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Linux Server Initial Setup

Linux Server Initial Setup

Section titled “Linux Server Initial Setup”

Installing Docker and Setting Up the System

Section titled “Installing Docker and Setting Up the System”

This guide introduces setting up a server with Docker and organizing sections to help users get started with development environments.

Sections

Section titled “Sections”

  • From Source on a Computer: Direct installation on a local system.

  • Within a Dockerfile: Create a base Dockerfile for repeatable setups.

  • Remotely with Ansible: Automate Docker setup across multiple servers.

  • Without Docker: General system preparation without Docker.

From Source on a Computer

Section titled “From Source on a Computer”

Source: Docker Official Documentation

1. Step 1: Install sudo and update the system
apt install -y sudo
sudo apt update
sudo apt upgrade -y


1. Step 2: Enable unattended-upgrades
sudo apt install -y unattended-upgrades
sudo sh -c 'echo "APT::Periodic::Update-Package-Lists \"1\"; APT::Periodic::Unattended-Upgrade \"1\";" > /etc/apt/apt.conf.d/20auto-upgrades'


1. Step 3: Install basic tools
sudo apt install -y git ca-certificates curl rsync pass p7zip-full unzip fail2ban ufw
sudo install -m 0755 -d /etc/apt/keyrings


1. Step 4: Set up Docker
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc


1. Add the Docker repository to Apt sources
echo "deb [--print-architecture) signed-by=/etc/apt/keyrings/docker.asc](arch=$(dpkg) https://download.docker.com/linux/debian \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null


1. Step 5: Install Docker
sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin


1. Step 6: Add current user to the Docker group
sudo usermod -aG docker $USER

Remotely Setting Up with Ansible

Section titled “Remotely Setting Up with Ansible”

Automate Docker setup on remote servers using this Ansible playbook:

***
- name: Install Docker on remote servers
  hosts: all
  become: yes


  tasks:
    - name: Update and upgrade the system
      apt:
        update_cache: yes
        upgrade: dist


    - name: Install essential packages
      apt:
        name:
          - sudo
          - git
          - ca-certificates
          - curl
          - rsync
          - p7zip-full
          - unzip
        state: present


    - name: Add Docker GPG key
      command: >
        curl -fsSL https://download.docker.com/linux/debian/gpg -o /usr/share/keyrings/docker.gpg


    - name: Add Docker repository
      lineinfile:
        path: /etc/apt/sources.list.d/docker.list
        line: >
          deb [ansible_architecture }} signed-by=/usr/share/keyrings/docker.gpg](arch={{)
          https://download.docker.com/linux/debian  stable


    - name: Install Docker
      apt:
        name:
          - docker-ce
          - docker-ce-cli
          - containerd.io
        state: present


    - name: Add user to Docker group
      user:
        name: ""
        groups: docker
        append: yes

Without Docker

Section titled “Without Docker”

If Docker is not needed, follow these steps for a basic system setup:

1. Step 1: Install sudo and update the system
apt install -y sudo
sudo apt update
sudo apt upgrade -y


1. Step 2: Install basic tools
sudo apt install -y git ca-certificates curl rsync pass p7zip-full unzip fail2ban ufw


1. Step 3: Enable unattended-upgrades
sudo apt install -y unattended-upgrades
sudo sh -c 'echo "APT::Periodic::Update-Package-Lists \"1\"; APT::Periodic::Unattended-Upgrade \"1\";" > /etc/apt/apt.conf.d/20auto-upgrades'


1. Step 4: Reload necessary services
systemctl reload postfix

Categories

Section titled “Categories”