Can't connect OpenTelemetry collector with APM Server

Elastic Observability APM
, ,
1

Kibana version: 8.10.2

Elasticsearch version: 8.10.2

APM Server version: 8.10.2

APM Agent language and version:

Browser version: Chrome Version 118.0.5993.70 (Official Build) (64-bit)

Original install method (e.g. download page, yum, deb, from source, etc.) and version: I am running elk stack and apm server using docker.

Fresh install or upgraded from other version? Fresh

Is there anything special in your setup? No

Description of the problem:

I am trying to connect my OpenTelemetry collector to the APM server. But getting this error from the collector service,

collector | 2023-10-16T04:35:53.027Z  warn zapgrpc/zapgrpc.go:195  [core] [Channel #3 SubChannel #4] grpc: addrConn.createTransport failed to connect to {Addr: "apm-server:8200", ServerName: "apm-server:8200", }. Err: connection error: desc = "error reading server preface: remote error: tls: bad certificate"  {"grpc_log": true}
  • My docker-compose file to run the elk stack, apm server, and collector is below,
version: "3.8"

volumes:
  certs:
    driver: local
  esdata01:
    driver: local
  kibanadata:
    driver: local
  logstashdata01:
    driver: local
  apmdata:
    driver: local

services:
  setup:
    image: docker.elastic.co/elasticsearch/elasticsearch:${STACK_VERSION}
    volumes:
      - certs:/usr/share/elasticsearch/config/certs
    user: "0"
    command: >
      bash -c '
        if [ x${ELASTIC_PASSWORD} == x ]; then
          echo "Set the ELASTIC_PASSWORD environment variable in the .env file";
          exit 1;
        elif [ x${KIBANA_PASSWORD} == x ]; then
          echo "Set the KIBANA_PASSWORD environment variable in the .env file";
          exit 1;
        elif [ x${APM_PASSWORD} == x ]; then
          echo "Set the APM_PASSWORD environment variable in the .env file";
          exit 1;
        fi;
        if [ ! -f config/certs/ca.zip ]; then
          echo "Creating CA";
          bin/elasticsearch-certutil ca --silent --pem -out config/certs/ca.zip;
          unzip config/certs/ca.zip -d config/certs;
        fi;
        if [ ! -f config/certs/certs.zip ]; then
          echo "Creating certs";
          echo -ne \
          "instances:\n"\
          "  - name: es01\n"\
          "    dns:\n"\
          "      - es01\n"\
          "      - localhost\n"\
          "    ip:\n"\
          "      - 127.0.0.1\n"\
          "  - name: kibana\n"\
          "    dns:\n"\
          "      - kibana\n"\
          "      - localhost\n"\
          "    ip:\n"\
          "      - 127.0.0.1\n"\
          "  - name: apm-server\n"\
          "    dns:\n"\
          "      - apm-server\n"\
          "      - localhost\n"\
          "    ip:\n"\
          "      - 127.0.0.1\n"\
          > config/certs/instances.yml;
          bin/elasticsearch-certutil cert --silent --pem -out config/certs/certs.zip --in config/certs/instances.yml --ca-cert config/certs/ca/ca.crt --ca-key config/certs/ca/ca.key;
          unzip config/certs/certs.zip -d config/certs;
        fi;
        echo "Setting file permissions"
        chown -R root:root config/certs;
        find . -type d -exec chmod 755 \{\} \;;
        find . -type f -exec chmod 644 \{\} \;;
        echo "Waiting for Elasticsearch availability";
        until curl -s --cacert config/certs/ca/ca.crt https://es01:9200 | grep -q "missing authentication credentials"; do sleep 30; done;
        echo "Setting kibana_system password";
        until curl -s -X POST --cacert config/certs/ca/ca.crt -u "elastic:${ELASTIC_PASSWORD}" -H "Content-Type: application/json" https://es01:9200/_security/user/kibana_system/_password -d "{\"password\":\"${KIBANA_PASSWORD}\"}" | grep -q "^{}"; do sleep 10; done;
        echo "Setting apm_system password";
        until curl -s -X POST --cacert config/certs/ca/ca.crt -u "elastic:${ELASTIC_PASSWORD}" -H "Content-Type: application/json" https://es01:9200/_security/user/apm_system/_password -d "{\"password\":\"${APM_PASSWORD}\"}" | grep -q "^{}"; do sleep 10; done;
        echo "All done!";
      '
    healthcheck:
      test: [ "CMD-SHELL", "[ -f config/certs/es01/es01.crt ] && [ -f config/certs/kibana/kibana.crt ] && [ -f config/certs/apm-server/apm-server.crt ]" ]
      interval: 1s
      timeout: 5s
      retries: 120
    networks:
      - elk

