Infra & metrics
Thanos
open source / community (CNCF)
Bolt-on HA + unlimited object-storage retention + global query for an existing Prometheus fleet via a sidecar — the cheapest "add long-term storage without changing collection."
- Category
- Infra & metrics
- License
- Open source
- Deployment
- Self-hosted
- Cost
- Free
- Free tier
- Yes
- Self-host effort
- Heavy
- Maturity
- Established
- Popularity
- ≈14k GitHub stars
The catch
The sidecar-per-Prometheus model and many moving parts (store, compactor, querier, receiver) make it operationally fiddly, and query latency over object storage can disappoint.
Monitors
MetricsServersK8sCloud
Capabilities
API
Built for
SRE / DevOpsEnterprise