def axmon_domains_list():
"""
Return a list of hosted zones (domains) that the cluster has access to
Returns:
{ 'result': [list of domains] }
"""
cluster_config = AXClusterConfig(cluster_name_id=cluster_name_id)
if Cloud().target_cloud_gcp() or cluster_config.get_provider() == "minikube":
return jsonify([])
else:
r53client = Route53(boto3.client("route53"))
return jsonify(result=[x.name for x in r53client.list_hosted_zones()])
class AXPlatform(object):
def __new__(cls, *args, **kwargs):
if Cloud().target_cloud_gcp():
from .gke_platform import AXGKEPlatform
return super(AXPlatform, cls).__new__(AXGKEPlatform)
else:
return super(AXPlatform, cls).__new__(cls)
def __init__(
self,
cluster_name_id=None,
aws_profile=None,
debug=True,
manifest_root=AXPlatformConfigDefaults.DefaultManifestRoot,
config_file=AXPlatformConfigDefaults.DefaultPlatformConfigFile,
software_info=None):
"""
AX Platform bootstrap
:param cluster_name_id: cluster name id
:param aws_profile: aws profile to authenticate all aws clients
:param debug: debug mode
:param manifest_root: root directory to all ax service objects
"""
self._software_info = software_info if software_info else SoftwareInfo(
)
assert isinstance(
self._software_info, SoftwareInfo
), "Wrong type ({}) of software info passed in.".format(
self._software_info)
self._aws_profile = aws_profile
self._manifest_root = manifest_root
self._config = AXPlatformConfig(config_file)
logger.info("Using Kubernetes manifest from %s", self._manifest_root)
logger.info("Using platform configuration \"%s\" from %s",
self._config.name, config_file)
self._cluster_name_id = AXClusterId(
cluster_name_id).get_cluster_name_id()
self._cluster_config = AXClusterConfig(
cluster_name_id=self._cluster_name_id,
aws_profile=self._aws_profile)
self._cluster_config_path = AXClusterConfigPath(cluster_name_id)
self._cluster_info = AXClusterInfo(self._cluster_name_id,
aws_profile=self._aws_profile)
self._region = self._cluster_config.get_region()
if Cloud().target_cloud_aws():
self._account = AWSAccountInfo(
aws_profile=self._aws_profile).get_account_id()
else:
self._account = ""
self._bucket_name = self._cluster_config_path.bucket()
self._bucket = Cloud().get_bucket(self._bucket_name,
aws_profile=self._aws_profile,
region=self._region)
# In debug mode, when we failed to create an object, we don't delete it but just
# leave it for debug.
self._debug = debug
# DNS
self.cluster_dns_name = None
# Get kube cluster config. Automatic if in pod already.
self._kube_config = self._cluster_info.get_kube_config_file_path(
) if self._cluster_name_id else None
if self._cluster_name_id:
if not os.path.isfile(self._kube_config):
logger.info(
"Can't find config file at %s; downloading from s3",
self._kube_config)
self._kube_config = self._cluster_info.download_kube_config()
assert os.path.isfile(
self._kube_config), "No kube_config file available"
# Kubernetes related objects and macros
self.kube_namespaces = [AXNameSpaces.AXSYS, AXNameSpaces.AXUSER]
self.kube_axsys_namespace = AXNameSpaces.AXSYS
self.kube_user_namespace = AXNameSpaces.AXUSER
self.kubectl = KubernetesApiClient(config_file=self._kube_config)
self.kube_poll = KubeObjPoll(kubectl=self.kubectl)
self._monitor = AXKubeMonitor(kubectl=self.kubectl)
self._monitor.reload_monitors(namespace=self.kube_axsys_namespace)
self._monitor.start()
# Kube Objects
self._kube_objects = {}
self._replacing = {}
def _load_kube_objects_from_steps(self, steps):
"""
Extract kube objects from steps in config, and load them into memory
:param steps: list
