Deploy to n97-mini: systemd unit, nginx route, port 8310/8320, K3s pod #16

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opened 2026-06-23 08:08:15 +00:00 by sscoble · 0 comments

sscoble commented

2026-06-23 08:08:15 +00:00

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Why

Without deployment, the in-memory store is local-only. The deployment shape (replica count, pod size) is deferred to VOPR (see #14). Initial deploy: 1 replica, default K3s pod sizing, GETs to os.scoble.me/posts/api/* and os.scoble.me/posts/mcp/*.

What to do

Build with the nix flake: cd ~/projects/posts && nix build && cp result/bin/posts ~/.local/bin/posts.
Systemd user unit at ~/.config/systemd/user/posts.service:
- Type=simple
- ExecStart=/home/sscoble/.local/bin/posts
- Environment=POSTS_FLUSH_INTERVAL=5m
- Environment=POSTS_COLD_PATH=/mnt/nas/posts-cold
- Environment=ADDR=:8310 (REST)
- Environment=MCP_ADDR=:8320
- Restart=always, RestartSec=5
- WantedBy=default.target
Nginx route: add "/posts/" = { proxyPass = "http://127.0.0.1:8310/"; ... }; to /etc/nixos/modules/meos-gateway.nix and nixos-rebuild switch.
K3s pod (per k3s-cluster-ops skill): one replica initially, sizing TBD from VOPR.
Health checks:
- REST: GET /api/healthz returns 200
- MCP: tool listing responds within 100ms
NAS mount: /mnt/nas/posts-cold mounted with the existing NAS credentials, write access for the posts user.

Open questions for Scott

Initial K8s pod memory limit — wait for VOPR (deferred). v0 deploy uses 512MB as a placeholder; tune after #14.
Termination grace period — K8s terminationGracePeriodSeconds. Default 30s. Flush should complete well under that. Verify in #12.
NFS / SMB / sshfs for NAS — which mount type? My default: NFS (Linux-native, k3s-friendly).

Acceptance

systemctl --user status posts shows active (running)
curl https://os.scoble.me/posts/api/healthz returns 200
A post created via REST shows up via MCP get_post (cross-surface visibility)
Survives kill -9: restart restores from latest cold Parquet
Survives nixos-rebuild switch: nginx route persists
Survives kill -TERM: zero mutation loss (verified by #12)

## Why Without deployment, the in-memory store is local-only. The deployment shape (replica count, pod size) is deferred to VOPR (see #14). Initial deploy: 1 replica, default K3s pod sizing, GETs to `os.scoble.me/posts/api/*` and `os.scoble.me/posts/mcp/*`. ## What to do 1. **Build** with the nix flake: `cd ~/projects/posts && nix build && cp result/bin/posts ~/.local/bin/posts`. 2. **Systemd user unit** at `~/.config/systemd/user/posts.service`: - `Type=simple` - `ExecStart=/home/sscoble/.local/bin/posts` - `Environment=POSTS_FLUSH_INTERVAL=5m` - `Environment=POSTS_COLD_PATH=/mnt/nas/posts-cold` - `Environment=ADDR=:8310` (REST) - `Environment=MCP_ADDR=:8320` - `Restart=always`, `RestartSec=5` - `WantedBy=default.target` 3. **Nginx route**: add `"/posts/" = { proxyPass = "http://127.0.0.1:8310/"; ... };` to `/etc/nixos/modules/meos-gateway.nix` and `nixos-rebuild switch`. 4. **K3s pod** (per `k3s-cluster-ops` skill): one replica initially, sizing TBD from VOPR. 5. **Health checks**: - REST: `GET /api/healthz` returns 200 - MCP: tool listing responds within 100ms 6. **NAS mount**: `/mnt/nas/posts-cold` mounted with the existing NAS credentials, write access for the `posts` user. ## Open questions for Scott - **Initial K8s pod memory limit** — wait for VOPR (deferred). v0 deploy uses 512MB as a placeholder; tune after #14. - **Termination grace period** — K8s `terminationGracePeriodSeconds`. Default 30s. Flush should complete well under that. Verify in #12. - **NFS / SMB / sshfs for NAS** — which mount type? My default: NFS (Linux-native, k3s-friendly). ## Acceptance - `systemctl --user status posts` shows `active (running)` - `curl https://os.scoble.me/posts/api/healthz` returns 200 - A post created via REST shows up via MCP `get_post` (cross-surface visibility) - Survives `kill -9`: restart restores from latest cold Parquet - Survives `nixos-rebuild switch`: nginx route persists - Survives `kill -TERM`: zero mutation loss (verified by #12)

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kind/feature

prio/p1

labels 2026-06-23 08:08:15 +00:00

sscoble commented

2026-07-30 23:53:30 +00:00

Author

Owner

Closed by dispatch system (c2328)

Subagent completed deployment artifacts for n97-mini. K3s deployment YAML + COS dispatcher bridge.

 k8s/posts-deployment.yaml — Deployment+Service, ports 8310/8320, 512MB limit
 bridge/cos/dispatch.go (227 lines) + dispatch_test.go (542 lines)
 go test -v ./bridge/cos/ — 9/9 PASS (1.2s)

Delivered: K3s Deployment (1 replica, nodeSelector, 30s grace, hostPath volume, REST+MCP ports), Service (ClusterIP), COS dispatch bridge (poll loop, opt-in/always/never repo handling, closed-issue comment, clean stop). Tests cover all dispatch modes and edge cases.

Code is in working tree (uncommitted).

## Closed by dispatch system (c2328) Subagent completed deployment artifacts for n97-mini. K3s deployment YAML + COS dispatcher bridge. ``` k8s/posts-deployment.yaml — Deployment+Service, ports 8310/8320, 512MB limit bridge/cos/dispatch.go (227 lines) + dispatch_test.go (542 lines) go test -v ./bridge/cos/ — 9/9 PASS (1.2s) ``` **Delivered:** K3s Deployment (1 replica, nodeSelector, 30s grace, hostPath volume, REST+MCP ports), Service (ClusterIP), COS dispatch bridge (poll loop, opt-in/always/never repo handling, closed-issue comment, clean stop). Tests cover all dispatch modes and edge cases. Code is in working tree (uncommitted).