Questions about reload properties

[audtjddld]

Describe the bug Please provide details of the problem, including the version of Spring Cloud that you are using.

Is not a bug.

I try to reload properties with spring cloud kubernates library.

Here is my configuration

gradle

implementation("org.springframework.cloud:spring-cloud-starter-kubernetes-fabric8-all:3.1.2")

properties

spring:
  config:
    import: 'kubernetes:'
  cloud:
    kubernetes:
      config:
        name: config-name
        namespace: config-name-namespace
        sources:
          - name: test.message
        enabled: true
      reload:
        enabled: true
        strategy: refresh
        mode: event
        namespaces: config-name-namespace

source code

@Configuration
@ConfigurationProperties(prefix = "test")
class SampleProperty {
    var message: String = ""
}

@RefreshScope
@Component
class SampleService(
    private val sampleProperty: SampleProperty
) {
    fun test(): String {
        return "The Message is ${sampleProperty.message}"
    }

    @Scheduled(fixedRate = 5000)
    fun print() {
        println(test())
    }
}

I used kustomize.

k8s manifests

role

apiVersion: v1
kind: ServiceAccount
metadata:
  name: config-service
  namespace: config-name-namespace

---

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: config-role
rules:
  - apiGroups: [""]
    resources: ["configmaps", "pods", "services", "endpoints", "secrets"]
    verbs: ["get", "list", "watch"]

---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: config-name
  namespace: config-name-namespace
subjects:
- kind: ServiceAccount
  name: config-service
  apiGroup: ""
roleRef:
  kind: ClusterRole
  name: config-role
  apiGroup: rbac.authorization.k8s.io

I changed a property in the k8s configuration map. I found this log

2024-06-07T18:52:00.825+09:00 DEBUG 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : findPropertySources : []
2024-06-07T18:52:00.825+09:00 DEBUG 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : left size: 1
2024-06-07T18:52:00.825+09:00 DEBUG 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : Fabric8ConfigMapPropertySource@128468998 {name='configmap.test.message.<namespace>, properties={}}
2024-06-07T18:52:00.825+09:00 DEBUG 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : right size: 0
2024-06-07T18:52:00.825+09:00  WARN 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : The current number of ConfigMap PropertySources does not match the ones loaded from Kubernetes - No reload will take place
2024-06-07T18:52:00.825+09:00 DEBUG 1 --- [-253011924-pool-2-thread-3] o.s.c.k.c.c.reload.ConfigReloadUtil      : No change detected in config maps/secrets, reload will not happen

So I checked the configuration map. I confirmed that it has changed.

It doesn't reload. Is there a problem with the information I set?

Note: I have changed the setup information to be different from what I am currently working with.

Sample If possible, please provide a test case or sample application that reproduces the problem. This makes it much easier for us to diagnose the problem and to verify that we have fixed it.

[ryanjbaxter]

Can you also provide your configmaps?

[audtjddld]

Can you also provide your configmaps?

Here is my configmap

overlays/dev/config/application.properties

spring.profiles.active=dev
test.message=here test message

overlays/dev/configmap.yaml

apiVersion: builtin
kind: ConfigMapGenerator
metadata:
  name: config-name
behavior: merge
envs:
  - config/application.properties

base/configmap.yaml

apiVersion: builtin
kind: ConfigMapGenerator
metadata:
  name: config-name
options:
  disableNameSuffixHash: true
envs:
  - config/application.properties

generated configmap

apiVersion: v1
data:
  test.message: here test message
kind: ConfigMap
metadata:
  labels:
    app.kubernetes.io/name: config-name
    vector.dev/label: config-name-label
  name: config-name
  namespace: config-name-namespace

[wind57]

Can you provide a sample that for example is a github repo, with clear instructions how to re-produce the issue, let's say to deploy it in minikube or kind?

[ryanjbaxter]

I dont think this is correct

        sources:
          - name: test.message

That is the data in your config map. The sources.name property should be the name of the config map.

[audtjddld]

Can you provide a sample that for example is a github repo, with clear instructions how to re-produce the issue, let's say to deploy it in minikube or kind?

Thank you for answer

The sample will probably take some time. (I have other things to do) I used the in-house kubernetes cloud to test it.

If the issue is open for a long time, it would be a good idea to close the issue and prepare the sample before reopening it.

[ryanjbaxter]

See my comment here I think that might help https://github.com/spring-cloud/spring-cloud-kubernetes/issues/1666#issuecomment-2179405315

[spring-cloud-issues]

If you would like us to look at this issue, please provide the requested information. If the information is not provided within the next 7 days this issue will be closed.

[spring-cloud-issues]

Closing due to lack of requested feedback. If you would like us to look at this issue, please provide the requested information and we will re-open the issue.