shell.nix

   1 let
   2   nixpkgs_channel = builtins.getEnv "nixpkgs_channel";
   3   # Bootstraping Nixpkgs to get tools to patch it.
   4   originNixpkgs = import (.config/nixpkgs-channel + ("/${nixpkgs_channel}.nix"));
   5   originPkgs = import originNixpkgs {
   6     config = {}; # Make the config pure, ignoring user's config.
   7     overlays = [];
   8   };
   9   remoteNixpkgsPatches = [
  10     { meta.description = "dstat: fix pluginpath";
  11       url = "https://github.com/NixOS/nixpkgs/pull/80151.diff";
  12       sha256 = "0jjw2gvp7b7v2n2m2d6yj0gw711j6p9lyjf5ywp2y9ql6905qf4b";
  13     }
  14     { meta.description = "syncoid: fix PATH to let it use sudo";
  15       url = "https://github.com/NixOS/nixpkgs/pull/83901.diff";
  16       sha256 = "0q2dicmvl3h3hb9xdd870n5hf6lac489p000c7f1r6k70sh2id4l";
  17     }
  18     { meta.description = "sanoid: fix sanoid.conf generation";
  19       url = "https://github.com/NixOS/nixpkgs/pull/83904.diff";
  20       sha256 = "0lj4krmmbz82zpmbacw0qj2ywsx895bq4d1psjn753ymh7jjqj8k";
  21     }
  22     { meta.description = "nixos/public-inbox: init";
  23       url = "https://github.com/NixOS/nixpkgs/pull/77450.diff";
  24       sha256 = "13ikg7chpbf6rrg5sngbdb95q3awhdgl4g8vci42xmqyf208hzzd";
  25     }
  26     /*
  27     { meta.description = "transmission: apply RFC0042 and harden the service";
  28       url = "https://github.com/NixOS/nixpkgs/pull/92106.diff";
  29       sha256 = "0h1105qy0wrirvi9fk5d00qsjvm745196vb7wgr648d56rm17vv1";
  30     }
  31     { meta.description = "apparmor: fix and improve the service";
  32       url = "https://github.com/NixOS/nixpkgs/pull/93457.diff";
  33       sha256 = "0y1kvsnm8xiplbm4w4cadmfkr452vipswkz3kwyyikknh06vj3mn";
  34     }
  35     */
  36   ];
  37   localNixpkgsPatches = [
  38     nixpkgs/patches/transmission+apparmor.diff
  39     nixpkgs/patches/installer.ssh-nixos.diff
  40     nixpkgs/patches/security.gnupg.diff
  41     nixpkgs/patches/services.croc.diff
  42   ];
  43   # Build nixpkgs with some patches.
  44   nixpkgs = originPkgs.applyPatches {
  45     name = "nixpkgs-patched";
  46     src = originNixpkgs;
  47     patches = map originPkgs.fetchpatch remoteNixpkgsPatches ++ localNixpkgsPatches;
  48     postPatch = ''
  49       patch=$(printf '%s\n' ${builtins.concatStringsSep " "
  50          (map (p: p.sha256) remoteNixpkgsPatches ++ localNixpkgsPatches)} |
  51         sort | sha256sum | cut -c -7)
  52       echo "+patch-$patch" >.version-suffix
  53     '';
  54   };
  55   # Final pkgs with custom overlays.
  56   pkgs = import nixpkgs {
  57     config = {}; # Make the config pure, ignoring user's config.
  58     overlays = import nixpkgs/overlays.nix;
  59   };
  60
  61   # Configuration of shell/modules/
  62   # to expand shellHook and buildInputs of this shell.nix
  63   shellConfig = {config, ...}: {
  64     imports = [
  65       shell/gnupg.nix
  66     ];
  67     nix = {
  68       nixConf = ''
  69         auto-optimise-store = true
  70       '';
  71     };
  72     nix-plugins = {
  73       enable = true;
  74     };
  75     gnupg = {
  76       enable = true;
  77       gnupgHome = toString ../sec/gnupg;
  78       gpgExtraConf = ''
  79         # julm@sourcephile.fr
  80         trusted-key 0xB2450D97085B7B8C
  81       '';
  82       gpgAgentExtraConf = ''
  83         #pretend-request-origin remote
  84         #extra-socket ${toString ./.}/S.gpg-agent.extra
  85         #log-file ${toString ./.}/gpg-agent.log
  86         #no-grab
  87         #debug-level expert
  88         #allow-loopback-pinentry
  89       '';
  90     };
  91     openssl = {
  92       enable = true;
  93       opensslHome = toString ../sec/openssl;
  94       certificates = import shell/x509.nix;
  95     };
  96     openssh = {
  97       enable = true;
  98       sshConf = ''
  99         Ciphers aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr
 100         Compression no
 101         #CompressionLevel 4
 102         ControlMaster auto
 103         ControlPath ${toString ../sec/ssh}/ssh-%h-%p-%r.socket
 104         HashKnownHosts no
 105         #SSAPIAuthentication no
 106         SendEnv LANG LC_*
 107         StrictHostKeyChecking yes
 108         UserKnownHostsFile ${toString ../sec/ssh/known_hosts}
 109       '';
 110     };
 111     virtualbox = {
 112       enable = false;
 113     };
 114   };
 115
 116   # Using modules enables to separate specific configurations
 117   # from reusable code in shell/modules.nix and shell/modules/
 118   # which may find its way in another git repository one day.
