def test_multiple_param_changes(mocker, pcluster_config_reader, test_datadir, src_cluster_label, dst_cluster_label):
_do_mocking_for_tests(mocker)
dst_config_file = "pcluster.config.dst.ini"
duplicate_config_file(dst_config_file, test_datadir)
src_dict = {}
src_dict.update(default_cluster_params)
src_dict["cluster_label"] = src_cluster_label
src_dict["master_subnet_id"] = "subnet-12345678"
src_dict["compute_subnet_id"] = "subnet-12345678"
src_dict["additional_sg"] = "sg-12345678"
src_config_file = pcluster_config_reader(**src_dict)
src_conf = PclusterConfig(config_file=src_config_file, fail_on_file_absence=True)
dst_dict = {}
dst_dict.update(default_cluster_params)
dst_dict["cluster_label"] = dst_cluster_label
dst_dict["master_subnet_id"] = "subnet-1234567a"
dst_dict["compute_subnet_id"] = "subnet-1234567a"
dst_dict["additional_sg"] = "sg-1234567a"
dst_config_file = pcluster_config_reader(dst_config_file, **dst_dict)
dst_conf = PclusterConfig(config_file=dst_config_file)
expected_changes = [
Change("vpc", "default", "master_subnet_id", "subnet-12345678", "subnet-1234567a", UpdatePolicy.UNSUPPORTED),
Change(
"vpc", "default", "compute_subnet_id", "subnet-12345678", "subnet-1234567a", UpdatePolicy.COMPUTE_FLEET_STOP
),
Change("vpc", "default", "additional_sg", "sg-12345678", "sg-1234567a", UpdatePolicy.SUPPORTED),
]
_check_patch(src_conf, dst_conf, expected_changes, UpdatePolicy.UNSUPPORTED)
def start(args):
"""Restore ASG limits or awsbatch CE to min/max/desired."""
stack_name = utils.get_stack_name(args.cluster_name)
pcluster_config = PclusterConfig(config_file=args.config_file,
cluster_name=args.cluster_name)
cluster_section = pcluster_config.get_section("cluster")
if cluster_section.get_param_value("scheduler") == "awsbatch":
LOGGER.info("Enabling AWS Batch compute environment : %s",
args.cluster_name)
max_vcpus = cluster_section.get_param_value("max_vcpus")
desired_vcpus = cluster_section.get_param_value("desired_vcpus")
min_vcpus = cluster_section.get_param_value("min_vcpus")
ce_name = _get_batch_ce(stack_name)
_start_batch_ce(ce_name=ce_name,
min_vcpus=min_vcpus,
desired_vcpus=desired_vcpus,
max_vcpus=max_vcpus)
else:
LOGGER.info("Starting compute fleet : %s", args.cluster_name)
max_queue_size = cluster_section.get_param_value("max_queue_size")
min_desired_size = (
cluster_section.get_param_value("initial_queue_size")
if cluster_section.get_param_value("maintain_initial_size") else 0)
asg_name = _get_asg_name(stack_name)
_set_asg_limits(asg_name=asg_name,
min=min_desired_size,
max=max_queue_size,
desired=min_desired_size)
def test_single_param_change(
test_datadir,
pcluster_config_reader,
mocker,
section_key,
section_label,
param_key,
src_param_value,
dst_param_value,
change_update_policy,
):
_do_mocking_for_tests(mocker)
dst_config_file = "pcluster.config.dst.ini"
duplicate_config_file(dst_config_file, test_datadir)
src_dict = {}
src_dict.update(default_cluster_params)
src_dict[param_key] = src_param_value
src_config_file = pcluster_config_reader(**src_dict)
src_conf = PclusterConfig(config_file=src_config_file, fail_on_file_absence=True)
dst_dict = {}
dst_dict.update(default_cluster_params)
dst_dict[param_key] = dst_param_value
dst_config_file = pcluster_config_reader(dst_config_file, **dst_dict)
dst_conf = PclusterConfig(config_file=dst_config_file)
expected_change = Change(
section_key, section_label, param_key, src_param_value, dst_param_value, change_update_policy
)
_check_patch(src_conf, dst_conf, [expected_change], change_update_policy)
def test_config_to_json(capsys, boto3_stubber, test_datadir, pcluster_config_reader, queues):
queue_settings = ",".join(queues)
# Create a new configuration file from the initial one
dst_config_file = "pcluster.config.{0}.ini".format("_".join(queues))
duplicate_config_file(dst_config_file, test_datadir)
# Created expected json params based on active queues
expected_json_params = _prepare_json_config(queues, test_datadir)
# Mock expected boto3 calls
_mock_boto3(boto3_stubber, expected_json_params, head_node_instance_type="c4.xlarge")
# Load config from created config file
dst_config_file = pcluster_config_reader(dst_config_file, queue_settings=queue_settings)
pcluster_config = PclusterConfig(config_file=dst_config_file, fail_on_file_absence=True)
# Create json storage data from config
storage_data = pcluster_config.to_storage()
# Check that created json params match the expected ones
assert_that(json.dumps(storage_data.json_params, indent=2, sort_keys=True)).is_equal_to(
json.dumps(expected_json_params, indent=2, sort_keys=True)
)
readouterr = capsys.readouterr()
assert_that(readouterr.err).is_equal_to("")
pass
def test_config_patch(mocker):
_do_mocking_for_tests(mocker)
# We need to provide a region to PclusterConfig to avoid no region exception.
# Which region to provide is arbitrary.
os.environ["AWS_DEFAULT_REGION"] = "us-east-1"
src_conf = PclusterConfig()
dst_conf = PclusterConfig()
# Two new configs must always be equal
_check_patch(src_conf, dst_conf, [], UpdatePolicy.SUPPORTED)
def status(args): # noqa: C901 FIXME!!!
