def test_get_kvm_pods_stats(self):
pod1 = self.make_pod(
cpu=10, mem=100, cpu_over_commit=2, mem_over_commit=3
)
pod2 = self.make_pod(
cpu=20, mem=200, cpu_over_commit=3, mem_over_commit=2
)
total_cores = pod1.cores + pod2.cores
total_memory = pod1.memory + pod2.memory
over_cores = (
pod1.cores * pod1.cpu_over_commit_ratio
+ pod2.cores * pod2.cpu_over_commit_ratio
)
over_memory = (
pod1.memory * pod1.memory_over_commit_ratio
+ pod2.memory * pod2.memory_over_commit_ratio
)
stats = get_kvm_pods_stats()
compare = {
"kvm_pods": 2,
"kvm_machines": 0,
"kvm_available_resources": {
"cores": total_cores,
"memory": total_memory,
"over_cores": over_cores,
"over_memory": over_memory,
"storage": 0,
},
"kvm_utilized_resources": {"cores": 0, "memory": 0, "storage": 0},
}
self.assertEqual(compare, stats)
def get_stats_for_prometheus():
registry = prom_cli.CollectorRegistry()
stats = json.loads(get_maas_stats())
architectures = get_machines_by_architecture()
pods = get_kvm_pods_stats()
# Gather counter for machines per status
counter = prom_cli.Gauge("machine_status",
"Number of machines per status", ["status"],
registry=registry)
for status, machines in stats['machine_status'].items():
counter.labels(status).set(machines)
# Gather counter for number of nodes (controllers/machine/devices)
counter = prom_cli.Gauge(
"nodes",
"Number of nodes per type (e.g. racks, machines, etc).", ["type"],
registry=registry)
for ctype, number in stats['controllers'].items():
counter.labels(ctype).set(number)
for ctype, number in stats['nodes'].items():
counter.labels(ctype).set(number)
# Gather counter for networks
counter = prom_cli.Gauge("networks",
"General statistics for subnets.", ["type"],
registry=registry)
for stype, number in stats['network_stats'].items():
counter.labels(stype).set(number)
# Gather overall amount of machine resources
counter = prom_cli.Gauge("machine_resources",
"Amount of combined resources for all machines",
["resource"],
registry=registry)
for resource, value in stats['machine_stats'].items():
counter.labels(resource).set(value)
# Gather all stats for pods
counter = prom_cli.Gauge("kvm_pods",
"General stats for KVM pods", ["type"],
registry=registry)
for resource, value in pods.items():
if isinstance(value, dict):
for r, v in value.items():
counter.labels("%s_%s" % (resource, r)).set(v)
else:
counter.labels(resource).set(value)
# Gather statistics for architectures
if len(architectures.keys()) > 0:
counter = prom_cli.Gauge("machine_arches",
"Number of machines per architecture.",
["arches"],
registry=registry)
for arch, machines in architectures.items():
counter.labels(arch).set(machines)
return registry
def update_prometheus_stats(metrics: PrometheusMetrics):
"""Update metrics in a PrometheusMetrics based on database values."""
stats = json.loads(get_maas_stats())
architectures = get_machines_by_architecture()
pods = get_kvm_pods_stats()
# Gather counter for machines per status
for status, machines in stats['machine_status'].items():
metrics.update('machine_status',
'set',
value=machines,
labels={'status': status})
# Gather counter for number of nodes (controllers/machine/devices)
for ctype, number in stats['controllers'].items():
metrics.update('nodes', 'set', value=number, labels={'type': ctype})
for ctype, number in stats['nodes'].items():
metrics.update('nodes', 'set', value=number, labels={'type': ctype})
# Gather counter for networks
for stype, number in stats['network_stats'].items():
metrics.update('networks', 'set', value=number, labels={'type': stype})
# Gather overall amount of machine resources
for resource, value in stats['machine_stats'].items():
metrics.update('machine_resources',
'set',
value=value,
labels={'resource': resource})
# Gather all stats for pods
for resource, value in pods.items():
if isinstance(value, dict):
for r, v in value.items():
metrics.update('kvm_pods',
'set',
value=v,
labels={'type': '{}_{}'.format(resource, r)})
else:
metrics.update('kvm_pods',
'set',
value=value,
labels={'type': resource})
# Gather statistics for architectures
if len(architectures.keys()) > 0:
for arch, machines in architectures.items():
metrics.update('machine_arches',
'set',
value=machines,
labels={'arches': arch})
return metrics
def test_get_kvm_pods_stats_no_pod(self):
self.assertEqual(
get_kvm_pods_stats(), {
'kvm_pods': 0,
'kvm_machines': 0,
'kvm_available_resources': {
'cores': 0,
'memory': 0,
'storage': 0,
'over_cores': 0,
'over_memory': 0
},
'kvm_utilized_resources': {
'cores': 0,
'memory': 0,
'storage': 0
}
})
def test_get_kvm_pods_stats_no_pod(self):
self.assertEqual(
get_kvm_pods_stats(),
{
"kvm_pods": 0,
"kvm_machines": 0,
"kvm_available_resources": {
"cores": 0,
"memory": 0,
"storage": 0,
"over_cores": 0,
"over_memory": 0,
},
"kvm_utilized_resources": {
"cores": 0,
"memory": 0,
"storage": 0,
},
},
)
def update_prometheus_stats(metrics: PrometheusMetrics):
"""Update metrics in a PrometheusMetrics based on database values."""