  es01:
    depends_on:
      setup:
        condition: service_healthy
    image: docker.elastic.co/elasticsearch/elasticsearch:${STACK_VERSION}
    labels:
      co.elastic.logs/module: elasticsearch
    volumes:
      - certs:/usr/share/elasticsearch/config/certs
      - esdata01:/usr/share/elasticsearch/data
    ports:
      - ${ES_PORT}:9200
    environment:
      - node.name=es01
      - cluster.name=${CLUSTER_NAME}
      - discovery.type=single-node
      - ELASTIC_PASSWORD=${ELASTIC_PASSWORD}
      - bootstrap.memory_lock=true
      - xpack.security.enabled=true
      - xpack.security.http.ssl.enabled=true
      - xpack.security.http.ssl.key=certs/es01/es01.key
      - xpack.security.http.ssl.certificate=certs/es01/es01.crt
      - xpack.security.http.ssl.certificate_authorities=certs/ca/ca.crt
      - xpack.security.transport.ssl.enabled=true
      - xpack.security.transport.ssl.key=certs/es01/es01.key
      - xpack.security.transport.ssl.certificate=certs/es01/es01.crt
      - xpack.security.transport.ssl.certificate_authorities=certs/ca/ca.crt
      - xpack.security.transport.ssl.verification_mode=certificate
      - xpack.license.self_generated.type=${LICENSE}
    mem_limit: ${ES_MEM_LIMIT}
    ulimits:
      memlock:
        soft: -1
        hard: -1
    healthcheck:
      test:
        [
          "CMD-SHELL",
          "curl -s --cacert config/certs/ca/ca.crt https://localhost:9200 | grep -q 'missing authentication credentials'",
        ]
      interval: 10s
      timeout: 10s
      retries: 120
    networks:
      - elk

  kibana:
    depends_on:
      es01:
        condition: service_healthy
    image: docker.elastic.co/kibana/kibana:${STACK_VERSION}
    labels:
      co.elastic.logs/module: kibana
    volumes:
      - certs:/usr/share/kibana/config/certs
      - kibanadata:/usr/share/kibana/data
    ports:
      - ${KIBANA_PORT}:5601
    environment:
      - SERVERNAME=kibana
      - ELASTICSEARCH_HOSTS=https://es01:9200
      - ELASTICSEARCH_USERNAME=kibana_system
      - ELASTICSEARCH_PASSWORD=${KIBANA_PASSWORD}
      - ELASTICSEARCH_SSL_CERTIFICATEAUTHORITIES=config/certs/ca/ca.crt
      - XPACK_SECURITY_ENCRYPTIONKEY=${ENCRYPTION_KEY}
      - XPACK_ENCRYPTEDSAVEDOBJECTS_ENCRYPTIONKEY=${ENCRYPTION_KEY}
      - XPACK_REPORTING_ENCRYPTIONKEY=${ENCRYPTION_KEY}
    mem_limit: ${KB_MEM_LIMIT}
    healthcheck:
      test:
        [
          "CMD-SHELL",
          "curl -s -I http://localhost:5601 | grep -q 'HTTP/1.1 302 Found'",
        ]
      interval: 10s
      timeout: 10s
      retries: 120
    networks:
      - elk

  logstash01:
    depends_on:
      es01:
        condition: service_healthy
      kibana:
        condition: service_healthy
    image: docker.elastic.co/logstash/logstash:${STACK_VERSION}
    labels:
      co.elastic.logs/module: logstash
    user: root
    volumes:
      - certs:/usr/share/logstash/certs
      - logstashdata01:/usr/share/logstash/data
      - "./observability-configuration/logstash_ingest_data/:/usr/share/logstash/ingest_data/"
      - "./observability-configuration/elk-stack/logstash.conf:/usr/share/logstash/pipeline/logstash.conf:ro"
    environment:
      - xpack.monitoring.enabled=false
      - ELASTIC_USER=elastic
      - ELASTIC_PASSWORD=${ELASTIC_PASSWORD}
      - ELASTIC_HOSTS=https://es01:9200
    networks:
      - elk