:return:
"""
for object_group in steps:
assert isinstance(object_group, AXPlatformObjectGroup)
for obj in object_group.object_set:
assert isinstance(obj, AXPlatformObject)
name = obj.name
filename = obj.manifest
namespace = obj.namespace
if name in self._kube_objects:
raise ValueError("Duplicated object name {}".format(name))
kubeobj_conf_path = os.path.join(self._manifest_root, filename)
self._kube_objects[name] = KubeObject(
config_file=kubeobj_conf_path,
kubepoll=self.kube_poll,
replacing=None,
kube_config=self._kube_config,
kube_namespace=namespace)
def _get_trusted_cidr_str(self):
trusted_cidr = self._cluster_config.get_trusted_cidr()
if isinstance(trusted_cidr, list):
trusted_cidr_str = "["
for cidr in trusted_cidr:
trusted_cidr_str += "\"{}\",".format(str(cidr))
trusted_cidr_str = trusted_cidr_str[:-1]
trusted_cidr_str += "]"
else:
trusted_cidr_str = "[{}]".format(trusted_cidr)
return trusted_cidr_str
def _generate_replacing_for_user_provisioned_cluster(self):
trusted_cidr_str = self._get_trusted_cidr_str()
self._persist_node_resource_rsvp(0, 0)
with open("/kubernetes/cluster/version.txt", "r") as f:
cluster_install_version = f.read().strip()
return {
"REGISTRY":
self._software_info.registry,
"REGISTRY_SECRETS":
self._software_info.registry_secrets,
"NAMESPACE":
self._software_info.image_namespace,
"VERSION":
self._software_info.image_version,
"AX_CLUSTER_NAME_ID":
self._cluster_name_id,
"AX_AWS_REGION":
self._region,
"AX_AWS_ACCOUNT":
self._account,
"AX_CUSTOMER_ID":
AXCustomerId().get_customer_id(),
"TRUSTED_CIDR":
trusted_cidr_str,
"NEW_KUBE_SALT_SHA1":
os.getenv("NEW_KUBE_SALT_SHA1") or " ",
"NEW_KUBE_SERVER_SHA1":
os.getenv("NEW_KUBE_SERVER_SHA1") or " ",
"AX_KUBE_VERSION":
os.getenv("AX_KUBE_VERSION"),
"AX_CLUSTER_INSTALL_VERSION":
cluster_install_version,
"SANDBOX_ENABLED":
str(self._cluster_config.get_sandbox_flag()),
"ARGO_LOG_BUCKET_NAME":
self._cluster_config.get_support_object_store_name(),
"AX_CLUSTER_META_URL_V1":
self._bucket.get_object_url_from_key(
key=self._cluster_config_path.cluster_metadata()),
"DNS_SERVER_IP":
os.getenv("DNS_SERVER_IP", default_kube_up_env["DNS_SERVER_IP"]),
"ARGO_DATA_BUCKET_NAME":
AXClusterConfigPath(self._cluster_name_id).bucket(),
"LOAD_BALANCER_TYPE":
"LoadBalancer",
"ARGO_S3_ACCESS_KEY_ID":
base64.b64encode(os.getenv("ARGO_S3_ACCESS_KEY_ID", "")),
"ARGO_S3_ACCESS_KEY_SECRET":
base64.b64encode(os.getenv("ARGO_S3_ACCESS_KEY_SECRET", "")),
}
def _generate_replacing(self):
# Platform code are running in python 2.7, and therefore for trusted cidr list, the str() method
# will return something like [u'54.149.149.230/32', u'73.70.250.25/32', u'104.10.248.90/32'], and
# this 'u' prefix cannot be surpressed. With this prefix, our macro replacing would create invalid
# yaml files, and therefore we construct string manually here
trusted_cidr_str = self._get_trusted_cidr_str()
axsys_cpu = 0
axsys_mem = 0
daemon_cpu = 0
daemon_mem = 0
for name in self._kube_objects.keys():
cpu, mem, dcpu, dmem = self._kube_objects[name].resource_usage
axsys_cpu += cpu
axsys_mem += mem
daemon_cpu += dcpu
daemon_mem += dmem
# kube-proxy (100m CPU and 100Mi memory. Note kube-proxy does not
# have a memory request, but this is an approximation)
daemon_cpu += 100
daemon_mem += 100
logger.info(
"Resource Usages: axsys_cpu: %s milicores, axsys_mem: %s Mi, node_daemon_cpu: %s milicores, node_daemon_mem: %s Mi",
axsys_cpu, axsys_mem, daemon_cpu, daemon_mem)
axsys_node_count = int(self._cluster_config.get_asxys_node_count())
axuser_min_count = str(