stack_name = utils.get_stack_name(args.cluster_name)
# Parse configuration file to read the AWS section
PclusterConfig.init_aws(config_file=args.config_file)
cfn = boto3.client("cloudformation")
try:
stack = utils.get_stack(stack_name, cfn)
sys.stdout.write("\rStatus: %s" % stack.get("StackStatus"))
sys.stdout.flush()
if not args.nowait:
while stack.get("StackStatus") not in [
"CREATE_COMPLETE",
"UPDATE_COMPLETE",
"UPDATE_ROLLBACK_COMPLETE",
"ROLLBACK_COMPLETE",
"CREATE_FAILED",
"DELETE_FAILED",
]:
time.sleep(5)
stack = utils.get_stack(stack_name, cfn)
events = utils.get_stack_events(stack_name)[0]
resource_status = (
"Status: %s - %s" % (events.get("LogicalResourceId"), events.get("ResourceStatus"))
).ljust(80)
sys.stdout.write("\r%s" % resource_status)
sys.stdout.flush()
sys.stdout.write("\rStatus: %s\n" % stack.get("StackStatus"))
sys.stdout.flush()
if stack.get("StackStatus") in ["CREATE_COMPLETE", "UPDATE_COMPLETE", "UPDATE_ROLLBACK_COMPLETE"]:
state = _poll_head_node_state(stack_name)
if state == "running":
_print_stack_outputs(stack)
_print_compute_fleet_status(args.cluster_name, stack)
elif stack.get("StackStatus") in ["ROLLBACK_COMPLETE", "CREATE_FAILED", "DELETE_FAILED"]:
events = utils.get_stack_events(stack_name)
for event in events:
if event.get("ResourceStatus") in ["CREATE_FAILED", "DELETE_FAILED", "UPDATE_FAILED"]:
LOGGER.info(
"%s %s %s %s %s",
event.get("Timestamp"),
event.get("ResourceStatus"),
event.get("ResourceType"),
event.get("LogicalResourceId"),
event.get("ResourceStatusReason"),
)
else:
sys.stdout.write("\n")
sys.stdout.flush()
except ClientError as e:
LOGGER.critical(e.response.get("Error").get("Message"))
sys.stdout.flush()
sys.exit(1)
except KeyboardInterrupt:
LOGGER.info("\nExiting...")
sys.exit(0)
def test_example_config_consistency(mocker):
"""Validate example file and try to convert to CFN."""
mocker.patch("pcluster.config.param_types.get_avail_zone",
return_value="mocked_avail_zone")
pcluster_config = PclusterConfig(
config_file=utils.get_pcluster_config_example(),
fail_on_file_absence=True)
cfn_params = pcluster_config.to_cfn()
assert_that(len(cfn_params)).is_equal_to(CFN_CONFIG_NUM_OF_PARAMS)
def init_pcluster_config_from_configparser(config_parser, validate=True):
with tempfile.NamedTemporaryFile(delete=False) as config_file:
with open(config_file.name, "w") as cf:
config_parser.write(cf)
pcluster_config = PclusterConfig(
config_file=config_file.name, cluster_label="default", fail_on_file_absence=True
)
if validate:
pcluster_config.validate()
return pcluster_config
def delete(args):
saw_update = False
LOGGER.info("Deleting: %s", args.cluster_name)
stack_name = utils.get_stack_name(args.cluster_name)
# Parse configuration file to read the AWS section
PclusterConfig.init_aws(config_file=args.config_file)
cfn = boto3.client("cloudformation")
try:
# delete_stack does not raise an exception if stack does not exist
# Use describe_stacks to explicitly check if the stack exists
cfn.describe_stacks(StackName=stack_name)
cfn.delete_stack(StackName=stack_name)
saw_update = True
stack_status = utils.get_stack(stack_name, cfn).get("StackStatus")
sys.stdout.write("\rStatus: %s" % stack_status)
sys.stdout.flush()
LOGGER.debug("Status: %s", stack_status)
if not args.nowait:
while stack_status == "DELETE_IN_PROGRESS":
time.sleep(5)
stack_status = utils.get_stack(stack_name,
cfn).get("StackStatus")
events = cfn.describe_stack_events(
StackName=stack_name).get("StackEvents")[0]
resource_status = ("Status: %s - %s" %
(events.get("LogicalResourceId"),
events.get("ResourceStatus"))).ljust(80)
sys.stdout.write("\r%s" % resource_status)
sys.stdout.flush()
sys.stdout.write("\rStatus: %s\n" % stack_status)
sys.stdout.flush()
LOGGER.debug("Status: %s", stack_status)
else:
sys.stdout.write("\n")
sys.stdout.flush()
if stack_status == "DELETE_FAILED":
LOGGER.info(
"Cluster did not delete successfully. Run 'pcluster delete %s' again",
args.cluster_name)
except ClientError as e:
if e.response.get("Error").get("Message").endswith("does not exist"):
if saw_update:
LOGGER.info("\nCluster deleted successfully.")
