nixcfg/nix/configuration.nix

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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running nixos-help).
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{ config, pkgs, ... } @ args:
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# Configuration local for this cluster node (hostname, IP, etc)
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{
imports =
[ # Include the results of the hardware scan.
./hardware-configuration.nix
# Include generic Deuxfleurs module
./deuxfleurs.nix
# Configuration for this deployment (a cluster)
./cluster.nix
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# Configuration local for this Deuxfleurs site (set of nodes)
./site.nix
# Configuration local for this cluster node (hostname, IP, etc)
./node.nix
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];
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nixpkgs.overlays = [
(import ./wesher.nix)
];
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# The global useDHCP flag is deprecated, therefore explicitly set to false here.
# Per-interface useDHCP will be mandatory in the future, so this generated config
# replicates the default behaviour.
networking.useDHCP = false;
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# Set your time zone.
time.timeZone = "Europe/Paris";
# Select internationalisation properties.
# i18n.defaultLocale = "en_US.UTF-8";
console = {
font = "sun12x22";
keyMap = "fr";
};
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boot.kernel.sysctl = {
"vm.max_map_count" = 262144;
};
services.journald.extraConfig = ''
SystemMaxUse=1G
'';
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# List packages installed in system profile. To search, run:
# $ nix search wget
environment.systemPackages = with pkgs; [
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nmap
bind
inetutils
pciutils
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vim
tmux
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ncdu
iotop
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jnettop
nethogs
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wget
htop
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smartmontools
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links
git
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rclone
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docker
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docker-compose
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wesher
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];
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programs.vim.defaultEditor = true;
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# Enable network time
services.ntp.enable = true;
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# Enable the OpenSSH daemon and disable password login.
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services.openssh.enable = true;
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services.openssh.passwordAuthentication = false;
# ---- CONFIG FOR DEUXFLEURS CLUSTER ----
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# Open ports in the firewall.
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networking.firewall = {
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enable = true;
# Allow anyone to connect on SSH port
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allowedTCPPorts = [
(builtins.head ({ openssh.ports = [22]; } // config.services).openssh.ports)
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];
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# Allow specific hosts access to specific things in the cluster
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extraCommands = ''
# Allow everything from router (usefull for UPnP/IGD)
iptables -A INPUT -s 192.168.1.254 -j ACCEPT
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# Allow docker containers to access all ports
iptables -A INPUT -s 172.17.0.0/16 -j ACCEPT
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# Allow other nodes on VPN to access all ports
iptables -A INPUT -s 10.42.0.0/16 -j ACCEPT
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'';
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# When stopping firewall, delete all rules that were configured manually above
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extraStopCommands = ''
iptables -D INPUT -s 192.168.1.254 -j ACCEPT
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iptables -D INPUT -s 172.17.0.0/16 -j ACCEPT
iptables -D INPUT -s 10.42.0.0/16 -j ACCEPT
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'';
};
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# This value determines the NixOS release from which the default
# settings for stateful data, like file locations and database versions
# on your system were taken. Its perfectly fine and recommended to leave
# this value at the release version of the first install of this system.
# Before changing this value read the documentation for this option
# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
system.stateVersion = "21.05"; # Did you read the comment?
}