 119   shell = (pkgs.lib.evalModules {
 120     modules = [ shellConfig ] ++ map import (pkgs.lib.findFiles ".*\\.nix" shell/modules);
 121     args = { inherit pkgs; };
 122   }).config;
 123
 124   pwd = toString (./. + "");
 125   sourcephile-shred-tmp = pkgs.writeShellScriptBin "sourcephile-shred-tmp" ''
 126     # This is done when entering the nix-shell
 127     # because direnv already hooks trap EXIT.
 128     cd "${pwd}"
 129     test ! -e sec/tmp || {
 130     find sec/tmp -type f -exec shred -fu {} +
 131     rm -rf sec/tmp
 132     }
 133   '';
 134 in
 135 pkgs.mkShell {
 136   name = "sourcephile-nix";
 137   src = null;
 138   #preferLocalBuild = true;
 139   #allowSubstitutes = false;
 140   buildInputs = shell.nix-shell.buildInputs ++ [
 141     sourcephile-shred-tmp
 142     (pkgs.nixos []).nixos-generate-config
 143     (pkgs.nixos []).nixos-install
 144     (pkgs.nixos []).nixos-enter
 145     #pkgs.binutils
 146     pkgs.coreutils
 147     pkgs.cryptsetup
 148     pkgs.curl
 149     #pkgs.direnv
 150     pkgs.dnsutils
 151     #pkgs.dropbear
 152     pkgs.e2fsprogs
 153     pkgs.git
 154     pkgs.glibcLocales
 155     pkgs.gnumake
 156     pkgs.gnupg
 157     pkgs.htop
 158     #pkgs.inetutils
 159     pkgs.ipcalc
 160     #pkgs.iputils
 161     pkgs.less
 162     pkgs.libfaketime
 163     pkgs.ldns
 164     #pkgs.ldns.examples
 165     #pkgs.mailutils
 166     pkgs.man
 167     pkgs.mdadm
 168     pkgs.gptfdisk
 169     pkgs.ncdu
 170     pkgs.ncurses
 171     #pkgs.nixops
 172     #pkgs.openssl
 173     pkgs.pass
 174     pkgs.procps
 175     pkgs.rsync
 176     #pkgs.rxvt_unicode.terminfo
 177     #pkgs.sqlite
 178     pkgs.sqlite
 179     #pkgs.sudo
 180     pkgs.tig
 181     pkgs.time
 182     #pkgs.tmux
 183     pkgs.tree
 184     pkgs.utillinux
 185     #pkgs.vim
 186     #pkgs.virtualbox
 187     pkgs.which
 188     pkgs.xdg_utils
 189     pkgs.zfs
 190     pkgs.fio
 191     pkgs.strace
 192     pkgs.utillinux
 193     #pkgs.zfstools
 194     pkgs.linuxPackages.perf
 195     #pkgs.go2nix
 196     pkgs.wireguard
 197   ];
 198   #enableParallelBuilding = true;
 199   shellHook = ''
 200     echo >&2 "nix: running shellHook"
 201
 202     # password-store
 203     export PASSWORD_STORE_DIR="$PWD"/../sec/pass
 204
 205     # Nix
 206     PATH=$NIX_SHELL_PATH:$PATH
 207     export NIX_PATH="${pkgs.lib.concatStringsSep ":" [
 208       "machines=$PWD/machines.nix"
 209       #"pass=$PASSWORD_STORE_DIR"
 210       "nixpkgs=${toString pkgs.path}"
 211       "nixpkgs-overlays=$PWD/nixpkgs/overlays.nix"
 212     ]}"
 213
 214     # Since the .envrc calls this shellHook
 215     # the EXIT trap cannot be freely used
 216     # because it's already used by direnv,
 217     # hence shred at startup, which is not ideal.
 218     sourcephile-shred-tmp
 219
 220     ${shell.nix-shell.shellHook}
 221
 222     # gpg
 223     export GPG_TTY=$(tty)
 224     gpg-connect-agent updatestartuptty /bye >/dev/null
 225   '';
 226 }