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Extend glossary with storage floors, source of truth, and linkable anchors. Fix broken links, pose frame drift, rsync/offload wording, and README tone. Add docs/improvement audit records and live demo links in design journey.
33 lines
1.3 KiB
Markdown
33 lines
1.3 KiB
Markdown
# Terraform — simulation environment ([T4](../../../docs/00-glossary.md#t4--dev))
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Sim fleet + observability on k3d. Cluster from [`../../ansible/sim-cluster.yml`](../../ansible/sim-cluster.yml). Executable [T4](../../../docs/00-glossary.md#t4--dev) miniature ([06 — Environments](../../../docs/06-environments.md)).
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| Resource | Purpose |
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| --- | --- |
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| StatefulSet `drone` × `drone_count` | Virtual drones; pod names → `DRONE_ID`; shared `/data` lake |
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| Deployment `exporter` | Prometheus exporter reading lake with DuckDB |
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| Deployment `explorer` + NodePort 30088 | Partition tree + read-only SQL (prototype live mode) |
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| Deployment `prometheus` + NodePort 30990 | Scrapes exporter |
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| Deployment `grafana` + NodePort 30300 | Dashboard JSON from ConfigMap |
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## Usage
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```bash
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ansible-playbook ../../ansible/sim-cluster.yml # once: cluster + image
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terraform init
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terraform apply
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terraform output # URLs
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```
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Scale without YAML edits:
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```bash
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terraform apply -var drone_count=9 -var speedup=4
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```
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## Notes
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- `image_pull_policy = "Never"` — image imported by Ansible (`k3d image import`); no registry pull. Air-gap mirror.
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- Pod name → identity (StatefulSet ordinal). `kubectl delete pod` = power cycle: new process, same identity, new flight ID.
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- Local state only — cluster disposable.
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