infrastructure/modules/dgn-console.nix

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{
config,
lib,
pkgs,
...
}:
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let
inherit (lib) mkEnableOption mkOption mkIf;
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cfg = config.dgn-console;
in
{
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options.dgn-console = {
enable = mkEnableOption "DGNum console setup." // {
default = true;
};
pg-upgrade-from = mkOption {
type = lib.types.package;
default = config.services.postgresql.package;
};
pg-upgrade-to = mkOption {
type = lib.types.package;
default = pkgs.postgresql_15;
};
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};
config = mkIf cfg.enable {
time.timeZone = "Europe/Paris";
console = {
keyMap = "fr";
};
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environment.variables.EDITOR = "nvim";
programs = {
neovim.vimAlias = true;
rust-motd = {
enable = true;
settings = {
uptime.prefix = "Up";
filesystems.root = "/";
memory.swap_pos = "below";
last_login.root = 5;
};
};
bash.promptInit = ''
FQDN="$(hostname).$(domainname)"
# Provide a nice prompt if the terminal supports it.
if [ "$TERM" != "dumb" ] || [ -n "$INSIDE_EMACS" ]; then
PROMPT_COLOR="1;31m"
((UID)) && PROMPT_COLOR="1;32m"
if [ -n "$INSIDE_EMACS" ] || [ "$TERM" = "eterm" ] || [ "$TERM" = "eterm-color" ]; then
# Emacs term mode doesn't support xterm title escape sequence (\e]0;)
PS1="\n\[\033[$PROMPT_COLOR\][\u@$FQDN:\w]\\$\[\033[0m\] "
else
PS1="\n\[\033[$PROMPT_COLOR\][\[\e]0;\u@\H: \w\a\]\u@$FQDN:\w]\\$\[\033[0m\] "
fi
if test "$TERM" = "xterm"; then
PS1="\[\033]2;$FQDN:\u:\w\007\]$PS1"
fi
fi
'';
};
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system.activationScripts.diff = {
supportsDryActivation = true;
text = ''
${pkgs.nvd}/bin/nvd --nix-bin-dir=${pkgs.nix}/bin diff /run/current-system "$systemConfig"
'';
};
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hardware.enableRedistributableFirmware = true;
environment.systemPackages =
(with pkgs; [
neovim
wget
kitty.terminfo
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# Utilities
bcc
bottom
cpuid
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dig
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htop
iftop
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mtr
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tcpdump
])
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++ [ config.boot.kernelPackages.perf ]
++ lib.optional (config.services.postgresql.enable && cfg.pg-upgrade-from != cfg.pg-upgrade-to) (
pkgs.writeScriptBin "upgrade-pg-cluster" ''
set -eux
# XXX it's perhaps advisable to stop all services that depend on postgresql
systemctl stop postgresql
export NEWDATA="/var/lib/postgresql/${cfg.pg-upgrade-to.psqlSchema}"
export NEWBIN="${cfg.pg-upgrade-to}/bin"
export OLDDATA="${config.services.postgresql.dataDir}"
export OLDBIN="${cfg.pg-upgrade-from}/bin"
install -d -m 0700 -o postgres -g postgres "$NEWDATA"
cd "$NEWDATA"
sudo -u postgres $NEWBIN/initdb -D "$NEWDATA"
sudo -u postgres $NEWBIN/pg_upgrade \
--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
--old-bindir $OLDBIN --new-bindir $NEWBIN \
"$@"
''
);
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};
}