feat(homelab): isolate PR runner and add Paperless

paperless/k8s/database-init-job.yaml

@@ -0,0 +1,58 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: paperless-database-init
+  namespace: database
+spec:
+  backoffLimit: 5
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: paperless-database-init
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: create-database
+          image: postgres:17.11-alpine
+          command:
+            - /bin/sh
+            - -ec
+            - |
+              PGPASSWORD="$POSTGRES_ADMIN_PASSWORD" psql \
+                --host postgres \
+                --username postgres \
+                --dbname postgres \
+                --set ON_ERROR_STOP=1 \
+                --set paperless_password="$PAPERLESS_DB_PASSWORD" <<'SQL'
+              SELECT format(
+                'CREATE ROLE paperless LOGIN PASSWORD %L',
+                :'paperless_password'
+              )
+              WHERE NOT EXISTS (
+                SELECT FROM pg_roles WHERE rolname = 'paperless'
+              )
+              \gexec
+              SELECT format('CREATE DATABASE paperless OWNER paperless')
+              WHERE NOT EXISTS (
+                SELECT FROM pg_database WHERE datname = 'paperless'
+              )
+              \gexec
+              SQL
+          env:
+            - name: POSTGRES_ADMIN_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-shared-secrets
+                  key: POSTGRES_ADMIN_PASSWORD
+            - name: PAPERLESS_DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-shared-secrets
+                  key: PAPERLESS_DB_PASSWORD
+          resources:
+            requests:
+              cpu: 10m
+              memory: 32Mi
+            limits:
+              cpu: 100m
+              memory: 128Mi