初始提交：DSH 多租户平台（dshs）

poc/04-cnpg-pgbench/cluster.yaml

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+# §4.5：CloudNativePG 3 实例，Longhorn RWO（每实例独立卷，复制由 PG 自身做）。
+# imageName 走 operator 默认镜像；若你的 operator 未设默认，取消注释并指定版本。
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: dsh-pg-poc
+  namespace: dsh-poc
+spec:
+  instances: 3
+  # imageName: ghcr.io/cloudnative-pg/postgresql:16.2
+  storage:
+    size: 1Gi
+    storageClass: longhorn
+  bootstrap:
+    initdb:
+      database: dsh
+      owner: dsh

poc/04-cnpg-pgbench/run.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+NS=dsh-poc
+HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+kubectl create namespace "$NS" --dry-run=client -o yaml | kubectl apply -f - >/dev/null
+kubectl apply -f "$HERE/cluster.yaml" >/dev/null
+
+echo "== wait for CloudNativePG cluster ready (3 instances) =="
+READY=0
+for _ in $(seq 1 72); do
+  READY="$(kubectl get -n "$NS" cluster dsh-pg-poc -o jsonpath='{.status.readyInstances}' 2>/dev/null || echo 0)"
+  [ "$READY" = "3" ] && break
+  sleep 5
+done
+if [ "$READY" != "3" ]; then
+  echo "FAIL: cluster not ready in time (readyInstances=$READY)"
+  kubectl get -n "$NS" cluster dsh-pg-poc -o yaml
+  exit 1
+fi
+echo "PASS: cluster ready (3 instances)"
+
+PGHOST=dsh-pg-poc-rw
+PGUSER="$(kubectl get -n "$NS" secret dsh-pg-poc-app -o jsonpath='{.data.username}' | base64 -d)"
+PGPASSWORD="$(kubectl get -n "$NS" secret dsh-pg-poc-app -o jsonpath='{.data.password}' | base64 -d)"
+PGDATABASE="$(kubectl get -n "$NS" secret dsh-pg-poc-app -o jsonpath='{.data.dbname}' | base64 -d)"
+
+echo "== pgbench init (scale 5) =="
+kubectl run -n "$NS" pgbench-init --rm -i --restart=Never --image=postgres:16 \
+  --env "PGHOST=$PGHOST" --env "PGUSER=$PGUSER" --env "PGPASSWORD=$PGPASSWORD" --env "PGDATABASE=$PGDATABASE" \
+  -- pgbench -i -s 5 2>&1 | tail -3
+
+echo
+echo "== pgbench select-only (30s, c4/j2) =="
+kubectl run -n "$NS" pgbench-run --rm -i --restart=Never --image=postgres:16 \
+  --env "PGHOST=$PGHOST" --env "PGUSER=$PGUSER" --env "PGPASSWORD=$PGPASSWORD" --env "PGDATABASE=$PGDATABASE" \
+  -- pgbench -S -T 30 -c 4 -j 2 2>&1 | grep -E 'latency average|including connections establishing' || true
+
+echo
+echo "记录上面的 tps / latency average 作为 Longhorn 上的基线（对照节点 NVMe 判断 §4.5 是否可接受）"