int(self._cluster_config.get_min_node_count()) - axsys_node_count)
axuser_max_count = str(
int(self._cluster_config.get_max_node_count()) - axsys_node_count)
autoscaler_scan_interval = str(
self._cluster_config.get_autoscaler_scan_interval())
usr_node_cpu_rsvp = float(daemon_cpu) / EC2_PARAMS[
self._cluster_config.get_axuser_node_type()]["cpu"]
usr_node_mem_rsvp = float(daemon_mem) / EC2_PARAMS[
self._cluster_config.get_axuser_node_type()]["memory"]
scale_down_util_thresh = round(
max(usr_node_cpu_rsvp, usr_node_mem_rsvp), 3) + 0.001
logger.info("Setting node scale down utilization threshold to %s",
scale_down_util_thresh)
self._persist_node_resource_rsvp(daemon_cpu, daemon_mem)
with open("/kubernetes/cluster/version.txt", "r") as f:
cluster_install_version = f.read().strip()
# Prepare autoscaler
asg_manager = AXUserASGManager(self._cluster_name_id, self._region,
self._aws_profile)
asg = asg_manager.get_variable_asg() or asg_manager.get_spot_asg(
) or asg_manager.get_on_demand_asg()
if not asg:
raise AXPlatformException(
"Failed to get autoscaling group for cluster {}".format(
self._cluster_name_id))
asg_name = asg["AutoScalingGroupName"]
if not asg_name:
logger.error("Autoscaling group name not found for %s",
self._cluster_name_id)
raise AXPlatformException("Cannot find cluster autoscaling group")
# Prepare minion-manager.
spot_instances_option = self._cluster_config.get_spot_instances_option(
)
minion_manager_asgs = ""
if spot_instances_option == SpotInstanceOption.ALL_SPOT:
for asg in asg_manager.get_all_asgs():
minion_manager_asgs = minion_manager_asgs + asg[
"AutoScalingGroupName"] + " "
minion_manager_asgs = minion_manager_asgs[:-1]
elif spot_instances_option == SpotInstanceOption.PARTIAL_SPOT:
minion_manager_asgs = asg_manager.get_variable_asg(
)["AutoScalingGroupName"]
return {
"REGISTRY":
self._software_info.registry,
"REGISTRY_SECRETS":
self._software_info.registry_secrets,
"NAMESPACE":
self._software_info.image_namespace,
"VERSION":
self._software_info.image_version,
"AX_CLUSTER_NAME_ID":
self._cluster_name_id,
"AX_AWS_REGION":
self._region,
"AX_AWS_ACCOUNT":
self._account,
"AX_CUSTOMER_ID":
AXCustomerId().get_customer_id(),
"TRUSTED_CIDR":
trusted_cidr_str,
"NEW_KUBE_SALT_SHA1":
os.getenv("NEW_KUBE_SALT_SHA1") or " ",
"NEW_KUBE_SERVER_SHA1":
os.getenv("NEW_KUBE_SERVER_SHA1") or " ",
"AX_KUBE_VERSION":
os.getenv("AX_KUBE_VERSION"),
"AX_CLUSTER_INSTALL_VERSION":
cluster_install_version,
"SANDBOX_ENABLED":
str(self._cluster_config.get_sandbox_flag()),
"ARGO_LOG_BUCKET_NAME":
self._cluster_config.get_support_object_store_name(),
"ASG_MIN":
axuser_min_count,
"ASG_MAX":
axuser_max_count,
"AUTOSCALER_SCAN_INTERVAL":
autoscaler_scan_interval,
"SCALE_DOWN_UTIL_THRESH":
str(scale_down_util_thresh),
"AX_CLUSTER_META_URL_V1":
self._bucket.get_object_url_from_key(
key=self._cluster_config_path.cluster_metadata()),
"ASG_NAME":
asg_name,
"DNS_SERVER_IP":
os.getenv("DNS_SERVER_IP", default_kube_up_env["DNS_SERVER_IP"]),
"AX_ENABLE_SPOT_INSTANCES":
str(spot_instances_option != SpotInstanceOption.NO_SPOT),
"AX_SPOT_INSTANCE_ASGS":
minion_manager_asgs,
}
def _persist_node_resource_rsvp(self, user_node_daemon_cpu,
user_node_daemon_mem):
self._cluster_config.set_user_node_resource_rsvp(
cpu=user_node_daemon_cpu, mem=user_node_daemon_mem)
self._cluster_config.save_config()
def start(self):
"""
Bring up platform using "platform-start.cfg" configuration from manifest directory
:return:
"""
# Generate kube-objects
steps = self._config.steps
self._load_kube_objects_from_steps(steps)
