def get_or_create_head_node(config, config_file, no_restart, restart_only, yes,
override_cluster_name):
"""Create the cluster head node, which in turn creates the workers."""
provider = get_node_provider(config["provider"], config["cluster_name"])
head_node_tags = {
TAG_RAY_NODE_TYPE: "head",
}
nodes = provider.nodes(head_node_tags)
if len(nodes) > 0:
head_node = nodes[0]
else:
head_node = None
if not head_node:
confirm("This will create a new cluster", yes)
elif not no_restart:
confirm("This will restart cluster services", yes)
launch_hash = hash_launch_conf(config["head_node"], config["auth"])
if head_node is None or provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG) != launch_hash:
if head_node is not None:
confirm("Head node config out-of-date. It will be terminated", yes)
logger.info("Terminating outdated head node {}".format(head_node))
provider.terminate_node(head_node)
logger.info("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(config["head_node"], head_node_tags, 1)
nodes = provider.nodes(head_node_tags)
assert len(nodes) == 1, "Failed to create head node."
head_node = nodes[0]
# 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 in this case.
runtime_hash = hash_runtime_conf(config["file_mounts"], config)
logger.info("Updating files on head node...")
# Rewrite the auth config so that the head node can update the workers
remote_key_path = "~/ray_bootstrap_key.pem"
remote_config = copy.deepcopy(config)
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({
remote_key_path:
config["auth"]["ssh_private_key"],
"~/ray_bootstrap_config.yaml":
remote_config_file.name
})
if restart_only:
init_commands = config["head_start_ray_commands"]
elif no_restart:
init_commands = (config["setup_commands"] +
config["head_setup_commands"])
else:
init_commands = (config["setup_commands"] +
config["head_setup_commands"] +
config["head_start_ray_commands"])
updater = NodeUpdaterProcess(head_node,
config["provider"],
config["auth"],
config["cluster_name"],
config["file_mounts"],
init_commands,
runtime_hash,
redirect_output=False)
updater.start()
updater.join()
# Refresh the node cache so we see the external ip if available
provider.nodes(head_node_tags)
if updater.exitcode != 0:
logger.error("Updating {} failed".format(
provider.external_ip(head_node)))
sys.exit(1)
logger.info("Head node up-to-date, IP address is: {}".format(
provider.external_ip(head_node)))
monitor_str = "tail -n 100 -f /tmp/ray/session_*/logs/monitor*"
for s in init_commands:
if ("ray start" in s and "docker exec" in s
and "--autoscaling-config" in s):
monitor_str = "docker exec {} /bin/sh -c {}".format(
config["docker"]["container_name"], quote(monitor_str))
if override_cluster_name:
modifiers = " --cluster-name={}".format(quote(override_cluster_name))
else:
modifiers = ""
print("To monitor auto-scaling 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 ssh manually to the cluster, run:\n\n"
" ssh -i {} {}@{}\n".format(config["auth"]["ssh_private_key"],
config["auth"]["ssh_user"],
provider.external_ip(head_node)))
def get_or_create_head_node(config):
"""Create the cluster head node, which in turn creates the workers."""
provider = get_node_provider(config["provider"], config["cluster_name"])
head_node_tags = {
TAG_RAY_NODE_TYPE: "Head",
}
nodes = provider.nodes(head_node_tags)
if len(nodes) > 0:
head_node = nodes[0]
else:
head_node = None
launch_hash = hash_launch_conf(config["head_node"], config["auth"])
if head_node is None or provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG) != launch_hash:
if head_node is not None:
print("Terminating outdated head node {}".format(head_node))
provider.terminate_node(head_node)
print("Launching new head node...")
head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash
head_node_tags[TAG_NAME] = "ray-{}-head".format(config["cluster_name"])
provider.create_node(config["head_node"], head_node_tags, 1)
nodes = provider.nodes(head_node_tags)
assert len(nodes) == 1, "Failed to create head node."
head_node = nodes[0]
runtime_hash = hash_runtime_conf(config["file_mounts"], config)
if provider.node_tags(head_node).get(
TAG_RAY_RUNTIME_CONFIG) != runtime_hash:
print("Updating files on head node...")
# Rewrite the auth config so that the head node can update the workers
remote_key_path = "~/ray_bootstrap_key.pem"
remote_config = copy.deepcopy(config)
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
# 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({
remote_key_path: config["auth"]["ssh_private_key"],
"~/ray_bootstrap_config.yaml": remote_config_file.name
})
updater = NodeUpdaterProcess(
head_node,
config["provider"],
config["auth"],
config["cluster_name"],
config["file_mounts"],
config["head_init_commands"],
runtime_hash,
redirect_output=False)
updater.start()
updater.join()
if updater.exitcode != 0:
print("Error: updating {} failed".format(
provider.external_ip(head_node)))
sys.exit(1)
print(
"Head node up-to-date, IP address is: {}".format(
provider.external_ip(head_node)))
print(
"To monitor auto-scaling activity, you can run:\n\n"
" ssh -i {} {}@{} 'tail -f /tmp/raylogs/monitor-*'\n".format(
config["auth"]["ssh_private_key"],
config["auth"]["ssh_user"],
provider.external_ip(head_node)))
def get_or_create_head_node(config, no_restart):
"""Create the cluster head node, which in turn creates the workers."""
