144 lines
3.7 KiB
Nix
144 lines
3.7 KiB
Nix
# Admin User Configuration - sma
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# Named after Diziet Sma, pragmatic Special Circumstances agent
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# Role: System administration, security oversight, maintenance
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{
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config,
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pkgs,
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...
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}: {
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users.users.sma = {
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description = "Diziet Sma - System Administrator";
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isNormalUser = true;
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uid = 1001; # Fixed UID for consistency across machines
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group = "sma"; # Primary group
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# Admin privileges
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extraGroups = [
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"wheel" # sudo access
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"networkmanager" # network management
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"libvirt" # virtualization management
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"incus-admin" # container management
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"podman" # container runtime
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"docker" # docker compatibility (if needed)
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];
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# Security-focused shell setup
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shell = pkgs.zsh;
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# SSH key-based authentication only (no password login)
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openssh.authorizedKeys.keys = [
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# Admin key for server administration
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"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPgzKS1N7+7+N1/8U8++1pl4hapDm6TOy0QhrfrYA8mz geir@geokkjer.eu-admin"
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];
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# Essential admin packages
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packages = with pkgs; [
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# System monitoring and diagnostics (htop, lsof, strace moved to base.nix)
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iotop
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nethogs
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# Network tools (nmap moved to base.nix)
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tcpdump
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wireshark-cli
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# File and disk utilities (tree, fd, ripgrep, fzf, ncdu moved to base.nix)
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# Text processing (jq, yq moved to base.nix)
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# Version control (git moved to base.nix)
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# Container management
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podman-compose
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# Backup and sync
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rsync
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rclone
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# Security tools
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age
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sops
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# NixOS specific tools
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nixos-rebuild
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nix-tree
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nix-diff
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];
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};
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# Admin-specific shell configuration
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programs.zsh = {
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enable = true;
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autosuggestions.enable = true;
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syntaxHighlighting.enable = true;
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# Admin-focused aliases
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shellAliases = {
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# System management (use current system configuration)
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"rebuild" = "sudo nixos-rebuild switch";
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"rebuild-test" = "sudo nixos-rebuild test";
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"rebuild-boot" = "sudo nixos-rebuild boot";
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"rebuild-flake" = "cd /tmp/home-lab-config && sudo nixos-rebuild switch --flake .";
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"rebuild-flake-test" = "cd /tmp/home-lab-config && sudo nixos-rebuild test --flake .";
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"rebuild-flake-boot" = "cd /tmp/home-lab-config && sudo nixos-rebuild boot --flake .";
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# Container management
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"pods" = "podman ps -a";
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"images" = "podman images";
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"logs" = "podman logs";
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# System monitoring
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"disk-usage" = "df -h";
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"mem-usage" = "free -h";
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"processes" = "ps aux | head -20";
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# Network
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"ports" = "ss -tulpn";
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"connections" = "ss -tuln";
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# Security
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"audit-users" = "cat /etc/passwd | grep -E '/bin/(bash|zsh|fish)'";
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"audit-sudo" = "cat /etc/sudoers.d/*";
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};
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interactiveShellInit = ''
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# Emacs-style keybindings
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bindkey -e
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# Disable annoying shell options
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unsetopt beep nomatch
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# Completion configuration
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zstyle ':completion:*' completer _expand _complete _ignored
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zstyle ':completion:*' matcher-list ""
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autoload -Uz compinit
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compinit
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# Initialize shell enhancements
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eval "$(starship init zsh)"
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eval "$(direnv hook zsh)"
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'';
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};
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# Sudo configuration for admin user
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security.sudo.extraRules = [
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{
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users = ["sma"];
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commands = [
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{
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command = "ALL";
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options = ["NOPASSWD"]; # Allow passwordless sudo for admin tasks
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}
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];
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}
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];
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# Admin user home directory permissions
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systemd.tmpfiles.rules = [
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"d /home/sma 0755 sma sma -"
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"d /home/sma/.ssh 0700 sma sma -"
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];
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# Create the sma group
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users.groups.sma = {
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gid = 992; # Fixed GID for consistency across machines
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};
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}
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