unkinben
c39af2f9c3
Rework the logging pipeline around a durable message bus so logs survive a ClickHouse outage, can be replayed after a bad transform, and fan out to multiple independent consumers. Add long-term raw-log backup to S3. Topology becomes edge -> JetStream -> consumers -> sinks: - Dedicated JetStream NATS cluster (3 replicas, file storage) in the logging namespace. Deliberately separate from app messaging (streamstack) for blast-radius isolation. Stream LOGS (subjects logs.>, retention=limits, 40GiB / 72h) is the outage buffer; durable consumers give independent offsets. - Edge publishers (thin): the k8s DaemonSet and a new VM-ingest Deployment (HTTP NDJSON front door behind the logs-ingest Gateway) publish into JetStream (logs.k8s.<ns>.<container> / logs.vm.<host>). No parsing on the edge. - Transform tier (StatefulSet): pulls the whole stream via the durable `transform` consumer, routes by subject, shapes, and remains the sole ClickHouse writer. Its disk buffer shrinks (JetStream is the outage buffer). - Archiver (Deployment): its OWN durable `archiver` consumer (independent offsets — archive lag never affects the ClickHouse path) writes RAW, pre-transform events to a Ceph RGW S3 bucket (cephrgw-operator ObjectStoreUser + Bucket + BucketAccess) as gzipped NDJSON keyed by raw/<subject>/YYYY/MM/DD/. Default subject filter is Vault audit (logs.k8s.vault.>), configurable. Auth: distinct NATS users (producer publish-only, consumer pull+ack, admin for the stream/consumer bootstrap Job) with passwords from Vault (nats-auth Secret); S3 creds from the BucketAccess Secret. Streams/consumers are provisioned by an idempotent PostSync bootstrap Job. Add local kubeconform schemas for the ceph.unkin.net CRDs (datreeio lacks them) and extend the vector-test CI to cover the agent, VM-ingest and archiver configs. Verified end-to-end locally: NATS ACLs, vector JetStream publish, and durable-consumer pull+ack (at-least-once) all work. Claude-Session: https://claude.ai/code/session_015ur3i7D2azsMAWTSVABApv
44 lines
1.2 KiB
YAML
44 lines
1.2 KiB
YAML
---
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# Vector EDGE agent pipeline (DaemonSet) — thin publisher, single source of
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# truth. Mounted via existingConfigMaps (NOT the chart's customConfig, whose
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# Helm `tpl` pass collides with Vector's own {{ }} / ${ } syntax). Tails all pod
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# logs, attaches only routing tokens, publishes to JetStream. No parsing.
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data_dir: /vector-data-dir
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api:
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enabled: false
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sources:
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kubernetes_logs:
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type: kubernetes_logs
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transforms:
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# Routing metadata only: NATS-subject-safe namespace + container tokens.
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keymeta:
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type: remap
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inputs:
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- kubernetes_logs
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source: |
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ns = to_string(.kubernetes.pod_namespace || "unknown") ?? "unknown"
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.ns_token = replace(ns, r'[^a-zA-Z0-9_-]', "_")
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cont = to_string(.kubernetes.container_name || "unknown") ?? "unknown"
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.cont_token = replace(cont, r'[^a-zA-Z0-9_-]', "_")
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sinks:
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to_jetstream:
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type: nats
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inputs:
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- keymeta
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url: nats://nats.logging.svc.cluster.local:4222
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connection_name: vector-agent
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subject: "logs.k8s.{{ ns_token }}.{{ cont_token }}"
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jetstream:
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enabled: true
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auth:
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strategy: user_password
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user_password:
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user: log-producer
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password: ${NATS_PRODUCER_PASSWORD}
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encoding:
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codec: json
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