def _bootstrap_config(config: Dict[str, Any],
no_config_cache: bool = False) -> Dict[str, Any]:
config = prepare_config(config)
hasher = hashlib.sha1()
hasher.update(json.dumps([config], sort_keys=True).encode("utf-8"))
cache_key = os.path.join(tempfile.gettempdir(),
"ray-config-{}".format(hasher.hexdigest()))
if os.path.exists(cache_key) and not no_config_cache:
cli_logger.old_info(logger, "Using cached config at {}", cache_key)
config_cache = json.loads(open(cache_key).read())
if config_cache.get("_version", -1) == CONFIG_CACHE_VERSION:
# todo: is it fine to re-resolve? afaik it should be.
# we can have migrations otherwise or something
# but this seems overcomplicated given that resolving is
# relatively cheap
try_reload_log_state(config_cache["config"]["provider"],
config_cache.get("provider_log_info"))
cli_logger.verbose("Loaded cached config from " + cf.bold("{}"),
cache_key)
return config_cache["config"]
else:
cli_logger.warning(
"Found cached cluster config "
"but the version " + cf.bold("{}") + " "
"(expected " + cf.bold("{}") + ") does not match.\n"
"This is normal if cluster launcher was updated.\n"
"Config will be re-resolved.",
config_cache.get("_version", "none"), CONFIG_CACHE_VERSION)
validate_config(config)
importer = NODE_PROVIDERS.get(config["provider"]["type"])
if not importer:
raise NotImplementedError("Unsupported provider {}".format(
config["provider"]))
provider_cls = importer(config["provider"])
with cli_logger.timed( # todo: better message
"Bootstraping {} config",
PROVIDER_PRETTY_NAMES.get(config["provider"]["type"])):
resolved_config = provider_cls.bootstrap_config(config)
if not no_config_cache:
with open(cache_key, "w") as f:
config_cache = {
"_version": CONFIG_CACHE_VERSION,
"provider_log_info": try_get_log_state(config["provider"]),
"config": resolved_config
}
f.write(json.dumps(config_cache))
return resolved_config
def wait_for_ip(self, deadline):
# if we have IP do not print waiting info
ip = self._get_node_ip()
if ip is not None:
cli_logger.labeled_value("Fetched IP", ip)
return ip
interval = 10
with cli_logger.timed("Waiting for IP"):
while time.time() < deadline and \
not self.provider.is_terminated(self.node_id):
cli_logger.old_info(logger, "{}Waiting for IP...",
self.log_prefix)
ip = self._get_node_ip()
if ip is not None:
cli_logger.labeled_value("Received", ip)
return ip
cli_logger.print("Not yet available, retrying in {} seconds",
cf.bold(str(interval)))
time.sleep(interval)
return None
def get_or_create_head_node(config,
config_file,
no_restart,
restart_only,
yes,
override_cluster_name,
_provider=None,
_runner=subprocess):
"""Create the cluster head node, which in turn creates the workers."""
provider = (_provider or get_node_provider(config["provider"],
config["cluster_name"]))
config = copy.deepcopy(config)
raw_config_file = config_file # used for printing to the user
config_file = os.path.abspath(config_file)
try:
head_node_tags = {
TAG_RAY_NODE_KIND: NODE_KIND_HEAD,
}
nodes = provider.non_terminated_nodes(head_node_tags)
if len(nodes) > 0:
head_node = nodes[0]
else:
head_node = None
if not head_node:
cli_logger.confirm(yes, "No head node found. "
"Launching a new cluster.",
_abort=True)
cli_logger.old_confirm("This will create a new cluster", yes)
elif not no_restart:
cli_logger.old_confirm("This will restart cluster services", yes)
if head_node:
if restart_only:
cli_logger.confirm(
yes, "Updating cluster configuration and "
"restarting the cluster Ray runtime. "
"Setup commands will not be run due to `{}`.\n",
cf.bold("--restart-only"),
_abort=True)
elif no_restart:
cli_logger.print(
"Cluster Ray runtime will not be restarted due "
"to `{}`.", cf.bold("--no-restart"))
cli_logger.confirm(yes, "Updating cluster configuration and "
"running setup commands.",
_abort=True)
else:
cli_logger.print(
"Updating cluster configuration and running full setup.")
