Grafana Fleet Management + Alloy Configuration

Docs: https://grafana.com/docs/grafana-cloud/send-data/fleet-management/

Remote pipeline distribution to Alloy collectors via OpAMP — author once, target with matchers, hot-apply (no restart).

Prerequisites

• Grafana Cloud stack with Fleet Management enabled
• API token with Fleet Management access (Authorization: Bearer <STACK_ID>:<TOKEN>)
• Alloy ≥ 1.0 installed on the targets (standalone or via grafana/alloy Helm chart)
• alloy CLI locally for alloy fmt syntax validation

Concepts

• Collector — Alloy instance with unique ID + attributes
• Pipeline — named Alloy River config stored in Fleet Management
• Matcher — selector mapping a pipeline to collectors by attribute
• Attributes — key/value labels on a collector (env, team, region)

Common Workflows

1. Author + validate + deploy a pipeline

# 1. Save the pipeline to a local file (lint catches typos before remote)
cat > pipeline.alloy <<'EOF'
prometheus.scrape "default" {
  targets    = []
  forward_to = [prometheus.remote_write.grafana_cloud.receiver]
  scrape_interval = "60s"
}

prometheus.remote_write "grafana_cloud" {
  endpoint {
    url = "https://prometheus-prod-01-eu-west-0.grafana.net/api/prom/push"
    basic_auth {
      username = "<METRICS_USERNAME>"
      password = env("GRAFANA_CLOUD_API_KEY")
    }
  }
}
EOF

# 2. Validate syntax LOCALLY before sending to Fleet Management
alloy fmt pipeline.alloy            # rewrites in place or errors with line number
alloy validate pipeline.alloy       # full semantic check (newer Alloy releases)

# 3. Create the pipeline via API (see references/api.md for the payload schema)
BASE=https://fleet-management-prod-us-east-0.grafana.net
TOKEN=<STACK_ID>:<API_TOKEN>
PAYLOAD=$(jq -n --rawfile c pipeline.alloy '{
  name:"k8s-metrics", contents:$c,
  matchers:[{name:"env",value:"production",type:"EQUAL"}]
}')
curl -s -X POST "$BASE/pipeline.v1.PipelineService/CreatePipeline" \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  -d "$PAYLOAD" | jq

# 4. Verify it rolled out — every targeted collector should report APPLIED within 1-2 polls
curl -s -X POST "$BASE/collector.v1.CollectorService/ListCollectors" \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" -d '{}' \
  | jq '.collectors[] | select(.attributes[]?.value=="production")
        | {name, remoteConfigStatus}'
# Expect every row: remoteConfigStatus == "REMOTE_CONFIG_STATUS_APPLIED"

2. Troubleshoot a REMOTE_CONFIG_STATUS_FAILED collector

# 1. Find failed collectors and surface the error message
curl -s -X POST "$BASE/collector.v1.CollectorService/ListCollectors" \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" -d '{}' \
  | jq '.collectors[] | select(.remoteConfigStatus=="REMOTE_CONFIG_STATUS_FAILED")
        | {name, msg:.remoteConfigStatusMessage}'

# 2. Re-validate the offending pipeline locally
alloy fmt pipeline.alloy

# 3. Inspect Alloy directly — UI at port 12345 shows per-component health
#    http://<COLLECTOR_HOST>:12345 → Graph / Components / Clustering tabs
kubectl -n monitoring logs -l app.kubernetes.io/name=alloy --tail=100 | grep -iE 'remote|error'

# 4. After fixing + re-pushing, re-list collectors and confirm the row flips to APPLIED.

Failure-message decoder table: references/api.md.

3. Onboard a new Alloy with the bootstrap block

The bootstrap remotecfg block is the only local config required:

remotecfg {
  url = "https://<FLEET_MANAGEMENT_HOST>"
  basic_auth { username = "<STACK_ID>"; password = env("GRAFANA_CLOUD_API_KEY") }
  poll_frequency = "1m"
  attributes = { "env" = env("ENVIRONMENT"), "team" = "platform" }
}

# Verify after start
curl -s http://localhost:12345/api/v0/web/components \
  | jq '.[] | select(.id=="remotecfg") | {id, health:.health.state}'
# health.state == "healthy"

Full bootstrap (standalone + Helm) + Assistant tool list: references/bootstrap.md.

Resources

• Fleet Management docs
• Alloy components
• OpAMP spec