jakman85andClaude Opus 4.8
d9a80e5350
Prep only — nothing deployed; running cluster untouched. Reconciliation graph (operator-approved Option A): author clusters/dev/rollout/ = 4 per-component Flux Kustomizations (kyverno->cilium->longhorn->monitoring, monitoring dependsOn longhorn). Dev overlay $patch:delete's the monolithic base platform/apps and adds ./rollout, so only the no-secret tier reconciles; the secret-blocked components are simply not created until hand-offs arrive. The no-secret tier carries no SOPS content, so it needs no sops-age key. prod is untouched (still builds the monolith). Convergence path coded in (delete rollout/ + the two deletes) — R-ENV-02 divergence flagged for architect review. Component hardening via cluster-vars (prod keeps strict posture): - KYVERNO_VALIDATION_ACTION Enforce->Audit(dev), _WEBHOOK_FAILURE_POLICY Fail->Ignore(dev), _ADMISSION_REPLICAS 3->1(dev); webhook namespaceSelector excludes system+platform namespaces. - MONITORING_STORAGE_CLASS var; GRAFANA_ADMIN_SECRET var (dev ''=chart default); Alertmanager SMTP/secret deferred to Phase-4 with verbatim re-enable markers. Cilium parity verified against the live CNI (no-op adopt). Validated: kubectl kustomize dev/prod/all-components, envsubst->YAML parse, make -C ci gate PASS. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
93 lines
3.1 KiB
YAML
93 lines
3.1 KiB
YAML
---
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# Loki — log aggregation (docs/10). Serves R-OBS-01. PVC size is an overlay knob (R-ENV-02).
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#
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# DEV-SCOPED for the ~22 GiB ceiling. Deployment mode is SingleBinary (one pod, filesystem
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# storage) — the scalable read/write/backend split is prod-only. CRITICAL RAM TRIM: the grafana
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# loki chart's default memcached caches (chunksCache/resultsCache) request ~8-9 GiB EACH; both are
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# disabled here. The nginx `gateway`, self-monitoring, and the canary/test hooks are disabled too.
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#
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# Retention is enforced by the COMPACTOR (retention_enabled: true) — a retention_period alone does
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# nothing (docs/10, and a known-gotcha carried from the legacy stack).
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apiVersion: helm.toolkit.fluxcd.io/v2
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kind: HelmRelease
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metadata:
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name: loki
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namespace: monitoring
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spec:
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interval: 30m
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chart:
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spec:
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chart: loki
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version: ">=6.0.0 <7.0.0" # TODO(WS-OBS): pin at bring-up; Renovate maintains
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sourceRef:
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kind: HelmRepository
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name: grafana
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namespace: monitoring
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install:
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remediation:
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retries: 3
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upgrade:
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remediation:
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retries: 3
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values:
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deploymentMode: SingleBinary
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loki:
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auth_enabled: false
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commonConfig:
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replication_factor: 1 # single binary — no ring replication
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storage:
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type: filesystem
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schemaConfig:
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configs:
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- from: "2024-04-01"
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store: tsdb
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object_store: filesystem
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schema: v13
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index:
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prefix: loki_index_
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period: 24h
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limits_config:
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# NOTE: Loki's LOG retention has no dedicated cluster-vars knob (only the 3 monitoring vars
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# exist). Held to a dev-friendly 72h to mirror the dev metrics retention; promote to an
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# overlay knob if per-env log retention is ever needed. See README / report.
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retention_period: 72h
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compactor:
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retention_enabled: true # REQUIRED — a period alone does not delete (docs/10)
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delete_request_store: filesystem
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singleBinary:
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replicas: 1
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persistence:
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enabled: true
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storageClass: ${MONITORING_STORAGE_CLASS} # replicated tier (ADR-0003); cluster-vars knob
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size: ${MONITORING_LOKI_PVC_SIZE} # overlay knob (dev 5Gi / prod large)
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resources:
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requests:
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cpu: 100m
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memory: 192Mi
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limits:
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memory: 512Mi
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# Not used in SingleBinary mode — pinned to 0 so a chart default can't spin up extra pods.
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backend:
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replicas: 0
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read:
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replicas: 0
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write:
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replicas: 0
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# --- RAM trims: kill the memory-hungry / non-essential-for-dev pieces ---
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chunksCache:
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enabled: false # default memcached requests ~8-9Gi — must stay off in dev
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resultsCache:
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enabled: false
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gateway:
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enabled: false # no nginx front door needed for a single binary in-cluster
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lokiCanary:
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enabled: false
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test:
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enabled: false
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# Alloy ships logs here (in-cluster service DNS, no gateway):
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# http://loki.monitoring.svc.cluster.local:3100/loki/api/v1/push
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