離線安裝minikube—1.10.1

基礎環境:

Virtual box

OS: Ubuntu:16.04

enp0s3:(Hostonly)192.168.56.102(提供pc端訪問服務器-hostonly)

enp0s8:(NAT)10.0.3.15(訪問外網,因爲nat映射端原因,本地pc無法訪問)

minikube使用的all-in-one方式,所以就放在了一臺vm上,配置最好大一點,不然會卡!


離線安裝包和鏡像

鏈接:https://pan.baidu.com/s/10oqK80w5SJD2npOYpLZEkg 密碼:u95p
1、安裝docker-ce環境(引用官網)

https://docs.docker.com/install/linux/docker-ce/ubuntu/#install-docker-ce-1

sudo apt-get update

Install packages to allow apt to use arepository over HTTPS:

sudo apt-get install \

   apt-transport-https \

   ca-certificates \

    curl\

   software-properties-common

Add Docker's official GPG key:

curl -fsSLhttps://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Verify that you now have the key with thefingerprint 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88, by searching forthe last 8 characters of the fingerprint.

sudo apt-key fingerprint 0EBFCD88

sudo add-apt-repository \

  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \

  $(lsb_release -cs) \

  stable"

Install Docker CE,Update the apt package index.

sudo apt-get update

Install the latest version of Docker CE, or goto the next step to install a specific version:

sudo apt-get install docker-ce

sudo systemctl enable docker

sudo systemctl start docker

2、需要下載minikube、kubectl(參考官網github)

https://github.com/kubernetes/minikube

下載命令:(由於防火牆端緣故,無法下載,在國外服務器拉取下來,本地離線安裝)

curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64&& chmod +x minikube

curl -Lo kubectlhttps://storage.googleapis.com/kubernetes-release/release/$(curl -shttps://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl&& chmod +x kubectl

離線安裝操作:

cd /root

chmod +x minikube

mv minikube /usr/local/bin/

ln -sf /usr/local/bin/minikube/usr/bin/minikube

cd /root

chmod +x kubectl

mv kubectl /usr/local/bin

ln -sf /usr/local/bin/kubectl /usr/bin/kubectl

3、初始化環境變量:

export MINIKUBE_WANTUPDATENOTIFICATION=false

export MINIKUBE_WANTREPORTERRORPROMPT=false

export MINIKUBE_HOME=$HOME

export CHANGE_MINIKUBE_NONE_USER=true

mkdir -p $HOME/.kube

touch $HOME/.kube/config

export KUBECONFIG=$HOME/.kube/config

4、啓動minikube

curl -Lo kubeadm http://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm

curl -Lo kubelet http://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubelet

sudo -E ./minikube start --vm-driver=none

--vm-driver=none (本身就是虛擬機,所以不需要將minikube再次安裝到虛機裏面,虛機中再安裝虛機我的機器扛不住)

在這個過程中minikube需要下載kubelet、kubeadm,以及拉取所需要到鏡像,由於防火牆到原因,這就卡住了,再也不能進行下去了,所以啊,我挨個再國外服務器上拉取到鏡像和程序包。

運行一下上面curl兩句下載命令,不然會報錯,因爲下載kubeadm、kubelet時採用的是https,但是無法連接,使用http下載以後就可以跳過

Starting local Kubernetes v1.10.0 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Downloading kubeadm v1.10.0
Downloading kubelet v1.10.0

這塊了,不然會報一下這個錯:

E0702 15:58:46.347477   20746 start.go:252] Error updating cluster:  downloading binaries: downloading kubeadm: Error downloading kubeadm v1.10.0: failed to download: failed to download to temp file: download failed: 5 error(s) occurred:

* Temporary download error: Get https://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm: net/http: TLS handshake timeout
* Temporary download error: Get https://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm: dial tcp 172.217.160.80:443: i/o timeout
* Temporary download error: Get https://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm: net/http: TLS handshake timeout
* Temporary download error: Get https://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm: dial tcp 172.217.160.80:443: i/o timeout
* Temporary download error: Get https://storage.googleapis.com/kubernetes-release/release/v1.10.0/bin/linux/amd64/kubeadm: dial tcp 172.217.160.80:443: i/o timeout

以下是所需要的鏡像列表:

k8s.gcr.io/kube-apiserver-amd64:v1.10.0

k8s.gcr.io/kube-scheduler-amd64:v1.10.0

k8s.gcr.io/kube-controller-manager-amd64:v1.10.0

k8s.gcr.io/kube-proxy-amd64:v1.10.0

k8s.gcr.io/etcd-amd64:3.1.12

k8s.gcr.io/k8s-dns-dnsmasq-nanny-amd64:1.14.8

k8s.gcr.io/k8s-dns-sidecar-amd64:1.14.8

k8s.gcr.io/k8s-dns-kube-dns-amd64:1.14.8

k8s.gcr.io/pause-amd64:3.1

quay.io/coreos/flannel:v0.9.1-amd64

k8s.gcr.io/kube-addon-manager:v8.6

k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.1

gcr.io/k8s-minikube/storage-provisioner:v1.8.1

如果不出意外應該就可以安裝成功了!

安裝完成後

root@ubuntu:~# sudo -E ./minikube start --vm-driver=none                                                                
Starting local Kubernetes v1.10.0 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Downloading kubeadm v1.10.0
Downloading kubelet v1.10.0
Finished Downloading kubelet v1.10.0
Finished Downloading kubeadm v1.10.0
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
Starting cluster components...
Kubectl is now configured to use the cluster.
===================
WARNING: IT IS RECOMMENDED NOT TO RUN THE NONE DRIVER ON PERSONAL WORKSTATIONS
The 'none' driver will run an insecure kubernetes apiserver as root that may leave the host vulnerable to CSRF attacks

Loading cached images from config file.

