将 Grafana Agent Static 迁移到 Grafana Alloy

server:
  log_level: info

metrics:
  global:
    scrape_interval: 15s
    remote_write:
      - url: https://prometheus-us-central1.grafana.net/api/prom/push
        basic_auth:
          username: USERNAME
          password: PASSWORD
  configs:
    - name: test
      host_filter: false
      scrape_configs:
        - job_name: local-agent
          static_configs:
            - targets: ['127.0.0.1:12345']
              labels:
                cluster: 'localhost'

logs:
  global:
    file_watch_config:
      min_poll_frequency: 1s
      max_poll_frequency: 5s
  positions_directory: /var/lib/agent/data-agent
  configs:
    - name: varlogs
      scrape_configs:
        - job_name: varlogs
          static_configs:
            - targets:
              - localhost
              labels:
                job: varlogs
                host: mylocalhost
                __path__: /var/log/*.log
          pipeline_stages:
            - match:
                selector: '{filename="/var/log/*.log"}'
                stages:
                - drop:
                    expression: '^[^0-9]{4}'
                - regex:
                    expression: '^(?P<timestamp>\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}) \[(?P<level>[[:alpha:]]+)\] (?:\d+)\#(?:\d+): \*(?:\d+) (?P<message>.+)$'
                - pack:
                    labels:
                      - level
      clients:
        - url: https://USER_ID:API_KEY@logs-prod3.grafana.net/loki/api/v1/push

traces:
  configs:
    - name: tempo
      receivers:
        otlp:
          protocols:
            grpc:
            http:
      batch:
        send_batch_size: 10000
        timeout: 20s
      remote_write:
        - endpoint: tempo-us-central1.grafana.net:443
          basic_auth:
            username: USERNAME
            password: PASSWORD

alloy convert --source-format=static --output=<OUTPUT_CONFIG_PATH> <INPUT_CONFIG_PATH>

prometheus.scrape "metrics_test_local_agent" {
    targets = [{
        __address__ = "127.0.0.1:12345",
        cluster     = "localhost",
    }]
    forward_to      = [prometheus.remote_write.metrics_test.receiver]
    job_name        = "local-agent"
    scrape_interval = "15s"
}

prometheus.remote_write "metrics_test" {
    endpoint {
        name = "test-4dec64"
        url  = "https://prometheus-us-central1.grafana.net/api/prom/push"

        basic_auth {
            username = "<USERNAME>"
            password = "<PASSWORD>"
        }

        queue_config { }

        metadata_config { }
    }
}

local.file_match "logs_varlogs_varlogs" {
    path_targets = [{
        __address__ = "localhost",
        __path__    = "/var/log/*.log",
        host        = "mylocalhost",
        job         = "varlogs",
    }]
}

loki.process "logs_varlogs_varlogs" {
    forward_to = [loki.write.logs_varlogs.receiver]

    stage.match {
        selector = "{filename=\"/var/log/*.log\"}"

        stage.drop {
            expression = "^[^0-9]{4}"
        }

        stage.regex {
            expression = "^(?P<timestamp>\\d{4}/\\d{2}/\\d{2} \\d{2}:\\d{2}:\\d{2}) \\[(?P<level>[[:alpha:]]+)\\] (?:\\d+)\\#(?:\\d+): \\*(?:\\d+) (?P<message>.+)$"
        }

        stage.pack {
            labels           = ["level"]
            ingest_timestamp = false
        }
    }
}

loki.source.file "logs_varlogs_varlogs" {
    targets    = local.file_match.logs_varlogs_varlogs.targets
    forward_to = [loki.process.logs_varlogs_varlogs.receiver]

    file_watch {
        min_poll_frequency = "1s"
        max_poll_frequency = "5s"
    }
    legacy_positions_file = "/var/lib/agent/data-agent/varlogs.yml"
}

loki.write "logs_varlogs" {
    endpoint {
        url = "https://USER_ID:API_KEY@logs-prod3.grafana.net/loki/api/v1/push"
    }
    external_labels = {}
}

otelcol.receiver.otlp "default" {
    grpc {
        include_metadata = true
    }

    http {
        include_metadata = true
    }

    output {
        metrics = []
        logs    = []
        traces  = [otelcol.processor.batch.default.input]
    }
}

otelcol.processor.batch "default" {
    timeout         = "20s"
    send_batch_size = 10000

    output {
        metrics = []
        logs    = []
        traces  = [otelcol.exporter.otlp.default_0.input]
    }
}

otelcol.exporter.otlp "default_0" {
    retry_on_failure {
        max_elapsed_time = "1m0s"
    }

    client {
        endpoint = "tempo-us-central1.grafana.net:443"
        headers  = {
            authorization = "Basic VVNFUk5BTUU6UEFTU1dPUkQ=",
        }
    }
}

alloy convert --source-format=static --extra-args="-enable-features=integrations-next" --output=<OUTPUT_CONFIG_PATH> <INPUT_CONFIG_PATH>