refactor(infra): rename pools — always-on→services, ci-build→ci-training
Rename Terraform resources and Scaleway pool names for clarity:
- always_on → services (runs postgres, redis, microservices)
- ci_build → ci_training (L40S for hyperopt + training jobs)
Includes:
- moved{} blocks to prevent Terraform state destroy+recreate
- Output renames + new outputs for ci-compile and ci-training pools
- node_selector_overwrite_allowed in runner config (enables per-job
KUBERNETES_NODE_SELECTOR_* overrides for L4/L40S routing)
MIGRATION (after terragrunt apply):
1. terragrunt apply — recreates pools with new names
2. Update K8s manifests: always-on→services in nodeSelectors
(postgres, redis, questdb, tailscale, idle-reaper, postgres-init)
3. Update .gitlab-ci.yml: ci-build→ci-training in training jobs
4. Update runner-values.yaml: default pool ci-build→ci-compile
5. helm upgrade gitlab-runner + kubectl apply changed manifests
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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