if self._cluster_config.get_cluster_provider() != ClusterProvider.USER:
self._replacing = self._generate_replacing()
else:
self._replacing = self._generate_replacing_for_user_provisioned_cluster(
)
logger.debug("Replacing ENVs: %s", self._replacing)
# TODO: remove component's dependencies to AXOPS_EXT_DNS env (#32)
# At this moment, we MUST separate first step due to the above dependency
assert len(steps) >= 2, "Should have at least 1 step to create axops"
self.create_objects(steps[0])
self.create_objects(steps[1])
self.create_objects(steps[2])
# Prepare axops_eip
if self._cluster_config.get_provider() != "minikube":
self._set_ext_dns()
info_bound = "=======================================================\n"
img_namespace = "Image Namespace: {}\n".format(
self._software_info.image_namespace)
img_version = "Image Version: {}\n".format(
self._software_info.image_version)
start_info = "\n\n{}{}{}{}{}".format(
info_bound, "Platform Up: Bringing up Argo services...\n",
img_namespace, img_version, info_bound)
logger.info(start_info)
# Start rest of the objects
for i in range(3, len(steps)):
self.create_objects(steps[i])
# update application namespace
logger.info("Updating application managers")
for app in Applications(client=self.kubectl).list():
logger.info("--- updating {}".format(app))
a = Application(app, client=self.kubectl)
a.create(force_recreate=True)
logger.info("Done updating application managers")
# Upload version information to target cluster
self._update_version()
logger.info("\n\n%sCluster %s is up. Cluster is available at %s%s\n",
COLOR_GREEN, self._cluster_name_id, self.cluster_dns_name,
COLOR_NORM)
def stop(self):
"""
Bring down platform using "platform-stop.cfg" configuration from manifest directory
:return:
"""
# Generate kube-objects (Does not need to generate replacing during platform down)
# Stop order should be the reverse of start
steps = self._config.steps
steps.reverse()
self._load_kube_objects_from_steps(steps)
info_bound = "=======================================================\n"
stop_info = "\n\n{}{}{}".format(
info_bound, "Platform Down: Shutting down Argo services...\n",
info_bound)
logger.info(stop_info)
# Bring down objects according to steps
for i in range(len(steps)):
object_group = steps[i]
self.delete_objects(object_group)
def stop_monitor(self):
self._monitor.stop()
def create_objects(self, objects):
"""
Start kubernetes objects based on records.
Wait for all of them.
:param objects: AXPlatformObjectGroup
"""
if objects is None or len(objects.object_set) == 0:
return
assert isinstance(objects, AXPlatformObjectGroup)
if not self._should_create_group(
policy=objects.policy,
policy_predicate=objects.policy_predicate,
consistency=objects.consistency):
logger.debug(
"Skipping object group (%s) creation based on policy (%s), policy predicate (%s), consistency (%s)",
objects.name, objects.policy, objects.policy_predicate,
objects.consistency)
return
logger.info("Create step: %s", objects.name)
logger.info("Creating platform objects\n\n%s",
self._generate_object_summary(objects.object_set))
pool = ThreadPool(len(objects.object_set))
async_results = {}
for obj in objects.object_set:
assert isinstance(obj, AXPlatformObject)
name = obj.name
namespace = obj.namespace
async_results[name] = pool.apply_async(
self.start_one, args=(name, ), kwds={"namespace": namespace})
pool.close()
pool.join()
report, failed = self._generate_report(async_results, "Create")
logger.info(report)
if failed:
raise AXPlatformException("Failed to create platform objects.")
