k8s渐进

基本命令介绍（推荐）

1.  The Almighty Pause Container

2. What are Kubernetes Pods Anyway?

3.中文版官方翻译【版本2】 提供了很多interactive 体验环境。也可以自行安装 Minikube

a.  http://play-with-k8s.com

使用手册

• Play with Kubernetes

• # . Initializes cluster master node:
  kubeadm init --apiserver-advertise-address $(hostname -i)
  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config
  source <(kubectl completion bash)
  
  # . Initialize cluster networking:
  kubectl apply -n kube-system -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 |tr -d '\n')"
  # You should now deploy a pod network to the cluster.
  # Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  #  http://kubernetes.io/docs/admin/addons/
  
  # You can now join any number of machines by running the following on each node
  # as root:
  #
  #  kubeadm join --token c23f1c.f56bcf51048b7ebe 192.168.0.13: --discovery-token-ca-cert-hash sha256:5aad0ba75d4c8d8e986f0d8b99a78fbcf8d107e8558baaf4097eadc7e98bc1aa
  
  # . (Optional) Create an nginx deployment:
  kubectl apply -f https://k8s.io/docs/user-guide//nginx-app.yaml

  注意这个命令的的token， 每次都是不一样的。 每次都要从maste上拷贝一下， 到每个node节点上。  # kubeadm join --token c23f1c.f56bcf51048b7ebe 192.168.0.13:6443 --discovery-token-ca-cert-hash sha256:5aad0ba75d4c8d8e986f0d8b99a78fbcf8d107e8558baaf4097eadc7e98bc1aa

• Run 'kubectl get nodes' on the master to see this machine join.
• alt+enter 全屏切换

b. Katacoda playground

使用手册

总共提供了14个例子

• Katacoda

4. kubernetes 简介： kubelet 和 pod

5. federation

6. borg and k8s

7. vagrant 轻松搭建Kubernetes 1.2版运行环境

8. 轻松了解Kubernetes部署功能

9. KUBERNETES DEPLOYMENT 實現滾動升級

10. tasks

使用curl安装， 已实验。 √

Configure Access to Multiple Clusters   ×

Download as part of the Google Cloud SDK ×

# https://cloud.google.com/sdk/docs/quickstart-linux
sudo apt install python2.

wget https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-sdk-184.0.0-linux-x86_64.tar.gz

tar -zxvf  google-cloud-sdk*.tar.gz

./google-cloud-sdk/install.sh

gcloud init

Install with snap on Ubuntu  ×

Picking the Right Solution. ×

   how kubeconfig files are merged, see Organizing Cluster Access Using kubeconfig Files .√

各种命令详解，及其例子 kubectl config √

11. configmap 类似openstack的cloud init ？？

12.  Pull an Image from a Private Registry  需要上传一个image

kubectl create secret docker-registry regsecret --docker-server=https://hub.docker.com/r/lvmxh/k8s-tasks --docker-username=lvmxh --docker-password=yourpassword --docker-email=lvmxh@126.com

13.  案例分析，这个比较复杂，还没有分析

https://kubernetes.io/docs/tasks/run-application/run-replicated-stateful-application/

14. K8s的标签能自动发现收集上报吗？

https://kubernetes.io/docs/tasks/manage-gpus/scheduling-gpus/

比如 kubelet或者其他的组件，去上报一些标签。

15. Emptydir实现原理是啥？

为啥生命周期是pod， 而不是container？

有没有开发过自己的FlexVolume插件？

16. 服务发现与负载均衡

Ingress controller, Service Load Balancer 和 custom Load Balancer 没有用过

17. StorageClass

这个例子需要练习

18. debug

19. 云原生