deploy: track the k3s manifest and relax the probes

Liveness and readiness timeouts go from 1s to 5s, and a startup probe
covers OIDC discovery. Liveness only hits /healthz, so a database or
network blip no longer restarts the pod.

.gitignore

@@ -1,2 +1,4 @@
 *.env
-deploy/k8s/
+# Cluster manifests stay out of the repo, except the LMR deployment itself.
+deploy/k8s/*
+!deploy/k8s/lmr.yaml

README.md

@@ -150,6 +150,25 @@ Docker/systemd, pass it with `env_file` / `EnvironmentFile` instead.
 | `GET /healthz` | Liveness — process is up |
 | `GET /readyz` | Readiness — database reachable (pings the pool) |
 
+## Deploy
+
+A push to `master` runs the Woodpecker pipeline in `.woodpecker.yml`. It builds
+the root `Dockerfile` and pushes `registry.govekar.net/lovrog05/localmodelroutex`
+with the tags `latest` and the commit SHA.
+
+The gateway runs on k3s from [`deploy/k8s/lmr.yaml`](deploy/k8s/lmr.yaml). The
+manifest expects `configmap/lmr-config`, `secret/lmr-secret` and the pull secret
+`regcred2` to exist in the cluster. To roll out a new image:
+
+```bash
+kubectl apply -f deploy/k8s/lmr.yaml                 # only when the manifest changed
+kubectl rollout restart deployment/localmodelroutex
+kubectl rollout status deployment/localmodelroutex
+```
+
+`compose.yml` and `compose.bundled.yml` build from source for single-host use.
+The bundled variant runs Postgres inside the same container.
+
 ## Database & migrations
 
 SQL migrations live in [`backend/migrations/`](backend/migrations/) using

deploy/k8s/lmr.yaml

@@ -0,0 +1,90 @@
+# LMR gateway on k3s. Config and secrets live in the cluster:
+#   configmap/lmr-config  GATEWAY_* settings
+#   secret/lmr-secret     GATEWAY_DB_URL, GATEWAY_OIDC_CLIENT_SECRET, GATEWAY_SECURITY_ENCRYPTION_KEY
+#   secret/regcred2       registry pull credentials
+# Apply with: kubectl apply -f deploy/k8s/lmr.yaml
+# Roll a new image with: kubectl rollout restart deployment/localmodelroutex
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: localmodelroutex
+  namespace: default
+  labels:
+    app: localmodelroutex
+spec:
+  replicas: 3
+  revisionHistoryLimit: 5
+  selector:
+    matchLabels:
+      app: localmodelroutex
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 25%
+      maxUnavailable: 25%
+  template:
+    metadata:
+      labels:
+        app: localmodelroutex
+    spec:
+      imagePullSecrets:
+        - name: regcred2
+      terminationGracePeriodSeconds: 30
+      containers:
+        - name: localmodelroutex
+          image: registry.govekar.net/lovrog05/localmodelroutex:latest
+          imagePullPolicy: Always
+          ports:
+            - name: http
+              containerPort: 8080
+          envFrom:
+            - configMapRef:
+                name: lmr-config
+            - secretRef:
+                name: lmr-secret
+          # Startup covers OIDC discovery and the first database connection.
+          # Up to 2 minutes before the liveness probe takes over.
+          startupProbe:
+            httpGet:
+              path: /healthz
+              port: http
+            periodSeconds: 5
+            timeoutSeconds: 3
+            failureThreshold: 24
+          # /healthz only checks that the process answers. A database or
+          # network blip must not restart the pod, so this never touches the DB.
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: http
+            periodSeconds: 20
+            timeoutSeconds: 5
+            failureThreshold: 3
+          # /readyz pings the database with a 3 second internal timeout. The
+          # pod leaves the Service while the database is unreachable and
+          # returns when it recovers, without a restart.
+          readinessProbe:
+            httpGet:
+              path: /readyz
+              port: http
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 3
+            successThreshold: 1
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: lmr
+  namespace: default
+  labels:
+    app: localmodelroutex
+spec:
+  type: LoadBalancer
+  selector:
+    app: localmodelroutex
+  ports:
+    - name: http
+      port: 80
+      targetPort: http
+      protocol: TCP