sys.exit(0)
LOGGER.critical(e.response.get("Error").get("Message"))
sys.stdout.flush()
sys.exit(1)
except KeyboardInterrupt:
LOGGER.info("\nExiting...")
sys.exit(0)
def test_patch_check_cluster_resource_bucket(
old_bucket_name,
new_bucket_name,
is_generated_bucket,
expected_error_row,
mocker,
test_datadir,
pcluster_config_reader,
):
_do_mocking_for_tests(mocker)
mocker.patch("pcluster.config.update_policy._is_bucket_pcluster_generated", return_value=is_generated_bucket)
expected_message_rows = [
["section", "parameter", "old value", "new value", "check", "reason", "action_needed"],
# ec2_iam_role is to make sure other parameters are not affected by cluster_resource_bucket custom logic
["cluster some_cluster", "ec2_iam_role", "some_old_role", "some_new_role", "SUCCEEDED", "-", None],
]
if expected_error_row:
error_message_row = [
"cluster some_cluster",
"cluster_resource_bucket",
old_bucket_name,
new_bucket_name,
"ACTION NEEDED",
(
"'cluster_resource_bucket' parameter is a read_only parameter that cannot be updated. "
"New value '{0}' will be ignored and old value '{1}' will be used if you force the update.".format(
new_bucket_name, old_bucket_name
)
),
"Restore the value of parameter 'cluster_resource_bucket' to '{0}'".format(old_bucket_name),
]
expected_message_rows.append(error_message_row)
src_dict = {"cluster_resource_bucket": old_bucket_name, "ec2_iam_role": "some_old_role"}
dst_dict = {"cluster_resource_bucket": new_bucket_name, "ec2_iam_role": "some_new_role"}
dst_config_file = "pcluster.config.dst.ini"
duplicate_config_file(dst_config_file, test_datadir)
src_config_file = pcluster_config_reader(**src_dict)
src_conf = PclusterConfig(config_file=src_config_file, fail_on_file_absence=True)
dst_config_file = pcluster_config_reader(dst_config_file, **dst_dict)
dst_conf = PclusterConfig(config_file=dst_config_file, fail_on_file_absence=True)
patch = ConfigPatch(base_config=src_conf, target_config=dst_conf)
patch_allowed, rows = patch.check()
assert_that(len(rows)).is_equal_to(len(expected_message_rows))
for line in rows:
# Handle unicode string
line = ["{0}".format(element) if isinstance(element, str) else element for element in line]
assert_that(expected_message_rows).contains(line)
assert_that(patch_allowed).is_equal_to(not expected_error_row)
def test_adaptation(mocker, test_datadir, pcluster_config_reader, test):
_do_mocking_for_tests(mocker)
base_config_file_name = "pcluster.config.base.ini"
duplicate_config_file(base_config_file_name, test_datadir)
target_config_file_name = "pcluster.config.dst.ini"
duplicate_config_file(target_config_file_name, test_datadir)
base_config_file = pcluster_config_reader(base_config_file_name, **default_cluster_params)
target_config_file = pcluster_config_reader(target_config_file_name, **default_cluster_params)
base_conf = PclusterConfig(config_file=base_config_file, fail_on_file_absence=True)
target_conf = PclusterConfig(config_file=target_config_file, fail_on_file_absence=True)
test(base_conf, target_conf)
def delete(args):
PclusterConfig.init_aws(config_file=args.config_file)
LOGGER.info("Deleting: %s", args.cluster_name)
stack_name = utils.get_stack_name(args.cluster_name)
if not utils.stack_exists(stack_name):
if args.keep_logs:
utils.warn(
"Stack for {0} does not exist. Cannot prevent its log groups from being deleted."
.format(args.cluster_name))
utils.warn("Cluster {0} has already been deleted.".format(
args.cluster_name))
sys.exit(0)
elif args.keep_logs:
_persist_cloudwatch_log_groups(args.cluster_name)
_delete_cluster(args.cluster_name, args.nowait)
def stop(args):
"""Set ASG limits or awsbatch ce to min/max/desired = 0/0/0."""
stack_name = utils.get_stack_name(args.cluster_name)
pcluster_config = PclusterConfig(config_file=args.config_file,
cluster_name=args.cluster_name)
cluster_section = pcluster_config.get_section("cluster")
if cluster_section.get_param_value("scheduler") == "awsbatch":
LOGGER.info("Disabling AWS Batch compute environment : %s",
args.cluster_name)
ce_name = _get_batch_ce(stack_name)
_stop_batch_ce(ce_name=ce_name)
else:
LOGGER.info("Stopping compute fleet : %s", args.cluster_name)
asg_name = _get_asg_name(stack_name)
_set_asg_limits(asg_name=asg_name, min=0, max=0, desired=0)
def assert_section_params(mocker, pcluster_config_reader, settings_label,
expected_cfn_params):
mocker.patch(
"pcluster.config.cfn_param_types.get_supported_architectures_for_instance_type",
return_value=["x86_64"])
mocker.patch(
"pcluster.utils.InstanceTypeInfo.init_from_instance_type",
return_value=InstanceTypeInfo({
"InstanceType": "t2.micro",
"VCpuInfo": {
"DefaultVCpus": 1,
"DefaultCores": 1,
"DefaultThreadsPerCore": 1
},
"NetworkInfo": {
"EfaSupported": False
},
}),
)
if isinstance(expected_cfn_params, SystemExit):
with pytest.raises(SystemExit):
PclusterConfig(
cluster_label="default",
config_file=pcluster_config_reader(
settings_label=settings_label),
fail_on_file_absence=True,
fail_on_error=True,
)
else:
pcluster_config = PclusterConfig(
config_file=pcluster_config_reader(settings_label=settings_label),
fail_on_file_absence=True)
cfn_params = pcluster_config.to_cfn()
assert_that(len(cfn_params)).is_equal_to(
get_cfn_config_num_of_params(pcluster_config))
remove_ignored_params(cfn_params)
for param_key, _ in cfn_params.items():
assert_that(cfn_params.get(param_key),
description=param_key).is_equal_to(
expected_cfn_params.get(param_key))
def stop(args):
"""Stop cluster compute fleet."""