def _should_create_group(self, policy, policy_predicate, consistency):
"""
Take AXPlatformObjectGroup policy, predicate and consistency and determine
if this group should be created or not
:param policy:
:param policy_predicate:
:param consistency:
:return:
"""
# Since we are not using consistency, we should always create if not
# explicitly told not to, i.e. if there is a PrivateRegistryOnly
# We are just leaving the interface here that should create or not
# need to be decided by policy, policy_predicate and consistency
if policy_predicate == ObjectGroupPolicyPredicate.PrivateRegistryOnly and \
not self._software_info.registry_is_private():
return False
return True
def delete_objects(self, objects):
"""
Stop kubernetes objects based on records.
Wait for all of them.
:param objects: AXPlatformObjectGroup
"""
assert isinstance(objects, AXPlatformObjectGroup)
if not self._should_delete_group(
policy=objects.policy,
policy_predicate=objects.policy_predicate):
logger.debug(
"Skipping object group (%s) deletion based on policy (%s), policy predicate (%s)",
objects.name, objects.policy, objects.policy_predicate)
return
logger.info("Delete step: %s", objects.name)
logger.info("Deleting platform objects\n\n%s.",
self._generate_object_summary(objects.object_set))
pool = ThreadPool(len(objects.object_set))
async_results = {}
for obj in objects.object_set:
assert isinstance(obj, AXPlatformObject)
name = obj.name
namespace = obj.namespace
async_results[name] = pool.apply_async(
self.stop_one, args=(name, ), kwds={"namespace": namespace})
pool.close()
pool.join()
report, failed = self._generate_report(async_results, "Delete")
logger.info(report)
if failed:
raise AXPlatformException("Failed to create platform objects.")
def _should_delete_group(self, policy, policy_predicate):
"""
Take AXPlatformObjectGroup policy and determine if this group should be deleted or not.
Consistency is not needed
for deletion
:param policy:
:param policy_predicate:
:return:
"""
if policy == ObjectGroupPolicy.CreateMany:
return True
return False
def start_one(self, name, namespace=AXNameSpaces.AXSYS):
time.sleep(
random.randint(0, AXPlatformConfigDefaults.ObjectOperationJitter))
logger.info("Creating %s in namespace %s ...", name, namespace)
start = time.time()
kube_obj = self._kube_objects[name]
# Update them as there are new updates in replacing in platform start
kube_obj.namespace = namespace
kube_obj.replacing = self._replacing
assert isinstance(kube_obj, KubeObject)
result = {
"name": name,
"code": [],
"events": [],
"failed": False,
"duration": ""
}
if kube_obj.healthy():
result["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.OBJ_EXISTS)
]
result["duration"] = str(round(time.time() - start, 2))
return result
# Previous platform start might fail, and might result in some componenets created
# but not healthy (i.e. in CrashLoopBackoff). In this case, we delete the existing
# object and try to create a new one
if kube_obj.exists():
logger.warning(
"Object %s exists but not healthy. Deleting object for idempotency ...",
name)
self.stop_one(name, namespace)
assert not kube_obj.exists(
), "Kubeobject {} already created but is not healthy. Not Expected".format(
name)
monitor_info = kube_obj.get_create_monitor_info()
if monitor_info:
# use monitor
waiters = []
# Create and register waiters for all objects that can be monitored
for m in monitor_info:
wait_info = {
"kind": KubeKindToKubeApiObjKind[m.kube_kind],
"name": m.name,
"validator": m.validator
}
waiter = KubeObjWaiter()
waiters.append((waiter, wait_info))
AXKubeMonitor().wait_for_kube_object(
wait_info, AXPlatformConfigDefaults.ObjCreateWaitTimeout,
waiter)
# Call kubectl create
kube_obj.create()
# Wait on all waiters to retrieve status and events
for waiter, wait_info in waiters:
waiter.wait()
result["events"] += waiter.details
result["code"].append("{:.25s}:{}".format(
wait_info["name"], waiter.result))
if waiter.result == KubeObjStatusCode.OK or waiter.result == KubeObjStatusCode.WARN:
logger.info("Successfully created %s with code %s.",
wait_info["name"], waiter.result)
else:
result["failed"] = True
logger.error(
"Failed to create %s in %s with code %s. Events: %s",
wait_info["name"], namespace, waiter.result,
str(waiter.details))
if not self._debug:
logger.info("Deleting %s due to creation failure",
name)
del_rst = self.stop_one(name, namespace)
result["code"] += del_rst["code"]
result["events"] += del_rst["events"]
result["duration"] = str(round(time.time() - start, 2))
return result
# Poll extra if required (for Petset and Deployments with multiple replicas)
if kube_obj.extra_poll:
logger.info(
"Polling till healthy to make sure rest of components of %s are up and running ...",
name)
create_rst = self._poll_till_healthy(
name=name,
kube_obj=kube_obj,
start_time=start,
poll_interval=AXPlatformConfigDefaults.
