def _get_namespace_limits(kube, namespace):
ns = kubelib.Namespace(kube).get(namespace)
# print(repr(ns))
if hasattr(ns.status, "phase"):
if ns.status.phase == 'Terminating':
LOG.info('Skipping %s (phase is %s)', ns.metadata.name,
ns.status.phase)
return []
else:
LOG.error('Failed to retrieve limits from namespace %s', namespace)
return []
return kubelib.LimitRange(kube).get_list()
def see_limits():
"""
View all current namespace limits.
Usage:
see_limits [--context=<context>] [--namespace=<namespace>]
Options:
--context=<context> kube context [default: None]
--namespace=<namespace> kube namespace [default: None]
"""
args = docopt.docopt(see_limits.__doc__)
context = args['--context']
exit_code = 0
errors = []
if context == "None":
LOG.debug('Defaulting to the current kubectl context')
context = sh.kubectl.config('current-context').stdout.strip().decode('ascii')
namespace_name = args['--namespace']
tv = TableView()
namespace = TableView('Namespace', center=True, link="namespace")
pod_name = TableView('Pod Name', center=True, link="pod.name")
container_name = TableView('Container Name', center=True, link="container.name")
pod = TableView('Pod', center=True)
pod_cpu = TableView('CPU', center=True)
pod_cpu_min = TableView('min', center=True, link="pod.min.cpu")
pod_cpu_max = TableView('max', center=True, link="pod.max.cpu")
pod_cpu.add_columns([pod_cpu_min, pod_cpu_max])
pod_mem = TableView('Memory', center=True)
pod_mem_min = TableView('min', center=True, link="pod.min.memory")
pod_mem_max = TableView('max', center=True, link="pod.max.memory")
pod_mem.add_columns([pod_mem_min, pod_mem_max])
pod.add_columns([pod_cpu, pod_mem])
container = TableView('Container', center=True)
container_restart = TableView('Restarts', center=True, link="container.restart")
container_last = TableView('LastState', center=True, link="container.laststate")
container_cpu = TableView('CPU', center=True)
container_cpu_min = TableView('min', center=True, link="container.min.cpu")
container_cpu_max = TableView('max', center=True, link="container.max.cpu")
container_cpu.add_columns([container_cpu_min, container_cpu_max])
container_mem = TableView('Memory', center=True)
container_mem_min = TableView('min', center=True, link="container.min.memory")
container_mem_max = TableView('max', center=True, link="container.max.memory")
container_mem.add_columns([container_mem_min, container_mem_max])
container_default = TableView('Default', center=True)
container_default_cpu = TableView('cpu', center=True, link="container.default.cpu")
container_default_mem = TableView('mem', center=True, link="container.default.memory")
container_default.add_columns([
container_default_cpu, container_default_mem
])
container_defaultreq = TableView('Def Request', center=True)
container_defaultreq_cpu = TableView('cpu', center=True, link="container.defaultRequest.cpu")
container_defaultreq_mem = TableView('mem', center=True, link="container.defaultRequest.memory")
container_defaultreq.add_columns([
container_defaultreq_cpu, container_defaultreq_mem
])
container_maxratio = TableView('Max Ratio', center=True)
container_maxratio_cpu = TableView('cpu', center=True, link="container.maxLimitRequestRatio.cpu")
container_maxratio.add_column(container_maxratio_cpu)
container.add_columns([
container_restart, container_last, container_cpu, container_mem,
container_default, container_defaultreq, container_maxratio
])
pvc = TableView('PVC', center=True)
pvc_min = TableView('min', center=True, link="pvc.min.storage")
pvc_max = TableView('max', center=True, link="pvc.max.storage")
pvc.add_columns([pvc_min, pvc_max])
tv.add_columns([namespace, pod_name, container_name, pod, container, pvc])
if namespace_name in [None, "None"]:
# all
namespaces = []
kube = kubelib.KubeConfig(context=context, namespace="")
namespace_objects = kubelib.Namespace(kube).get_list()
for ns in namespace_objects:
namespaces.append(ns.metadata.name)
else:
namespaces = [namespace_name]
for namespace_name in namespaces:
kube = kubelib.KubeConfig(context=context, namespace=namespace_name)
limits_list = _get_namespace_limits(kube, namespace_name)
namespace_limit = {
'namespace': namespace_name,
'pod.name': '',
'container.name': ''
}
for limits in limits_list:
