cannot create Kubernetes v1.17.17 cluster on cgroups v2 host

[ermalguni]

What happened: Cannot create multi node cluster of older kubernetes version v1.17.17.

What you expected to happen: Multi node cluster gets created succesfully

How to reproduce it (as minimally and precisely as possible):

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
name: pe-test
nodes:
- role: control-plane
  image: kindest/node:v1.17.17@sha256:66f1d0d91a88b8a001811e2f1054af60eef3b669a9a74f9b6db871f2f1eeed00
  extraPortMappings:
  - containerPort: 80
    hostPort: 18080
    protocol: TCP
  - containerPort: 443
    hostPort: 18443
    protocol: TCP
- role: worker
  image: kindest/node:v1.17.17@sha256:66f1d0d91a88b8a001811e2f1054af60eef3b669a9a74f9b6db871f2f1eeed00
- role: worker
  image: kindest/node:v1.17.17@sha256:66f1d0d91a88b8a001811e2f1054af60eef3b669a9a74f9b6db871f2f1eeed00

Anything else we need to know?:

Environment:

• kind version: (use kind version): 0.11.1
• Kubernetes version: (use kubectl version):

Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.0", GitCommit:"cb303e613a121a29364f75cc67d3d580833a7479", GitTreeState:"clean", BuildDate:"2021-04-08T16:31:21Z", GoVersion:"go1.16.1", Compiler:"gc", Platform:"linux/amd64"}

• Docker version: (use docker info):

Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-tp-docker)

Server:
 Containers: 1
  Running: 0
  Paused: 0
  Stopped: 1
 Images: 4
 Server Version: 20.10.6
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: false
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 36cc874494a56a253cd181a1a685b44b58a2e34a.m
 runc version: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
  cgroupns
 Kernel Version: 5.12.8-arch1-1
 Operating System: Arch Linux
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 31.04GiB
 Name: pe
 ID: EBSG:MAJK:HEPA:U5X3:ALVG:QI7S:6SRS:6H5F:DSJX:WY5J:M52Q:KGRX
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Username: ermalguni
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: No kernel memory limit support
WARNING: No oom kill disable support

• OS (e.g. from /etc/os-release): Arch Linux (Linux pe 5.12.8-arch1-1 Add all the things: port history from test-infra #1 SMP PREEMPT Fri, 28 May 2021 15:10:20 +0000 x86_64 GNU/Linux)

[BenTheElder]

It's not that it's multi-node, it's that you're on cgroups v2 and Kubernetes doesn't support cgroups v2 before 1.19.

Cgroup Version: 2

kindest/node:v1.17.17

We can't do anything about that. It's a large patch that will not be backported upstream and versions older than 1.19 are also not supported by Kubernetes upstream anymore and won't receive any patches.

https://kind.sigs.k8s.io/docs/user/known-issues/#failure-to-create-cluster-with-cgroups-v2

https://kubernetes.io/releases/patch-releases

[ermalguni]

Thank you. For future readers: after switching to cgroups v1 the cluster did start.