programmersd21
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flow
flow is a minimalist terminal dashboard that displays real-time network throughput with smooth animations, multiple responsive modes, and zero configuration.
AI 仓库情报摘要
FR-AI / ANALYSIS为什么值得关注
它透明地记录了特定平台的失败情况（例如Apple Silicon无法启动虚拟机）并提供了解决方法，使其成为诚实的教学工具而非经过修饰的演示。
适合谁使用
- 探索虚拟机工作负载的Kubernetes运维人员
- 学习KubeVirt和Rancher的开发者
- 学习云原生虚拟化的学生或培训师
- 在笔记本电脑上评估多集群管理的DevOps工程师
典型使用场景
- 学习KubeVirt CRD、实时迁移和CDI存储
- 练习Rancher集群导入和多集群管理
- 在受限环境中测试虚拟机网络、Day-2操作和故障排除
- 验证KubeVirt的跨平台行为（尤其是Apple Silicon）
项目优势
- 提供逐步实验，带有可验证的检查点和故障排除表
- 通过Makefile目标自动化整个设置（kind、KubeVirt、CDI、Rancher）
- 记录所有已知限制并给出解决方法（如MTU修复、自定义容器磁盘）
- 已在Apple Silicon（M1 Pro）上验证，并提供详细的平台支持矩阵
使用前须知
- 虚拟机无法在Apple Silicon（M1/M2）上启动，除非使用嵌套虚拟化；M3+需Colima
- 存储仅限local-path（RWO，无CSI快照，迁移受限）
- 无Multus或真实L2网络；无负载均衡器（仅NodePort）
- 首次运行较慢（约25分钟，约2GB镜像），需要至少4 CPU / 8 GiB内存
README 快速开始
kubevirt-kind-lab
Practise KubeVirt (running virtual machines on Kubernetes) and Rancher (multi-cluster management) on a laptop — entirely in Docker, with every platform limitation documented and verified rather than glossed over.
Guests don't boot on Apple Silicon. The KubeVirt control plane, CDI, storage and all of Rancher work; the final QEMU boot of a VM does not, because KubeVirt requires
host-passthroughon Arm64 and macOS gives containers no/dev/kvm. Full diagnosis and three fixes: docs/booting-real-vms.md. See Platform support before you start.
Contents — What you'll learn · Platform support · Prerequisites · Start here · Architecture · The labs · Everyday commands · Layout · Known limits · Versions
What you'll learn
- How KubeVirt turns a VM into a pod —
virt-operator/api/controller/handler, and how a CRD compiles down to libvirt domain XML - Why ordinary Services, DNS and NetworkPolicy work unchanged against a VM
- How CDI imports a cloud image into a PVC, and when a disk is ephemeral vs persistent
- Day-2 operations: live migration, disk hot-plug, snapshots, and drain-as-migration
- How Rancher actually attaches to a cluster — the agent dials out, which is why
server-urlis the setting people get wrong
Platform support
| Host | Control plane · CDI · Rancher | Guest VMs boot? |
|---|---|---|
Linux x86_64 with /dev/kvm | ✅ | ✅ full speed — the best target |
| Linux x86_64, no KVM | ✅ | ✅ works, 10–30× slower (QEMU TCG) |
| macOS Apple Silicon (M1/M2) | ✅ verified | ❌ hardware limit — why |
| macOS Apple Silicon (M3+) | ✅ | ✅ via Colima + nested virt |
| Windows / WSL2 | untested — #2 | untested |
Verified on Apple M1 Pro / macOS 15.3.1 / Docker Desktop 29.4.1: kind + KubeVirt
v1.8.4 reach Deployed, CDI v1.65.0 imports Fedora 42 into a PVC in ~3 min,
and Rancher v2.12.3 imports the cluster to state active.
The scripts probe /dev/kvm on the Docker daemon's host, not on the machine
you're typing on — so docker context use then make virt
项目描述
Practise KubeVirt (VMs on Kubernetes) and Rancher locally on kind — with every platform limitation documented and verified.
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