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import { EmbeddedScene, PanelBuilders, SceneAppPage, SceneAppPageLike, SceneControlsSpacer, SceneFlexItem, SceneFlexLayout, SceneQueryRunner, SceneRefreshPicker, SceneRouteMatch, SceneTimePicker, VariableValueSelectors } from "@grafana/scenes"; | ||
import { ROUTES } from "../../../../constants"; | ||
import { prefixRoute } from "utils/utils.routing"; | ||
import { usePluginProps } from "utils/utils.plugin"; | ||
import { createTopLevelVariables, createTimeRange } from "../../../../common/variableHelpers"; | ||
import { LabelFilters } from "common/queryHelpers"; | ||
import { getPodsScene } from "pages/Workloads/tabs/Pods/Pods"; | ||
import { Metrics } from "metrics/metrics"; | ||
import { LegendDisplayMode } from "@grafana/schema"; | ||
|
||
function getScene(node: string) { | ||
return new EmbeddedScene({ | ||
controls: [ | ||
new VariableValueSelectors({}), | ||
new SceneControlsSpacer(), | ||
new SceneTimePicker({ isOnCanvas: true }), | ||
new SceneRefreshPicker({ | ||
intervals: ['5s', '1m', '1h'], | ||
isOnCanvas: true, | ||
}), | ||
], | ||
body: new SceneFlexLayout({ | ||
direction: 'column', | ||
children: [ | ||
new SceneFlexLayout({ | ||
direction: 'row', | ||
height: 300, | ||
children: [ | ||
new SceneFlexItem({ | ||
body: getCPUPanel(node) | ||
}), | ||
new SceneFlexItem({ | ||
body: getMemoryPanel(node) | ||
}) | ||
] | ||
}), | ||
new SceneFlexLayout({ | ||
direction: 'row', | ||
children: [ | ||
new SceneFlexItem({ | ||
body: getPods(node) | ||
}) | ||
] | ||
}), | ||
] | ||
}), | ||
}) | ||
} | ||
|
||
function getCPUPanel(node: string) { | ||
return PanelBuilders.timeseries() | ||
.setTitle('CPU') | ||
.setData(new SceneQueryRunner({ | ||
datasource: { | ||
uid: '$datasource', | ||
type: 'prometheus', | ||
}, | ||
queries: [ | ||
{ | ||
refId: 'cpu_total', | ||
expr: ` | ||
sum( | ||
${Metrics.machineCpuCores.name}{cluster=~"$cluster",instance=~"${node}.*"} | ||
) by (cluster)`, | ||
legendFormat: 'Total' | ||
}, | ||
{ | ||
refId: 'cpu_usage', | ||
// Calculate CPU usage in cores per node and sum it up to get the total usage across all nodes | ||
expr: ` | ||
( | ||
sum ( | ||
rate( | ||
${Metrics.nodeCpuSecondsTotal.name}{ | ||
${Metrics.nodeCpuSecondsTotal.labels.mode}!="idle", | ||
instance=~"${node}.*", | ||
cluster="$cluster" | ||
}[$__rate_interval] | ||
) | ||
) by(${Metrics.nodeCpuSecondsTotal.labels.instance}, cluster) | ||
/ | ||
on (${Metrics.nodeCpuSecondsTotal.labels.instance}, cluster) group_left sum ( | ||
( | ||
rate( | ||
${Metrics.nodeCpuSecondsTotal.name}{ | ||
cluster="$cluster", | ||
instance=~"${node}.*", | ||
}[$__rate_interval] | ||
) | ||
) | ||
) by (${Metrics.nodeCpuSecondsTotal.labels.instance}, cluster) | ||
) | ||
* count( | ||
count( | ||
node_cpu_seconds_total{ | ||
cluster="$cluster", | ||
instance=~"${node}.*", | ||
} | ||
) by (cpu, cluster, instance) | ||
) by (cluster, instance) | ||
`, | ||
legendFormat: 'Usage' | ||
}, | ||
{ | ||
refId: 'cpu_requested', | ||
expr: ` | ||
sum( | ||
kube_node_info{cluster=~"$cluster",internal_ip=~"${node}.*"} * on(node) group_right() | ||
${Metrics.kubePodContainerResourceRequests.name}{ | ||
