install docker and compose

hosts/common/optional/docker/default.nix

@@ -1,26 +1,10 @@
-{ pkgs, inputs, ... }:
-{
-
-  imports = [ inputs.arion.nixosModules.arion ];
-  environment.systemPackages = [
-    pkgs.arion
-  ];
-
-  # Arion works with Docker, but for NixOS-based containers, you need Podman
-  # since NixOS 21.05.
+{pkgs, ...}: {
   virtualisation = {
-    podman = {
-      enable = true;
-      defaultNetwork.settings.dns_enabled = true;
-    };
     docker = {
       enable = true;
-      storageDriver = "btrfs";
-      rootless = {
-        enable = true;
-        setSocketVariable = true;
     };
   };
-  };
-
+  environment.systemPackages = with pkgs; [
+    docker-compose
+  ];
 }

hosts/common/optional/docker/postgres.nix

@@ -1,5 +1,10 @@
-{ pkgs, lib, inputs, config, ... }:
-let
+{
+  pkgs,
+  lib,
+  inputs,
+  config,
+  ...
+}: let
   admin_dbPasswordFile = lib.optionalString (lib.hasAttr "sops-nix" inputs) config.sops.secrets."software/postgres/admin_db/password".path;
   initScript = pkgs.writeText "init.sh" ''
     #!/bin/bash
@@ -67,8 +72,7 @@ let
     timezone = 'Etc/UTC'
     default_text_search_config = 'pg_catalog.english'
   '';
-in
-{
+in {
   sops.secrets = {
     "software/postgres/admin_db/password" = {};
   };
@@ -121,7 +125,6 @@ in
         };
         ports = ["5432:5432"];
         volumes = [
-
           # Mount pgdata to external zfs volume
           "/mnt/postgres:/var/lib/postgresql/data"
 
@@ -140,4 +143,3 @@ in
     };
   };
 }
-

hosts/common/users/sam/default.nix

@@ -23,6 +23,7 @@ in {
       "networkmanager"
       "scanner"
       "lp"
+      "docker"
     ];
   };
 

hosts/semita/default.nix

@@ -46,6 +46,7 @@ in {
     ../common/optional/nfs-mounts/media.nix
     ../common/optional/nfs-mounts/homeshare.nix
     ../common/optional/printing.nix
+    ../common/optional/docker
   ];
 
   boot = {