ObjCreateExtraPollInterval,
poll_max_retry=AXPlatformConfigDefaults.
ObjCreateExtraPollMaxRetry,
rst=result)
if create_rst["failed"] and not self._debug:
logger.info("Deleting %s due to creation failure", name)
del_rst = self.stop_one(name, namespace)
create_rst["code"] += del_rst["code"]
create_rst["events"] += del_rst["events"]
create_rst["duration"] = str(round(time.time() - start, 2))
return create_rst
# Poll once to confirm all components from this Kubernetes config file exist,
# In case there are objects in this config file cannot be monitored, i.e. svc
# without elb. This is really not expected so we don't delete it
if not kube_obj.healthy():
logger.error(
"Object %s created but is not healthy. This is NOT EXPECTED, please check manually.",
name)
result["code"].append("{:.25s}:{}".format(
name, KubeObjStatusCode.UNHEALTHY))
result["failed"] = True
result["events"].append(
"Object {} created byt is not healthy".format(name))
result["duration"] = str(round(time.time() - start, 2))
if not result["failed"]:
logger.info("Successfully created object %s.", name)
return result
else:
# use polling
kube_obj.create()
create_rst = self._poll_till_healthy(
name=name,
kube_obj=kube_obj,
start_time=start,
poll_interval=AXPlatformConfigDefaults.ObjCreatePollInterval,
poll_max_retry=AXPlatformConfigDefaults.ObjCreatePollMaxRetry,
rst=result)
if create_rst["failed"] and not self._debug:
logger.info("Deleting %s due to creation failure", name)
del_rst = self.stop_one(name, namespace)
create_rst["code"] += del_rst["code"]
create_rst["events"] += del_rst["events"]
create_rst["duration"] = str(round(time.time() - start, 2))
return create_rst
@staticmethod
def _poll_till_healthy(name, kube_obj, start_time, poll_interval,
poll_max_retry, rst):
trail = 0
assert isinstance(kube_obj, KubeObject)
while True:
if not kube_obj.healthy():
trail += 1
if trail > poll_max_retry:
logger.error("Failed to create KubeObject %s", name)
rst["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.UNHEALTHY)
]
rst["events"] += [
"Object {} creation timeout. Not healthy".format(name)
]
rst["failed"] = True
rst["duration"] = str(round(time.time() - start_time, 2))
return rst
else:
logger.info("Successfully created %s.", name)
rst["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.OK)
]
rst["failed"] = False
rst["duration"] = str(round(time.time() - start_time, 2))
return rst
time.sleep(poll_interval)
def stop_one(self, name, namespace=AXNameSpaces.AXSYS):
time.sleep(
random.randint(0, AXPlatformConfigDefaults.ObjectOperationJitter))
logger.info("Deleting %s in namespace %s ...", name, namespace)
start = time.time()
kube_obj = self._kube_objects[name]
kube_obj.namespace = namespace
kube_obj.replacing = self._replacing
assert isinstance(kube_obj, KubeObject)
result = {
"name": name,
"code": [],
"events": [],
"failed": False,
"duration": ""
}
# Don't delete if object does not exist
if not kube_obj.exists():
result["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.DELETED)
]
result["duration"] = str(round(time.time() - start, 2))
return result
monitor_info = kube_obj.get_delete_monitor_info()
if monitor_info:
# use monitor
waiters = []
# Create and register waiters for all objects that can be monitored
for m in monitor_info:
wait_info = {
"kind": KubeKindToKubeApiObjKind[m.kube_kind],
"name": m.name,
"validator": m.validator
