From 32bac4e0549b6b41aa6062aee48f1aa7eb493a3f Mon Sep 17 00:00:00 2001
From: lassulus <git@lassul.us>
Date: Sun, 3 Sep 2023 11:57:19 +0200
Subject: l green-hosts: add different implementations

---
 lass/2configs/green-hosts/securefs.nix | 101 +++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 lass/2configs/green-hosts/securefs.nix

(limited to 'lass/2configs/green-hosts/securefs.nix')

diff --git a/lass/2configs/green-hosts/securefs.nix b/lass/2configs/green-hosts/securefs.nix
new file mode 100644
index 000000000..a69cfe6ca
--- /dev/null
+++ b/lass/2configs/green-hosts/securefs.nix
@@ -0,0 +1,101 @@
+# broken, muchsync cant sync into the folders which should be handles by bindfs
+# ls -la also does not show the full directory permissions
+{ config, lib, pkgs, ... }:
+with import <stockholm/lib>;
+
+let
+
+  cname = "green";
+
+in {
+  imports = [
+    <stockholm/lass/2configs/container-networking.nix>
+    <stockholm/lass/2configs/syncthing.nix>
+  ];
+
+  programs.fuse.userAllowOther = true;
+
+  services.syncthing.declarative.folders."/var/lib/sync-containers/${cname}/securefs" = {
+    devices = [ "icarus" "skynet" "littleT" "shodan" "mors" "morpheus" ];
+    ignorePerms = false;
+  };
+
+  krebs.permown."/var/lib/sync-containers/${cname}/securefs" = {
+    file-mode = "u+rw";
+    directory-mode = "u+rwx";
+    owner = "syncthing";
+    keepGoing = false;
+  };
+
+  systemd.services."container@${cname}".reloadIfChanged = mkForce false;
+  containers.${cname} = {
+    config = { ... }: {
+      environment.systemPackages = [
+        pkgs.git
+        pkgs.rxvt-unicode-unwrapped.terminfo
+      ];
+      services.openssh.enable = true;
+      users.users.root.openssh.authorizedKeys.keys = [
+        config.krebs.users.lass.pubkey
+      ];
+      system.activationScripts.fuse = {
+        text = ''
+          ${pkgs.coreutils}/bin/mknod /dev/fuse c 10 229
+        '';
+        deps = [];
+      };
+    };
+    allowedDevices = [
+      { modifier = "rwm"; node = "/dev/fuse"; }
+    ];
+    autoStart = false;
+    enableTun = true;
+    privateNetwork = true;
+    hostAddress = "10.233.2.15"; # TODO find way to automatically calculate IPs
+    localAddress = "10.233.2.16"; # TODO find way to automatically calculate IPs
+  };
+
+  environment.systemPackages = [
+    (pkgs.writeDashBin "start-${cname}" ''
+      set -euf
+      set -x
+
+      mkdir -p /var/lib/containers/${cname}/var/state
+
+      if ! mount | grep -q 'securefs on /var/lib/containers/${cname}/var/state type fuse.securefs'; then
+        if ! ${pkgs.securefs}/bin/securefs info /var/lib/sync-containers/${cname}/securefs; then
+          ${pkgs.securefs}/bin/securefs create --format 4 /var/lib/sync-containers/${cname}/securefs
+        fi
+
+        ${pkgs.securefs}/bin/securefs mount -b \
+          -o allow_other -o default_permissions \
+          --log /var/lib/sync-containers/${cname}/securefs.log \
+          /var/lib/sync-containers/${cname}/securefs /var/lib/containers/${cname}/var/state
+      fi
+
+      STATE=$(${pkgs.nixos-container}/bin/nixos-container status ${cname})
+      if [ "$STATE" = 'down' ]; then
+        ${pkgs.nixos-container}/bin/nixos-container start ${cname}
+      fi
+
+      ${pkgs.nixos-container}/bin/nixos-container run ${cname} -- ${pkgs.writeDash "deploy-${cname}" ''
+        set -x
+
+        mkdir -p /var/state/var_src
+        ln -sfTr /var/state/var_src /var/src
+        touch /etc/NIXOS
+      ''}
+
+      if [ -h /var/lib/containers/${cname}/var/src/nixos-config ] && (! ping -c1 -q -w5 ${cname}.r); then
+        ${pkgs.nixos-container}/bin/nixos-container run ${cname} -- nixos-rebuild -I /var/src switch
+      fi
+    '')
+    (pkgs.writeDashBin "stop-${cname}" ''
+      set -euf
+
+      ${pkgs.nixos-container}/bin/nixos-container stop ${cname}
+      umount /var/lib/containers/${cname}/var/state
+    '')
+  ];
+}
+
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