pcluster_config = PclusterConfig(
config_file=args.config_file,
cluster_name=args.cluster_name,
auto_refresh=False,
enforce_version=False,
skip_load_json_config=True,
)
pcluster_config.cluster_model.get_stop_command(pcluster_config).stop(args, pcluster_config)
def dcv_connect(args):
"""
Execute pcluster dcv connect command.
:param args: pcluster cli arguments.
"""
# Parse configuration file to read the AWS section
PclusterConfig.init_aws(
) # FIXME it always searches for the default configuration file
# Prepare ssh command to execute in the head node instance
stack = get_stack(get_stack_name(args.cluster_name))
shared_dir = get_cfn_param(stack.get("Parameters"), "SharedDir")
head_node_ip, username = get_head_node_ip_and_username(args.cluster_name)
cmd = 'ssh {CFN_USER}@{HEAD_NODE_IP} {KEY} "{REMOTE_COMMAND} {DCV_SHARED_DIR}"'.format(
CFN_USER=username,
HEAD_NODE_IP=head_node_ip,
KEY="-i {0}".format(args.key_path) if args.key_path else "",
REMOTE_COMMAND=DCV_CONNECT_SCRIPT,
DCV_SHARED_DIR=shared_dir,
)
try:
url = retry(_retrieve_dcv_session_url,
func_args=[cmd, args.cluster_name, head_node_ip],
attempts=4)
url_message = "Please use the following one-time URL in your browser within 30 seconds:\n{0}".format(
url)
except DCVConnectionError as e:
error("Something went wrong during DCV connection.\n{0}"
"Please check the logs in the /var/log/parallelcluster/ folder "
"of the head node and submit an issue {1}\n".format(
e, PCLUSTER_ISSUES_LINK))
if args.show_url:
LOGGER.info(url_message)
return
try:
if not webbrowser.open_new(url):
raise webbrowser.Error("Unable to open the Web browser.")
except webbrowser.Error as e:
LOGGER.info("{0}\n{1}".format(e, url_message))
def instances(args):
stack_name = utils.get_stack_name(args.cluster_name)
PclusterConfig.init_aws(config_file=args.config_file)
cfn_stack = utils.get_stack(stack_name)
scheduler = utils.get_cfn_param(cfn_stack.get("Parameters"), "Scheduler")
instances = []
head_node_server = utils.describe_cluster_instances(stack_name, node_type=utils.NodeType.head_node)
if head_node_server:
instances.append(("MasterServer", head_node_server[0].get("InstanceId")))
if scheduler != "awsbatch":
instances.extend(_get_compute_instances(stack_name))
for instance in instances:
LOGGER.info("%s %s", instance[0], instance[1])
if scheduler == "awsbatch":
LOGGER.info("Run 'awsbhosts --cluster %s' to list the compute instances", args.cluster_name)
def instances(args):
stack_name = utils.get_stack_name(args.cluster_name)
pcluster_config = PclusterConfig(config_file=args.config_file,
cluster_name=args.cluster_name)
cluster_section = pcluster_config.get_section("cluster")
instances = []
instances.extend(_get_ec2_instances(stack_name))
if cluster_section.get_param_value("scheduler") != "awsbatch":
instances.extend(_get_asg_instances(stack_name))
for instance in instances:
LOGGER.info("%s %s", instance[0], instance[1])
if cluster_section.get_param_value("scheduler") == "awsbatch":
LOGGER.info(
"Run 'awsbhosts --cluster %s' to list the compute instances",
args.cluster_name)
def get_mocked_pcluster_config(mocker, auto_refresh=False):
mocker.patch(
"pcluster.config.cfn_param_types.get_supported_architectures_for_instance_type",
return_value=["x86_64"])
if "AWS_DEFAULT_REGION" not in os.environ:
# We need to provide a region to PclusterConfig to avoid no region exception.
# Which region to provide is arbitrary.
os.environ["AWS_DEFAULT_REGION"] = "us-east-1"
pcluster_config = PclusterConfig(config_file="wrong-file",
auto_refresh=auto_refresh)
return pcluster_config
def ssh(args, extra_args): # noqa: C901 FIXME!!!
"""
Execute an SSH command to the master instance, according to the [aliases] section if there.
