2. 程式人生 > 其它 >|NO.Z.00082|——————————|^^ 部署 ^^|——|KuberNetes&kubeadm.V11|5臺Server|---------------------------------------|kubernetes元件|calico|

|NO.Z.00082|——————————|^^ 部署 ^^|——|KuberNetes&kubeadm.V11|5臺Server|---------------------------------------|kubernetes元件|calico|

阿新 • • 發佈：2022-03-29

[CloudNative：KuberNetes&kubeadm.V11]                                                               [Applications.KuberNetes] [|DevOps|k8s|**5節點**|kubeadm.v1.21.2|kubernetes元件|calico|]







一、kubernetes元件安裝

### --- 下載元件安裝原始碼包：下載版本包——在k8s-master01節點執行
~~~     現在k8s-ha-install版本包

[root@k8s-master01 ~]# cd /root/ ; git clone https://github.com/dotbalo/k8s-ha-install.git
Cloning into 'k8s-ha-install'...
remote: Enumerating objects: 652, done.
remote: Counting objects: 100% (220/220), done.
remote: Compressing objects: 100% (141/141), done.
remote: Total 652 (delta 109), reused 141 (delta 62), pack-reused 432
Receiving objects: 100% (652/652), 19.60 MiB | 6.12 MiB/s, done.
Resolving deltas: 100% (256/256), done.
 
### --- 切換到manual-installation-v1.21.x分支下
~~~     切換到1.21.x版本分支

[root@k8s-master01 ~]# cd /root/k8s-ha-install && git checkout manual-installation-v1.21.x
Branch manual-installation-v1.21.x set up to track remote branch manual-installation-v1.21.x from origin.
Switched to a new branch 'manual-installation-v1.21.x'
二、calico元件安裝——k8s-master01節點執行 
### --- 切換到1.21.x版本分支下並進入到calico安裝目錄下
~~~     切換到1.21.x版本分支

[root@k8s-master01 ~]# cd /root/k8s-ha-install && git checkout manual-installation-v1.21.x && cd calico/
Branch manual-installation-v1.21.x set up to track remote branch manual-installation-v1.21.x from origin.
Switched to a new branch 'manual-installation-v1.21.x'
 
### --- 修改calico-etcd.yaml配置檔案

[root@k8s-master01 calico]# sed -i 's#etcd_endpoints: "http://<ETCD_IP>:<ETCD_PORT>"#etcd_endpoints: "https://192.168.1.11:2379,https://192.168.1.12:2379,https://192.168.1.13:2379"#g' calico-etcd.yaml
[root@k8s-master01 calico]# ETCD_CA=`cat /etc/kubernetes/pki/etcd/ca.crt | base64 | tr -d '\n'`
[root@k8s-master01 calico]# ETCD_CERT=`cat /etc/kubernetes/pki/etcd/server.crt | base64 | tr -d '\n'`
[root@k8s-master01 calico]# ETCD_KEY=`cat /etc/kubernetes/pki/etcd/server.key | base64 | tr -d '\n'`
[root@k8s-master01 calico]# sed -i "s@# etcd-key: null@etcd-key: ${ETCD_KEY}@g; s@# etcd-cert: null@etcd-cert: ${ETCD_CERT}@g; s@# etcd-ca: null@etcd-ca: ${ETCD_CA}@g" calico-etcd.yaml
[root@k8s-master01 calico]# sed -i 's#etcd_ca: ""#etcd_ca: "/calico-secrets/etcd-ca"#g; s#etcd_cert: ""#etcd_cert: "/calico-secrets/etcd-cert"#g; s#etcd_key: "" #etcd_key: "/calico-secrets/etcd-key" #g' calico-etcd.yaml
[root@k8s-master01 calico]# POD_SUBNET=`cat /etc/kubernetes/manifests/kube-controller-manager.yaml | grep cluster-cidr= | awk -F= '{print $NF}'`
[root@k8s-master01 calico]# echo $POD_SUBNET            //pod的網段是寫在controller-manager下的kube-controller-manager.yaml，直接定義變數即可
172.168.0.0/12
[root@k8s-master01 calico]# sed -i 's@# - name: CALICO_IPV4POOL_CIDR@- name: CALICO_IPV4POOL_CIDR@g; s@#   value: "192.168.0.0/16"@  value: '"${POD_SUBNET}"'@g' calico-etcd.yaml
### --- 注意：pod地址更改說明——不執行

