From cdc4c4e38bf9e0abbe6a53e459f7dc247035cb69 Mon Sep 17 00:00:00 2001
From: Romain Paquet <rpqt@rpqt.fr>
Date: Sun, 25 May 2025 23:10:16 +0200
Subject: [PATCH] remove impermanence on genepi

---
 machines/genepi/configuration.nix |  2 -
 machines/genepi/disko.nix         | 11 ------
 machines/genepi/persistence.nix   | 64 -------------------------------
 machines/genepi/taskchampion.nix  |  6 +--
 4 files changed, 1 insertion(+), 82 deletions(-)
 delete mode 100644 machines/genepi/persistence.nix

diff --git a/machines/genepi/configuration.nix b/machines/genepi/configuration.nix
index e86c027..1c684c3 100644
--- a/machines/genepi/configuration.nix
+++ b/machines/genepi/configuration.nix
@@ -5,7 +5,6 @@
 {
   imports = [
     inputs.agenix.nixosModules.default
-    inputs.impermanence.nixosModules.impermanence
     ./acme.nix
     ./boot.nix
     ./builder.nix
@@ -18,7 +17,6 @@
     ./mpd.nix
     ./network.nix
     ./nginx.nix
-    ./persistence.nix
     ./syncthing.nix
     ./taskchampion.nix
 
diff --git a/machines/genepi/disko.nix b/machines/genepi/disko.nix
index 3fd4480..0c1659c 100644
--- a/machines/genepi/disko.nix
+++ b/machines/genepi/disko.nix
@@ -52,14 +52,6 @@
                   "noatime"
                 ];
               };
-              "/persist" = {
-                mountpoint = "/persist";
-                mountOptions = [
-                  "subvol=persist"
-                  "compress=zstd"
-                  "noatime"
-                ];
-              };
               "/log" = {
                 mountpoint = "/var/log";
                 mountOptions = [
@@ -80,7 +72,4 @@
       };
     };
   };
-
-  fileSystems."/persist".neededForBoot = true;
-  fileSystems."/var/log".neededForBoot = true;
 }
diff --git a/machines/genepi/persistence.nix b/machines/genepi/persistence.nix
deleted file mode 100644
index bca3d3e..0000000
--- a/machines/genepi/persistence.nix
+++ /dev/null
@@ -1,64 +0,0 @@
-{ lib, ... }:
-{
-  environment.persistence."/persist" = {
-    enable = true;
-    directories = [
-      "/var/lib/nixos"
-      "/var/lib/acme"
-      "/var/lib/prometheus2"
-      "/var/lib/immich"
-      "/var/lib/redis-immich"
-      "/var/lib/postgresql"
-      "/var/lib/grafana"
-      "/var/lib/freshrss"
-      "/var/lib/tailscale"
-    ];
-    files = [
-      # so that systemd doesn't think each boot is the first
-      "/etc/machine-id"
-      # ssh host keys
-      "/etc/ssh/ssh_host_rsa_key"
-      "/etc/ssh/ssh_host_rsa_key.pub"
-      "/etc/ssh/ssh_host_ed25519_key"
-      "/etc/ssh/ssh_host_ed25519_key.pub"
-    ];
-    users.rpqt = {
-      directories = [ ];
-      files = [ ];
-      home = "/home/rpqt";
-    };
-  };
-
-  # Empty root and remove snapshots older than 30 days
-  # boot.initrd.postDeviceCommands = lib.mkAfter ''
-  #   mkdir /btrfs_tmp
-  #   mount /dev/disk/by-label/nixos /btrfs_tmp
-  #   if [[ -e /btrfs_tmp/root ]]; then
-  #       mkdir -p /btrfs_tmp/old_roots
-  #       timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
-  #       mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
-  #   fi
-
-  #   delete_subvolume_recursively() {
-  #       IFS=$'\n'
-  #       for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
-  #           delete_subvolume_recursively "/btrfs_tmp/$i"
-  #       done
-  #       btrfs subvolume delete "$1"
-  #   }
-
-  #   for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
-  #       delete_subvolume_recursively "$i"
-  #   done
-
-  #   btrfs subvolume create /btrfs_tmp/root
-  #   umount /btrfs_tmp
-  #   rmdir /btrfs_tmp
-  # '';
-
-  # Give agenix persistent paths so it can load secrets before the mount
-  age.identityPaths = [
-    "/persist/etc/ssh/ssh_host_ed25519_key"
-    "/persist/etc/ssh/ssh_host_rsa_key"
-  ];
-}
diff --git a/machines/genepi/taskchampion.nix b/machines/genepi/taskchampion.nix
index b06dbc5..5108dcd 100644
--- a/machines/genepi/taskchampion.nix
+++ b/machines/genepi/taskchampion.nix
@@ -1,15 +1,11 @@
-{ config, lib, ... }:
+{ config, ... }:
 let
   domain = "home.rpqt.fr";
   subdomain = "tw.${domain}";
-  hasImpermanence = config.environment.persistence."/persist".enable;
 in
 {
   services.taskchampion-sync-server.enable = true;
 
-  services.taskchampion-sync-server.dataDir =
-    (lib.optionalString hasImpermanence "/persist") + "/var/lib/taskchampion-sync-server";
-
   services.nginx.virtualHosts.${subdomain} = {
     forceSSL = true;
     useACMEHost = "${domain}";