Shulou(Shulou.com)06/01 Report--

This article mainly explains "the installation steps of k8s1.5.2". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the installation steps of k8s1.5.2.

I. Environmental requirements

1. Linux kernel 3.10 or above

2. 64-bit system

3. 4G memory

4. Install docker

Set up the cluster

Master = 192.168.206.130

Minion1 = 192.168.206.131

Minion2 = 192.168.206.132

Second, install master

Yum install-y kubernetes etcd flannel

III. Modify / etc/kubernetes/apiserver

KUBE_API_ADDRESS= "--insecure-bind-address=172.16.138.101" can also be changed to 0.0.0.0 which is more dangerous.

Remove ServiceAccount from the KUBE_ADMISSION_CONTROL field and do not want this access mechanism

Configuration file

Vim / etc/kubernetes/config

KUBE_LOGTOSTDERR= "--logtostderr=true"

KUBE_LOG_LEVEL= "--vault 0"

KUBE_ALLOW_PRIV= "--allow-privileged=false"

KUBE_MASTER= "- master= http://master:8080" (can also be written as IP)

Modify / etc/hosts

192.168.206.130 master

192.168.206.131 node01

192.168.206.132 node02

6. Configure etcd

In master:

Vim / etc/etcd/etcd.conf

ETCD_LISTEN_CLIENT_URLS= "http://0.0.0.0:2379" (your own designated ip is also available)

ETCD_ADVERTISE_CLIENT_URLS= "http://0.0.0.0:2379"

Vim / etc/kubernetes/apiserver

KUBE_API_ADDRESS= "--insecure-bind-address=0.0.0.0"

KUBE_API_PORT= "--port=8080"

KUBELET_PORT= "--kubelet-port=10250"

KUBE_ETCD_SERVERS= "--etcd-servers= http://127.0.0.1:2379"

KUBE_SERVICE_ADDRESSES= "--service-cluster-ip-range=10.254.0.0/16"

KUBE_ADMISSION_CONTROL= "--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota"

KUBE_API_ARGS= ""

7. Register for FLANNEL

In master:

Service etcd start

Etcdctl mkdir / kube-centos/network

Etcdctl mk / kube-centos/network/config "{\" Network\ ":\" 172.30.0.0 Backend 16\ ",\" SubnetLen\ ": 24,\" Backend\ ": {\" Type\ ":\" vxlan\ "}"

172.30 is a self-defined class B, and then it assigns a class C address, starting with 172.30.

Configure flannel

Vim / etc/sysconfig/flanneld

FLANNEL_ETCD= "http://master:2379"

FLANNEL_ETCD_KEY= "/ kube-centos/network"

FLANNEL_OPTIONS= ""

Note: comment out the sentence # FLANNEL_ETCD_PREFIX= "/ atomic.io/network" and use this sentence

FLANNEL_ETCD_KEY= "/ kube-centos/network"

Turn off all firewalls and selinux

Systemctl disable iptables.services firewalld

Systemctl stop iptables.services firewalld

Restart the service:

For SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler flanneld; do

Systemctl restart $SERVICES

Systemctl enable $SERVICES

Systemctl status $SERVICES

Done

Optional

Kubectl config set-cluster default-cluster-- server= http://master:8080

Kubectl config set-context default-context-cluster=default-cluster-user=default-admin

Kubectl config use-context default-context

Second, configure nodes

1. Yum install-y kubernetes-node flannel

Echo "

192.168.206.130master

192.168.206.131node01

192.168.206.132 node02 "> > / etc/hosts

Configuration file

Vim / etc/kubernetes/config

KUBE_LOGTOSTDERR= "--logtostderr=true"

KUBE_LOG_LEVEL= "--vault 0"

KUBE_ALLOW_PRIV= "--allow-privileged=false"

KUBE_MASTER= "--master= http://master:8080"

Vim / etc/kubernetes/kubelet

KUBELET_ADDRESS= "--address=0.0.0.0"

KUBELET_HOSTNAME= "--hostname-override=minion2"

KUBELET_API_SERVER= "--api-servers= http://master:8080"

# change the pause address to the address of the downloaded pause-amd64:3.0 in harbor

KUBELET_POD_INFRA_CONTAINER= "--pod-infra-container-p_w_picpath=docker.io/kubernetes/pause:2.0"

KUBELET_ARGS= ""

In fact, pay attention to KUBELET_POD_INFRA_CONTAINER= "--pod-infra-container-p_w_picpath=192.168.206.153/myproject/pause:2.0"

Configure flannel

Vim / etc/sysconfig/flanneld

FLANNEL_ETCD= "http://master:2379"

FLANNEL_ETCD_KEY= "/ kube-centos/network"

FLANNEL_OPTIONS= ""

Restart related services

For SERVICES in kube-proxy kubelet flanneld docker; do

Systemctl restart $SERVICES

Systemctl enable $SERVICES

Systemctl status $SERVICES

Done

See if the node is registered.

Kubectl get node

Kubectl get node-w

3. Configure DASHBOARD

Note all master and node nodes

/ etc/sysconfig/docker

ADD_REGISTRY='--insecure-registry 192.168.206.129' (address of HABOR)

Download the yaml file, file location / root/kubernetes-dashboard.yaml (available in harbor)

Modify the following fields:

P_w_picpath: 192.168.206.129/kube/k8s-dashboard:1.6.0

P_w_picpathPullPolicy: IfNotPresent

-apiserver-host= http://master:8080

Install the resource kubectl create-f kubernetes-dashboard.yaml

Get status kubectl get pod-- namespace=kube-system

Error checking: kubectl describe pod-namespace=kube-system (troubleshooting)

After success, you can see the interface of K8S.

At this point, I believe that everyone on the "k8s1.5.2 installation steps" have a deeper understanding, might as well come to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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