~~~     # pod地址說明：注意下面的這個步驟是把calico-etcd.yaml檔案裡面的CALICO_IPV4POOL_CIDR下的網段改成自己的Pod網段，也就是把192.168.x.x/16改成自己的叢集網段，並開啟註釋：
[root@k8s-master01 calico]# vim calico-etcd.yaml 
             - name: CALICO_IPV4POOL_CIDR
               value: "192.168.0.0/12"

~~~     # 所以更改的時候請確保這個步驟的這個網段沒有被統一替換掉，如果被替換掉了，還請改回來：
[root@k8s-master01 calico]# sed -i 's@# - name: CALICO_IPV4POOL_CIDR@- name: CALICO_IPV4POOL_CIDR@g; s@#   value: "192.168.0.0/12"@  value: '"${POD_SUBNET}"'@g' calico-etcd.yaml
### --- 檢視calico-etcd.yaml配置是否生效

[root@k8s-master01 calico]# pwd
/root/k8s-ha-install/calico
[root@k8s-master01 calico]# vim calico-etcd.yaml
~~~     註釋一：key，cert，ca已經匯入進來
  etcd-key: LS0tLS1CRUdJTiBSU0EgU
  etcd-cert: LS0tLS1CRUdJTiBDRVJUSUZJQ0
  etcd-ca: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0t
~~~     註釋二：endpoints已經更改完成
   etcd_endpoints: "https://192.168.1.11:2379,https://192.168.1.12:2379,https://192.168.1.13:2379" 
~~~     註釋三：pod地址已經更改完成
             - name: CALICO_IPV4POOL_CIDR
               value: "192.168.0.0/12"
### --- 部署calico元件
~~~     部署calico元件服務

[root@k8s-master01 calico]# kubectl apply -f calico-etcd.yaml 
secret/calico-etcd-secrets created
configmap/calico-config created
clusterrole.rbac.authorization.k8s.io/calico-kube-controllers created
clusterrolebinding.rbac.authorization.k8s.io/calico-kube-controllers created
clusterrole.rbac.authorization.k8s.io/calico-node created
clusterrolebinding.rbac.authorization.k8s.io/calico-node created
daemonset.apps/calico-node created
serviceaccount/calico-node created
deployment.apps/calico-kube-controllers created
serviceaccount/calico-kube-controllers created
三、檢視服務及叢集狀態
### --- 檢視calico是否部署成功
~~~     檢視calico元件是否啟動完成

[root@k8s-master01 ~]# kubectl get po -n kube-system -owide
NAME                                      READY   STATUS    RESTARTS   AGE     IP               NODE           NOMINATED NODE   READINESS GATES
calico-kube-controllers-cdd5755b9-hjkcq   1/1     Running   0          2m39s   192.168.1.15     k8s-node02     <none>           <none>
calico-node-jsprh                         1/1     Running   0          2m39s   192.168.1.12     k8s-master02   <none>           <none>
calico-node-n97ff                         1/1     Running   0          2m39s   192.168.1.11     k8s-master01   <none>           <none>
calico-node-tk4kz                         1/1     Running   0          2m39s   192.168.1.15     k8s-node02     <none>           <none>
calico-node-vfcxf                         1/1     Running   0          2m39s   192.168.1.13     k8s-master03   <none>           <none>
calico-node-wvwbh                         1/1     Running   0          2m39s   192.168.1.14     k8s-node01     <none>           <none>
### --- 檢視node節點狀態
~~~     檢視node節點狀態是否為ready

[root@k8s-master01 ~]# kubectl get node -owide
NAME           STATUS   ROLES                  AGE   VERSION   INTERNAL-IP    EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION                CONTAINER-RUNTIME
k8s-master01   Ready    control-plane,master   69m   v1.21.2   192.168.1.11   <none>        CentOS Linux 7 (Core)   4.19.12-1.el7.elrepo.x86_64   docker://19.3.15
k8s-master02   Ready    control-plane,master   48m   v1.21.2   192.168.1.12   <none>        CentOS Linux 7 (Core)   4.19.12-1.el7.elrepo.x86_64   docker://19.3.15
k8s-master03   Ready    control-plane,master   33m   v1.21.2   192.168.1.13   <none>        CentOS Linux 7 (Core)   4.19.12-1.el7.elrepo.x86_64   docker://19.3.15
k8s-node01     Ready    <none>                 25m   v1.21.2   192.168.1.14   <none>        CentOS Linux 7 (Core)   4.19.12-1.el7.elrepo.x86_64   docker://19.3.15
k8s-node02     Ready    <none>                 23m   v1.21.2   192.168.1.15   <none>        CentOS Linux 7 (Core)   4.19.12-1.el7.elrepo.x86_64   docker://19.3.15







===============================END===============================

Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart                                                                                                                                                    ——W.S.Landor



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