:param args: pcluster CLI args
:param extra_args: pcluster CLI extra_args
"""
pcluster_config = PclusterConfig(
fail_on_error=False
) # FIXME it always search for the default config file
if args.command in pcluster_config.get_section("aliases").params:
ssh_command = pcluster_config.get_section("aliases").get_param_value(
args.command)
else:
ssh_command = "ssh {CFN_USER}@{MASTER_IP} {ARGS}"
try:
master_ip, username = utils.get_master_ip_and_username(
args.cluster_name)
try:
from shlex import quote as cmd_quote
except ImportError:
from pipes import quote as cmd_quote
# build command
cmd = ssh_command.format(
CFN_USER=username,
MASTER_IP=master_ip,
ARGS=" ".join(cmd_quote(str(arg)) for arg in extra_args))
# run command
log_message = "SSH command: {0}".format(cmd)
if not args.dryrun:
LOGGER.debug(log_message)
os.system(cmd)
else:
LOGGER.info(log_message)
except KeyboardInterrupt:
LOGGER.info("\nExiting...")
sys.exit(0)
def assert_section_params(mocker, pcluster_config_reader, settings_label, expected_cfn_params):
if isinstance(expected_cfn_params, SystemExit):
with pytest.raises(SystemExit):
PclusterConfig(
cluster_label="default",
config_file=pcluster_config_reader(settings_label=settings_label),
fail_on_file_absence=True,
fail_on_error=True,
)
else:
pcluster_config = PclusterConfig(
config_file=pcluster_config_reader(settings_label=settings_label), fail_on_file_absence=True
)
cfn_params = pcluster_config.to_cfn()
assert_that(len(cfn_params)).is_equal_to(CFN_CONFIG_NUM_OF_PARAMS)
for param_key, _ in cfn_params.items():
assert_that(cfn_params.get(param_key), description=param_key).is_equal_to(
expected_cfn_params.get(param_key)
)
def convert(args=None):
"""Command to convert SIT cluster section into HIT format."""
try:
# Build the config based on args
pcluster_config = PclusterConfig(
config_file=args.config_file, cluster_label=args.cluster_template, fail_on_file_absence=True
)
# Automatic SIT -> HIT conversion, if needed
conversion_done, reason = HitConverter(pcluster_config).convert(prepare_to_file=True)
if conversion_done:
if args.output_file:
if os.path.isfile(args.output_file):
print("ERROR: File {0} already exists, please select another output file.".format(args.output_file))
sys.exit(1)
else:
pcluster_config.config_file = args.output_file
pcluster_config.to_file(exclude_unrelated_sections=True)
print(
"Section [cluster {label}] from file {input} has been converted and saved into {output}.\n"
"New [queue compute] and [compute_resource default] sections have been created.".format(
label=pcluster_config.get_section("cluster").label,
input=args.config_file,
output=args.output_file,
)
)
else:
print(
"Section [cluster {label}] from file {input} has been converted.\n"
"New [queue compute] and [compute_resource default] sections have been created.\n"
"Configuration file content:\n\n".format(
label=pcluster_config.get_section("cluster").label, input=args.config_file
)
)
pcluster_config.to_file(exclude_unrelated_sections=True, print_stdout=True)
else:
print(reason)
except KeyboardInterrupt:
print("Exiting...")
sys.exit(1)
except Exception as e:
print("Unexpected error of type %s: %s", type(e).__name__, e)
sys.exit(1)
def list_stacks(args):
# Parse configuration file to read the AWS section
PclusterConfig.init_aws(config_file=args.config_file)
try:
result = []
for stack in utils.paginate_boto3(boto3.client("cloudformation").describe_stacks):
if stack.get("ParentId") is None and stack.get("StackName").startswith(PCLUSTER_STACK_PREFIX):
pcluster_version = _get_pcluster_version_from_stack(stack)
result.append(
[
stack.get("StackName")[len(PCLUSTER_STACK_PREFIX) :], # noqa: E203
_colorize(stack.get("StackStatus"), args),
pcluster_version,
]
)
LOGGER.info(tabulate(result, tablefmt="plain"))
except ClientError as e:
LOGGER.critical(e.response.get("Error").get("Message"))
sys.exit(1)
except KeyboardInterrupt:
LOGGER.info("Exiting...")
sys.exit(0)
def init_pcluster_config_from_configparser(config_parser,
validate=True,
auto_refresh=True):
with tempfile.NamedTemporaryFile(delete=False) as config_file:
with open(config_file.name, "w") as cf:
config_parser.write(cf)
if "AWS_DEFAULT_REGION" not in os.environ:
# We need to provide a region to PclusterConfig to avoid no region exception.
# Which region to provide is arbitrary.
os.environ["AWS_DEFAULT_REGION"] = "us-east-1"
pcluster_config = PclusterConfig(config_file=config_file.name,
cluster_label="default",
fail_on_file_absence=True,
auto_refresh=auto_refresh)
if validate:
_validate_config(config_parser, pcluster_config)
return pcluster_config
def dcv_connect(args):
"""
Execute pcluster dcv connect command.
:param args: pcluster cli arguments.
