既然是离线安装，当然需要先下载离线安装包了，由于官方的离线安装包服务器被墙，因此想下载离线包就需要一个可以访问谷歌的服务器（作者这里使用的阿里云的美国节点，竞价示例，用几分钟就就行，很便宜的，文章底部有最新的rpm包下载链接^_^），下载步骤如下：
- 配置安装源并关闭防火墙，参考官网https://kubernetes.io/docs/setup/independent/install-kubeadm/
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11cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOF
setenforce 0
yum -y update - 下载安装包，执行命令
yum -y install --downloadonly --downloaddir=k8s kubelet kubeadm kubectl，即将 kubelet、kubeadm、kubectl 的安装包及其依赖安装到 k8s 目录1
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39。。。
Dependencies Resolved
=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
kubeadm x86_64 1.8.3-0 kubernetes 15 M
kubectl x86_64 1.8.3-0 kubernetes 7.3 M
kubelet x86_64 1.8.3-0 kubernetes 16 M
Installing for dependencies:
kubernetes-cni x86_64 0.5.1-1 kubernetes 7.4 M
socat x86_64 1.7.3.2-2.el7 base 290 k
Transaction Summary
=================================================================================================================================================================================================================
Install 3 Packages (+2 Dependent packages)
Total download size: 46 M
Installed size: 243 M
Background downloading packages, then exiting:
warning: /root/k8s/ae43f92f96e828779f9744b3660e207199d97dda22eb44c054d2f3150da76b94-kubectl-1.8.3-0.x86_64.rpm.11960.tmp: Header V4 RSA/SHA1 Signature, key ID 3e1ba8d5: NOKEY ] 17 MB/s | 11 MB 00:00:02 ETA
Public key for ae43f92f96e828779f9744b3660e207199d97dda22eb44c054d2f3150da76b94-kubectl-1.8.3-0.x86_64.rpm.11960.tmp is not installed
(1/5): ae43f92f96e828779f9744b3660e207199d97dda22eb44c054d2f3150da76b94-kubectl-1.8.3-0.x86_64.rpm | 7.3 MB 00:00:01
(2/5): cab6b288e91e613d81c63101c7d293059a4a9f2c0795228042c880f770a9ec60-kubeadm-1.8.3-0.x86_64.rpm | 15 MB 00:00:01
(3/5): socat-1.7.3.2-2.el7.x86_64.rpm | 290 kB 00:00:00
(4/5): 79f9ba89dbe7000e7dfeda9b119f711bb626fe2c2d56abeb35141142cda00342-kubernetes-cni-0.5.1-1.x86_64.rpm | 7.4 MB 00:00:00
(5/5): a53acfe63a475bf61661036c12890217f4921a6d6d6c3e6ecb4c598fc11cac19-kubelet-1.8.3-0.x86_64.rpm | 16 MB 00:00:01
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 18 MB/s | 46 MB 00:00:02
exiting because "Download Only" specified
[root@iZrj9fnvr82ccmtwd4x5nhZ ~]# ll k8s/
total 46760
-rw-r--r-- 1 root root 7801930 Nov 20 14:28 79f9ba89dbe7000e7dfeda9b119f711bb626fe2c2d56abeb35141142cda00342-kubernetes-cni-0.5.1-1.x86_64.rpm
-rw-r--r-- 1 root root 16516710 Nov 20 14:28 a53acfe63a475bf61661036c12890217f4921a6d6d6c3e6ecb4c598fc11cac19-kubelet-1.8.3-0.x86_64.rpm
-rw-r--r-- 1 root root 7618130 Nov 20 14:28 ae43f92f96e828779f9744b3660e207199d97dda22eb44c054d2f3150da76b94-kubectl-1.8.3-0.x86_64.rpm
-rw-r--r-- 1 root root 15618410 Nov 20 14:28 cab6b288e91e613d81c63101c7d293059a4a9f2c0795228042c880f770a9ec60-kubeadm-1.8.3-0.x86_64.rpm
-rw-r--r-- 1 root root 296632 Aug 11 03:50 socat-1.7.3.2-2.el7.x86_64.rpm - 将以上 rpm 包拷贝到需要安装 kubeadm 的机器，执行
setenforce 0和yum -y localinstall *.rpm即完成安装1
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66[niuhp@localhost rpm]$ setenforce 0
setenforce: SELinux is disabled
[niuhp@localhost rpm]$ sudo yum -y localinstall *.rpm
Loaded plugins: fastestmirror, langpacks