resource="cpu", | ||
cluster=~"$cluster", | ||
} | ||
) by (cluster)`, | ||
legendFormat: 'Requested' | ||
} | ||
], | ||
})) | ||
.setUnit('cores') | ||
.setOption('legend', { displayMode: LegendDisplayMode.Table }) | ||
.setOverrides((builder) => { | ||
builder.matchFieldsByQuery('cpu_total') | ||
.overrideCustomFieldConfig('lineStyle', { fill: 'dash', dash: [5, 5] }) | ||
.overrideCustomFieldConfig('fillOpacity', 5) | ||
builder.matchFieldsByQuery('cpu_requested') | ||
.overrideCustomFieldConfig('lineStyle', { fill: 'dash', dash: [20, 5] }) | ||
.overrideCustomFieldConfig('fillOpacity', 5) | ||
}) | ||
.build() | ||
} | ||
|
||
function getMemoryPanel(node: string) { | ||
return PanelBuilders.timeseries() | ||
.setTitle('Memory') | ||
.setData(new SceneQueryRunner({ | ||
datasource: { | ||
uid: '$datasource', | ||
type: 'prometheus', | ||
}, | ||
queries: [ | ||
{ | ||
refId: 'memory_total', | ||
expr: ` | ||
sum( | ||
${Metrics.nodeMemoryMemTotalBytes.name}{cluster=~"$cluster", instance=~"${node}.*"} | ||
) by (cluster)`, | ||
legendFormat: 'Total [{{cluster}}]' | ||
}, | ||
{ | ||
refId: 'memory_usage', | ||
expr: ` | ||
sum( | ||
${Metrics.nodeMemoryMemTotalBytes.name}{cluster=~"$cluster", instance=~"${node}.*"} | ||
- | ||
${Metrics.nodeMemoryMemAvailableBytes.name}{cluster=~"$cluster", instance=~"${node}.*"} | ||
) by (cluster)`, | ||
legendFormat: 'Used [{{cluster}}]' | ||
}, | ||
{ | ||
refId: 'memory_requested', | ||
expr: ` | ||
sum( | ||
kube_node_info{cluster=~"$cluster",internal_ip=~"${node}.*"} * on(node) group_right() | ||
${Metrics.kubePodContainerResourceRequests.name}{ | ||
resource="memory", | ||
cluster=~"$cluster", | ||
} | ||
) by (cluster)`, | ||
legendFormat: 'Requested [{{cluster}}]' | ||
} | ||
], | ||
})) | ||
.setUnit('bytes') | ||
.setOption('legend', { displayMode: LegendDisplayMode.Table }) | ||
.setOverrides((builder) => { | ||
builder.matchFieldsByQuery('memory_total') | ||
.overrideCustomFieldConfig('lineStyle', { fill: 'dash', dash: [5, 5] }) | ||
.overrideCustomFieldConfig('fillOpacity', 5) | ||
builder.matchFieldsByQuery('memory_requested') | ||
.overrideCustomFieldConfig('lineStyle', { fill: 'dash', dash: [20, 5] }) | ||
.overrideCustomFieldConfig('fillOpacity', 5) | ||
}) | ||
.build() | ||
} | ||
|
||
function getPods(node: string) { | ||
const staticLabelFilters: LabelFilters = [ | ||
{ | ||
label: 'host_ip', | ||
op: '=~', | ||
value: `${node}.*` | ||
}, | ||
] | ||
|
||
return getPodsScene(staticLabelFilters, false, false) | ||
} | ||
|
||
export function NodePage(routeMatch: SceneRouteMatch<any>, parent: SceneAppPageLike) { | ||
|
||
const props = usePluginProps(); | ||
|
||
return new SceneAppPage({ | ||
title: `Node - ${routeMatch.params.name}`, | ||
titleIcon: 'dashboard', | ||
$variables: createTopLevelVariables({ | ||
datasource: props?.meta.jsonData?.datasource || 'prometheus' | ||
}), | ||
$timeRange: createTimeRange(), | ||
url: prefixRoute(`${ROUTES.Clusters}/nodes/${routeMatch.params.name}`), | ||
getScene: () => getScene(routeMatch.params.name), | ||
getParentPage: () => parent, | ||
}) | ||
} |
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