Not able to start the minikube even after installing cri-dockerd

[vpuliyal]

What Happened?

sudo -E /usr/local/bin/minikube start --driver=none

• minikube v1.28.0 on Redhat 8.6 (ppc64le)
  ! Both driver=none and vm-driver=none have been set.

  Since vm-driver is deprecated, minikube will default to driver=none.

  If vm-driver is set in the global config, please run "minikube config unset vm-driver" to resolve this warning.

• Using the none driver based on user configuration

• Starting control plane node minikube in cluster minikube

• Running on localhost (CPUs=48, Memory=63349MB, Disk=71645MB) ...

• Exiting due to NOT_FOUND_CRI_DOCKERD:

• Suggestion:

  The none driver with Kubernetes v1.24+ and the docker container-runtime requires cri-dockerd.

  Please install cri-dockerd using these instructions:

  https://github.com/Mirantis/cri-dockerd#build-and-install

Installed cri-dockerd using https://github.com/Mirantis/cri-dockerd link.
[root@cloudalplp1 home]# which cri-dockerd
/usr/local/bin/cri-dockerd
########
Here I'm attaching minikube log file also.
log.txt

Attach the log file

log.txt

Operating System

Redhat/Fedora

Driver

No response

[afbjorklund]

This is a quirk in RHEL7 and RHEL8 (I think it was fixed in RHEL9 ?), you have to install as /usr/bin/cri-dockerd

So, sudo which cri-dockerd fails. The check needs to consider this, just as it is doing for crictl at the moment...

[vpuliyal]

]# sudo -E /usr/local/bin/minikube start --driver=none --container-runtime=''

• minikube v1.28.0 on Redhat 8.6 (ppc64le)
  ! Both driver=none and vm-driver=none have been set.

  Since vm-driver is deprecated, minikube will default to driver=none.

  If vm-driver is set in the global config, please run "minikube config unset vm-driver" to resolve this warning.

• Using the none driver based on user configuration

• Starting control plane node minikube in cluster minikube

• Running on localhost (CPUs=48, Memory=63349MB, Disk=71645MB) ...

• OS release is Red Hat Enterprise Linux 8.6 (Ootpa)

X Exiting due to RUNTIME_ENABLE: Temporary Error: sudo crictl version: exit status 1
stdout:

stderr:
time="2022-11-25T02:29:37-06:00" level=fatal msg="unable to determine runtime API version: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/cri-dockerd.sock: connect: connection refused""

╭─────────────────────────────────────────────────────────────────────────────────────────────╮
│ │
│ * If the above advice does not help, please let us know: │
│ https://github.com/kubernetes/minikube/issues/new/choose │
│ │
│ * Please run minikube logs --file=logs.txt and attach logs.txt to the GitHub issue. │
│ │
╰─────────────────────────────────────────────────────────────────────────────────────────────╯

[root@cloud cri-dockerd]# sudo crictl version
FATA[0000] unable to determine runtime API version: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/cri-dockerd.sock: connect: connection refused"
[root@cloud cri-dockerd]#

sudo which cri-dockerd

/bin/cri-dockerd

[afbjorklund]

This needs to be working, before minikube can run: sudo crictl version

You might get some more details from sudo systemctl status cri-docker

[vpuliyal]

sudo crictl version

FATA[0000] unable to determine runtime API version: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/cri-dockerd.sock: connect: connection refused"

sudo systemctl status cri-docker

● cri-docker.service - CRI Interface for Docker Application Container Engine
Loaded: loaded (/etc/systemd/system/cri-docker.service; enabled; vendor preset: disabled)
Active: inactive (dead)
Docs: https://docs.mirantis.com

[afbjorklund]

Maybe need to look at "crictl.socket" unit, or attempt a manual "sudo systemctl start cri-docker.service" to see the error.

Maybe even cri-dockerd --log-level debug, but it is supposed to be enough to install it - minikube will start cri-dockerd

[vpuliyal]