cli_logger.confirm(
yes,
cf.bold("Cluster Ray runtime will be restarted."),
_abort=True)
cli_logger.newline()
# TODO(ekl) this logic is duplicated in node_launcher.py (keep in sync)
head_node_config = copy.deepcopy(config["head_node"])
if "head_node_type" in config:
head_node_tags[TAG_RAY_USER_NODE_TYPE] = config["head_node_type"]
head_node_config.update(config["available_node_types"][
config["head_node_type"]]["node_config"])
launch_hash = hash_launch_conf(head_node_config, config["auth"])
if head_node is None or provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG) != launch_hash:
with cli_logger.group("Acquiring an up-to-date head node"):
if head_node is not None:
cli_logger.print(
"Currently running head node is out-of-date with "
"cluster configuration")
cli_logger.print(
"hash is {}, expected {}",
cf.bold(
provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG)), cf.bold(launch_hash))
cli_logger.confirm(yes, "Relaunching it.", _abort=True)
cli_logger.old_confirm(
"Head node config out-of-date. It will be terminated",
yes)
cli_logger.old_info(
logger, "get_or_create_head_node: "
"Shutting down outdated head node {}", head_node)
provider.terminate_node(head_node)
cli_logger.print("Terminated head node {}", head_node)
cli_logger.old_info(
logger,
"get_or_create_head_node: Launching new head node...")
head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash
head_node_tags[TAG_RAY_NODE_NAME] = "ray-{}-head".format(
config["cluster_name"])
provider.create_node(head_node_config, head_node_tags, 1)
cli_logger.print("Launched a new head node")
start = time.time()
head_node = None
with cli_logger.timed("Fetching the new head node"):
while True:
if time.time() - start > 50:
cli_logger.abort(
"Head node fetch timed out.") # todo: msg
raise RuntimeError("Failed to create head node.")
nodes = provider.non_terminated_nodes(head_node_tags)
if len(nodes) == 1:
head_node = nodes[0]
break
time.sleep(1)
cli_logger.newline()
with cli_logger.group(
"Setting up head node",
_numbered=("<>", 1, 1),
# cf.bold(provider.node_tags(head_node)[TAG_RAY_NODE_NAME]),
_tags=dict()): # add id, ARN to tags?
# TODO(ekl) right now we always update the head node even if the
# hash matches.
# We could prompt the user for what they want to do here.
# No need to pass in cluster_sync_files because we use this
# hash to set up the head node
(runtime_hash, file_mounts_contents_hash) = hash_runtime_conf(
config["file_mounts"], None, config)
cli_logger.old_info(
logger,
"get_or_create_head_node: Updating files on head node...")