"""
# Parse configuration file to read the AWS section
PclusterConfig.init_aws(
) # FIXME it always searches for the default configuration file
# Prepare ssh command to execute in the master instance
stack = get_stack(get_stack_name(args.cluster_name))
shared_dir = get_cfn_param(stack.get("Parameters"), "SharedDir")
master_ip, username = get_master_ip_and_username(args.cluster_name)
cmd = 'ssh {CFN_USER}@{MASTER_IP} {KEY} "{REMOTE_COMMAND} {DCV_SHARED_DIR}"'.format(
CFN_USER=username,
MASTER_IP=master_ip,
KEY="-i {0}".format(args.key_path) if args.key_path else "",
REMOTE_COMMAND=DCV_CONNECT_SCRIPT,
DCV_SHARED_DIR=shared_dir,
)
# Connect by ssh to the master instance and prepare DCV session
try:
LOGGER.debug("SSH command: {0}".format(cmd))
output = _check_command_output(cmd)
# At first ssh connection, the ssh command alerts it is adding the host to the known hosts list
if re.search("Permanently added .* to the list of known hosts.",
output):
output = _check_command_output(cmd)
dcv_parameters = re.search(
r"PclusterDcvServerPort=([\d]+) PclusterDcvSessionId=([\w]+) PclusterDcvSessionToken=([\w-]+)",
output)
if dcv_parameters:
dcv_server_port = dcv_parameters.group(1)
dcv_session_id = dcv_parameters.group(2)
dcv_session_token = dcv_parameters.group(3)
else:
error(
"Something went wrong during DCV connection. Please manually execute the command:\n{0}\n"
"If the problem persists, please check the logs in the /var/log/parallelcluster/ folder "
"of the master instance and submit an issue {1}.".format(
cmd, PCLUSTER_ISSUES_LINK))
except sub.CalledProcessError as e:
if "{0}: No such file or directory".format(
DCV_CONNECT_SCRIPT) in e.output:
error(
"The cluster {0} has been created with an old version of ParallelCluster "
"without the DCV support.".format(args.cluster_name))
else:
error("Something went wrong during DCV connection.\n{0}".format(
e.output))
# Open web browser
url = "https://{IP}:{PORT}?authToken={TOKEN}#{SESSION_ID}".format(
IP=master_ip,
PORT=dcv_server_port,
TOKEN=dcv_session_token,
SESSION_ID=dcv_session_id)
try:
webbrowser.open_new(url)
except webbrowser.Error:
LOGGER.info(
"Unable to open the Web browser. "
"Please use the following URL in your browser within 30 seconds:\n{0}"
.format(url))
def get_mocked_pcluster_config(mocker):
return PclusterConfig(config_file="wrong-file")
def configure(args):
# Check for invalid path (eg. a directory)
if args.config_file and os.path.exists(
args.config_file) and not os.path.isfile(args.config_file):
error("Invalid configuration file path: {0}".format(args.config_file))
pcluster_config = PclusterConfig(config_file=args.config_file,
fail_on_error=False,
auto_refresh=False)
# FIXME: Overriding HIT config files is currently not supported.
if pcluster_config.cluster_model == ClusterModel.HIT:
error(
"Configuration in file {0} cannot be overwritten. Please specify a different file path"
.format(pcluster_config.config_file))
if os.path.exists(pcluster_config.config_file):
msg = "WARNING: Configuration file {0} will be overwritten."
else:
msg = "INFO: Configuration file {0} will be written."
print(msg.format(pcluster_config.config_file))
print("Press CTRL-C to interrupt the procedure.\n\n")
if not args.region:
# Use built in boto regions as an available option
available_regions = get_regions()
default_region = pcluster_config.get_section("aws").get_param_value(
"aws_region_name")
aws_region_name = prompt_iterable("AWS Region ID",
available_regions,
default_value=default_region)
# Set provided region into os environment for suggestions and validations from here on
os.environ["AWS_DEFAULT_REGION"] = aws_region_name
else:
aws_region_name = args.region
cluster_section = pcluster_config.get_section("cluster")
global_config = pcluster_config.get_section("global")
cluster_label = global_config.get_param_value("cluster_template")
vpc_section = pcluster_config.get_section("vpc")
vpc_label = vpc_section.label
# Get the key name from the current region, if any
available_keys = _get_keys()
default_key = cluster_section.get_param_value("key_name")
key_name = prompt_iterable("EC2 Key Pair Name",
available_keys,
default_value=default_key)
scheduler = prompt_iterable(
"Scheduler",
get_supported_schedulers(),
default_value=cluster_section.get_param_value("scheduler"))
cluster_config = ClusterConfigureHelper(cluster_section, scheduler)
cluster_config.prompt_os()
cluster_config.prompt_cluster_size()
cluster_config.prompt_instance_types()
vpc_parameters = _create_vpc_parameters(vpc_section, cluster_config)
# Here is the end of prompt. Code below assembles config and write to file
cluster_parameters = {"key_name": key_name, "scheduler": scheduler}
cluster_parameters.update(cluster_config.get_scheduler_parameters())
