Spring Boot Monitoring via Prometheus -Grafana

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-actuator</artifactId>

</dependency>

<dependency>   <groupId>io.micrometer</groupId>

<artifactId>micrometer-registry-prometheus</artifactId>

</dependency>

management.endpoints.web.exposure.include=*

management.endpoints.web.exposure.exclude=

management.endpoints.jmx.exposure.include=*

management.endpoints.jmx.exposure.exclude=

management.endpoints.web.exposure.include=health,info,prometheus

management.endpoints.web.exposure.exclude

management.health.defaults.enabled =false

management.health.cassandra.enabled=false

 - job_name: 'AcrHandler-Actuator'

    metrics_path: 'acrhandler/actuator/prometheus'

    scrape_interval: 5s

    static_configs:

    - targets: ['127.0.0.1:8898']

# HELP tomcat_sessions_created_sessions_total  # TYPE tomcat_sessions_created_sessions_total counter tomcat_sessions_created_sessions_total 0.0 # HELP tomcat_sessions_expired_sessions_total  # TYPE tomcat_sessions_expired_sessions_total counter tomcat_sessions_expired_sessions_total 0.0 # HELP http_server_requests_seconds  # TYPE http_server_requests_seconds summary http_server_requests_seconds_count{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 5.0 http_server_requests_seconds_sum{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 0.135901256 # HELP http_server_requests_seconds_max  # TYPE http_server_requests_seconds_max gauge http_server_requests_seconds_max{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 0.084112625 # HELP health  # TYPE health gauge health 1.0 # HELP process_files_max_files The maximum file descriptor count # TYPE process_files_max_files gauge process_files_max_files 4096.0 # HELP hikaricp_connections_creation_seconds_max Connection creation time # TYPE hikaricp_connections_creation_seconds_max gauge hikaricp_connections_creation_seconds_max{pool="HikariPool-1",} 0.0 # HELP hikaricp_connections_creation_seconds Connection creation time # TYPE hikaricp_connections_creation_seconds summary hikaricp_connections_creation_seconds_count{pool="HikariPool-1",} 0.0 hikaricp_connections_creation_seconds_sum{pool="HikariPool-1",} 0.0 # HELP jvm_threads_live_threads The current number of live threads including both daemon and non-daemon threads # TYPE jvm_threads_live_threads gauge jvm_threads_live_threads 33.0 # HELP process_uptime_seconds The uptime of the Java virtual machine # TYPE process_uptime_seconds gauge process_uptime_seconds 38.376 # HELP jvm_gc_memory_promoted_bytes_total Count of positive increases in the size of the old generation memory pool before GC to after GC # TYPE jvm_gc_memory_promoted_bytes_total counter jvm_gc_memory_promoted_bytes_total 9702952.0 # HELP system_load_average_1m The sum of the number of runnable entities queued to available processors and the number of runnable entities running on the available processors averaged over a period of time # TYPE system_load_average_1m gauge system_load_average_1m 3.23 # HELP jvm_gc_memory_allocated_bytes_total Incremented for an increase in the size of the young generation memory pool after one GC to before the next # TYPE jvm_gc_memory_allocated_bytes_total counter jvm_gc_memory_allocated_bytes_total 1.1564802E9 # HELP jvm_gc_live_data_size_bytes Size of old generation memory pool after a full GC # TYPE jvm_gc_live_data_size_bytes gauge jvm_gc_live_data_size_bytes 2.4583664E7 # HELP logback_events_total Number of error level events that made it to the logs # TYPE logback_events_total counter logback_events_total{level="warn",} 2.0 logback_events_total{level="debug",} 0.0 logback_events_total{level="error",} 0.0 logback_events_total{level="trace",} 0.0 logback_events_total{level="info",} 24.0 # HELP jvm_threads_daemon_threads The current number of live daemon threads # TYPE jvm_threads_daemon_threads gauge jvm_threads_daemon_threads 18.0 # HELP hikaricp_connections_pending Pending threads # TYPE hikaricp_connections_pending gauge hikaricp_connections_pending{pool="HikariPool-1",} 0.0 # HELP hikaricp_connections_usage_seconds Connection usage time # TYPE hikaricp_connections_usage_seconds summary hikaricp_connections_usage_seconds_count{pool="HikariPool-1",} 18.0 hikaricp_connections_usage_seconds_sum{pool="HikariPool-1",} 0.392 # HELP hikaricp_connections_usage_seconds_max Connection usage time # TYPE hikaricp_connections_usage_seconds_max gauge hikaricp_connections_usage_seconds_max{pool="HikariPool-1",} 0.23 # HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management # TYPE jvm_memory_max_bytes gauge jvm_memory_max_bytes{area="heap",id="PS Survivor Space",} 1.1534336E7 jvm_memory_max_bytes{area="heap",id="PS Old Gen",} 4.185915392E9 jvm_memory_max_bytes{area="heap",id="PS Eden Space",} 2.069364736E9 jvm_memory_max_bytes{area="nonheap",id="Metaspace",} -1.0 jvm_memory_max_bytes{area="nonheap",id="Code Cache",} 2.5165824E8 jvm_memory_max_bytes{area="nonheap",id="Compressed Class Space",} 1.073741824E9 # HELP hikaricp_connections_acquire_seconds Connection acquire time # TYPE hikaricp_connections_acquire_seconds summary hikaricp_connections_acquire_seconds_count{pool="HikariPool-1",} 18.0 hikaricp_connections_acquire_seconds_sum{pool="HikariPool-1",} 0.129593483 # HELP hikaricp_connections_acquire_seconds_max Connection acquire time # TYPE hikaricp_connections_acquire_seconds_max gauge hikaricp_connections_acquire_seconds_max{pool="HikariPool-1",} 0.065776108 # HELP process_files_open_files The open file descriptor count # TYPE process_files_open_files gauge process_files_open_files 35.0 # HELP jdbc_connections_min  # TYPE jdbc_connections_min gauge jdbc_connections_min{name="dataSource",} 5.0 # HELP jdbc_connections_idle  # TYPE jdbc_connections_idle gauge jdbc_connections_idle{name="dataSource",} 5.0 # HELP system_cpu_usage The "recent cpu usage" for the whole system # TYPE system_cpu_usage gauge system_cpu_usage 0.06451612903225806 # HELP jvm_classes_unloaded_classes_total The total number of classes unloaded since the Java virtual machine has started execution # TYPE jvm_classes_unloaded_classes_total counter jvm_classes_unloaded_classes_total 0.0 # HELP hikaricp_connections_min Min connections # TYPE hikaricp_connections_min gauge hikaricp_connections_min{pool="HikariPool-1",} 5.0 # HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use # TYPE jvm_memory_committed_bytes gauge jvm_memory_committed_bytes{area="heap",id="PS Survivor Space",} 1.1534336E7 jvm_memory_committed_bytes{area="heap",id="PS Old Gen",} 2.86261248E8 jvm_memory_committed_bytes{area="heap",id="PS Eden Space",} 6.0030976E8 jvm_memory_committed_bytes{area="nonheap",id="Metaspace",} 7.6324864E7 jvm_memory_committed_bytes{area="nonheap",id="Code Cache",} 1.6515072E7 jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space",} 1.0797056E7 # HELP hikaricp_connections Total connections # TYPE hikaricp_connections gauge hikaricp_connections{pool="HikariPool-1",} 5.0 # HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool # TYPE jvm_buffer_memory_used_bytes gauge jvm_buffer_memory_used_bytes{id="direct",} 49152.0 jvm_buffer_memory_used_bytes{id="mapped",} 0.0 # HELP process_start_time_seconds Start time of the process since unix epoch. # TYPE process_start_time_seconds gauge process_start_time_seconds 1.604402424269E9 # HELP jvm_classes_loaded_classes The number of classes that are currently loaded in the Java virtual machine # TYPE jvm_classes_loaded_classes gauge jvm_classes_loaded_classes 14017.0 # HELP hikaricp_connections_active Active connections # TYPE hikaricp_connections_active gauge hikaricp_connections_active{pool="HikariPool-1",} 0.0 # HELP jvm_gc_pause_seconds Time spent in GC pause # TYPE jvm_gc_pause_seconds summary jvm_gc_pause_seconds_count{action="end of major GC",cause="Metadata GC Threshold",} 1.0 jvm_gc_pause_seconds_sum{action="end of major GC",cause="Metadata GC Threshold",} 0.15 jvm_gc_pause_seconds_count{action="end of minor GC",cause="Metadata GC Threshold",} 1.0 jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Metadata GC Threshold",} 0.035 jvm_gc_pause_seconds_count{action="end of minor GC",cause="Allocation Failure",} 2.0 jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Allocation Failure",} 0.059 # HELP jvm_gc_pause_seconds_max Time spent in GC pause # TYPE jvm_gc_pause_seconds_max gauge jvm_gc_pause_seconds_max{action="end of major GC",cause="Metadata GC Threshold",} 0.15 jvm_gc_pause_seconds_max{action="end of minor GC",cause="Metadata GC Threshold",} 0.035 jvm_gc_pause_seconds_max{action="end of minor GC",cause="Allocation