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kube

由于不能从google container上直接pull镜像,所以这里通过docker hub的Automated Builds功能从项目的dockerfile中Build到docker的官方服务器上,然后再从它们上面拉取.

kube 1.5.3需要的镜像:

REPOSITORY                                               TAG
gcr.io/google_containers/kube-apiserver-amd64            v1.5.3
gcr.io/google_containers/kube-controller-manager-amd64   v1.5.3
gcr.io/google_containers/kube-proxy-amd64                v1.5.3
gcr.io/google_containers/kube-scheduler-amd64            v1.5.3
gcr.io/google_containers/kubernetes-dashboard-amd64      v1.5.0
gcr.io/google_containers/etcd-amd64                      3.0.14-kubeadm
gcr.io/google_containers/kubedns-amd64                   1.9
gcr.io/google_containers/dnsmasq-metrics-amd64           1.0
gcr.io/google_containers/kube-dnsmasq-amd64              1.4
gcr.io/google_containers/kube-discovery-amd64            1.0
gcr.io/google_containers/exechealthz-amd64               1.2
gcr.io/google_containers/pause-amd64                     3.0

docker hub上设置

由于docker hub不能后期更改一个image的tag,所以每次更新kubernetes时,都在build settings中,手动增加一个版本对应文件

更改tag

images=(kube-proxy-amd64:v1.5.3 kube-scheduler-amd64:v1.5.3 kube-controller-manager-amd64:v1.5.3 kube-apiserver-amd64:v1.5.3 etcd-amd64:3.0.14-kubeadm kube-discovery-amd64:1.0 pause-amd64:3.0 kubedns-amd64:1.9 dnsmasq-metrics-amd64:1.0 kube-dnsmasq-amd64:1.4 exechealthz-amd64:1.2)
for imageName in ${images[@]} ; do
  docker pull ist0ne/$imageName
  docker tag ist0ne/$imageName gcr.io/google_containers/$imageName
  docker rmi ist0ne/$imageName
done

images=(heapster:canary heapster_grafana:v3.1.1 heapster_influxdb:v0.7)
for imageName in ${images[@]} ; do
  docker pull ist0ne/$imageName
  docker tag ist0ne/$imageName kubernetes/$imageName
done

安装必要的软件包

yum install -y ebtables socat
rpm -ivh kubernetes-el7-x86_64/567600102f687e0f27bd1fd3d8211ec1cb12e71742221526bb4e14a412f4fdb5-kubernetes-cni-0.3.0.1-0.07a8a2.x86_64.rpm
rpm -ivh kubernetes-el7-x86_64/._8a299eb1db946b2bdf01c5d5c58ef959e7a9d9a0dd706e570028ebb14d48c42e-kubelet-1.5.1-0.x86_64.rpm
rpm -ivh kubernetes-el7-x86_64/8a299eb1db946b2bdf01c5d5c58ef959e7a9d9a0dd706e570028ebb14d48c42e-kubelet-1.5.1-0.x86_64.rpm
rpm -ivh kubernetes-el7-x86_64/._93af9d0fbd67365fa5bf3f85e3d36060138a62ab77e133e35f6cadc1fdc15299-kubectl-1.5.1-0.x86_64.rpm
rpm -ivh kubernetes-el7-x86_64/93af9d0fbd67365fa5bf3f85e3d36060138a62ab77e133e35f6cadc1fdc15299-kubectl-1.5.1-0.x86_64.rpm

通过kubeadm安装

kubeadm init --use-kubernetes-version v1.5.3

当通过kubeadm安装后,还需要安装网络

由于 pod 可能运行在不同的机器上,所以为了能让 pod 互相通信,就需要安装 pod 网络。这里使用的方案就是 weave net:

kubectl apply -f https://git.io/weave-kube

因为之前的 kube-dns addon 是依赖 pod 网络的,所以在没有部署 pod 网络之前,kube-dns 都会报错,因此只需要检查 kube-dns 是否成功就知道 pod 网络有没有成功了。

kubectl get pods --all-namespaces

如果docker hub也不能访问

如果docker hub也不能访问,那么可以通过daocloud的加速,它会在docker的配置--registry-mirro中加一个镜像服务器,但是通过它还是不能访问google container的镜像,所以还是需要上面在docker hub中配置

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