spring-boot-admin-docker

Continously built container images for spring-boot-admin.

As spring-boot-admin is only available as library without packaged releases, this repository aims to fix that. This repository automatically builds a new image every day and publishes it to the GitHub container registry. Published images can be found here.

Images are tagged with the respective spring-boot-admin version.

Addons

• Kubernetes service discovery is included and enabled by default

Configuration

To configure settings for your instance, either use environment variables as defined in the spring documentation or mount a file called application.yaml to /deployments/application.yaml when running the container.

Service discovery

Monitored applications are located through Spring Cloud discovery. Two options are available.

Kubernetes discovery

The Kubernetes discovery client is on the classpath. When the application runs inside a cluster it discovers other pods/services automatically; no additional configuration is required beyond the usual RBAC allowing the pod to list services and endpoints.

Simple (static) discovery

To register targets explicitly — for local testing or for instances outside the cluster — use the simple discovery client. Each entry needs the target's base uri and the management.context-path metadata so SBA knows where the actuator endpoints live:

spring:
  cloud:
    discovery:
      client:
        simple:
          instances:
            my-application:
              - uri: http://localhost:18080
                metadata:
                  management.context-path: /actuator

Discovering more than one client

The key under instances is the application name, and its value is a list, so you can register several instances of the same application and add further applications as additional keys:

spring:
  cloud:
    discovery:
      client:
        simple:
          instances:
            my-application:
              - uri: http://my-application-1:18080
                metadata:
                  management.context-path: /actuator
              - uri: http://my-application-2:18080
                metadata:
                  management.context-path: /actuator
            another-application:
              - uri: http://another-application:8080
                metadata:
                  management.context-path: /actuator