Configuring Linux systems to support container cloud development

Configuring Linux systems to support container cloud development

Container Cloud Development (Container Cloud Development) is a technology that isolates application development and deployment environments from each other. It uses containerization technology to package applications and their dependencies into images, which are managed and deployed uniformly through the container management platform. In the process of configuring a container cloud development environment on a Linux system, we will use Docker and Kubernetes, two popular open source tools.

The following are the steps and related code examples to configure a Linux system to support container cloud development.

Step 1: Install Docker
Docker is a containerization platform, we first need to install it.

# 更新包管理工具
sudo apt-get update

# 安装Docker依赖项
sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common

# 添加Docker官方GPG密钥
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

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

# 更新包管理工具
sudo apt-get update

# 安装Docker
sudo apt-get install -y docker-ce

Step 2: Configure the Docker image accelerator
In order to speed up the speed of Docker pulling images, we can configure the Docker image accelerator.

# 创建或编辑Docker配置文件
sudo nano /etc/docker/daemon.json

In the opened file, add the following content (assuming we choose to use Alibaba Cloud as the image accelerator):

{
  "registry-mirrors": ["https://[YOUR_REGION_ID].mirror.aliyuncs.com"]
}

After saving the file, restart the Docker service to make the configuration take effect.

sudo systemctl restart docker

Step 3: Install Kubernetes
Kubernetes is a container orchestration platform used to manage and schedule containerized applications.

# 安装Kubernetes依赖项
sudo apt-get install -y apt-transport-https
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

# 更新包管理工具
sudo apt-get update

# 安装Kubernetes
sudo apt-get install -y kubelet kubeadm kubectl

Step 4: Initialize the Kubernetes master node
In the Kubernetes cluster, a node is designated as the master node (Master). We need to initialize this master node.

# 初始化主节点
sudo kubeadm init --pod-network-cidr=10.244.0.0/16

After the initialization is completed, Kubernetes will provide some commands for us to use when deploying nodes later. Make a note of these commands, we will use them in the next steps.

Step 5: Install the network plug-in
In the Kubernetes cluster, we need to install the network plug-in to enable containers to communicate with each other.

# 安装网络插件（这里以Flannel为例）
sudo kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

Step 6: Join nodes
Now, we will add other Linux system nodes to the Kubernetes cluster.

# 在主节点执行步骤4的命令中，复制并运行输出的kubeadm join命令。

# 在其他节点上运行kubeadm join命令以加入集群。

At this point, we have completed the process of configuring the Linux system to support container cloud development. Now you can start deploying and managing your applications using the benefits of container cloud development!

Summary
By configuring a Linux system to support container cloud development, we can easily leverage containerization technology to manage and deploy applications. With the help of Docker and Kubernetes, two powerful open source tools, we can develop and operate more efficiently. I hope the steps and code examples provided in this article are helpful!

The above is the detailed content of Configuring Linux systems to support container cloud development. For more information, please follow other related articles on the PHP Chinese website!