Pros of kubernetes

• Official repository with comprehensive documentation and extensive community support
• Contains the core Kubernetes components and APIs, allowing for deeper understanding and customization
• Regularly updated with the latest features, bug fixes, and security patches

Cons of kubernetes

• Steeper learning curve for beginners due to its complexity and extensive codebase
• Requires more setup and configuration compared to the follow-me-install-kubernetes-cluster guide
• May be overwhelming for users who just want a simple Kubernetes installation

Code Comparison

follow-me-install-kubernetes-cluster:

# Example installation step
$ sudo apt-get update && sudo apt-get install -y kubelet kubeadm kubectl

kubernetes:

// Example Kubernetes API code
type Pod struct {
    metav1.TypeMeta `json:",inline"`
    metav1.ObjectMeta `json:"metadata,omitempty"`
    Spec PodSpec `json:"spec,omitempty"`
    Status PodStatus `json:"status,omitempty"`
}

The follow-me-install-kubernetes-cluster repository provides a step-by-step guide for installing Kubernetes, making it more accessible for beginners. In contrast, the kubernetes repository contains the actual source code and components of the Kubernetes project, offering a deeper dive into the system's internals but requiring more expertise to navigate and utilize effectively.

Pros of kubernetes-the-hard-way

• More comprehensive and detailed, covering advanced topics
• Focuses on manual installation, providing deeper understanding
• Regularly updated to reflect latest Kubernetes versions

Cons of kubernetes-the-hard-way

• More time-consuming to complete
• Requires more technical expertise
• Less focused on production-ready deployments

Code Comparison

follow-me-install-kubernetes-cluster:

# Install Docker
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum install -y docker-ce
systemctl enable docker && systemctl start docker

kubernetes-the-hard-way:

# Generate the Kubernetes Configuration Files for Authentication
kubectl config set-cluster kubernetes-the-hard-way \
  --certificate-authority=ca.pem \
  --embed-certs=true \
  --server=https://${KUBERNETES_PUBLIC_ADDRESS}:6443 \
  --kubeconfig=kube-proxy.kubeconfig

The code snippets demonstrate the difference in approach. follow-me-install-kubernetes-cluster focuses on practical installation steps, while kubernetes-the-hard-way emphasizes manual configuration and deeper understanding of Kubernetes components.

Both repositories provide valuable resources for learning Kubernetes, but cater to different skill levels and learning objectives. follow-me-install-kubernetes-cluster is more suitable for beginners and those seeking a quicker setup, while kubernetes-the-hard-way is ideal for advanced users and those wanting to gain in-depth knowledge of Kubernetes internals.

Pros of k3s

• Lightweight and resource-efficient, ideal for edge computing and IoT devices
• Easy to install and manage with a single binary
• Includes built-in storage and load balancing solutions

Cons of k3s

• Limited customization options compared to full Kubernetes installations
• May not support all Kubernetes features and add-ons
• Potential performance limitations for large-scale deployments

Code Comparison

follow-me-install-kubernetes-cluster:

# Install etcd
yum -y install etcd
systemctl enable etcd
systemctl start etcd

k3s:

# Install k3s
curl -sfL https://get.k3s.io | sh -
# Check installation
k3s kubectl get node

The follow-me-install-kubernetes-cluster repository provides a step-by-step guide for manually installing a full Kubernetes cluster, which offers more control and customization. In contrast, k3s simplifies the installation process with a single command, making it easier for beginners but potentially limiting advanced configurations.

k3s is more suitable for lightweight environments and quick deployments, while follow-me-install-kubernetes-cluster is better for learning the intricacies of Kubernetes and creating highly customized clusters.

Pros of kubespray

• More actively maintained with frequent updates and a larger community
• Supports multiple cloud providers and on-premises deployments
• Offers more customization options and flexibility in cluster configuration

Cons of kubespray

• Steeper learning curve due to its complexity and extensive feature set
• Requires more system resources for deployment and management
• May be overkill for simple or small-scale Kubernetes deployments

Code Comparison

follow-me-install-kubernetes-cluster:

# Example of manual etcd configuration
etcd \
  --name ${ETCD_NAME} \
  --data-dir=${ETCD_DATA_DIR} \
  --listen-peer-urls=https://${ETCD_IP}:2380 \
  --listen-client-urls=https://${ETCD_IP}:2379,http://127.0.0.1:2379 \
  --advertise-client-urls=https://${ETCD_IP}:2379 \
  --initial-advertise-peer-urls=https://${ETCD_IP}:2380 \
  --initial-cluster=${ETCD_NODES} \
  --initial-cluster-state=new \
  --initial-cluster-token=etcd-cluster-0 \
  --client-cert-auth \
  --trusted-ca-file=/etc/kubernetes/ssl/ca.pem \
  --cert-file=/etc/etcd/ssl/etcd.pem \
  --key-file=/etc/etcd/ssl/etcd-key.pem \
  --peer-client-cert-auth \
  --peer-trusted-ca-file=/etc/kubernetes/ssl/ca.pem \
  --peer-cert-file=/etc/etcd/ssl/etcd.pem \
  --peer-key-file=/etc/etcd/ssl/etcd-key.pem

kubespray:

# Example of etcd configuration in group_vars/etcd.yml
etcd_peer_port: 2380
etcd_client_port: 2379
etcd_data_dir: "/var/lib/etcd"
etcd_cert_dir: "/etc/ssl/etcd/ssl"
etcd_config_dir: "/etc/etcd"
etcd_cert_group: "root"
etcd_script_dir: "{{ bin_dir }}/etcd-scripts"

Pros of KubeSphere

• Provides a comprehensive web-based UI for managing Kubernetes clusters
• Offers built-in monitoring, logging, and alerting capabilities
• Includes multi-tenancy support and fine-grained access control

Cons of KubeSphere

• Requires more resources to run due to additional components
• May have a steeper learning curve for users new to Kubernetes
• Some advanced Kubernetes features might be abstracted or less accessible

Code Comparison

follow-me-install-kubernetes-cluster:

# Install etcd
tar -xvf etcd-v3.4.3-linux-amd64.tar.gz
mv etcd-v3.4.3-linux-amd64/etcd* /opt/k8s/bin

KubeSphere:

apiVersion: installer.kubesphere.io/v1alpha1
kind: ClusterConfiguration
metadata:
  name: ks-installer
  namespace: kubesphere-system
spec:
  persistence:
    storageClass: ""

The follow-me-install-kubernetes-cluster repository provides a step-by-step guide for manually installing Kubernetes components, while KubeSphere offers a more automated installation process with additional features and a user-friendly interface. The code snippets show the difference in approach, with follow-me-install-kubernetes-cluster focusing on individual component installation and KubeSphere using a custom resource definition for cluster configuration.