}
waiter = KubeObjWaiter()
waiters.append((waiter, wait_info))
AXKubeMonitor().wait_for_kube_object(
wait_info, AXPlatformConfigDefaults.ObjDeleteWaitTimeout,
waiter)
# Call kubectl delete
kube_obj.delete()
# Wait on all waiters to retrieve status and events
for waiter, wait_info in waiters:
waiter.wait()
result["events"] += waiter.details
if waiter.result == KubeObjStatusCode.OK or waiter.result == KubeObjStatusCode.WARN:
result["code"].append("{:.25s}:{}".format(
wait_info["name"], KubeObjStatusCode.DELETED))
logger.info("Successfully deleted %s in %s with code %s.",
wait_info["name"], name, result["code"])
else:
result["failed"] = True
result["code"].append("{:.25s}:{}".format(
wait_info["name"], KubeObjStatusCode.UNKNOWN))
logger.error(
"Failed to delete %s in %s with code %s. Events: %s",
wait_info["name"], name, result["code"],
str(waiter.details))
# Poll once to confirm all components from this Kubenetes config file exist
# In case there are objects in this config file cannot be monitored, i.e. svc without elb
if kube_obj.exists():
logger.error("Object %s deleted but still exists", name)
result["failed"] = True
result["code"].append("{:.25s}:{}".format(
name, KubeObjStatusCode.UNKNOWN))
result["events"].append(
"Object {} deleted but still exists.".format(name))
result["duration"] = str(round(time.time() - start, 2))
logger.info("Successfully deleted %s.", name)
return result
else:
# use polling
kube_obj.delete()
return self._poll_till_not_exists(
name=name,
kube_obj=kube_obj,
start_time=start,
poll_interval=AXPlatformConfigDefaults.ObjDeletePollInterval,
poll_max_retry=AXPlatformConfigDefaults.ObjDeletePollMaxRetry,
rst=result)
@staticmethod
def _poll_till_not_exists(name, kube_obj, start_time, poll_interval,
poll_max_retry, rst):
trail = 0
assert isinstance(kube_obj, KubeObject)
while True:
if kube_obj.exists():
trail += 1
if trail > poll_max_retry:
logger.error("Failed to delete KubeObject %s", name)
rst["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.UNKNOWN)
]
rst["events"] += [
"Object {} deletion timeout. Please manually check remaining pods"
.format(name)
]
rst["failed"] = True
rst["duration"] = str(round(time.time() - start_time, 2))
return rst
else:
logger.info("Successfully deleted %s.", name)
rst["code"] += [
"{:.25s}:{}".format(name, KubeObjStatusCode.DELETED)
]
rst["failed"] = False
rst["duration"] = str(round(time.time() - start_time, 2))
return rst
time.sleep(poll_interval)
def _generate_object_summary(self, objects):
"""
:param objects: list of AXPlatformObject
:return:
"""
report_title = "\n{:25s} | {:110s} | {:20s}\n".format(
"NAME", "MANIFEST", "NAMESPACE")
report_bar = "{}\n".format("-" * 174)
content = ""
for obj in objects:
assert isinstance(obj, AXPlatformObject)
name = obj.name
filename = os.path.join(self._manifest_root, obj.manifest)
namespace = obj.namespace
content += "{:25s} | {:110s} | {:20s}\n".format(
name, filename, namespace)
return report_title + report_bar + content
@staticmethod
def _generate_report(results, operation):
failed = False
report_body = ""
warnings = "\n======= WARNING EVENTS =======\n"
for name in results.keys():
individual_report = "{:25s} | {:110s} | {:20s}\n"
individual_warning = "{name}: {events}\n\n"
try:
result = results[name].get()
if result["failed"]:
failed = True
code = result["code"][0]
for c in result["code"][1:]:
