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Introduction to kubelet components kubernetes is a distributed cluster management system. Every node needs to run a worker to manage the life cycle of the container. The worker program is kubelet The main function of kubelet is to obtain the desired state of pod/container on a node (what container to run, the number of copies to run, how to c ...

node related component installation docker installation Install the latest version of docker wget -qO- https://get.docker.com/ | sh kubelet installation Download the kubelet executable binary file and place it in the directory / opt/kubernetes/bin New directory / var/lib/kubelet Add kubelet.service file to / usr/lib/s ...

Previous review To deploy a k8s multi node, you must first deploy a k8s cluster with a single master node For details, please refer to: blog.csdn.net/caozhengtao1213/article/details/103987039 Content of this article 1. Deploy Master2 2.Nginx load balancing deployment keepalived service 3.node no ...

Resource Management (k8s) Resource (above) Article Directory Resource Management (k8s) Resource (above) Initial knowledge Core Design How to use Limit test What happens if memory is too small What about modifying limits to limit memory/CPU overruns How about tuning requests memory/CPU Turn reque ...

1. Overview of kubernetes upgrade Kubernetes version upgrade iteration is very fast, update every three months, many new functions iterate quickly in the new version. In order to keep consistent with the community version function, upgrade the kubernetes cluster, the community has upgraded the cluster through the kubeadm tool, the upgrade step ...

phenomenonAn internal error occurred on the harbor mirror platform server and the request could not be completed InvestigationLogging on to dashboard finds that the node state is not ready, and then logs on to the nodeWhen you see that they are indeed not ready, your instinct is to rerun the kubelet, kube-proxy services and return them to the ...

Kubernetes 1.12.1 quick upgrade includes three main steps: upgrade kubedm / kubectl / kubelet version, pull image, upgrade kubernetes cluster. 1. Upgrade kubeadm/kubectl/kubelet version apt install kubeadm=1.12.1 kubectl=1.12.1 kubelet=1.12.1 To view the container image version of this version: kubeadm config images list The output is as ...

Resource configuration format: apiVersion: The version used to define an api group. Kind: Used to define resource types. Metadata: Used to define metadata, what it contains, the name of a resource, its tags, the namespace to which it belongs, and so on. sepc: Used to define the expected state of a resource. status: The actual state of the res ...

kubernetes command summary Set Turn off virtual memory swapoff -a vim /etc/fstabl #/dev/mapper/centos-swap swap View docker environment variables systemctl show --property=Environment docker Set agent cancel agent export http_proxy="http://127.0.0.1:8123/" unset http_proxy View token kubeadm token list Get token command in SA kubectl ...

Nodes only need to install kubelet service, and all node s need to install Kube proxy Deploy kubelet 1. Binary package preparationCopy the package from to all node s. [root@node-01 ~]# cd /usr/local/src/kubernetes/server/bin/ [root@node-01 bin]# for n in `seq 204 206`;do scp kubelet 10.31.90.$n:/data/kubernetes/bin/ ;done [root@node-01 bin]# f ...