# Rewrite the auth config so that the head
# node can update the workers
remote_config = copy.deepcopy(config)
# drop proxy options if they exist, otherwise
# head node won't be able to connect to workers
remote_config["auth"].pop("ssh_proxy_command", None)
if "ssh_private_key" in config["auth"]:
remote_key_path = "~/ray_bootstrap_key.pem"
remote_config["auth"]["ssh_private_key"] = remote_key_path
# Adjust for new file locations
new_mounts = {}
for remote_path in config["file_mounts"]:
new_mounts[remote_path] = remote_path
remote_config["file_mounts"] = new_mounts
remote_config["no_restart"] = no_restart
# Now inject the rewritten config and SSH key into the head node
remote_config_file = tempfile.NamedTemporaryFile(
"w", prefix="ray-bootstrap-")
remote_config_file.write(json.dumps(remote_config))
remote_config_file.flush()
config["file_mounts"].update(
{"~/ray_bootstrap_config.yaml": remote_config_file.name})
if "ssh_private_key" in config["auth"]:
config["file_mounts"].update({
remote_key_path:
config["auth"]["ssh_private_key"],
})
cli_logger.print("Prepared bootstrap config")
if restart_only:
setup_commands = []
ray_start_commands = config["head_start_ray_commands"]
elif no_restart:
setup_commands = config["head_setup_commands"]
ray_start_commands = []
else:
setup_commands = config["head_setup_commands"]
ray_start_commands = config["head_start_ray_commands"]
if not no_restart:
warn_about_bad_start_command(ray_start_commands)
updater = NodeUpdaterThread(
node_id=head_node,
provider_config=config["provider"],
provider=provider,
auth_config=config["auth"],
cluster_name=config["cluster_name"],
file_mounts=config["file_mounts"],
initialization_commands=config["initialization_commands"],
setup_commands=setup_commands,
ray_start_commands=ray_start_commands,
process_runner=_runner,
runtime_hash=runtime_hash,
file_mounts_contents_hash=file_mounts_contents_hash,
is_head_node=True,
docker_config=config.get("docker"))
updater.start()
updater.join()
# Refresh the node cache so we see the external ip if available
provider.non_terminated_nodes(head_node_tags)
if config.get("provider", {}).get("use_internal_ips",
False) is True:
head_node_ip = provider.internal_ip(head_node)
else:
head_node_ip = provider.external_ip(head_node)
if updater.exitcode != 0:
# todo: this does not follow the mockup and is not good enough
cli_logger.abort("Failed to setup head node.")
cli_logger.old_error(
logger, "get_or_create_head_node: "
"Updating {} failed", head_node_ip)
sys.exit(1)
cli_logger.old_info(
logger, "get_or_create_head_node: "
"Head node up-to-date, IP address is: {}", head_node_ip)
monitor_str = "tail -n 100 -f /tmp/ray/session_*/logs/monitor*"
if override_cluster_name:
modifiers = " --cluster-name={}".format(
quote(override_cluster_name))
else:
modifiers = ""
if cli_logger.old_style:
print("To monitor autoscaling activity, you can run:\n\n"
" ray exec {} {}{}\n".format(config_file,
quote(monitor_str), modifiers))
print("To open a console on the cluster:\n\n"
" ray attach {}{}\n".format(config_file, modifiers))
print("To get a remote shell to the cluster manually, run:\n\n"
" {}\n".format(
updater.cmd_runner.remote_shell_command_str()))
cli_logger.newline()
with cli_logger.group("Useful commands"):
cli_logger.print("Monitor autoscaling with")
cli_logger.print(cf.bold(" ray exec {}{} {}"), raw_config_file,
modifiers, quote(monitor_str))
cli_logger.print("Connect to a terminal on the cluster head")
cli_logger.print(cf.bold(" ray attach {}{}"), raw_config_file,
modifiers)
finally:
provider.cleanup()
cli_logger.print("List: {}", cli_logger.render_list([1, 2, 3]))
cli_logger.newline()
cli_logger.very_verbose("Very verbose")
cli_logger.verbose("Verbose")
cli_logger.verbose_warning("Verbose warning")
cli_logger.verbose_error("Verbose error")
cli_logger.print("Info")
cli_logger.success("Success")
cli_logger.warning("Warning")
cli_logger.error("Error")
cli_logger.newline()
try:
cli_logger.abort("Abort")
except Exception:
pass
try:
cli_logger.doassert(False, "Assert")
except Exception:
pass
cli_logger.newline()
cli_logger.confirm(True, "example")
cli_logger.newline()
with cli_logger.indented():
cli_logger.print("Indented")
with cli_logger.group("Group"):
cli_logger.print("Group contents")
with cli_logger.timed("Timed (unimplemented)"):
cli_logger.print("Timed contents")
with cli_logger.verbatim_error_ctx("Verbtaim error"):
cli_logger.print("Error contents")