Created
May 13, 2025 05:36
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Quickly setup new user on new Oracle VPS
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| #!/bin/bash | |
| set -e | |
| # Parse command-line argument | |
| while [[ "$#" -gt 0 ]]; do | |
| case $1 in | |
| --user) USERNAME="$2"; shift ;; | |
| *) echo "Unknown parameter passed: $1"; exit 1 ;; | |
| esac | |
| shift | |
| done | |
| # Check if username was provided | |
| if [[ -z "$USERNAME" ]]; then | |
| echo "Usage: $0 --user <username>" | |
| exit 1 | |
| fi | |
| PUBKEY_SRC="/home/ubuntu/.ssh/authorized_keys" | |
| USER_HOME="/home/$USERNAME" | |
| echo "Creating user: $USERNAME" | |
| # Create the user without a password | |
| sudo adduser --disabled-password --gecos "" "$USERNAME" | |
| # Add to sudo group | |
| sudo usermod -aG sudo "$USERNAME" | |
| # Copy SSH authorized keys | |
| sudo mkdir -p "$USER_HOME/.ssh" | |
| sudo cp "$PUBKEY_SRC" "$USER_HOME/.ssh/authorized_keys" | |
| sudo chown -R "$USERNAME:$USERNAME" "$USER_HOME/.ssh" | |
| sudo chmod 700 "$USER_HOME/.ssh" | |
| sudo chmod 600 "$USER_HOME/.ssh/authorized_keys" | |
| # Allow passwordless sudo | |
| echo "$USERNAME ALL=(ALL) NOPASSWD:ALL" | sudo tee "/etc/sudoers.d/$USERNAME" | |
| sudo chmod 440 "/etc/sudoers.d/$USERNAME" | |
| echo "User $USERNAME created and configured successfully." |
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