實驗環境

• cloud端：4 core、8G RAM、OS: ubuntu 16.04
• edge端：2 core、4G RAM、OS: ubuntu 16.04
• 全部使用root權限操作

安裝前置作業

1. Cloud 端 安裝 (Minilize 2 Core / 2G up)
   |-- k8s / kubeadm / kubectl / kubelet
   |-- Docker
   |-- OpenSSL

2. Edge 端 安裝 (樹梅派可安裝)
   |-- Docker
   |-- OpenSSL

Docker 安裝 (Cloud / Edge)

# Install Docker CE
## Set up the repository:
### Install packages to allow apt to use a repository over HTTPS
apt-get update && apt-get install apt-transport-https ca-certificates curl software-properties-common

### Add Docker’s official GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -

### Add Docker apt repository.
add-apt-repository \
  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) \
  stable"

## Install Docker CE.
apt-get update && apt-get install docker-ce=18.06.2~ce~3-0~ubuntu

# Setup daemon.
cat > /etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

mkdir -p /etc/systemd/system/docker.service.d

# Restart docker.
systemctl daemon-reload
systemctl restart docker

Kubernetes 安裝 (Cloud)

apt-get update && apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
apt-get update
apt-get install -y kubelet kubeadm kubectl
apt-mark hold kubelet kubeadm kubectl

KubeEdge 安裝前置作業 (Cloud)

1. 關閉系統 Swap 交換區

swapoff -a

2. 初始化 kubernetes 服務主叢集 (混和 k8s Cluster 需使用 CNI)

kubeadm init  --pod-network-cidr=10.244.0.0/16
mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config

3. 修改 /etc/kubernetes/manifests/kube-apiserver.yaml 添加 兩個 api

--insecure-bind-address=0.0.0.0
--insecure-port=8080

KubeEdge 安裝 (Cloud / Edge)

1. 進到/root資料夾，下載github 專案

sudo -i
git clone https://github.com/kubeedge/kubeedge.git

2. cloud端生成認證鑰匙(edge端不用生成鑰匙)

cd kubeedge/build/tools
./certgen.sh genCertAndKey edge
ls /etc/kubeedge/ca
ls /etc/kubeedge/certs

3. 將cloud端鑰匙複製到Edge端（cloud與edge需使用同一把金鑰）

• 在Edge端使用root權限新增兩個資料夾

mkdir /etc/kubeedge/ca
mkdir /etc/kubeedge/certs

• 將cloud端上的/etc/kubeedge/ca、/etc/kubeedge/certs這兩個資料夾的檔案全部丟到Edge端上對應的資料夾

4. 下載 kubeedge v0.3 binary包

cd /root
wget https://github.com/kubeedge/kubeedge/releases/download/v0.3.0-beta.0/kubeedge-v0.3.0-beta.0-linux-amd64.tar.gz

5. 解壓縮 binary 包

tar zxvf kubeedge-v0.3.0-beta.0-linux-amd64.tar.gz

• 做到這邊大家的KubeEdge環境都安裝好了，在下一篇會介紹要如何實際運行KubeEdge