140. Pod Health Indicator

140. Pod Health Indicator
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Spring Boot uses HealthIndicator to expose info about the health of an application. That makes it really useful for exposing health-related information to the user and makes it a good fit for use as readiness probes.

The Kubernetes health indicator (which is part of the core module) exposes the following info:

Pod name, IP address, namespace, service account, node name, and its IP address
A flag that indicates whether the Spring Boot application is internal or external to Kubernetes

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