feat(orchestrator): add optional promtail log shipper#1044
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May 21, 2026 14:14
Opt-in via PROMTAIL_LOKI_PUSH_URL, PROMTAIL_LOKI_PUSH_TOKEN, and PROMTAIL_INSTANCE. When all three are set, the orchestrator writes promtail.yml next to docker-compose.yml and adds a pinned grafana/promtail service that tails /asb-data/logs/*.log read-only and pushes them to the configured Loki endpoint with job/host/component labels. The bearer token is only written to promtail.yml, never to docker-compose.yml.
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Opt-in promtail container that tails /asb-data/logs/*.log and pushes them to a Loki endpoint. Enabled when PROMTAIL_LOKI_PUSH_URL, PROMTAIL_LOKI_PUSH_TOKEN, and PROMTAIL_INSTANCE are all set when running the orchestrator; otherwise behaviour is unchanged. Bearer token lives only in the generated promtail.yml, not docker-compose.yml.