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Docker

This page would define installation, uninstallation and user setup for Docker

Info

Run these using your standard user with sudo if required

Docker⚓︎

Installation and Uninstallation⚓︎

Warning

Best way would be to follow Official Docker Guide

Docker Engine and Compose Plugin⚓︎

  • Install docker engine and compose

    Bash
    1
    paru -S docker docker-compose --noconfirm

  • Add User to Docker group

    Bash
    1
    sudo usermod -aG docker $USER

  • Enable and Run docker service

    Bash
    1
    sudo systemctl enable --now docker.service

Warning

Log out and log back in to make sure everything works fine

Uninstallation⚓︎

Bash
1
paru -Rns docker docker-compose --noconfirm

  • Install pre-requisite packages

    Bash
    1
2
3
4
5
6
    sudo apt-get update &&\
sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

  • GPG Key

    Bash
    1
2
    sudo mkdir -p /etc/apt/keyrings &&\
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

  • Add Repo URL to apt sources

    Bash
    1
2
3
    echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

  • Finally, Install docker engine

    Bash
    1
2
    sudo apt-get update &&\
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin -y

  • Add User to Docker group

    Bash
    1
    sudo usermod -aG docker $USER

  • Enable and Run docker service

    Bash
    1
    sudo systemctl enable --now docker.service

Warning

Log out and log back in to make sure everything works fine

Uninstallation⚓︎

Bash
1
sudo apt-get remove docker docker-engine docker.io containerd runc

  • Install pre-requisite packages

    Bash
    1
2
3
4
5
6
    sudo apt-get update &&\
sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

  • GPG Key

    Bash
    1
2
    sudo mkdir -p /etc/apt/keyrings &&\
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

  • Add Repo URL to apt sources

    Bash
    1
2
3
    echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

  • Finally, Install docker engine

    Bash
    1
2
    sudo apt-get update &&\
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin -y

  • Add User to Docker group

    Bash
    1
    sudo usermod -aG docker $USER

  • Enable and Run docker service

    Bash
    1
    sudo systemctl enable --now docker.service

Warning

Log out and log back in to make sure everything works fine

Uninstallation⚓︎

Bash
1
sudo apt-get remove docker docker-engine docker.io containerd runc

Environment variables⚓︎

Warning

Official way of doing environment variables in docker-compose is via .env file
This way makes it easier for me to backup env vars with compose files without exposing secrets

  • Create .zshenv file in your home directory and create environment variables with following format

    vim ~/.zshenv
    1
2
    export "CFG_DIR"="/home/user/.config"
export "varName"="varValue"

  • Restart shell or source file

    Bash
    1
    source ~/.zshenv

  • Test variables with echo

    Bash
    1
    echo $CFG_DIR

Docker Network⚓︎

  • Create custom docker network for all containers and Databases
    Bash
    1
    docker network create proxy dbs