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# 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.
from ironic_python_agent import errors
from ironic_python_agent import hardware
from ironic_python_agent import utils
from oslo_config import cfg
from oslo_log import log
from functools import partial
import yaml
CONF = cfg.CONF
LOG = log.getLogger(__name__)
class ContainerHardwareManager(hardware.HardwareManager):
"""Hardware manager for container-based cleanup."""
HARDWARE_MANAGER_NAME = "ContainerHardwareManager"
HARDWARE_MANAGER_VERSION = "1"
def __init__(self):
self.STEPS = None
def _load_steps_from_yaml(self, file_path):
"""Load steps from YAML file."""
try:
with open(file_path, 'r') as file:
data = yaml.safe_load(file)
return data.get('steps', [])
except Exception as e:
LOG.debug("Error loading steps from YAML file: %s", e)
return []
def container_clean_step(self, node, ports, container_url,
pull_options=None, run_options=None):
try:
pull_options = pull_options or CONF.container.pull_options
run_options = run_options or CONF.container.run_options
utils.execute(CONF.container.runner, "pull",
*pull_options, container_url)
utils.execute(CONF.container.runner, "run",
*run_options, container_url)
LOG.info("Container step completed for image: %s", container_url)
except Exception as e:
LOG.exception("Error during container operation: %s", e)
raise
def _create_cleanup_method(self, container_url, pull_options=None,
run_options=None):
return partial(self.container_clean_step, container_url=container_url,
pull_options=pull_options, run_options=run_options)
def _create_container_step(self):
return {
"step": "container_clean_step",
"priority": 0, # run only manual cleaning
"interface": "deploy",
"reboot_requested": False,
"abortable": True,
"argsinfo": {
"container_url": {"description": "Container image URL"},
"pull_options": {"description": "Pull options",
"required": False},
"run_options": {"description": "Run options",
"required": False},
},
}
def evaluate_hardware_support(self):
"""Determine if container runner exists and return support level."""
containers_runners = ["podman", "docker"]
for runner in containers_runners:
try:
stdout, _ = utils.execute("which", runner)
LOG.debug("Found %s, returning MAINLINE",
runner)
return hardware.HardwareSupport.MAINLINE
except Exception as e:
LOG.debug("Error checking container runner: %s", e)
LOG.debug("No container runner found, returning NONE")
return hardware.HardwareSupport.NONE
def get_clean_steps(self, node, ports):
"""Dynamically generate cleaning steps."""
self.STEPS = self._load_steps_from_yaml(
CONF.container['container_steps_file'])
steps = [self._create_container_step()]
for step in self.STEPS:
try:
steps.append(
{
"step": step["name"],
"priority": step["priority"],
"interface": step['interface'],
"reboot_requested": step['reboot_requested'],
"abortable": step["abortable"],
}
)
except KeyError as e:
missing_key = str(e)
step_name = step.get("name", "unknown")
LOG.exception("Missing key '%s' in cleaning step: %s",
missing_key, step_name)
raise errors.HardwareManagerConfigurationError(
f"Missing required key '{missing_key}' in cleaning step:\
{step_name}"
)
return steps
def get_service_steps(self, node, ports):
return self.get_clean_steps(node, ports)
def get_deploy_steps(self, node, ports):
return self.get_clean_steps(node, ports)
def __getattr__(self, name):
ALLOW_ARBITRARY_CONTAINERS = CONF.container
['allow_arbitrary_containers']
ALLOWED_CONTAINERS = CONF.container['allowed_containers']
if self.STEPS is None:
self.STEPS = self._load_steps_from_yaml(
CONF.container['container_steps_file'])
for step in self.STEPS:
if step.get('name') == name:
if not ALLOW_ARBITRARY_CONTAINERS:
if step.get('image') not in ALLOWED_CONTAINERS:
LOG.debug(
"%s is not registered as ALLOWED_CONTAINERS "
"in ironic-python-agent.conf", step.get('image')
)
continue
return self._create_cleanup_method(
container_url=step.get('image'),
pull_options=step.get(
'pull_options'),
run_options=step
.get('run_options'))
raise AttributeError(
"%s object has no attribute %s", self.__class__.__name__, name)
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