Linux Container Orchestration

Linux Container Orchestration Guide

Complete beginner-friendly guide to container orchestration on Linux, covering Arch Linux, CachyOS, and other distributions including Kubernetes, Docker Swarm, and container management.

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Table of Contents

1. Kubernetes Setup
2. Docker Swarm
3. Container Management
4. Troubleshooting

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Kubernetes Setup

Install kubectl

Install kubectl:

# Arch/CachyOS
sudo pacman -S kubectl

# Debian/Ubuntu
sudo apt install kubectl

# Fedora
sudo dnf install kubectl

# Verify
kubectl version --client

Install minikube

Install minikube:

# Arch/CachyOS
yay -S minikube

# Debian/Ubuntu
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube

# Fedora
sudo dnf install minikube

# Start minikube
minikube start

# Check status
kubectl get nodes

Install k3s

Install k3s (lightweight Kubernetes):

# Install k3s
curl -sfL https://get.k3s.io | sh

# Check status
sudo systemctl status k3s

# Get kubeconfig
sudo cat /etc/rancher/k3s/k3s.yaml

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Docker Swarm

Initialize Swarm

Setup Swarm:

# Install Docker
# Arch/CachyOS
sudo pacman -S docker

# Debian/Ubuntu
sudo apt install docker.io

# Fedora
sudo dnf install docker

# Start Docker
sudo systemctl enable --now docker

# Initialize swarm
docker swarm init

# Join swarm (on other nodes)
docker swarm join --token TOKEN manager-ip:2377

Manage Swarm

Swarm commands:

# List nodes
docker node ls

# Create service
docker service create --name myservice nginx

# Scale service
docker service scale myservice=3

# List services
docker service ls

# Remove service
docker service rm myservice

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Container Management

Docker Compose

Install Docker Compose:

# Arch/CachyOS
sudo pacman -S docker-compose

# Debian/Ubuntu
sudo apt install docker-compose

# Fedora
sudo dnf install docker-compose

Create compose file:

# Create compose file
vim docker-compose.yml

Example:

version: '3'
services:
  web:
    image: nginx
    ports:
      - "80:80"
  db:
    image: postgres
    environment:
      POSTGRES_PASSWORD: password

Run:

# Start services
docker-compose up -d

# Stop services
docker-compose down

# View logs
docker-compose logs

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Troubleshooting

Container Issues

Check containers:

# List containers
docker ps -a

# Check logs
docker logs container-name

# Inspect
docker inspect container-name

# Execute command
docker exec -it container-name /bin/bash

Kubernetes Issues

Check cluster:

# Get nodes
kubectl get nodes

# Get pods
kubectl get pods

# Describe pod
kubectl describe pod pod-name

# View logs
kubectl logs pod-name

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Summary

This guide covered container orchestration for Arch Linux, CachyOS, and other distributions, including Kubernetes, Docker Swarm, and container management.

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Next Steps

• Virtualization - Virtualization
• Development Environment - Development
• ArchWiki Kubernetes: https://wiki.archlinux.org/title/Kubernetes

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.