]# sudo systemctl start cri-docker.service
cri-dockerd]# cri-dockerd --log-level debug
INFO[0000] Connecting to docker on the Endpoint unix:///var/run/docker.sock
INFO[0000] Start docker client with request timeout 0s
INFO[0000] Hairpin mode is set to none
DEBU[0000] Unable to update cni config: no networks found in /etc/cni/net.d
DEBU[0000] Unable to update cni config: no networks found in /etc/cni/net.d
INFO[0000] Loaded network plugin cni
INFO[0000] Docker cri networking managed by network plugin cni
DEBU[0000] Unable to update cni config: no networks found in /etc/cni/net.d
INFO[0000] Docker Info: &{ID:H4CP:YOUO:V267:C4UK:UDBB:NFRJ:OQYP:IFQQ:EP6Q:ZSIL:VVGB:OZYO Containers:0 ContainersRunning:0 ContainersPaused:0 ContainersStopped:0 Images:0 Driver:overlay2 DriverStatus:[[Backing Filesystem xfs] [Supports d_type true] [Native Overlay Diff true] [userxattr false]] SystemStatus:[] Plugins:{Volume:[local] Network:[bridge host ipvlan macvlan null overlay] Authorization:[] Log:[awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog]} MemoryLimit:true SwapLimit:true KernelMemory:true KernelMemoryTCP:true CPUCfsPeriod:true CPUCfsQuota:true CPUShares:true CPUSet:true PidsLimit:true IPv4Forwarding:true BridgeNfIptables:true BridgeNfIP6tables:true Debug:false NFd:28 OomKillDisable:true NGoroutines:37 SystemTime:2022-11-25T03:05:30.248310714-06:00 LoggingDriver:json-file CgroupDriver:cgroupfs CgroupVersion:1 NEventsListener:0 KernelVersion:4.18.0-372.9.1.el8.ppc64le OperatingSystem:Red Hat Enterprise Linux 8.6 (Ootpa) OSVersion:8.6 OSType:linux Architecture:ppc64le IndexServerAddress:https://index.docker.io/v1/ RegistryConfig:0xc00025d340 NCPU:48 MemTotal:66426699776 GenericResources:[] DockerRootDir:/var/lib/docker HTTPProxy: HTTPSProxy: NoProxy: Name:cloudalplp1.aus.stglabs.ibm.com Labels:[] ExperimentalBuild:false ServerVersion:v20.10.21 ClusterStore: ClusterAdvertise: Runtimes:map[io.containerd.runc.v2:{Path:runc Args:[] Shim:} io.containerd.runtime.v1.linux:{Path:runc Args:[] Shim:} runc:{Path:runc Args:[] Shim:}] DefaultRuntime:runc Swarm:{NodeID: NodeAddr: LocalNodeState:inactive ControlAvailable:false Error: RemoteManagers:[] Nodes:0 Managers:0 Cluster: Warnings:[]} LiveRestoreEnabled:false Isolation: InitBinary:docker-init ContainerdCommit:{ID:770bd0108c32f3fb5c73ae1264f7e503fe7b2661 Expected:770bd0108c32f3fb5c73ae1264f7e503fe7b2661} RuncCommit:{ID:v1.1.4-0-g5fd4c4d Expected:v1.1.4-0-g5fd4c4d} InitCommit:{ID:de40ad0 Expected:de40ad0} SecurityOptions:[name=seccomp,profile=default] ProductLicense: DefaultAddressPools:[] Warnings:[]}
INFO[0000] Setting cgroupDriver cgroupfs
INFO[0000] Docker cri received runtime config &RuntimeConfig{NetworkConfig:&NetworkConfig{PodCidr:,},}
INFO[0000] Starting the GRPC backend for the Docker CRI interface.
INFO[0000] Start cri-dockerd grpc backend
DEBU[0000] init pid ns is "pid:[4026531836]"
DEBU[0000] Pid 59487 pid ns is "pid:[4026531836]"
DEBU[0000] attempting to apply oom_score_adj of -999 to pid 59487
DEBU[0000] init pid ns is "pid:[4026531836]"
DEBU[0000] Pid 4832 pid ns is "pid:[4026531836]"
DEBU[0000] attempting to apply oom_score_adj of -999 to pid 4832
DEBU[0005] Unable to update cni config: no networks found in /etc/cni/net.d
DEBU[0010] Unable to update cni config: no networks found in /etc/cni/net.d
DEBU[0015] Unable to update cni config: no networks found in /etc/cni/net.d
DEBU[0020] Unable to update cni config: no networks found in /etc/cni/net.d

[afbjorklund]

Seems happy enough, except that you will also need to configure CNI networks (minikube can do this for you)

It is normal to get such output about a missing network, until the cluster has been configured and is running.

• Default CNI to enabled, even for Docker runtime #14760

--enable-default-cni

[vpuliyal]

@afbjorklund thanks. It's working now

sudo -E /usr/local/bin/minikube start --driver=none --container-runtime=''

• minikube v1.28.0 on Redhat 8.6 (ppc64le)
• Using the none driver based on existing profile
• Starting control plane node minikube in cluster minikube
• Restarting existing none bare metal machine for "minikube" ...
• OS release is Red Hat Enterprise Linux 8.6 (Ootpa)

  kubeadm.sha256: 64 B / 64 B [-------------------------] 100.00% ? p/s 0s
  kubectl: 41.94 MiB / 41.94 MiB [-----------] 100.00% 80.59 MiB p/s 700ms
  kubeadm: 40.88 MiB / 40.88 MiB [------------] 100.00% 21.64 MiB p/s 2.1s

  • Generating certificates and keys ...
  • Booting up control plane ...
  • Configuring RBAC rules ...
• Configuring local host environment ...

! The 'none' driver is designed for experts who need to integrate with an existing VM

• Most users should use the newer 'docker' driver instead, which does not require root!
• For more information, see: https://minikube.sigs.k8s.io/docs/reference/drivers/none/

! kubectl and minikube configuration will be stored in /root
! To use kubectl or minikube commands as your own user, you may need to relocate them. For example, to overwrite your own settings, run:
*

• sudo mv /root/.kube /root/.minikube $HOME
• sudo chown -R $USER $HOME/.kube $HOME/.minikube

• This can also be done automatically by setting the env var CHANGE_MINIKUBE_NONE_USER=true
• Verifying Kubernetes components...
  • Using image gcr.io/k8s-minikube/storage-provisioner:v5
• Enabled addons: default-storageclass, storage-provisioner
• Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

[afbjorklund]

Ignore all the output about drivers and users and configuration, it is also broken (or slightly misleading).

Well except for that part that you should not run as root, and that you can run kubernetes in rootless now.

[afbjorklund]

All of this is supposed to work out-of-the-box, but it is not being tested (and especially not on IBM/PPC)

Unfortunately, it is bound to break even worse soon since Kubernetes 1.26 does not support Docker - yet.