Examining kubeadm-1.8.3-0.x86_64.rpm: kubeadm-1.8.3-0.x86_64
Marking kubeadm-1.8.3-0.x86_64.rpm to be installed
Examining kubectl-1.8.3-0.x86_64.rpm: kubectl-1.8.3-0.x86_64
Marking kubectl-1.8.3-0.x86_64.rpm to be installed
Examining kubelet-1.8.3-0.x86_64.rpm: kubelet-1.8.3-0.x86_64
Marking kubelet-1.8.3-0.x86_64.rpm to be installed
Examining kubernetes-cni-0.5.1-1.x86_64.rpm: kubernetes-cni-0.5.1-1.x86_64
Marking kubernetes-cni-0.5.1-1.x86_64.rpm to be installed
Examining socat-1.7.3.2-2.el7.x86_64.rpm: socat-1.7.3.2-2.el7.x86_64
Marking socat-1.7.3.2-2.el7.x86_64.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package kubeadm.x86_64 0:1.8.3-0 will be installed
---> Package kubectl.x86_64 0:1.8.3-0 will be installed
---> Package kubelet.x86_64 0:1.8.3-0 will be installed
---> Package kubernetes-cni.x86_64 0:0.5.1-1 will be installed
---> Package socat.x86_64 0:1.7.3.2-2.el7 will be installed
--> Finished Dependency Resolution
base/7/x86_64 | 3.6 kB 00:00:00
epel/x86_64 | 4.3 kB 00:00:00
extras/7/x86_64 | 3.4 kB 00:00:00
gomedc/7/x86_64 | 2.9 kB 00:00:00
updates/7/x86_64 | 3.4 kB 00:00:00
Dependencies Resolved
=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
kubeadm x86_64 1.8.3-0 /kubeadm-1.8.3-0.x86_64 89 M
kubectl x86_64 1.8.3-0 /kubectl-1.8.3-0.x86_64 36 M
kubelet x86_64 1.8.3-0 /kubelet-1.8.3-0.x86_64 89 M
kubernetes-cni x86_64 0.5.1-1 /kubernetes-cni-0.5.1-1.x86_64 28 M
socat x86_64 1.7.3.2-2.el7 /socat-1.7.3.2-2.el7.x86_64 1.1 M
Transaction Summary
=================================================================================================================================================================================================================
Install 5 Packages
Total size: 243 M
Installed size: 243 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : socat-1.7.3.2-2.el7.x86_64 1/5
Installing : kubernetes-cni-0.5.1-1.x86_64 2/5
Installing : kubelet-1.8.3-0.x86_64 3/5
Installing : kubectl-1.8.3-0.x86_64 4/5
Installing : kubeadm-1.8.3-0.x86_64 5/5
Verifying : kubelet-1.8.3-0.x86_64 1/5
Verifying : kubectl-1.8.3-0.x86_64 2/5
Verifying : socat-1.7.3.2-2.el7.x86_64 3/5
Verifying : kubeadm-1.8.3-0.x86_64 4/5
Verifying : kubernetes-cni-0.5.1-1.x86_64 5/5
Installed:
kubeadm.x86_64 0:1.8.3-0 kubectl.x86_64 0:1.8.3-0 kubelet.x86_64 0:1.8.3-0 kubernetes-cni.x86_64 0:0.5.1-1 socat.x86_64 0:1.7.3.2-2.el7
Complete! - 最后一步，启动！
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2[niuhp@localhost rpm]$ sudo systemctl enable kubelet && sudo systemctl start kubelet
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /etc/systemd/system/kubelet.service.
参考
https://kubernetes.io/docs/setup/independent/install-kubeadm/
kubeadm 安装包下载
- http://static.niuhp.com/k8s/rpm/socat-1.7.3.2-2.el7.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubernetes-cni-0.5.1-1.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubeadm-1.8.3-0.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubectl-1.8.3-0.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubelet-1.8.3-0.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubeadm-1.8.4-0.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubectl-1.8.4-0.x86_64.rpm
- http://static.niuhp.com/k8s/rpm/kubelet-1.8.4-0.x86_64.rpm