stats = json.loads(get_maas_stats())
architectures = get_machines_by_architecture()
pods = get_kvm_pods_stats()
# Gather counter for machines per status
for status, machines in stats["machine_status"].items():
metrics.update("maas_machines",
"set",
value=machines,
labels={"status": status})
# Gather counter for number of nodes (controllers/machine/devices)
for ctype, number in stats["controllers"].items():
metrics.update("maas_nodes",
"set",
value=number,
labels={"type": ctype})
for ctype, number in stats["nodes"].items():
metrics.update("maas_nodes",
"set",
value=number,
labels={"type": ctype})
# Gather counter for networks
for stype, number in stats["network_stats"].items():
metrics.update("maas_net_{}".format(stype), "set", value=number)
# Gather overall amount of machine resources
for resource, value in stats["machine_stats"].items():
metrics.update("maas_machines_{}".format(resource), "set", value=value)
# Gather all stats for pods
metrics.update("maas_kvm_pods", "set", value=pods["kvm_pods"])
metrics.update("maas_kvm_machines", "set", value=pods["kvm_machines"])
for metric in ("cores", "memory", "storage"):
metrics.update(
"maas_kvm_{}".format(metric),
"set",
value=pods["kvm_available_resources"][metric],
labels={"status": "available"},
)
metrics.update(
"maas_kvm_{}".format(metric),
"set",
value=pods["kvm_utilized_resources"][metric],
labels={"status": "used"},
)
metrics.update(
"maas_kvm_overcommit_cores",
"set",
value=pods["kvm_available_resources"]["over_cores"],
)
metrics.update(
"maas_kvm_overcommit_memory",
"set",
value=pods["kvm_available_resources"]["over_memory"],
)
# Gather statistics for architectures
if len(architectures.keys()) > 0:
for arch, machines in architectures.items():
metrics.update(
"maas_machine_arches",
"set",
value=machines,
labels={"arches": arch},
)
# Update metrics for subnets
for cidr, stats in get_subnets_utilisation_stats().items():
for status in ("available", "unavailable"):
metrics.update(
"maas_net_subnet_ip_count",
"set",
value=stats[status],
labels={
"cidr": cidr,
"status": status
},
)
metrics.update(
"maas_net_subnet_ip_static",
"set",
value=stats["static"],
labels={"cidr": cidr},
)
for addr_type in ("dynamic", "reserved"):
metric_name = "maas_net_subnet_ip_{}".format(addr_type)
for status in ("available", "used"):
metrics.update(
metric_name,
"set",
value=stats["{}_{}".format(addr_type, status)],
labels={
"cidr": cidr,
"status": status
},
)
return metrics
def update_prometheus_stats(metrics: PrometheusMetrics):
"""Update metrics in a PrometheusMetrics based on database values."""
stats = json.loads(get_maas_stats())
architectures = get_machines_by_architecture()
pods = get_kvm_pods_stats()
# Gather counter for machines per status
for status, machines in stats['machine_status'].items():
metrics.update(
'maas_machines', 'set', value=machines,
labels={'status': status})
# Gather counter for number of nodes (controllers/machine/devices)
for ctype, number in stats['controllers'].items():
metrics.update(
'maas_nodes', 'set', value=number, labels={'type': ctype})
for ctype, number in stats['nodes'].items():
metrics.update(
'maas_nodes', 'set', value=number, labels={'type': ctype})
# Gather counter for networks
for stype, number in stats['network_stats'].items():
metrics.update('maas_net_{}'.format(stype), 'set', value=number)
# Gather overall amount of machine resources
for resource, value in stats['machine_stats'].items():
metrics.update('maas_machines_{}'.format(resource), 'set', value=value)
# Gather all stats for pods
metrics.update('maas_kvm_pods', 'set', value=pods['kvm_pods'])
metrics.update('maas_kvm_machines', 'set', value=pods['kvm_machines'])
for metric in ('cores', 'memory', 'storage'):
metrics.update(
'maas_kvm_{}'.format(metric), 'set',
value=pods['kvm_available_resources'][metric],
labels={'status': 'available'})
metrics.update(
'maas_kvm_{}'.format(metric), 'set',
value=pods['kvm_utilized_resources'][metric],
labels={'status': 'used'})
metrics.update(
'maas_kvm_overcommit_cores', 'set',
value=pods['kvm_available_resources']['over_cores'])
metrics.update(
'maas_kvm_overcommit_memory', 'set',
value=pods['kvm_available_resources']['over_memory'])
# Gather statistics for architectures
if len(architectures.keys()) > 0:
for arch, machines in architectures.items():
metrics.update(
'maas_machine_arches', 'set', value=machines,
labels={'arches': arch})
# Update metrics for subnets
for cidr, stats in get_subnets_utilisation_stats().items():
for status in ('available', 'unavailable'):
metrics.update(
'maas_net_subnet_ip_count', 'set',
value=stats[status],
labels={'cidr': cidr, 'status': status})
metrics.update(
'maas_net_subnet_ip_static', 'set',
value=stats['static'], labels={'cidr': cidr})
for addr_type in ('dynamic', 'reserved'):
metric_name = 'maas_net_subnet_ip_{}'.format(addr_type)
for status in ('available', 'used'):
metrics.update(
metric_name, 'set',
value=stats['{}_{}'.format(addr_type, status)],
labels={'cidr': cidr, 'status': status})
return metrics
