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A1 PMS Spring Boot application exposes some management endpoints including loggers, metrics, Prometheus and so on...

All these params are provided in application.yaml file.

application.yaml
management:
  endpoints:
    web:
      exposure:
        # Enabling of springboot actuator features. See springboot documentation.
        include: "loggers,logfile,health,info,metrics,threaddump,heapdump,prometheus"

In order to access these exposures, you need to form an URL and append metric's name end of the URL like below:

http://localhost:8081/actuator/health or http://localhost:8081/actuator/prometheus




On the other hand, if you want to visualize these in Prometheus GUI,
you can bind the below 'prometheus.yml' file while starting the Prometheus container.

You can use this link to access Prometheus' page and instructions:

https://prometheus.io/

https://hub.docker.com/u/prom


prometheus.yml 
#
# ============LICENSE_START=======================================================
# ONAP : ccsdk oran
# ================================================================================
# Copyright (C) 2022 Nordix Foundation. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=========================================================
#

# Sample Prometheus config
# This assumes that your Prometheus instance can access this application on localhost:8081
# host.docker.internal could be overridden as per the application's end-point e.g. localhost

global:
  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

scrape_configs:
  - job_name: 'A1 PMS scrape'
    metrics_path: '/actuator/prometheus'
    scrape_interval: 15s
    static_configs:
      - targets: ['host.docker.internal:8081']
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