A Kubernetes liveness and readiness probe is how the kubelet determines health of a pod. This is often times as simple as checking the ability to reach the main service port over TCP or HTTP. But if you are using Spring Boot and have enabled the Actuator dependency, you have the ability to create even … Kubernetes: liveness probe for Spring Boot with custom Actuator health check
While working on your Spring Boot web application locally, gradle provides the ‘bootRun’ for a quick development lifecycle and ‘bootJar’ for packaging all the dependencies as a single jar deliverable. But for most applications these days, you will need this packaged into an OCI compatible (i.e. Docker) image for its ultimate deployment to an orchestrator … Java: Creating Docker image for Spring Boot web app using gradle
If you have enabled Actuator in your Spring Boot application, you can add custom status metrics to the standard health check at ‘/actuator/health’. Additionally, your custom health indicator can signal an UP/DOWN status that propagates to the main level status and can then be used by an external monitoring/alerting solutions or as an indicator to … Java: adding custom health indicator to Spring Boot Actuator
If you have enabled Actuator and the ‘micrometer-registry-prometheus’ dependency in your Spring Boot application, then you will have a new ‘/actuator/prometheus’ web endpoint that returns general information about threads, garbage collection, disk, and memory. This information is delivered in standard prometheus formatting as plaintext, with one metric per line. This is exactly the type of … Java: Adding custom metrics to Spring Boot Micrometer Prometheus endpoint
If you have enabled Actuator in your Spring Boot application, then in addition to the standard endpoints for health and metrics, you can also add your own endpoint to expose custom metrics. In its simplest form, this is done by adding a @Component and @Endpoint annotation to a custom class that returns the metrics, and … Java: exposing a custom Actuator endpoint with Spring Boot