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grafanalib.memory.usage.py
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grafanalib.memory.usage.py
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from grafanalib.core import *
def memory_graph(target, time_from=None):
if time_from is not None:
timeFrom = "%s" % (time_from,)
else:
timeFrom = None
return Graph(
title='Memory usage',
dataSource="Prometheus (Pergamon)",
timeFrom=timeFrom,
stack=True,
tooltip=Tooltip(valueType=INDIVIDUAL),
targets=[
Target(
expr='node_memory_MemTotal_bytes{instance="%s"}' % (target),
legendFormat="Total memory",
refId='A',
),
Target(
expr='node_memory_MemTotal_bytes{instance="%s"} - \
node_memory_MemAvailable_bytes{instance="%s"}' % (target, target),
legendFormat="Used memory",
refId='B',
),
Target(
expr='node_memory_Cached_bytes{instance="%s"}' % (target),
legendFormat="File cache",
refId='C',
),
Target(
expr='node_memory_SwapTotal_bytes{instance="%s"} - \
node_memory_SwapFree_bytes{instance="%s"}' % (target, target),
legendFormat="Used swap",
refId='D',
),
],
seriesOverrides = [
{"alias": "Total memory", "stack": "false"},
{"alias": "Used swap", "stack": "false", "fill": "10"},
],
yAxes=[
YAxis(format='bytes'),
YAxis(format=SHORT_FORMAT),
],
legend=Legend(min=True, max=True, avg=True, current=True),
)
dashboard = Dashboard(
title="Memory usage auto-generated",
templating=Templating(list=[
Template(
name="host",
label="",
query='node_uname_info{instance="$target"}',
regex='/nodename="([^"]*)"/',
dataSource='Prometheus (Pergamon)',
),
Template(
name="target",
label="",
query='node_uname_info',
regex='/instance="([^"]*)"/',
dataSource='Prometheus (Pergamon)',
),
]),
rows=[
Row(
title = 'Memory',
panels=[
memory_graph('$target'),
memory_graph('$target', "1y"),
],
),
],).auto_panel_ids()

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