# can there be multiple namespace limits?
for limit in limits.spec.limits:
if limit.type == "Pod":
namespace_limit['pod.min.cpu'] = limit.min.cpu
namespace_limit['pod.min.memory'] = limit.min.memory
namespace_limit['pod.max.cpu'] = limit.max.cpu
namespace_limit['pod.max.memory'] = limit.max.memory
elif limit.type == "Container":
try:
namespace_limit['container.min.cpu'] = limit.min.cpu
except AttributeError:
pass
try:
namespace_limit['container.min.memory'] = limit.min.memory
except AttributeError:
pass
try:
namespace_limit['container.max.cpu'] = limit.max.cpu
except AttributeError:
pass
try:
namespace_limit['container.max.memory'] = limit.max.memory
except AttributeError:
pass
# default
try:
namespace_limit['container.default.cpu'] = limit.default.cpu
except AttributeError:
pass
try:
namespace_limit['container.default.memory'] = limit.default.memory
except AttributeError:
pass
# defrequest
namespace_limit['container.defaultRequest.cpu'] = limit.defaultRequest.cpu
try:
namespace_limit['container.defaultRequest.memory'] = limit.defaultRequest.memory
except AttributeError:
pass
# maxratio
try:
namespace_limit['container.maxLimitRequestRatio.cpu'] = limit.maxLimitRequestRatio.cpu
except AttributeError:
pass
elif limit.type == "PersistentVolumeClaim":
namespace_limit['pvc.min.storage'] = limit.min.storage
namespace_limit['pvc.max.storage'] = limit.max.storage
data = [
namespace_limit
]
# gather pod limits
pods = kubelib.Pod(kube).get_list()
for pod in pods:
pod_name = pod.metadata.name
cstatus = {}
for cstatus_dict in getattr(pod.status, "containerStatuses", []):
cstatus[cstatus_dict['name']] = cstatus_dict
for container in pod.spec.containers:
row = {
'namespace': namespace_name,
'pod.name': pod_name,
'container.name': container.name,
'container.restart': cstatus.get(container.name, {}).get("restartCount", '?'),
'container.laststate': cstatus.get(container.name, {}).get("lastState", {}).get('terminated', {}).get('reason', ''),
'container.min.cpu': container.get(
"resources", {}
).get(
'requests', {}
).get(
'cpu',
namespace_limit.get('container.defaultRequest.cpu')
),
'container.min.memory': container.get(
"resources", {}
).get(
'requests', {}
).get(
'memory',
namespace_limit.get('container.defaultRequest.memory')
),
'container.max.cpu': container.get(
"resources", {}
).get(
'limits', {}
).get(
'cpu',
namespace_limit.get('container.default.cpu')
),
'container.max.memory': container.get(
"resources", {}
).get(
'limits', {}
).get(
'memory', namespace_limit.get('container.default.memory')
),
}
if namespace_limit.get('container.min.memory') is None:
# unlimited
pass
elif less_than(
row['container.min.memory'],
namespace_limit.get('container.min.memory')
):
msg = ('%s Pod %s min memory %s is below namespace minimum %s' % (
namespace_name,
pod_name,
row['container.min.memory'],
namespace_limit.get('container.min.memory')
))
print(msg)
errors.append(msg)
exit_code = 1
if namespace_limit.get('container.max.memory') is None:
# unlimited
pass
elif greater_than(
row['container.max.memory'],
namespace_limit.get('container.max.memory')
):
msg = ('%s Pod %s max memory %s is above namespace maximum %s' % (
namespace_name,
pod_name,
row['container.max.memory'],
namespace_limit.get('container.max.memory')
))
print(msg)
errors.append(msg)
exit_code = 1
if namespace_limit.get('container.min.cpu') is None:
# unlimited
pass
elif less_than(
row['container.min.cpu'],
namespace_limit.get('container.min.cpu')
):
msg = ('%s Pod %s min cpu %s is below namespace minimum %s' % (
namespace_name,
pod_name,
row['container.min.cpu'],
namespace_limit.get('container.min.cpu')
))
print(msg)
errors.append(msg)
exit_code = 1
if namespace_limit.get('container.max.cpu') is None:
# unlimited
pass
elif greater_than(
row['container.max.cpu'],
namespace_limit.get('container.max.cpu')
):
msg = ('%s Pod %s max cpu %s is above namespace maximum %s' % (
namespace_name,
pod_name,
row['container.max.cpu'],
namespace_limit.get('container.max.cpu')
))
print(msg)
errors.append(msg)
exit_code = 1
# colorama.Fore.RED + "!! " + str + " !!" + colorama.Style.RESET_ALL)
data.append(row)
tv.set_data(data)
print(tv)
if errors:
for err in errors:
print(err)
sys.exit(exit_code)
'formatter': 'detailed'
}
},
'loggers': {
'kubelib': {
'level': 'DEBUG',
'propagate': True
}
},
'root': {
'level': 'DEBUG',
'handlers': ['console']
}
})
LOG = logging.getLogger(__name__)
#k = kubelib.Nameubectl()
#print repr(k.base_resources)
#print repr(k.get_pod("www-controller-hi66l"))
#print repr(k.get_namespaces())
#print ("\n\n")
#print repr(k.create_namespace("jkane-test"))
#print ("\n\n")
#print repr(k.delete_namespace("jkane-test"))
#print ("\n\n")
for ns in kubelib.Namespace(kubelib.KubeConfig()).get_list():
print(ns.metadata.name)