extensions:
  file_storage:
    directory: /var/lib/han-otel/host-collector
    timeout: 10s

receivers:
  filelog/docker:
    include: [/var/lib/docker/containers/*/*-json.log]
    start_at: end
    include_file_path: true
    storage: file_storage
    operators:
      - type: json_parser
        id: docker-json
        timestamp:
          parse_from: attributes.time
          layout_type: gotime
          layout: "2006-01-02T15:04:05.000000000Z07:00"
      - type: regex_parser
        id: docker-service-label
        parse_from: attributes["attrs"]["tag"]
        if: 'attributes["attrs"]["tag"] != nil'
        regex: '^(?P<docker_service>nginx|keycloak|redis)$'
      - type: move
        from: attributes.docker_service
        to: resource["service.name"]
      - type: move
        from: attributes.stream
        to: attributes["log.iostream"]
      - type: move
        from: attributes.log
        to: body
      - type: json_parser
        id: structured-body
        parse_from: body
        parse_to: attributes
        if: 'body matches "^\\s*\\{"'
        on_error: send
  journald/host:
    directory: /var/log/journal
    units:
      - docker.service
      - han-stack@production.service
      - han-secrets@production.service
      - han-chat-docker-firewall.service
      - certbot.service
      - fail2ban.service
    priority: info
    start_at: end
    storage: file_storage

processors:
  memory_limiter:
    check_interval: 1s
    limit_mib: 192
    spike_limit_mib: 48
  resource/common:
    attributes:
      - {key: service.namespace, value: han-chat, action: upsert}
      - {key: deployment.environment, value: "${env:APP_ENV}", action: upsert}
      - {key: service.version, value: "${env:RELEASE_VERSION}", action: upsert}
      - {key: host.name, value: "${env:HOST_NAME}", action: upsert}
  transform/journal:
    error_mode: ignore
    log_statements:
      - context: log
        statements:
          - set(resource.attributes["service.name"], attributes["_SYSTEMD_UNIT"]) where resource.attributes["service.name"] == nil and attributes["_SYSTEMD_UNIT"] != nil
          - set(attributes["event.source"], "journald") where attributes["_SYSTEMD_UNIT"] != nil
          - set(attributes["event.source"], "docker-json-file") where attributes["_SYSTEMD_UNIT"] == nil
          - set(attributes["route.class"], "api") where resource.attributes["service.name"] == "nginx" and IsMatch(attributes["uri"], "^/api/")
          - set(attributes["route.class"], "auth") where resource.attributes["service.name"] == "nginx" and IsMatch(attributes["uri"], "^/auth/")
          - set(attributes["route.class"], "bitrix") where resource.attributes["service.name"] == "nginx" and IsMatch(attributes["uri"], "^/bitrix/")
          - set(attributes["route.class"], "callbacks") where resource.attributes["service.name"] == "nginx" and IsMatch(attributes["uri"], "^/callbacks/")
          - set(attributes["route.class"], "static") where resource.attributes["service.name"] == "nginx" and attributes["route.class"] == nil
          - replace_pattern(body, "(?i)(Bearer|Basic)\\s+[A-Za-z0-9._~+/=-]+", "$$1 [REDACTED]") where IsString(body)
          - replace_pattern(body, "(?i)(token|secret|password|code)=([^&\\s]+)", "$$1=[REDACTED]") where IsString(body)
          - set(body, "nginx.access") where resource.attributes["service.name"] == "nginx" and attributes["log.iostream"] == "stdout"
          - set(body, "keycloak.event") where resource.attributes["service.name"] == "keycloak" and attributes["log.iostream"] == "stdout"
  attributes/redact:
    actions:
      - {key: authorization, action: delete}
      - {key: http.request.header.authorization, action: delete}
      - {key: http.request.header.cookie, action: delete}
      - {key: http.response.header.set-cookie, action: delete}
      - {key: url.query, action: delete}
      - {key: url.full, action: delete}
      - {key: http.target, action: delete}
      - {key: http.request.body, action: delete}
      - {key: db.statement, action: delete}
      - {key: message, action: delete}
      - {key: payload, action: delete}
      - {key: user.phone, action: delete}
      - {key: user.email, action: delete}
      - {key: remote_addr, action: delete}
      - {key: user_agent, action: delete}
      - {key: uri, action: delete}
  filter/allowlist:
    error_mode: ignore
    logs:
      log_record:
        - 'attributes["_SYSTEMD_UNIT"] == nil and resource.attributes["service.name"] != "nginx" and resource.attributes["service.name"] != "keycloak" and resource.attributes["service.name"] != "redis"'
        - 'resource.attributes["service.name"] == "otel-collector" or resource.attributes["service.name"] == "otel-host-collector"'
  filter/noise:
    error_mode: ignore
    logs:
      log_record:
        - 'resource.attributes["service.name"] == "nginx" and severity_number < SEVERITY_NUMBER_WARN and IsMatch(body, "(/health/live|/nginx-health/live|/.well-known/acme-challenge/)")'
  batch:
    timeout: 5s
    send_batch_size: 512
    send_batch_max_size: 1024

exporters:
  otlp/remote:
    endpoint: "${env:OTEL_REMOTE_ENDPOINT}"
    headers:
      authorization: ${file:/run/han-chat/secrets/OTEL_REMOTE_AUTH_HEADER}
    tls:
      insecure: "${env:OTEL_REMOTE_TLS_INSECURE}"
    sending_queue:
      enabled: true
      queue_size: 5000
      storage: file_storage
    retry_on_failure:
      enabled: true
      initial_interval: 5s
      max_interval: 30s
      max_elapsed_time: 0s

service:
  extensions: [file_storage]
  pipelines:
    logs:
      receivers: [filelog/docker, journald/host]
      processors:
        [memory_limiter, resource/common, filter/allowlist, filter/noise, transform/journal, attributes/redact, batch]
      exporters: [otlp/remote]
  telemetry:
    logs:
      level: error
    metrics:
      level: none