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The chapter 'Bootstrapping the Kubernetes Worker Nodes' is updated.

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Pick1a1username 2019-02-23 17:23:08 +09:00
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docs/09-bootstrapping-kubernetes-workers.md
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In this chapter, you will bootstrap three Kubernetes worker nodes. The following components will be installed on each node: [runc](https://github.com/opencontainers/runc), [gVisor](https://github.com/google/gvisor), [container networking plugins](https://github.com/containernetworking/cni), [containerd](https://github.com/containerd/containerd), [kubelet](https://kubernetes.io/docs/admin/kubelet), and [kube-proxy](https://kubernetes.io/docs/concepts/cluster-administration/proxies). In this chapter, you will bootstrap three Kubernetes worker nodes. The following components will be installed on each node: [runc](https://github.com/opencontainers/runc), [gVisor](https://github.com/google/gvisor), [container networking plugins](https://github.com/containernetworking/cni), [containerd](https://github.com/containerd/containerd), [kubelet](https://kubernetes.io/docs/admin/kubelet), and [kube-proxy](https://kubernetes.io/docs/concepts/cluster-administration/proxies).
## Prerequisites ## Provisioning a Kubernetes Worker Node
The commands in this chapter must be run on each worker node: `worker-1`, `worker-2`, and `worker-3`. Login to each worker node: ### Download and Distribute Worker Binaries
In `client-1`, Download and distribute the official Kubernetes required binaries:
Note: `kubectl` is already downloaded at the last chapter.
```
$ wget -q --show-progress --https-only --timestamping \
https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.12.0/crictl-v1.12.0-linux-amd64.tar.gz \
https://storage.googleapis.com/kubernetes-the-hard-way/runsc-50c283b9f56bb7200938d9e207355f05f79f0d17 \
https://github.com/opencontainers/runc/releases/download/v1.0.0-rc5/runc.amd64 \
https://github.com/containernetworking/plugins/releases/download/v0.6.0/cni-plugins-amd64-v0.6.0.tgz \
https://github.com/containerd/containerd/releases/download/v1.2.0-rc.0/containerd-1.2.0-rc.0.linux-amd64.tar.gz \
https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kube-proxy \
https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kubelet
$ for num in 1 2 3; do
scp -i ~/.ssh/id_rsa-k8s crictl-v1.12.0-linux-amd64.tar.gz runsc-50c283b9f56bb7200938d9e207355f05f79f0d17 runc.amd64 cni-plugins-amd64-v0.6.0.tgz containerd-1.2.0-rc.0.linux-amd64.tar.gz kube-proxy kubelet kubectl ${USER}@10.240.0.2${num}:~/
done
```
### Running commands in parallel with tmux
After this section, the commands must be run on each worker node: `worker-1`, `worker-2`, and `worker-3`. Login to each worker node:
``` ```
$ ssh -i ~/.ssh/id_rsa-k8s 10.240.0.21 $ ssh -i ~/.ssh/id_rsa-k8s 10.240.0.21
``` ```
### Running commands in parallel with tmux
[tmux](https://github.com/tmux/tmux/wiki) can be used to run commands on multiple virtual machines at the same time. See the [Running commands in parallel with tmux](01-prerequisites.md#running-commands-in-parallel-with-tmux) section in the Prerequisites lab. [tmux](https://github.com/tmux/tmux/wiki) can be used to run commands on multiple virtual machines at the same time. See the [Running commands in parallel with tmux](01-prerequisites.md#running-commands-in-parallel-with-tmux) section in the Prerequisites lab.
## Provisioning a Kubernetes Worker Node ### Installing Dependencies
Install the OS dependencies: Install the OS dependencies:
@ -30,19 +49,7 @@ $ {
> The socat binary enables support for the `kubectl port-forward` command. > The socat binary enables support for the `kubectl port-forward` command.
### Download and Install Worker Binaries ### Install Worker Binaries
```
$ wget -q --show-progress --https-only --timestamping \
https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.12.0/crictl-v1.12.0-linux-amd64.tar.gz \
https://storage.googleapis.com/kubernetes-the-hard-way/runsc-50c283b9f56bb7200938d9e207355f05f79f0d17 \
https://github.com/opencontainers/runc/releases/download/v1.0.0-rc5/runc.amd64 \
https://github.com/containernetworking/plugins/releases/download/v0.6.0/cni-plugins-amd64-v0.6.0.tgz \
https://github.com/containerd/containerd/releases/download/v1.2.0-rc.0/containerd-1.2.0-rc.0.linux-amd64.tar.gz \
https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kubectl \
https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kube-proxy \
https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kubelet
```
Create the installation directories: Create the installation directories:
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EOF EOF
``` ```
### Start the Worker Services
### Starting the Worker Services
``` ```
$ { $ {
@ -289,10 +297,10 @@ $ {
> The virtual machines created in this tutorial will not have permission to complete this section. Run the following commands from the same machine used to create the compute instances. > The virtual machines created in this tutorial will not have permission to complete this section. Run the following commands from the same machine used to create the compute instances.
List the registered Kubernetes nodes: In `client-1`, list the registered Kubernetes nodes:
``` ```
$ ssh -i ~/.ssh/id_rsa-k8s.pub 10.240.0.11 "kubectl get nodes --kubeconfig admin.kubeconfig" $ ssh -i ~/.ssh/id_rsa-k8s 10.240.0.11 "kubectl get nodes --kubeconfig admin.kubeconfig"
``` ```
> output > output