From 1c6f4af4309caff538a1ee1ce707e7fdcd5947ae Mon Sep 17 00:00:00 2001
From: coolneng <akasroua@gmail.com>
Date: Mon, 27 Feb 2023 21:55:12 +0100
Subject: [PATCH] Use overlay instead of ZFS for containers

---
 modules/hardware-configuration.nix | 87 +++++++-----------------------
 modules/information.nix            |  8 +--
 2 files changed, 21 insertions(+), 74 deletions(-)

diff --git a/modules/hardware-configuration.nix b/modules/hardware-configuration.nix
index bffa73a..23c9af3 100644
--- a/modules/hardware-configuration.nix
+++ b/modules/hardware-configuration.nix
@@ -23,49 +23,24 @@
       fsType = "vfat";
     };
 
-  fileSystems."/var/lib/containers" =
-    { device = "vault/containers";
-      fsType = "zfs";
-    };
-
-  fileSystems."/var/lib/gitea" =
-    { device = "vault/state_directories/gitea";
-      fsType = "zfs";
-    };
-
-  fileSystems."/var/lib/signald" =
-    { device = "vault/state_directories/signald";
-      fsType = "zfs";
-    };
-
   fileSystems."/var/lib/matrix-as-facebook" =
     { device = "vault/state_directories/matrix-as-facebook";
       fsType = "zfs";
     };
 
-  fileSystems."/var/lib/wallabag" =
-    { device = "vault/state_directories/wallabag";
-      fsType = "zfs";
-    };
-
   fileSystems."/var/lib/matrix-as-signal" =
     { device = "vault/state_directories/matrix-as-signal";
       fsType = "zfs";
     };
 
-  fileSystems."/vault" =
-    { device = "vault";
+  fileSystems."/var/lib/signald" =
+    { device = "vault/state_directories/signald";
       fsType = "zfs";
     };
 
-  fileSystems."/var/lib/containers/storage/zfs-containers/151ec7c12d73e7e161d8df82605f911820f25e6186d655a18c54b481c4be723f/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/var/lib/containers/storage/zfs-containers/18aaf1ac7583433d84488ea6594032549dc37d959751c096780f03cfa8a31ae7/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
+  fileSystems."/var/lib/gitea" =
+    { device = "vault/state_directories/gitea";
+      fsType = "zfs";
     };
 
   fileSystems."/var/lib/matrix-as-telegram" =
@@ -73,28 +48,13 @@
       fsType = "zfs";
     };
 
-  fileSystems."/var/lib/containers/storage/zfs-containers/1996d0540bceeb3dea027b3e5ef9e6cd94ea527ce657bf6461286d7b4afa637f/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
+  fileSystems."/vault" =
+    { device = "vault";
+      fsType = "zfs";
     };
 
-  fileSystems."/var/lib/containers/storage/zfs-containers/1dece57fa7124ac19a7f9b1b97b32d1ea137775ec33a35375741f3e74be3e85e/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/var/lib/containers/storage/zfs-containers/737d2ce2ce884a2dffe6640ad1e0ea8fe2cf0a200f13a9490bb7f89bb19940cb/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/var/lib/containers/storage/zfs-containers/522343abee32edddd051c93a47bc7d2208e0bbcef724e4c4319cbbc49f5d361d/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/vault/backups" =
-    { device = "vault/backups";
+  fileSystems."/var/lib/wallabag" =
+    { device = "vault/state_directories/wallabag";
       fsType = "zfs";
     };
 
@@ -103,11 +63,21 @@
       fsType = "zfs";
     };
 
+  fileSystems."/vault/backups" =
+    { device = "vault/backups";
+      fsType = "zfs";
+    };
+
   fileSystems."/vault/radicale" =
     { device = "vault/radicale";
       fsType = "zfs";
     };
 
+  fileSystems."/vault/backups/zion" =
+    { device = "vault/backups/zion";
+      fsType = "zfs";
+    };
+
   fileSystems."/vault/syncthing" =
     { device = "vault/syncthing";
       fsType = "zfs";
@@ -118,21 +88,6 @@
       fsType = "zfs";
     };
 
-  fileSystems."/vault/backups/zion" =
-    { device = "vault/backups/zion";
-      fsType = "zfs";
-    };
-
-  fileSystems."/var/lib/containers/storage/zfs-containers/bdf459f14fb37fc18ea348e6344edf3107b797a8fc3e281d44778550a4a058d2/userdata/shm" =
-    { device = "shm";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/var/lib/containers/storage/zfs/graph/46fdb9b91b2e60fc56d521f03e2d7b5ee901670d481ced7553d3208d16f654b5" =
-    { device = "vault/containers/46fdb9b91b2e60fc56d521f03e2d7b5ee901670d481ced7553d3208d16f654b5";
-      fsType = "zfs";
-    };
-
   swapDevices = [ ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
@@ -140,9 +95,7 @@
   # still possible to use this option, but it's recommended to use it in conjunction
   # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
   networking.useDHCP = lib.mkDefault true;
-  # networking.interfaces.cni-podman0.useDHCP = lib.mkDefault true;
   # networking.interfaces.eth0.useDHCP = lib.mkDefault true;
-  # networking.interfaces.vethbb9fbdc4.useDHCP = lib.mkDefault true;
   # networking.interfaces.wg0.useDHCP = lib.mkDefault true;
   # networking.interfaces.wlan0.useDHCP = lib.mkDefault true;
 
diff --git a/modules/information.nix b/modules/information.nix
index 1596922..32f19c5 100644
--- a/modules/information.nix
+++ b/modules/information.nix
@@ -31,15 +31,9 @@
   # Set environment variable pointing to wallabag configuration directory
   environment.variables.WALLABAG_DATA = "/var/lib/wallabag";
 
-  # Podman setup with ZFS
+  # Podman setup
   virtualisation = {
     containers.enable = true;
-    containers.storage.settings.storage = {
-      driver = "zfs";
-      graphroot = "/var/lib/containers/storage";
-      runroot = "/run/containers/storage";
-    };
-
     podman = {
       enable = true;
       dockerCompat = true;