elasticsearch

- uri: template://default-provisioners/elasticsearch
  # By default, match all elasticsearch types regardless of class and id.
  # If you want to override this, create another provisioner definition with a higher priority.
  type: elasticsearch
  description: Provisions a dedicated Elastic Search instance.
  # Init template has the random service name and password if needed later
  init: |
    serviceName: elasticsearch
    randomPassword: {{ randAlphaNum 16 | quote }}
    clusterName: cluster-ecs-{{ randAlphaNum 6 }}
    username: elastic
    sk: default-provisioners-elasticsearch-instance
    publishPort: {{ dig "annotations" "compose.score.dev/publish-port" "9200" .Metadata | quote }}
    license: {{ dig "annotations" "compose.score.dev/license" "basic" .Metadata | quote }}
    stackVersion: {{ dig "annotations" "compose.score.dev/stack-version" "8.14.0" .Metadata | quote }}
    esMemLimit: {{ dig "annotations" "compose.score.dev/es-mem-limit" "1073741824" .Metadata | quote }}    
  # The state for each elasticsearch resource is a unique host, port, and credentials
  state: |
    clusterName: {{ dig "clusterName" .Init.clusterName .State | quote }}
    username: {{ dig "username" .Init.username .State | quote }}
    password: {{ dig "password" .Init.randomPassword .State | quote }}
    host: {{ dig "host" .Init.serviceName .State | quote }}    
  outputs: |
    host: {{ .State.host }}
    port: {{ .Init.publishPort }}
    username: {{ .State.username | quote }}
    password: {{ .State.password | quote }}    
  # Ensure the data volume exists
  volumes: |
    ecscerts:
      driver: local
    ecsdata:
      driver: local    
  # Create 2 services, the first is the setup container which creates the certificates, the second is the elasticsearch itself
  services: |
    setup:
      image: docker.elastic.co/elasticsearch/elasticsearch:{{ .Init.stackVersion }}
      volumes:
      - type: volume
        source: ecscerts
        target: /usr/share/elasticsearch/config/certs
      user: "0"
      command:
      - "bash"
      - "-c"
      - |
        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: {{ .State.host }}\n"\
          "    dns:\n"\
          "      - {{ .State.host }}\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 750 \{\} \;;
        find . -type f -exec chmod 640 \{\} \;;
        echo "Waiting for Elasticsearch availability";
        until curl -s --cacert config/certs/ca/ca.crt https://{{ .State.host }}:9200 | grep -q "missing authentication credentials"; do sleep 10; done;
        echo "All done!";
      healthcheck:
        test: ["CMD-SHELL", "[ -f config/certs/{{ .State.host }}/{{ .State.host }}.crt ]"]
        interval: 1s
        timeout: 5s
        retries: 120
    {{ .State.host }}:
      depends_on:
        setup:
          condition: service_healthy
      image: docker.elastic.co/elasticsearch/elasticsearch:{{ .Init.stackVersion }}
      labels:
        co.elastic.logs/module: elasticsearch
      volumes:
      - type: volume
        source: ecscerts
        target: /usr/share/elasticsearch/config/certs
      - type: volume
        source: ecsdata
        target: /usr/share/elasticsearch/data
      ports:
      - target: 9200
        published: {{ .Init.publishPort }}
      environment:
        - node.name={{ .State.host }}
        - cluster.name={{ .State.clusterName }}
        - discovery.type=single-node
        - bootstrap.memory_lock=true
        - ELASTIC_PASSWORD={{ .State.password }}
        - xpack.security.enabled=true
        - xpack.security.http.ssl.enabled=true
        - xpack.security.http.ssl.key=certs/{{ .State.host }}/{{ .State.host }}.key
        - xpack.security.http.ssl.certificate=certs/{{ .State.host }}/{{ .State.host }}.crt
        - xpack.security.http.ssl.certificate_authorities=certs/ca/ca.crt
        - xpack.security.transport.ssl.enabled=true
        - xpack.security.transport.ssl.key=certs/{{ .State.host }}/{{ .State.host }}.key
        - xpack.security.transport.ssl.certificate=certs/{{ .State.host }}/{{ .State.host }}.crt
        - xpack.security.transport.ssl.certificate_authorities=certs/ca/ca.crt
        - xpack.security.transport.ssl.verification_mode=certificate
        - xpack.license.self_generated.type={{ .Init.license }}
      mem_limit: {{ .Init.esMemLimit }}
      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    
  info_logs: |
    - "{{.Uid}}: To connect to elasticsearch:\n
        download certificate from container per command like: \n
        \tdocker cp [CONTAINER-NAME]:/usr/share/elasticsearch/config/certs/ca/ca.crt /tmp/ \n
        and than check connection per culr like: \n
        \tcurl --cacert /tmp/ca.crt -u {{ .State.username }}:{{ .State.password }} https://localhost:{{ .Init.publishPort }}"    
  expected_outputs:
    - host
    - port
    - username
    - password