provider = get_node_provider(config["provider"], config["cluster_name"])
head_node_tags = {
TAG_RAY_NODE_TYPE: "Head",
}
nodes = provider.nodes(head_node_tags)
if len(nodes) > 0:
head_node = nodes[0]
else:
head_node = None
if not head_node:
confirm("This will create a new cluster")
elif not no_restart:
confirm("This will restart your cluster")
launch_hash = hash_launch_conf(config["head_node"], config["auth"])
if head_node is None or provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG) != launch_hash:
if head_node is not None:
print("Terminating outdated head node {}".format(head_node))
provider.terminate_node(head_node)
print("Launching new head node...")
head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash
head_node_tags[TAG_NAME] = "ray-{}-head".format(config["cluster_name"])
provider.create_node(config["head_node"], head_node_tags, 1)
nodes = provider.nodes(head_node_tags)
assert len(nodes) == 1, "Failed to create head node."
head_node = nodes[0]
# 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 in this case.
runtime_hash = hash_runtime_conf(config["file_mounts"], config)
print("Updating files on head node...")
# Rewrite the auth config so that the head node can update the workers
remote_key_path = "~/ray_bootstrap_key.pem"
remote_config = copy.deepcopy(config)
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({
remote_key_path:
config["auth"]["ssh_private_key"],
"~/ray_bootstrap_config.yaml":
remote_config_file.name
})
if no_restart:
init_commands = (config["setup_commands"] +
config["head_setup_commands"])
else:
init_commands = (config["setup_commands"] +
config["head_setup_commands"] +
config["head_start_ray_commands"])
updater = NodeUpdaterProcess(head_node,
config["provider"],
config["auth"],
config["cluster_name"],
config["file_mounts"],
init_commands,
runtime_hash,
redirect_output=False)
updater.start()
updater.join()
# Refresh the node cache so we see the external ip if available
provider.nodes(head_node_tags)
if updater.exitcode != 0:
print("Error: updating {} failed".format(
provider.external_ip(head_node)))
sys.exit(1)
print("Head node up-to-date, IP address is: {}".format(
provider.external_ip(head_node)))
print("To monitor auto-scaling activity, you can run:\n\n"
" ssh -i {} {}@{} 'tail -f /tmp/raylogs/monitor-*'\n".format(
config["auth"]["ssh_private_key"], config["auth"]["ssh_user"],
provider.external_ip(head_node)))
print("To login to the cluster, run:\n\n"
" ssh -i {} {}@{}\n".format(config["auth"]["ssh_private_key"],
config["auth"]["ssh_user"],
provider.external_ip(head_node)))
def get_or_create_head_node(config, no_restart, yes):
"""Create the cluster head node, which in turn creates the workers."""
provider = get_node_provider(config["provider"], config["cluster_name"])
head_node_tags = {
TAG_RAY_NODE_TYPE: "Head",
}
nodes = provider.nodes(head_node_tags)
if len(nodes) > 0:
head_node = nodes[0]
else:
head_node = None
if not head_node:
confirm("This will create a new cluster", yes)
elif not no_restart:
confirm("This will restart cluster services", yes)
launch_hash = hash_launch_conf(config["head_node"], config["auth"])
if head_node is None or provider.node_tags(head_node).get(
TAG_RAY_LAUNCH_CONFIG) != launch_hash:
if head_node is not None:
confirm("Head node config out-of-date. It will be terminated", yes)
print("Terminating outdated head node {}".format(head_node))
provider.terminate_node(head_node)
print("Launching new head node...")
head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash
head_node_tags[TAG_NAME] = "ray-{}-head".format(config["cluster_name"])
provider.create_node(config["head_node"], head_node_tags, 1)
nodes = provider.nodes(head_node_tags)
assert len(nodes) == 1, "Failed to create head node."
head_node = nodes[0]
# 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 in this case.
runtime_hash = hash_runtime_conf(config["file_mounts"], config)
print("Updating files on head node...")
# Rewrite the auth config so that the head node can update the workers
remote_key_path = "~/ray_bootstrap_key.pem"
remote_config = copy.deepcopy(config)
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({
remote_key_path: config["auth"]["ssh_private_key"],
"~/ray_bootstrap_config.yaml": remote_config_file.name
})
if no_restart:
init_commands = (
config["setup_commands"] + config["head_setup_commands"])
else:
init_commands = (
config["setup_commands"] + config["head_setup_commands"] +
config["head_start_ray_commands"])
updater = NodeUpdaterProcess(
head_node,
config["provider"],
config["auth"],
config["cluster_name"],
config["file_mounts"],
init_commands,
runtime_hash,
redirect_output=False)
updater.start()
updater.join()
# Refresh the node cache so we see the external ip if available
provider.nodes(head_node_tags)
if updater.exitcode != 0:
print("Error: updating {} failed".format(
provider.external_ip(head_node)))
sys.exit(1)
print(
"Head node up-to-date, IP address is: {}".format(
provider.external_ip(head_node)))
monitor_str = "tail -f /tmp/raylogs/monitor-*"
for s in init_commands:
if ("ray start" in s and "docker exec" in s and
"--autoscaling-config" in s):
monitor_str = "docker exec {} /bin/sh -c {}".format(
config["docker"]["container_name"],
quote(monitor_str))
print(
"To monitor auto-scaling activity, you can run:\n\n"
" ssh -i {} {}@{} {}\n".format(
config["auth"]["ssh_private_key"],
config["auth"]["ssh_user"],
provider.external_ip(head_node),
quote(monitor_str)))
print(
"To login to the cluster, run:\n\n"
" ssh -i {} {}@{}\n".format(
config["auth"]["ssh_private_key"],
config["auth"]["ssh_user"],
provider.external_ip(head_node)))