diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/secret/SecretSource.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/secret/SecretSource.kt
index 663bfc6..a48d973 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/secret/SecretSource.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/secret/SecretSource.kt
@@ -30,7 +30,7 @@ enum class SecretSourceType() {
 
 
 @Serializable
-class SecretSupplier(private val source: SecretSourceType, val parameter: String) {
+data class SecretSupplier(private val source: SecretSourceType, val parameter: String) {
     fun secret(): Secret {
         return source.secret(parameter)
     }
diff --git a/src/test/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/GrafanaAgentRepositoryKtTest.kt b/src/test/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/GrafanaAgentRepositoryKtTest.kt
new file mode 100644
index 0000000..814a24a
--- /dev/null
+++ b/src/test/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/GrafanaAgentRepositoryKtTest.kt
@@ -0,0 +1,35 @@
+package org.domaindrivenarchitecture.provs.server.infrastructure
+
+import org.domaindrivenarchitecture.provs.configuration.domain.ConfigFileName
+import org.domaindrivenarchitecture.provs.framework.ubuntu.secret.SecretSourceType
+import org.domaindrivenarchitecture.provs.framework.ubuntu.secret.SecretSupplier
+import org.domaindrivenarchitecture.provs.server.domain.k8s_grafana_agent.GrafanaAgentConfig
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+internal class GrafanaAgentRepositoryKtTest {
+
+    @Test
+    fun findK8sGrafanaConfig_returns_config() {
+        // when
+        val config = findK8sGrafanaConfig(ConfigFileName("src/test/resources/k3s-server-config-with-grafana.yaml"))
+
+        // then
+        assertEquals(
+            GrafanaAgentConfig(
+                user = "654321",
+                password = SecretSupplier(SecretSourceType.GOPASS, "path/to/key"),
+                cluster = "myclustername"
+            ), config
+        )
+    }
+
+    @Test
+    fun findK8sGrafanaConfig_returns_null_if_no_grafan_data_available() {
+        // when
+        val config = findK8sGrafanaConfig(ConfigFileName("src/test/resources/k3sServerConfig.yaml"))
+
+        // then
+        assertEquals(null, config)
+    }
+}
\ No newline at end of file
diff --git a/src/test/resources/k3s-server-config-with-grafana.yaml b/src/test/resources/k3s-server-config-with-grafana.yaml
new file mode 100644
index 0000000..201ff9c
--- /dev/null
+++ b/src/test/resources/k3s-server-config-with-grafana.yaml
@@ -0,0 +1,18 @@
+fqdn: statistics.test.meissa-gmbh.de
+node:
+  ipv4: 162.55.164.138
+  ipv6: 2a01:4f8:c010:672f::1
+certmanager:
+  email: admin@meissa-gmbh.de
+  letsencryptEndpoint: prod
+echo: true
+reprovision: true
+
+
+grafana:
+  user: "654321"   # username for the grafana data source
+  password:
+    source: "GOPASS"           # PLAIN, GOPASS or PROMPT
+    parameter: "path/to/key"   # password of the user or api key
+  cluster: "myclustername"          # the cluster name of your choice
+