plugin_attr:
  prometheus:                               # Plugin: prometheus attributes
    export_uri: /apisix/prometheus/metrics  # Set the URI for the Prometheus metrics endpoint.
    metric_prefix: apisix_                  # Set the prefix for Prometheus metrics generated by APISIX.
    enable_export_server: true              # Enable the Prometheus export server.
    export_addr:                            # Set the address for the Prometheus export server.
      ip: 127.0.0.1                         # Set the IP.
      port: 9091                            # Set the port.
    # metrics:                              # Create extra labels for metrics.
    #  http_status:                         # These metrics will be prefixed with `apisix_`.
    #    extra_labels:                      # Set the extra labels for http_status metrics.  
    #      - upstream_addr: $upstream_addr
    #      - status: $upstream_status
    #  http_latency:                        
    #    extra_labels:                      # Set the extra labels for http_latency metrics.
    #      - upstream_addr: $upstream_addr
    #  bandwidth:
    #    extra_labels:                      # Set the extra labels for bandwidth metrics.
    #      - upstream_addr: $upstream_addr
    # default_buckets:                      # Set the default buckets for the `http_latency` metrics histogram.
    #   - 10
    #   - 50
    #   - 100
    #   - 200
    #   - 500
    #   - 1000
    #   - 2000
    #   - 5000
    #   - 10000
    #   - 30000
    #   - 60000
    #   - 500
    # expire: 0               # expiration time in seconds after metrics have become inactive
                              # 0 means the metrics will not expire