Add MeterRegistry monitoring

- update and cleanup in README.md
- extract webclient call from registerDevice and add metrics in DeviceRegistryService
- add WebClientCalls.kt
- update kotlin logging dependency
- add MeterRegistry dependency

src/main/resources/application.yml

@@ -10,6 +10,25 @@ spring:
         name: "%APP_BUILD_OS_NAME%"
         version: "%APP_BUILD_OS_VERSION%"
 
+management:
+  endpoints:
+    enabled-by-default: false
+    web:
+      exposure:
+        include: "health,info"
+  endpoint:
+    health:
+      enabled: true
+      show-details: always
+    info:
+      enabled: true
+  influx:
+    metrics:
+      export:
+        api-version: v2
+        bucket: hlaeja
+        org: hlaeja_ltd
+
 ---
 ###############################
 ### Development environment ###
@@ -30,6 +49,16 @@ server:
 device-registry:
   url: http://localhost:9010
 
+management:
+  metrics:
+    tags:
+      application: register-api
+  influx:
+    metrics:
+      export:
+        enabled: false
+        token: %INFLUXDB_TOKEN%
+
 ---
 ##########################
 ### Docker environment ###
@@ -39,6 +68,15 @@ spring:
     activate:
       on-profile: docker
 
+management:
+  metrics:
+    tags:
+      application: register-api
+  influx:
+    metrics:
+      export:
+        uri: http://InfluxDB:8086
+
 server:
   port: 8443
   ssl: