Minikube 卷

Question

Minikube 应该使本地运行 Kubernetes 变得简单，不仅对 "getting started" 而且 "day-to-day development workflows"。

来源：https://github.com/kubernetes/minikube/blob/master/ROADMAP.md#goals

但我也可以读到："PersistentVolumes are mapped to a directory inside the minikube VM. The Minikube VM boots into a tmpfs, so most directories will not be persisted across reboots (minikube stop)"

来源：https://kubernetes.io/docs/getting-started-guides/minikube/#persistent-volumes

如果我的开发需要持久存储（MySQL 数据库，mongodb 数据库，...）怎么办？我需要扔掉我的 Minikube 并直接安装完整的 Kubernetes 吗？

Answer 1

the documentation 中对此进行了介绍。相关部分在您已经引用的句子之后开始：

However, Minikube is configured to persist files stored under the following host directories:

/data

/var/lib/localkube

/var/lib/docker

Here is an example PersistentVolume config to persist data in the ‘/data’ directory:
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv0001
spec:
  accessModes:
    - ReadWriteOnce
  capacity:
    storage: 5Gi
  hostPath:
    path: /data/pv0001/

只需声明映射到主机 /data 中任何目录的 hostPath 卷，这些卷应该在重新启动后保持不变。

Answer 2

这是 Minikube 贡献者的回答，确认文档中存在问题：

I've reworded the readme to make a little more sense.

The host is the computer you're running minikube on. This is only exposed to the VM through the mounted host folders https://github.com/kubernetes/minikube/blob/master/docs/host_folder_mount.md

The guest, or minikube VM, will persist certain folders to a disk stored on the host (something like ~/.minikube/machines/minikube/disk.vmdk). Files stored in certain directories in the minikube VM will persist between start/stops, but not deletes.

来源：https://github.com/kubernetes/minikube/issues/1184

Answer 3

或者您可以尝试 https://github.com/reachlin/k8s0/，这是一个使用 ansible 安装在单个主机上的成熟的 kubernetes。

Minikube 卷

Minikube volumes

kubernetes

minikube