code += " / {}".format(c)
individual_report = individual_report.format(
name, code, result["duration"], 2)
if len(result["events"]) > 0:
warnings += individual_warning.format(
name=name, events=str(result["events"]))
except Exception as e:
failed = True
logger.exception(str(e))
individual_report = individual_report.format(
name, "EXCEPTION", "UNKNOWN")
warnings += individual_warning.format(name=name, events=str(e))
report_body += individual_report
report_head = "\n\nPlatform {} {}. Report:\n".format(
operation, "FAILED" if failed else "SUCCESSFULLY")
report_title = "\n{:25s} | {:110s} | {:20s}\n".format(
"NAME", "STATUS", "TIME (sec)")
report_bar = "{}\n".format("-" * 174)
return "{}{}{}{}{}{}".format(
report_head, report_title, report_bar, report_body, warnings,
"==============================\n"), failed
def _get_eip_from_config_map(self):
try:
cmd = [
"kubectl", "get", "configmap", "cluster-dns-name", "-o",
"yaml", "--namespace", self.kube_axsys_namespace,
"--kubeconfig", self._kube_config
]
out = subprocess.check_output(cmd)
return [yaml.load(out)["data"]["cluster-external-dns-name"]]
except Exception:
logger.error("Failed to get cluster dns name from config map.")
return None
@retry(wait_exponential_multiplier=1000, stop_max_attempt_number=5)
def _get_svc_eip(self, svclabel, namespace):
svc = self.kube_poll.poll_kubernetes_sync(KubeKind.SERVICE, namespace,
svclabel)
assert len(
svc.items) == 1, "Currently services should only have one ingress"
rst = []
for ig in svc.items[0].status.load_balancer.ingress:
if ig.hostname:
rst.append(ig.hostname)
if ig.ip:
rst.append(ig.ip)
return rst
def _set_ext_dns(self):
axops_eip = self._get_eip_from_config_map() or self._get_svc_eip(
svclabel="app=axops", namespace=AXNameSpaces.AXSYS)
if not axops_eip:
logger.error(
"Platform Start Failed: cannot find External IP for AXOPS")
raise AXPlatformException("AXOPS elastic IP does not exist")
self.cluster_dns_name = axops_eip[0]
# Don't change format of this message. Portal parses this line to get cluster IP/DNS.
logger.info(
"\n\n%s>>>>> Starting Argo platform... cluster DNS: %s%s\n",
COLOR_GREEN, self.cluster_dns_name, COLOR_NORM)
self._replacing["AXOPS_EXT_DNS"] = self.cluster_dns_name
def get_cluster_external_dns(self):
if not self.cluster_dns_name:
self._set_ext_dns()
return self.cluster_dns_name
def _set_autoscaling(self):
# Prepare autoscaler
asg_manager = AXUserASGManager(self._cluster_name_id, self._region,
self._aws_profile)
asg = asg_manager.get_variable_asg() or asg_manager.get_spot_asg(
) or asg_manager.get_on_demand_asg()
if not asg:
raise AXPlatformException(
"Failed to get autoscaling group for cluster {}".format(
self._cluster_name_id))
asg_name = asg["AutoScalingGroupName"]
if asg_name is not None:
self._replacing["ASG_NAME"] = asg_name
else:
logger.error("Autoscaling group name not found for %s",
self._cluster_name_id)
raise AXPlatformException("Cannot find cluster autoscaling group")
# TODO (#157) Version should only be uploaded during install and upgrade time
def _update_version(self):
# Software info we get during install / upgrade does not contain ami id
# need to persist it as well
self._software_info.ami_id = self._cluster_config.get_ami_id()
AXVersion(AXCustomerId().get_customer_id(), self._cluster_name_id,
self._aws_profile).update(self._software_info.to_dict())
