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feat: add Micrometer Prometheus metrics to server
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Adds micrometer-registry-prometheus and exposes /api/v1/prometheus
endpoint (unauthenticated for scraping). ServerMetrics component
provides business metrics beyond default JVM/HTTP:

Gauges: agents by state, SSE connections, buffer depths (execution,
processor, log, metrics), accumulator pending exchanges.

Counters: ingestion drops (buffer_full, no_agent, no_identity),
agent transitions (went_stale, went_dead, recovered), deployment
outcomes (running, failed, degraded), auth failures (invalid_token,
revoked, oidc_rejected).

Timers: ClickHouse flush duration by type, deployment duration.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
hsiegeln
2026-04-12 18:23:27 +02:00
parent caaa1ab0cc
commit 6bf7175a6c
12 changed files with 261 additions and 11 deletions
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CLAUDE.md
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@@ -110,6 +110,9 @@ java -jar cameleer3-server-app/target/cameleer3-server-app-1.0-SNAPSHOT.jar
- `PrometheusLabelBuilder` — generates Prometheus Docker labels (`prometheus.scrape/path/port`) per runtime type for `docker_sd_configs` auto-discovery
- `DisabledRuntimeOrchestrator` — no-op when runtime not enabled
**metrics/** — Prometheus observability
- `ServerMetrics` — centralized business metrics: gauges (agents by state, SSE connections, buffer depths), counters (ingestion drops, agent transitions, deployment outcomes, auth failures), timers (flush duration, deployment duration). Exposed via `/api/v1/prometheus`.
**storage/** — PostgreSQL repositories (JdbcTemplate)
- `PostgresAppRepository`, `PostgresAppVersionRepository`, `PostgresEnvironmentRepository`
- `PostgresDeploymentRepository` — includes JSONB replica_states, deploy_stage, findByContainerId
@@ -300,7 +303,7 @@ In SaaS mode, each tenant's server and its deployed apps are isolated at the Doc
<!-- gitnexus:start -->
# GitNexus — Code Intelligence
This project is indexed by GitNexus as **cameleer3-server** (5968 symbols, 15141 relationships, 300 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
This project is indexed by GitNexus as **cameleer3-server** (5987 symbols, 15177 relationships, 300 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
> If any GitNexus tool warns the index is stale, run `npx gitnexus analyze` in terminal first.