Exporters: - postgres_exporter: DB connections, transactions, cache hit ratio, query stats - node_exporter: host CPU, memory, disk, network - cAdvisor: per-container CPU and memory usage PostgreSQL: - Enable pg_stat_statements for query-level performance tracking - Track index scans vs sequential scans, cache hit ratio Dashboard (service-health.json): - DB: connections, size, transactions/s, slow queries, cache hit ratio, index usage - Host: disk gauge, CPU, memory, network I/O, disk I/O - BRouter: request latency p50/p95/p99, container CPU + memory - All containers: CPU and memory comparison Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
44 lines
1.9 KiB
Markdown
44 lines
1.9 KiB
Markdown
## Why
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Secrets are scattered across GitHub Actions secrets with no version control,
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no audit trail, and painful manual management (the Grafana password hash saga).
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The CD pipeline is monolithic — changing a Grafana dashboard rebuilds both app
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Docker images. And Grafana authentication requires managing bcrypt hashes and
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basic auth layers.
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## What Changes
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- **SOPS + age for secrets**: Encrypt a `.env.production` file in the repo.
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CD decrypts at deploy time with a single age private key stored as one
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GitHub secret. All other secrets move from GitHub Actions secrets into the
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encrypted file — version-controlled, diffable, auditable.
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- **Split CD into apps vs infra**: Two workflows triggered by path filters.
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App changes (apps/, packages/) build Docker images and deploy. Infra changes
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(infrastructure/) copy configs and restart services. No unnecessary rebuilds.
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- **GitHub OAuth for Grafana**: Replace Caddy basic auth + Grafana login with
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GitHub OAuth. One login, restricted to the trails-cool GitHub org. Remove
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GRAFANA_PASSWORD_HASH, GRAFANA_USER, GRAFANA_PASSWORD secrets entirely.
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## Capabilities
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### New Capabilities
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- `secret-management`: SOPS + age encrypted secrets in the repository with
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CD decryption
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### Modified Capabilities
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- `infrastructure`: Split CD workflows, GitHub OAuth for Grafana, remove
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Caddy basic auth for Grafana
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## Impact
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- **Files**: New `.env.production.enc` (encrypted), `.sops.yaml` config,
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split `cd-apps.yml` and `cd-infra.yml` workflows, updated docker-compose.yml
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and Caddyfile
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- **Dependencies**: `sops` and `age` CLI tools in CD runner (install step)
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- **GitHub secrets**: Reduced from ~10 secrets to 2 (AGE_SECRET_KEY +
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DEPLOY_SSH_KEY). Everything else moves into the encrypted env file.
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- **Grafana**: GitHub OAuth app registration needed (Client ID + Secret go
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into the SOPS-encrypted file)
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- **Caddy**: Remove basic auth block for grafana.internal, just proxy through
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