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Kubernetes single node offline installation

2025-04-05 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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You may need to install offline for a variety of reasons, but it depends on why you don't install it through apt or yum.

This mainly refers to the operating system of the rpm package, such as centos, fedora and so on.

Description of environment

The v1.14.1 version of kubernetes is installed here, and cni selects flannel.

The installation system depends on the yum install conntrack-tools socat ebtables system environment to configure groupadd dockeruseradd-g docker docker

Possible configurations / etc/default/grub-> GRUB_CMDLINE_LINUX_DEFAULT

Cgroup_enable=memory swapaccount=1

Cancel swap

Edit / etc/fstab to comment out the line containing the swap field

Finally restart

Download related files

Download kubeadm,kubectl, kubelet, kubernetes-cni, docker-ce, kube-flannel.yml

Curl-LO https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubeadmcurl-LO https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubeletcurl-LO https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectlcurl-LO https://download.docker.com/linux/static/stable/x86_64/docker-18. 06.3-ce.tgzcurl-LO https://github.com/containernetworking/plugins/releases/download/v0.8.2/cni-plugins-linux-amd64-v0.8.2.tgzcurl-LO https://raw.githubusercontent.com/coreos/flannel/62e44c867a2846fefb68bd5f178daf4da3095ccb/Documentation/kube-flannel.yml install kubernetes related commands chmod + x kube*mv kube* / usr/local/bin/mkdir-p / opt/cni/bintar xf cni-plugins-linux-amd64-v0.8.2.tgz-C / opt/cni/bin

Configure the kubelet service

Cat > / usr/lib/systemd/system/kubelet.service / etc/systemd/system/kubelet.service.d/10-kubeadm.conf / usr/lib/systemd/system/docker.service [Unit] Description=docker: docker [service] ExecStart=/usr/local/bin/dockerdRestart=alwaysStartLimitInterval=0RestartSec= 10 [install] WantedBy=multi-user.target

Start the docker service and start with the system

Systemctl enable dockersystemctl start docker

Download the following docker images through the docker pull command:

K8s.gcr.io/kube-apiserver:v1.14.1k8s.gcr.io/kube-controller-manager:v1.14.1k8s.gcr.io/kube-scheduler:v1.14.1k8s.gcr.io/kube-proxy:v1.14.1k8s.gcr.io/pause:3.1k8s.gcr.io/etcd:3.3.10k8s.gcr.io/coredns:1.3.1 https://raw.githubusercontent.com/coreos/flannel/62e44c867a2846fefb68bd5f178daf4da3095ccb/Documentation/kube-flannel.ymlquay.io/coreos/flannel:v0.11.0-amd64

These related mirror versions can be listed with the following command

Kubeadm config images listk8s cluster initialization kubeadm init-vault 8-- alsologtostderr

Configure your own admin.conf

Mkdir-p $HOME/.kubecp-I / etc/kubernetes/admin.comf $HOME/.kube

Make yourself schedulable

Kubectl taint node hostname node-role.kubernetes.io/master=-

Configure the pod cidr network

Edit the / etc/kubernetes/manifests/kube-controller-manager.yaml file and add in the command entry

-- allocate-node-cidrs=true--cluster-cidr=10.244.0.0/16

Restart kubelet

Systemctl restart kubelet installs cnikubectl apply-f kube-flannel.yml

So far, it's done.

The final explanation

Pure record, if it can't be loaded according to the document or some commands are normal.

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