Failure",} 0.03 # HELP jdbc_connections_active  # TYPE jdbc_connections_active gauge jdbc_connections_active{name="dataSource",} 0.0 # HELP tomcat_sessions_active_current_sessions  # TYPE tomcat_sessions_active_current_sessions gauge tomcat_sessions_active_current_sessions 0.0 # HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool # TYPE jvm_buffer_total_capacity_bytes gauge jvm_buffer_total_capacity_bytes{id="direct",} 49152.0 jvm_buffer_total_capacity_bytes{id="mapped",} 0.0 # HELP hikaricp_connections_timeout_total Connection timeout total count # TYPE hikaricp_connections_timeout_total counter hikaricp_connections_timeout_total{pool="HikariPool-1",} 0.0 # HELP hikaricp_connections_idle Idle connections # TYPE hikaricp_connections_idle gauge hikaricp_connections_idle{pool="HikariPool-1",} 5.0 # HELP jvm_memory_used_bytes The amount of used memory # TYPE jvm_memory_used_bytes gauge jvm_memory_used_bytes{area="heap",id="PS Survivor Space",} 9109568.0 jvm_memory_used_bytes{area="heap",id="PS Old Gen",} 2.4591856E7 jvm_memory_used_bytes{area="heap",id="PS Eden Space",} 4.32988248E8 jvm_memory_used_bytes{area="nonheap",id="Metaspace",} 7.1654952E7 jvm_memory_used_bytes{area="nonheap",id="Code Cache",} 1.558432E7 jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space",} 9960632.0 # HELP jvm_threads_peak_threads The peak live thread count since the Java virtual machine started or peak was reset # TYPE jvm_threads_peak_threads gauge jvm_threads_peak_threads 34.0 # HELP hikaricp_connections_max Max connections # TYPE hikaricp_connections_max gauge hikaricp_connections_max{pool="HikariPool-1",} 5.0 # HELP system_cpu_count The number of processors available to the Java virtual machine # TYPE system_cpu_count gauge system_cpu_count 2.0 # HELP tomcat_sessions_active_max_sessions  # TYPE tomcat_sessions_active_max_sessions gauge tomcat_sessions_active_max_sessions 0.0 # HELP jvm_gc_max_data_size_bytes Max size of old generation memory pool # TYPE jvm_gc_max_data_size_bytes gauge jvm_gc_max_data_size_bytes 4.185915392E9 # HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool # TYPE jvm_buffer_count_buffers gauge jvm_buffer_count_buffers{id="direct",} 6.0 jvm_buffer_count_buffers{id="mapped",} 0.0 # HELP process_cpu_usage The "recent cpu usage" for the Java Virtual Machine process # TYPE process_cpu_usage gauge process_cpu_usage 0.01282051282051282 # HELP jvm_threads_states_threads The current number of threads having NEW state # TYPE jvm_threads_states_threads gauge jvm_threads_states_threads{state="runnable",} 6.0 jvm_threads_states_threads{state="blocked",} 0.0 jvm_threads_states_threads{state="waiting",} 12.0 jvm_threads_states_threads{state="timed-waiting",} 15.0 jvm_threads_states_threads{state="new",} 0.0 jvm_threads_states_threads{state="terminated",} 0.0 # HELP tomcat_sessions_rejected_sessions_total  # TYPE tomcat_sessions_rejected_sessions_total counter tomcat_sessions_rejected_sessions_total 0.0 # HELP jdbc_connections_max  # TYPE jdbc_connections_max gauge jdbc_connections_max{name="dataSource",} 5.0 # HELP tomcat_sessions_alive_max_seconds  # TYPE tomcat_sessions_alive_max_seconds gauge tomcat_sessions_alive_max_seconds 0.0

@Configuration

public class HealthMetricsConfiguration {

    @Bean

    MeterRegistryCustomizer<MeterRegistry> healthRegistryCustomizer(HealthContributorRegistry healthRegistry) {

        return registry -> registry.gauge("health", emptyList(), healthRegistry, health -> {

            var status = aggregatedStatus(health);

            switch (status.getCode()) {

                case "UP":

                    return 1;

                case "OUT_OF_SERVICE":

                    return -1;

                case "DOWN":

                    return -2;

                case "UNKNOWN":

                default:

                    return 0;

            }

        });

    }

    private static Status aggregatedStatus(HealthContributorRegistry health) {

        var healthList = health.stream()

                .map(r -> ((HealthIndicator) r.getContributor()).getHealth(false).getStatus())

                .collect(Collectors.toSet());

        var statusAggregator = new SimpleStatusAggregator();

        return statusAggregator.getAggregateStatus(healthList);

    }