  apm-server:
    depends_on:
      es01:
        condition: service_healthy
    image: docker.elastic.co/apm/apm-server:${STACK_VERSION}
    labels:
      co.elastic.logs/module: apm-server
    volumes:
      - certs:/usr/share/apm-server/config/certs
      - apmdata:/usr/share/apm-server/data
    command: >
      apm-server -e
        -E output.elasticsearch.hosts="https://es01:9200"
        -E output.elasticsearch.username=apm_system
        -E output.elasticsearch.password=${APM_PASSWORD}
        -E output.elasticsearch.ssl.certificate_authorities=/usr/share/apm-server/config/certs/ca/ca.crt
        -E apm-server.ssl.enabled=true
        -E apm-server.ssl.key=/usr/share/apm-server/config/certs/apm-server/apm-server.key
        -E apm-server.ssl.certificate=/usr/share/apm-server/config/certs/apm-server/apm-server.crt
        -E apm-server.ssl.certificate_authorities=/usr/share/apm-server/config/certs/ca/ca.crt
        -E apm-server.kibana.enabled=true
        -E apm-server.kibana.host="https://kibana:${KIBANA_PORT}"
        -E logging.level=debug
    ports:
      - ${APM_PORT}:8200
    healthcheck:
      test: [ "CMD-SHELL", "curl -s --cacert config/certs/ca/ca.crt https://localhost:8200 | grep -q 'build_date'" ]
      interval: 10s
      timeout: 10s
      retries: 120
    networks:
      - elk

  collector:
    image: otel/opentelemetry-collector-contrib:0.85.0
    container_name: collector
    hostname: collector
    command: [ "--config=/etc/collector-config.yaml" ]
    volumes:
      - ./collector-config-elk.yaml:/etc/collector-config.yaml
      - ./observable-spring-boot-app.log:/var/log/observable-spring-boot-app.log
      # Add the volume for the CA certificate here
      - certs:/usr/share/apm-server/config/certs
    depends_on:
      apm-server:
        condition: service_healthy
      kibana:
        condition: service_healthy
    ports:
      - "5555:5555"
      - "6666:6666"
    networks:
      - elk

networks:
  elk:
    driver: bridge
  • My collector-config.yaml file is below,
receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:5555
  filelog:
    include: [ "/var/log/observable-spring-boot-app.log" ]
  hostmetrics:
    collection_interval: 10s
    scrapers:
      cpu:
        metrics:
          system.cpu.time:
            enabled: true
          system.cpu.utilization:
            enabled: true
      disk:
      load:
      filesystem:
      memory:
        metrics:
          system.memory.usage:
            enabled: true
          system.memory.utilization:
            enabled: true
      network:
      paging:
      process:
        metrics:
          process.cpu.time:
            enabled: true
          process.disk.io:
            enabled: true
          process.memory.usage:
            enabled: true
          process.memory.virtual:
            enabled: true
          process.threads:
            enabled: true
      processes:
        metrics:
          system.processes.count:
            enabled: true
          system.processes.created:
            enabled: true

processors:
  attributes:
    actions:
      - action: insert
        key: loki.attribute.labels
        value: log.file.name  
  memory_limiter:
    check_interval: 1s
    limit_mib: 2000
  batch:
    timeout: 1s
    send_batch_size: 1024

exporters:
  logging:
    loglevel: warn
  otlp/elastic:
    endpoint: apm-server:8200
    headers:
      Authorization: "Bearer ${ELASTIC_APM_SERVER_SECRET}"
    tls:
      ca_file: /usr/share/apm-server/config/certs/ca/ca.crt

service:
  pipelines:
    traces:
      receivers: [ otlp ]
      processors: [ batch ]
      exporters: [ logging, otlp/elastic]
    metrics:
      receivers: [ otlp ]
      processors: [ batch ]
      exporters: [ logging, otlp/elastic]
    logs:
      receivers: [ otlp ]
      processors: [ batch ]
      exporters: [ logging, otlp/elastic]

Please help me to connect OpenTelemetry with the APM server. I am stuck for almost 1 week.

Steps to reproduce:

  1. Run the docker-compose file to run the elk stack and APM server with a self-signed certificate.
  2. Integrate the apm server from Kibana.
  3. Use the same collector config file and run the collector service.
2

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