5、查看狀態

查看node節點狀態

root@ubuntu:~/1.10.1# kubectl get nodes

NAME      STATUS    ROLES     AGE      VERSION

minikube  Ready     master    20h      v1.10.0

查看pod狀態

root@ubuntu:~/1.10.1# kubectl get pods--all-namespaces

NAMESPACE    NAME                                    READY     STATUS   RESTARTS   AGE

kube-system  etcd-minikube                          1/1       Running   2         1h

kube-system  kube-addon-manager-minikube            1/1       Running   1         20h

kube-system  kube-apiserver-minikube                1/1       Running   1         1h

kube-system  kube-controller-manager-minikube       1/1       Running   2         1h

kube-system  kube-dns-86f4d74b45-pndzp              3/3       Running   16        20h

kube-system  kube-proxy-pgjpd                       1/1       Running   0         1h

kube-system  kube-scheduler-minikube                1/1       Running   5         20h

kube-system  kubernetes-dashboard-5498ccf677-scd97  1/1       Running   4         18h

kube-system  storage-provisioner                     1/1       Running  1          18h

看下READY和STATUS狀態,如果正常就一切ok,萬事大吉了。

如果有問題,那就看看什麼原因,例如查看dashboard,可以根據具體問題作出具體的解決方法(下面描述是沒問題)

root@ubuntu:~# kubectl describe--namespace=kube-system pod kubernetes-dashboard-5498ccf677-scd97

Name:          kubernetes-dashboard-5498ccf677-scd97

Namespace:     kube-system

Node:          minikube/10.0.3.15

Start Time:    Thu, 21 Jun 2018 17:11:28 +0800

Labels:        addonmanager.kubernetes.io/mode=Reconcile

               app=kubernetes-dashboard

               pod-template-hash=1054779233

               version=v1.8.1

Annotations:   

Status:        Running

IP:            172.17.0.3

Controlled By: ReplicaSet/kubernetes-dashboard-5498ccf677

Containers:

 kubernetes-dashboard:

   Container ID:  docker://e5b6c1ae90d34be67da0c51cf4c0924ff7868a7ec76603f9810318b1ed9335b3

   Image:         k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.1

    Image ID:      docker://sha256:e94d2f21bc0c297cb74c1dfdd23e2eace013f532c60726601af67984d97f718a

   Port:           9090/TCP

    HostPort:      0/TCP

   State:          Running

     Started:      Fri, 22 Jun 201814:18:41 +0800

    LastState:     Terminated

     Reason:       Error

     Exit Code:    1

     Started:      Fri, 22 Jun 201814:17:45 +0800

     Finished:     Fri, 22 Jun 201814:18:18 +0800

   Ready:          True

   Restart Count:  6

   Liveness:       http-gethttp://:9090/ delay=30s timeout=30s period=10s #success=1 #failure=3

   Environment:   

   Mounts:

     /var/run/secrets/kubernetes.io/serviceaccount from default-token-6xhk9(ro)

Conditions:

 Type           Status

  Initialized   True

 Ready          True

 PodScheduled   True

Volumes:

 default-token-6xhk9:

   Type:        Secret (a volumepopulated by a Secret)

   SecretName:  default-token-6xhk9

   Optional:    false

QoS Class:      BestEffort

Node-Selectors: 

Tolerations:    node.kubernetes.io/not-ready:NoExecute for 300s

                node.kubernetes.io/unreachable:NoExecute for 300s

Events:

 Type     Reason                 Age                From               Message

 ----     ------                 ----               ----               -------

 Normal  SuccessfulMountVolume  29m                kubelet, minikube  MountVolume.SetUp succeeded for volume"default-token-6xhk9"

 Normal   SandboxChanged         29m                kubelet, minikube  Pod sandbox changed, it will be killed andre-created.

 Warning  Unhealthy              28m                kubelet, minikube  Liveness probe failed: Gethttp://172.17.0.3:9090/: dial tcp 172.17.0.3:9090: getsockopt: connectionrefused

 Warning  BackOff                28m (x2 over 28m)  kubelet, minikube  Back-off restarting failed container

 Normal   Pulled                 28m (x2 over 29m)  kubelet, minikube  Container image"k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.1" already present onmachine

  Normal   Created                28m (x2 over 29m)  kubelet, minikube  Created container

 Normal   Started                28m (x2 over 29m)  kubelet, minikube  Started container

6、啓動dashboard

root@ubuntu:~# minikube  dashboard

訪問dashboard的是查看具體url:

root@ubuntu:~# minikube  dashboard --url

http://10.0.3.15:30000

由於virtual是雙網卡的問題,所以minikube返回的url是不能訪問的,10.0.3.15這個IP是內部IP,pc端是無法訪問的,所以需要在iptalbes上做一下路由轉發!

臨時:

echo "1">/proc/sys/net/ipv4/ip_forward

固定:修改/etc/sysctl.conf,取消這一行的註釋:

net.ipv4.ip_forward= 1

root@ubuntu:~#sysctl -p

設置iptables規則:

iptables -t nat -A POSTROUTING -j MASQUERADE

再訪問:http://192.168.56.102:30000就可以訪問了
離線安裝minikube—1.10.1

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