# Remove parameters from the past configuration that can conflict with the user's choices.
_reset_config_params(cluster_section,
cluster_config.get_parameters_to_reset())
_reset_config_params(
vpc_section,
("compute_subnet_id", "use_public_ips", "compute_subnet_cidr"))
# Update configuration values according to user's choices
pcluster_config.region = aws_region_name
cluster_section.label = cluster_label
for param_key, param_value in cluster_parameters.items():
param = cluster_section.get_param(param_key)
param.value = param.get_value_from_string(param_value)
vpc_section.label = vpc_label
for param_key, param_value in vpc_parameters.items():
param = vpc_section.get_param(param_key)
param.value = param.get_value_from_string(param_value)
# Update internal params according to provided parameters and enable auto-refresh before eventual hit conversion
pcluster_config.refresh()
pcluster_config.auto_refresh = True
# Convert file if needed
HitConverter(pcluster_config).convert(prepare_to_file=True)
# Update config file by overriding changed settings
pcluster_config.to_file()
print("Configuration file written to {0}".format(
pcluster_config.config_file))
print(
"You can edit your configuration file or simply run 'pcluster create -c {0} cluster-name' "
"to create your cluster".format(pcluster_config.config_file))
def configure(args):
# Check for invalid path (eg. a directory)
if args.config_file and os.path.exists(
args.config_file) and not os.path.isfile(args.config_file):
error("Invalid configuration file path: {0}".format(args.config_file))
pcluster_config = PclusterConfig(config_file=args.config_file,
fail_on_error=False)
if os.path.exists(pcluster_config.config_file):
msg = "WARNING: Configuration file {0} will be overwritten."
else:
msg = "INFO: Configuration file {0} will be written."
print(msg.format(pcluster_config.config_file))
print("Press CTRL-C to interrupt the procedure.\n\n")
cluster_section = pcluster_config.get_section("cluster")
global_config = pcluster_config.get_section("global")
cluster_label = global_config.get_param_value("cluster_template")
vpc_section = pcluster_config.get_section("vpc")
vpc_label = vpc_section.label
# Use built in boto regions as an available option
available_regions = get_regions()
default_region = pcluster_config.get_section("aws").get_param_value(
"aws_region_name")
aws_region_name = prompt_iterable(
"AWS Region ID",
available_regions,
default_value=default_region
if default_region in available_regions else None,
)
# Set provided region into os environment for suggestions and validations from here on
os.environ["AWS_DEFAULT_REGION"] = aws_region_name
# Get the key name from the current region, if any
available_keys = _get_keys()
default_key = cluster_section.get_param_value("key_name")
key_name = prompt_iterable(
"EC2 Key Pair Name",
available_keys,
default_value=default_key if default_key in available_keys else None)
scheduler = prompt_iterable(
"Scheduler",
get_supported_schedulers(),
default_value=cluster_section.get_param_value("scheduler"))
scheduler_handler = SchedulerHandler(cluster_section, scheduler)
scheduler_handler.prompt_os()
scheduler_handler.prompt_cluster_size()
master_instance_type = prompt(
"Master instance type",
lambda x: x in get_supported_instance_types(),
default_value=cluster_section.get_param_value("master_instance_type"),
)
scheduler_handler.prompt_compute_instance_type()
automate_vpc = prompt("Automate VPC creation? (y/n)",
lambda x: x in ("y", "n"),
default_value="n") == "y"
vpc_parameters = _create_vpc_parameters(vpc_section,
scheduler,
scheduler_handler.max_cluster_size,
automate_vpc_creation=automate_vpc)
cluster_parameters = {
"key_name": key_name,
"scheduler": scheduler,
"master_instance_type": master_instance_type
}
cluster_parameters.update(scheduler_handler.get_scheduler_parameters())
# Remove parameters from the past configuration that can conflict with the user's choices.
_reset_config_params(cluster_section,
scheduler_handler.get_parameters_to_reset())
_reset_config_params(
vpc_section,
("compute_subnet_id", "use_public_ips", "compute_subnet_cidr"))
# Update configuration values according to user's choices
pcluster_config.region = aws_region_name
cluster_section.label = cluster_label
for param_key, param_value in cluster_parameters.items():
param = cluster_section.get_param(param_key)
param.value = param.get_value_from_string(param_value)
vpc_section.label = vpc_label
for param_key, param_value in vpc_parameters.items():
param = vpc_section.get_param(param_key)
param.value = param.get_value_from_string(param_value)
# Update config file by overriding changed settings
pcluster_config.to_file()
print("Configuration file written to {0}".format(
pcluster_config.config_file))
print(
"You can edit your configuration file or simply run 'pcluster create -c {0} cluster-name' "
"to create your cluster".format(pcluster_config.config_file))
def create_ami(args):
LOGGER.info("Building AWS ParallelCluster AMI. This could take a while...")
