diff --git a/common/configuration.nix b/common/configuration.nix index 1f42b03..420614e 100644 --- a/common/configuration.nix +++ b/common/configuration.nix @@ -1,6 +1,10 @@ { config, lib, pkgs, ... }: { + imports = [ + ./secrets-permissions.nix + ]; + # Enable the OpenSSH daemon services.openssh.enable = true; services.openssh.settings.PermitRootLogin = lib.mkDefault "no"; @@ -21,13 +25,12 @@ wget htop tmux - bmon # Shows network activity + bmon nixfmt - jnettop - iperf3 ncdu git tig + restic ]; # required when using kitty diff --git a/common/secrets-permissions.nix b/common/secrets-permissions.nix new file mode 100644 index 0000000..4534e2b --- /dev/null +++ b/common/secrets-permissions.nix @@ -0,0 +1,22 @@ +# This module enforces permissions on secrets stored on the machines. + +{ config, ... }: + +{ + system.activationScripts."secrets-permissions" = '' + # Default to restrictive permissions on secrets. + # Root can alway read/write/traverse directories no matter the permissions + # set. + + chown --recursive root:root /etc/secrets + chmod --recursive 600 /etc/secrets + + # Relax permissions on some secrets. + + # The top directory must be readable and traversable by thoses who need to + # access secrets. + chmod 755 /etc/secrets + + # ... add chowns & chmods to specific users/groups when needed + ''; +} \ No newline at end of file diff --git a/pastila/backups.nix b/pastila/backups.nix new file mode 100644 index 0000000..119cf96 --- /dev/null +++ b/pastila/backups.nix @@ -0,0 +1,37 @@ +{ config, lib, pkgs, ... }: + +{ + services.restic.backups."borgbase" = { + paths = [ + "/home" + "/root" + "/etc/secrets" + "/var" + "/srv" + ]; + + exclude = [ + "/var/cache" + "/home/*/.cache" + "/var/log" + ".opam" + ]; + + timerConfig = { + OnCalendar = "daily"; + RandomizedDelaySec = "5h"; + Persistent = true; + }; + + pruneOpts = [ + "--keep-daily 7" + "--keep-weekly 5" + "--keep-monthly 6" + "--keep-yearly 3" + ]; + + repositoryFile = /etc/secrets/restic/repo; + passwordFile = "/etc/secrets/restic/password"; + }; + +} \ No newline at end of file diff --git a/pastila/configuration.nix b/pastila/configuration.nix index 6920763..e1d4cd3 100644 --- a/pastila/configuration.nix +++ b/pastila/configuration.nix @@ -11,6 +11,7 @@ in imports = [ ./hardware-configuration.nix + ./backups.nix ../common/configuration.nix ];