alex-d dotfiles

Generate an RSA SSH key for Git authentication and add it to the ssh-agent.

#!/bin/bash

email="contact@alex-d.fr"

# Generate a new SSH key
ssh-keygen -t rsa -b 4096 -C "${email}"

# Start ssh-agent and add the key to it
eval $(ssh-agent -s)
ssh-add ~/.ssh/id_rsa

# Display the public key ready to be copy pasted to GitHub
cat ~/.ssh/id_rsa.pub

Manually download and install Git completion scripts for zsh into the ~/.zsh directory.

# Git autocompletion
mkdir -p ~/.zsh
cd ~/.zsh
curl -o git-completion.bash https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash
curl -o _git https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.zsh

Clones git-filter-repo and installs it into the Git execution path along with its documentation.

# Setup git-filter-repo
git clone git@github.com:newren/git-filter-repo.git /tmp/git-filter-repo
cd /tmp/git-filter-repo
make snag_docs
sudo cp -a git-filter-repo $(git --exec-path)
sudo cp -a Documentation/man1/git-filter-repo.1 $(git --man-path)/man1
sudo cp -a Documentation/html/git-filter-repo.html $(git --html-path)
cd -
rm -rf /tmp/git-filter-repo

To use this setup, you must first install the Git for Windows SDK.

1. Download the latest release from the Git for Windows SDK releases.
2. Run the executable installer (note: installation may take over 10 minutes).

Use Homebrew to install the required system dependencies: gnupg, tig, and tree.

# Install brew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

# Install dependencies
brew install \
	gnupg \
	tig \
	tree

Install the MariaDB server and run the security script to configure the installation.

#!/bin/bash

sudo apt update && sudo apt install -y mariadb-server
    
sudo mysql_secure_installation

Schedule regular MySQL database backups.

1. Create the backup config directory: mkdir -p ~/.config/backup.
2. Copy the MySQL config template: cp ~/dev/dotfiles/server/config/mysql ~/.config/backup/mysql.
3. Edit ~/.config/backup/mysql with your database user and password.
4. Add a cron job to run mysql_backup.sh daily at 3:00 AM.

#!/bin/zsh

databaseName="<databaseName>"
newCron="0 3 * * * $HOME/dev/dotfiles/server/mysql_backup.sh $databaseName"
(crontab -l ; echo "$newCron") | crontab -

Installs kubectl on Debian/Ubuntu using the official Kubernetes package repository.

# Install kubectl
sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y kubectl

Install ufw and allow essential traffic (SSH, HTTP, HTTPS, and SMTP).

sudo apt update && sudo apt install -y ufw

#!/bin/zsh

sudo ufw allow ssh
sudo ufw allow http
sudo ufw allow https
sudo ufw allow smtp

Restore an existing key

1. On the old system, export the secret key: gpg --list-secret-keys gpg --export-secret-keys {{KEY_ID}} > /tmp/private.key
2. On the new system, import it: gpg --import /tmp/private.key
3. Important: Delete /tmp/private.key from both systems.

Create a new key

Run gpg --full-generate-key to start the generation process.

# Export (Old System)
gpg --export-secret-keys {{KEY_ID}} > /tmp/private.key

# Import (New System)
gpg --import /tmp/private.key

# Create New
gpg --full-generate-key

Update the system hostname and timezone settings.

Hostname Configuration: Use hostnamectl to set the name and update /etc/hosts. If the hostname does not have a global internet DNS entry, use 127.0.1.1 instead of 127.0.0.1 in /etc/hosts.

Timezone Configuration: Use timedatectl to set the system timezone.

#!/bin/bash

hostname="alexandredemode.fr"

sudo hostnamectl set-hostname "${hostname}"
echo "127.0.0.1 ${hostname}" | sudo tee -a /etc/hosts

timedatectl set-timezone Europe/Paris

After setting up WSL 2 and installing a distribution (such as Ubuntu from the Microsoft Store), use the following script to install essential development dependencies including git, zsh, make, and various system utilities.

#!/bin/bash

sudo apt update && sudo apt install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common \
    git \
    make \
    tig \
    tree \
    zip unzip \
    zsh