# Do not autofresh; pcluster_config is only used to get info on vpc section, aws section, and template url
# Logic in autofresh could make unexpected validations not needed in createami
pcluster_config = PclusterConfig(config_file=args.config_file, fail_on_file_absence=True, auto_refresh=False)
ami_info = _validate_createami_args_ami_compatibility(args)
ami_architecture = ami_info.get("Architecture")
LOGGER.debug("Building AMI based on args %s", str(args))
results = {}
instance_type = args.instance_type
try:
vpc_section = pcluster_config.get_section("vpc")
vpc_id = args.vpc_id if args.vpc_id else vpc_section.get_param_value("vpc_id")
subnet_id = args.subnet_id if args.subnet_id else vpc_section.get_param_value("master_subnet_id")
packer_env = {
"CUSTOM_AMI_ID": args.base_ami_id,
"AWS_FLAVOR_ID": instance_type,
"AMI_NAME_PREFIX": args.custom_ami_name_prefix,
"AWS_VPC_ID": vpc_id,
"AWS_SUBNET_ID": subnet_id,
"ASSOCIATE_PUBLIC_IP": "true" if args.associate_public_ip else "false",
}
aws_section = pcluster_config.get_section("aws")
aws_region = aws_section.get_param_value("aws_region_name")
if aws_section and aws_section.get_param_value("aws_access_key_id"):
packer_env["AWS_ACCESS_KEY_ID"] = aws_section.get_param_value("aws_access_key_id")
if aws_section and aws_section.get_param_value("aws_secret_access_key"):
packer_env["AWS_SECRET_ACCESS_KEY"] = aws_section.get_param_value("aws_secret_access_key")
LOGGER.info("Base AMI ID: %s", args.base_ami_id)
LOGGER.info("Base AMI OS: %s", args.base_ami_os)
LOGGER.info("Instance Type: %s", instance_type)
LOGGER.info("Region: %s", aws_region)
LOGGER.info("VPC ID: %s", vpc_id)
LOGGER.info("Subnet ID: %s", subnet_id)
template_url = evaluate_pcluster_template_url(pcluster_config)
tmp_dir = mkdtemp()
cookbook_dir = _get_cookbook_dir(aws_region, template_url, args, tmp_dir)
_get_post_install_script_dir(args.post_install_script, tmp_dir)
packer_command = (
cookbook_dir
+ "/amis/build_ami.sh --os "
+ args.base_ami_os
+ " --partition region"
+ " --region "
+ aws_region
+ " --custom"
+ " --arch "
+ ami_architecture
)
results = _run_packer(packer_command, packer_env)
except KeyboardInterrupt:
LOGGER.info("\nExiting...")
sys.exit(0)
finally:
_print_create_ami_results(results)
if "tmp_dir" in locals() and tmp_dir:
rmtree(tmp_dir)
def create(args): # noqa: C901 FIXME!!!
LOGGER.info("Beginning cluster creation for cluster: %s", args.cluster_name)
LOGGER.debug("Building cluster config based on args %s", str(args))
_validate_cluster_name(args.cluster_name)
# Build the config based on args
pcluster_config = PclusterConfig(
config_file=args.config_file, cluster_label=args.cluster_template, fail_on_file_absence=True
)
pcluster_config.validate()
# Automatic SIT -> HIT conversion, if needed
HitConverter(pcluster_config).convert()
# get CFN parameters, template url and tags from config
storage_data = pcluster_config.to_storage()
cfn_params = storage_data.cfn_params
_check_for_updates(pcluster_config)
bucket_name = None
artifact_directory = None
cleanup_bucket = False
try:
cfn_client = boto3.client("cloudformation")
stack_name = utils.get_stack_name(args.cluster_name)
# merge tags from configuration, command-line and internal ones
tags = _evaluate_tags(pcluster_config, preferred_tags=args.tags)
bucket_name, artifact_directory, cleanup_bucket = _setup_bucket_with_resources(
pcluster_config, storage_data, stack_name, tags
)
cfn_params["ResourcesS3Bucket"] = bucket_name
cfn_params["ArtifactS3RootDirectory"] = artifact_directory
cfn_params["RemoveBucketOnDeletion"] = str(cleanup_bucket)
LOGGER.info("Creating stack named: %s", stack_name)
# determine the CloudFormation Template URL to use
template_url = evaluate_pcluster_template_url(pcluster_config, preferred_template_url=args.template_url)
# append extra parameters from command-line
if args.extra_parameters:
LOGGER.debug("Adding extra parameters to the CFN parameters")
cfn_params.update(dict(args.extra_parameters))
# prepare input parameters for stack creation and create the stack
LOGGER.debug(cfn_params)
params = [{"ParameterKey": key, "ParameterValue": value} for key, value in cfn_params.items()]
stack = cfn_client.create_stack(
StackName=stack_name,
TemplateURL=template_url,
Parameters=params,
Capabilities=["CAPABILITY_IAM"],
DisableRollback=args.norollback,
Tags=tags,
)
LOGGER.debug("StackId: %s", stack.get("StackId"))
if not args.nowait:
verified = utils.verify_stack_creation(stack_name, cfn_client)
LOGGER.info("")
result_stack = utils.get_stack(stack_name, cfn_client)
_print_stack_outputs(result_stack)
if not verified:
sys.exit(1)
else:
stack_status = utils.get_stack(stack_name, cfn_client).get("StackStatus")
LOGGER.info("Status: %s", stack_status)
except ClientError as e:
LOGGER.critical(e.response.get("Error").get("Message"))
sys.stdout.flush()
utils.cleanup_s3_resources(bucket_name, artifact_directory, cleanup_bucket)
sys.exit(1)
except KeyboardInterrupt:
LOGGER.info("\nExiting...")
if not utils.stack_exists(stack_name):
# Cleanup S3 artifacts if stack is not created yet
utils.cleanup_s3_resources(bucket_name, artifact_directory, cleanup_bucket)
sys.exit(0)
except KeyError as e:
LOGGER.critical("ERROR: KeyError - reason:\n%s", e)
utils.cleanup_s3_resources(bucket_name, artifact_directory, cleanup_bucket)
sys.exit(1)
except Exception as e:
LOGGER.critical(e)
utils.cleanup_s3_resources(bucket_name, artifact_directory, cleanup_bucket)
sys.exit(1)