Run a single-node standalone non-root cockroachdb in kubernetes

cockroach.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: cockroachdb
spec:
  selector:
    app: cockroachdb
  type: ClusterIP
  ports:
  - name: cockroachdb
    protocol: TCP
    port: 26257
    targetPort: cockroachdb
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: cockroachdb
  labels:
    app: cockroachdb
spec:
  selector:
    matchLabels:
      app: cockroachdb
  replicas: 1
  template:
    metadata:
      labels:
        app: cockroachdb
    spec:
      containers:
        - name: cockroachdb
          image: cockroachdb/cockroach:v21.2.7
          args:
            - start-single-node
            - --insecure
            - --store
            - path=/tmp/cockroach-data
          resources:
            requests:
              cpu: 500m
              memory: 500Mi
            limits:
              cpu: 500m
              memory: 500Mi
          ports:
            - containerPort: 26257
              name: cockroachdb
      restartPolicy: Always