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Foglight for Container Management 2.0 - User Guide

Table of Contents

Understanding Foglight for Container Management

About Foglight for Container Management Architecture Sizing Your Monitored Environment

Foglight Management Server Requirements Kubernetes Agent Requirements Docker Swarm Agent Requirements

Getting Started

Kubernetes Agent Docker Swarm Agent

Creating and Activating Agent

Creating and Activating a Kubernetes Agent Creating and Activating a Docker Swarm Agent

Configuring data collection interval

Using Foglight for Container Management

Monitoring Kubernetes Pods

Kubernetes Pods Summary view

Monitoring Kubernetes Nodes

Kubernetes Nodes Summary view

Monitoring Kubernetes Clusters

Kubernetes Clusters Summary view

Monitoring Kubernetes Other Components

Configurations Controllers Storage Load Balancer

Alarms Capacity Management Optimizer

Settings

Monitoring Docker Containers

Docker Container Summary view

Monitoring Docker Hosts

Docker Host Summary view

Monitoring Docker Swarm Clusters

Docker Swarm Cluster Summary view

Monitoring Docker Swarm Services

Docker Swarm Service Summary view

Kubernetes analytics

Heatmap analytics Scatter Plot analytics

Docker Swarm analytics

Heatmap analytics Scatter Plot analytics

Domains and Object Groups

Domains Object Groups

Kubernetes metrics

Pod metrics Node metrics Cluster metrics

Docker Swarm metrics

Container metrics

Health Check Usage

Health Check Usage

Kubernetes Docker Swarm

Docker Swarm

All rules are controlled by registry variable Docker:AlertSensitivity. If the value is 0, then no alarm can be fired. If the value is 1, warning level alarm can be fired. If the value is above 1, then all level alarm can be fired.

Docker Swarm Administrator email address can be configured in Registry Variable Docker:DockerAdmin.

Health Check

Docker Container Status

This rule detects abnormal Container health status and fires alarm for different severity abnormal health status.

DockerContainer

Conditions and Severities


Conditions	Severity	Action
Container that is already stopped for abnormal reason.	Critical	Send email to Docker Swarm Administrator

Docker Container Status - Paused

This rule detects abnormal long-time paused Container and fires alarm for different severity abnormal health status.

DockerContainer

Conditions and Severities


Conditions	Severity	Action
Container paused for two continuous data submission periods.	Warning	None

Docker Service Status

This rule detects abnormal Docker Swarm Service health status and fires alarm for different severity abnormal health status.

Conditions and Severities


Conditions	Severity	Action
Missing some of the replicated task running for this service.	Critical	Send email to Docker Swarm Administrator

Docker Task Status

This rule detects abnormal Docker Swarm Task health status and fires alarm for different severity abnormal health status.

Conditions and Severities


Conditions	Severity	Action
Task that is in failed, orphaned or remove status.	Critical	Send email to Docker Swarm Administrator

Docker Task Status -- pending

This rule detects abnormal long-time pending Docker Swarm Task and fires alarm for different severity abnormal health status.

Conditions and Severities


Conditions	Severity	Action
Task that is in pending status for two continuous data submission periods.	Warning	None

Usage

Docker Swarm Container CPU Utilization

This rule detects abnormal CPU Utilization for Docker Swarm Containers, and fire alarm on different severities. It is disabled by default. You can customize it and enable it based on your different requirements. For more details about customization, refer to Customization . You can also change value of the registry variables or use your own value to change the threshold of each severities. This rule only works for those Containers that configures CPU limit.

DockerContainerCPU

Conditions and Severities


Conditions	Severity	Threshold (Registry Variable)*	Action
Container whose usage is about to reach the limit, the ration is above the value configured in fatal Threshold.	Fatal	Docker:ContainerCpuUtilizationFatal	Send email to Kubernetes Administrator
Pods whose usage is about to reach the limit, the ration is above the value configured in critical Threshold.	Critical	Docker:ContainerCpuUtilizationCritical	None
Pods whose usage is about to reach the limit, the ration is above the value configured in warning Threshold.	Warning	Docker:ContainerCpuUtilizationWarning	None

*Note: the unit is percentage.

Docker Swarm Container Memory Utilization

This rule detects abnormal Memory Utilization for Docker Swarm Containers, and fire alarm on different severities. It is disabled by default. You can customize it and enable it based on your different requirements. For more details about customization, refer to Customization . You can also change value of the registry variables or use your own value to change the threshold of each severities. This rule only works for those Containers that configures Memory limit.

DockerContainerMemory

Conditions and Severities


Conditions	Severity	Threshold (Registry Variable)*	Action
Container whose usage is about to reach the limit, the ration is above the value configured in fatal Threshold.	Fatal	Docker:ContainerMemoryUtilizationFatal	Send email to Kubernetes Administrator
Pods whose usage is about to reach the limit, the ration is above the value configured in critical Threshold.	Critical	Docker:ContainerMemoryUtilizationCritical	None
Pods whose usage is about to reach the limit, the ration is above the value configured in warning Threshold.	Warning	Docker:ContainerMemoryUtilizationWarning	None

*Note: the unit is percentage.

Customization

To customize a rule, Rule Scope and Condition will be used frequently.

To access Rule Scope and Condition, do the following:

1

Under Dashboards, click Administration > Rules & Notifications > Rules, then click on the rule and select View and Edit.

2

Click Rule Editor on the Rule Detail popup dialog box. Then click Continue on the Confirm Edit Rule popup dialog box.

3

On the Rule Editor dashboard, Rule Scope can be located on the Rule Definition tab and Condition can be located on the Condition & Actions tab.

Figure 46. Rule Scope

Figure 47. Condition

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