nixos-config/2configs/minimal.nix

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{ lib, pkgs, config, ... }:
# minimal subset of sane configuration for stockholm
{
# nobody needs this
programs.command-not-found.enable = false;
# the only true timezone (even after the the removal of DST)
time.timeZone = "Europe/Berlin";
networking.hostName = config.krebs.build.host.name;
nix.buildCores = config.krebs.build.host.cores;
# we use gpg if necessary (or nothing at all)
programs.ssh.startAgent = false;
# all boxes look the same
nix.useSandbox = true;
# we configure users via nix
users.mutableUsers = false;
# sane firewalling
networking.firewall.rejectPackets = true;
networking.firewall.allowPing = true;
# openssh all the way down
services.openssh.enable = true;
# we use stockholm via populate
nix.nixPath = [ "/var/src" ];
environment.variables = let
ca-bundle = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
in {
NIX_PATH = lib.mkForce "/var/src";
EDITOR = lib.mkForce "vim";
CURL_CA_BUNDLE = ca-bundle;
GIT_SSL_CAINFO = ca-bundle;
SSL_CERT_FILE = ca-bundle;
};
programs.bash = {
interactiveShellInit = ''
HISTCONTROL='erasedups:ignorespace'
HISTSIZE=900001
HISTFILESIZE=$HISTSIZE
shopt -s checkhash
shopt -s histappend histreedit histverify
shopt -s no_empty_cmd_completion
'';
promptInit = ''
case $UID in
0) PS1='\[\e[1;31m\]\w\[\e[0m\] ' ;;
9001) PS1='\[\e[1;32m\]\w\[\e[0m\] ' ;;
*) PS1='\[\e[1;35m\]\u \[\e[1;32m\]\w\[\e[0m\] ' ;;
esac
if test -n "$SSH_CLIENT"; then
PS1='\[\033[35m\]\h'" $PS1"
fi
'';
};
# trust the cool guys
networking.timeServers = [
"pool.ntp.org"
"time.nist.gov"
];
# the only locale you will ever need
i18n = {
consoleKeyMap = "us";
defaultLocale = "en_US.UTF-8";
};
# suppress chrome autit event messages
security.audit = {
rules = [
"-a task,never"
];
};
# Enable IPv6 Privacy Extensions
boot.kernel.sysctl = {
"net.ipv6.conf.all.use_tempaddr" = 2;
"net.ipv6.conf.default.use_tempaddr" = 2;
};
}