Foglight for Container Management 3.0 - User Guide

Health Check

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

DockerContainer

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

DockerContainer

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

DockerService

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

DockerTask

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

DockerTask

Usage

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

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

Customization

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

Kubernetes

Finding Pods inside cluster “kubecluster”, enter following statement in the Scope of a rule, and choose KubePod as the Topology Type in the Rule Scope.

KubePod where namespace.cluster.name='kubecluster'

Finding Pods inside namespace “default” of Cluster “kubecluster”, enter following statement in the Scope of a rule, and choose KubePod as the Topology Type in the Rule Scope.

KubePod where namespace.cluster.name='kubecluster' and namespace.name='test'

Finding Nodes inside cluster “kubecluster”, enter following statement in the Scope of a rule, and choose KubeNode as the Topology Type in the Rule Scope.

KubeNode where cluster.name='nancyakscluster'

Find Pods with labels “run=nginx” and “env=prod” among all clusters, enter following statement in the Scope of a rule, and choose KubePod as the Topology Type in the Rule Scope.

KubePod where labels.key='run' and labels.value='nginx-rollingupdate' and labels.key=’env’ and labels.value=’prod’

If you want to find Pods by labels in namespace “test” of cluster “kubecluster”, you can append and namespace.cluster.name='kubecluster' and namespace.name='test' to the end of above statement.

Find Nodes with labels “env=prod” among all clusters, enter following statement in the Scope of a rule, and choose KubeNode as the Topology Type in the Rule Scope.

KubeNode where labels.key='env' and labels.value='prod'

If you want to find Nodes by labels in cluster “kubecluster”, you can append and cluster.name='kubecluster' to the end of above statement.

Find Pods Metrics with labels “run=nginx” and “env=prod” among all clusters, enter following statement in the Scope of a rule, and choose KubeHeapsterMetrics as the Topology Type in the Rule Scope.

KubePod.metrics where object.labels.key='run' and object.labels.value=’nginx’ and object.labels.key='env' and object.labels.value=’prod’

If you want to find Pods by labels in namespace “test” of cluster “kubecluster”, you can append and namespace.cluster.name='kubecluster' and namespace.name='test' to the end of above statement.

Find Node Metrics with labels “env=prod” among all clusters, enter following statement in the Scope of a rule, and choose KubeHeapsterMetrics as the Topology Type in the Rule Scope.

KubeNode.metrics where object.labels.key='env' and object.labels.value=’prod’

If you want to find Nodes by labels in cluster “kubecluster”, you can append and cluster.name='kubecluster' to the end of above statement.