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  • WMI tutorial - unified analysis

WMI tutorial - unified analysis

Unified analysis pages are windows into performance analysis and troubleshooting for this newly monitored technology.

They offer the possibility to eliminate further dashboarding or ad-hoc chart building. The screens section will define the details to be displayed on each entity's page as well as charts and lists of other related entities for quick drilldowns.

Unified analysis detailed page

The details page is organized into staticContent and a layout for dynamic content that comprises cards (charts and lists).

staticContent

  • showProblems - Show a panel for any Problems about this entity
  • showProperties - Show the Properties and tags section
  • showTags - Show the tags applied to this entity
  • showGlobalFilter - Show the global filtering bar
  • showAddTag - Show the Add tag button

The layout consists of different cards defined in the chartsCards and entitiesListCards subsections.

Charts card

A chart card is a section of the screen that displays charts. All possible charts are defined in the card, and a number of them can be displayed at the same time on the screen. The others are available from the dropdown list above the chart.

Charts cards rely on metric selectors to correctly display metrics.

Simple chart card example:

yaml
chartsCards:
  - key: "host-cpu-metrics"
    displayName: "Host CPU"
    numberOfVisibleCharts: 2
    charts:
      - displayName: "Idle CPU"
        metrics:
          - metricSelector: "custom.demo.host-observability.host.cpu.time.idle:SplitBy()"
      - displayName: "User CPU"
        metrics:
          - metricSelector: "custom.demo.host-observability.host.cpu.time.user:SplitBy()"

Entity list

An entity list is a list of entities that are somehow related to the currently viewed entity. Additional metrics can be charted in the details of each returned entity and will show as a single value in the list view.

Entity lists rely on entity selectors to correctly list related entities.

Simple entity list example:

yaml
entitiesListCards:
  - key: "nic-list"
    displayName: "Network Interfaces"
    entitySelectorTemplate: "type(wmi:generic_network_device),fromRelationships.runsOn($(entityConditions)),wmi_network_type(Interface)"
    displayCharts: false
    displayIcons: true
    enableDetailsExpandability: true

Note: $(entityConditions) is a function that automatically maps to the currently viewed entity. This is mandatory for entity selectors used in the extension.

The properties card

The propertiesCard of an entity can also be modified to include additional properties or hide unnecessary ones. Properties are extracted from entity attributes (when type is ATTRIBUTE) or through an entity selector (when type is RELATION).

Define unified pages for your extension

  1. Add the screens section to your extension.yaml using the template below.
  2. Customize the details page settings for both the Generic Host and the Generic Network Device entity types.
  3. Use charts cards to display all the metrics of each entity.
  4. Add entity list cards so that a Generic Host can list out all Network Adapters and Interfaces running on it.
  5. Add a relation based property so that a Generic Network Device displays what Generic Host it runs on.
  6. Package and upload a new version of your extension.
  7. Validate your screens are showing up as expected.
yaml
screens:
  - entityType: wmi:generic_host
    detailsSettings:
      staticContent:
        showProblems: true
        showProperties: true
        showTags: true
        showGlobalFilter: true
        showAddTag: true
      layout:
        autoGenerate: false
        cards:
          - type: "CHART_GROUP"
            key: "wmi_host-chart-metrics"
          - type: "ENTITIES_LIST"
            key: "wmi_host-list-network_interfaces"
          - type: "ENTITIES_LIST"
            key: "wmi_host-list-network_adapters"
    chartsCards:
      - key: "wmi_host-chart-metrics"
        displayName: "Generic Host Metrics"
        numberOfVisibleCharts: 2
        charts:
          - displayName: "CPU Usage Breakdown"
            visualization:
              themeColor: BLUE
              seriesType: AREA
            metrics:
              - metricSelector: "custom.demo.host-observability.host.cpu.time.idle:SplitBy()"
              - metricSelector: "custom.demo.host-observability.host.cpu.time.user:SplitBy()"
              - metricSelector: "custom.demo.host-observability.host.cpu.time.processor:SplitBy()"
          - displayName: "CPU User"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.host.cpu.time.user:SplitBy()"
          - displayName: "CPU Idle"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.host.cpu.time.idle:SplitBy()"
          - displayName: "CPU Used"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.host.cpu.time.processor:SplitBy()"
    entitiesListCards:
      - key: "wmi_host-list-network_interfaces"
        displayName: "Network Interfaces"
        entitySelectorTemplate: "type(wmi:generic_network_device),fromRelationships.runsOn($(entityConditions)),wmi_network_type(Interface)"
        pageSize: 5
        displayCharts: false
        displayIcons: true
        enableDetailsExpandability: true
        numberOfVisibleCharts: 1
        charts:
          - displayName: "Traffic"
            visualization:
              themeColor: BLUE
              seriesType: AREA
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"
              - metricSelector: "custom.demo.host-observability.network.bytes.received.persec:SplitBy()"
      - key: "wmi_host-list-network_adapters"
        displayName: "Network Adapters"
        entitySelectorTemplate: "type(wmi:generic_network_device),fromRelationships.runsOn($(entityConditions)),wmi_network_type(Adapter)"
        pageSize: 5
        displayCharts: false
        displayIcons: true
        enableDetailsExpandability: true
        numberOfVisibleCharts: 1
        charts:
          - displayName: "Traffic"
            visualization:
              themeColor: BLUE
              seriesType: AREA
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"
              - metricSelector: "custom.demo.host-observability.network.bytes.received.persec:SplitBy()"
  - entityType: wmi:generic_network_device
    propertiesCard:
      properties:
        - type: ATTRIBUTE
          attribute:
            key: wmi_network_name
            displayName: Name
        - type: ATTRIBUTE
          attribute:
            key: wmi_network_type
            displayName: Type
        - type: RELATION
          relation:
            entitySelectorTemplate: type(wmi:generic_host),toRelationships.runsOn($(entityConditions))
            displayName: Host
    detailsSettings:
      staticContent:
        showProblems: true
        showProperties: true
        showTags: true
        showGlobalFilter: true
        showAddTag: true
      layout:
        autoGenerate: false
        cards:
        - type: "CHART_GROUP"
          key: "wmi_network_device-chart-traffic"
    chartsCards:
      - key: "wmi_network_device-chart-traffic"
        displayName: "Traffic"
        numberOfVisibleCharts: 2
        charts:
          - displayName: "Traffic breakdown"
            visualization:
              themeColor: BLUE
              seriesType: AREA
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.persec:SplitBy()"
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"
              - metricSelector: "custom.demo.host-observability.network.bytes.received.persec:SplitBy()"
          - displayName: "Bytes sent"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"
          - displayName: "Bytes received"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"
          - displayName: "Bytes"
            visualization:
              themeColor: BLUE
              seriesType: LINE
            metrics:
              - metricSelector: "custom.demo.host-observability.network.bytes.sent.persec:SplitBy()"

Results

Your customized unified analysis pages are displayed and populated as expected.

result