_env_"):
env = key[len("docker_env_"):]
env_directives.append('"%s=%s"' % (env, value))
working_directory = self.job_info.working_directory
if not working_directory:
raise Exception("Cannot containerize command [%s] without defined working directory." % working_directory)
volumes_raw = self._expand_volume_str(self.destination_info.get("docker_volumes", "$defaults"))
preprocessed_volumes_str = preprocess_volumes(volumes_raw, self.container_type)
# TODO: Remove redundant volumes...
volumes = docker_util.DockerVolume.volumes_from_str(preprocessed_volumes_str)
# If a tool definitely has a temp directory available set it to /tmp in container for compat.
# with CWL. This is part of that spec and should make it easier to share containers between CWL
# and Galaxy.
if self.job_info.tmp_directory is not None:
volumes.append(docker_util.DockerVolume.volume_from_str("%s:/tmp:rw" % self.job_info.tmp_directory))
volumes_from = self.destination_info.get("docker_volumes_from", docker_util.DEFAULT_VOLUMES_FROM)
docker_host_props = dict(
docker_cmd=prop("cmd", docker_util.DEFAULT_DOCKER_COMMAND),
sudo=asbool(prop("sudo", docker_util.DEFAULT_SUDO)),
sudo_cmd=prop("sudo_cmd", docker_util.DEFAULT_SUDO_COMMAND),
host=prop("host", docker_util.DEFAULT_HOST),
)
cached_image_file = self.__get_cached_image_file()
if not cached_image_file:
# TODO: Add option to cache it once here and create cached_image_file.
cache_command = docker_util.build_docker_cache_command(self.container_id, **docker_host_props)
else:
cache_command = self.__cache_from_file_command(cached_image_file, docker_host_props)
run_command = docker_util.build_docker_run_command(
command,
self.container_id,
volumes=volumes,
volumes_from=volumes_from,
env_directives=env_directives,
working_directory=working_directory,
net=prop("net", "none"), # By default, docker instance has networking disabled
auto_rm=asbool(prop("auto_rm", docker_util.DEFAULT_AUTO_REMOVE)),
set_user=prop("set_user", docker_util.DEFAULT_SET_USER),
run_extra_arguments=prop("run_extra_arguments", docker_util.DEFAULT_RUN_EXTRA_ARGUMENTS),
**docker_host_props
)
return "%s\n%s" % (cache_command, run_command)
def __cache_from_file_command(self, cached_image_file, docker_host_props):
images_cmd = docker_util.build_docker_images_command(truncate=False, **docker_host_props)
load_cmd = docker_util.build_docker_load_command(**docker_host_props)
return string.Template(LOAD_CACHED_IMAGE_COMMAND_TEMPLATE).safe_substitute(
cached_image_file=cached_image_file,
images_cmd=images_cmd,
load_cmd=load_cmd
)
def __get_cached_image_file(self):
container_id = self.container_id
cache_directory = os.path.abspath(self.__get_destination_overridable_property("container_image_cache_path"))
cache_path = docker_cache_path(cache_directory, container_id)
return cache_path if os.path.exists(cache_path) else None
def __get_destination_overridable_property(self, name):
prop_name = "docker_%s" % name
if prop_name in self.destination_info:
return self.destination_info[prop_name]
else:
return getattr(self.app_info, name)
[docs]def docker_cache_path(cache_directory, container_id):
file_container_id = container_id.replace("/", "_slash_")
cache_file_name = "docker_%s.tar" % file_container_id
return os.path.join(cache_directory, cache_file_name)
[docs]class SingularityContainer(Container, HasDockerLikeVolumes):
container_type = SINGULARITY_CONTAINER_TYPE
[docs] def containerize_command(self, command):
def prop(name, default):
destination_name = "singularity_%s" % name
return self.destination_info.get(destination_name, default)
env = []
for pass_through_var in self.tool_info.env_pass_through:
env.append((pass_through_var, "$%s" % pass_through_var))
# Allow destinations to explicitly set environment variables just for
# docker container. Better approach is to set for destination and then
# pass through only what tool needs however. (See todo in ToolInfo.)
for key, value in six.iteritems(self.destination_info):
if key.startswith("singularity_env_"):
real_key = key[len("singularity_env_"):]
env.append((real_key, value))
working_directory = self.job_info.working_directory
if not working_directory:
raise Exception("Cannot containerize command [%s] without defined working directory." % working_directory)
volumes_raw = self._expand_volume_str(self.destination_info.get("singularity_volumes", "$defaults"))
preprocessed_volumes_str = preprocess_volumes(volumes_raw, self.container_type)
volumes = docker_util.DockerVolume.volumes_from_str(preprocessed_volumes_str)
singularity_target_kwds = dict(
singularity_cmd=prop("cmd", singularity_util.DEFAULT_SINGULARITY_COMMAND),
sudo=asbool(prop("sudo", singularity_util.DEFAULT_SUDO)),
sudo_cmd=prop("sudo_cmd", singularity_util.DEFAULT_SUDO_COMMAND),
)
run_command = singularity_util.build_singularity_run_command(
command,
self.container_id,
volumes=volumes,
env=env,
working_directory=working_directory,
run_extra_arguments=prop("run_extra_arguments", singularity_util.DEFAULT_RUN_EXTRA_ARGUMENTS),
**singularity_target_kwds
)
return run_command
CONTAINER_CLASSES = dict(
docker=DockerContainer,
singularity=SingularityContainer,
)
NULL_CONTAINER = NullContainer()