From 32b23666d15861f6f4d8b1f522ee53d4f21fabb6 Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@lassul.us>
Date: Tue, 29 Nov 2022 13:47:36 +0100
Subject: [PATCH] l drbd: use drbd9
---
lass/3modules/drbd.nix | 35 ++++++++++++++++++++++++++++++++---
lass/5pkgs/drbd9/default.nix | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+), 3 deletions(-)
create mode 100644 lass/5pkgs/drbd9/default.nix
diff --git a/lass/3modules/drbd.nix b/lass/3modules/drbd.nix
index 816e58f0a..dbc3db4db 100644
--- a/lass/3modules/drbd.nix
+++ b/lass/3modules/drbd.nix
@@ -64,13 +64,42 @@ in {
services.udev.packages = [ pkgs.drbd ];
boot.kernelModules = [ "drbd" ];
- environment.systemPackages = [ pkgs.drbd ];
+ environment.systemPackages = [
+ pkgs.drbd
+ (pkgs.writers.writeDashBin "drbd-change-nodeid" ''
+ # https://linbit.com/drbd-user-guide/drbd-guide-9_0-en/#s-using-truck-based-replication
+ set -efux
+ if [ "$#" -ne 2 ]; then
+ echo '$1 needs to be drbd volume name'
+ echo '$2 needs to be new node id'
+ exit 1
+ fi
+
+
+ TMPDIR=$(mktemp -d)
+ trap 'rm -rf $TMPDIR' EXIT
+
+ V=$1
+ NODE_TO=$2
+ META_DATA_LOCATION=internal
+
+ ${pkgs.drbd}/bin/drbdadm -- --force dump-md $V > "$TMPDIR"/md_orig.txt
+ NODE_FROM=$(cat "$TMPDIR"/md_orig.txt | ${pkgs.gnused}/bin/sed -n 's/^node-id \(.*\);$/\1/p')
+ ${pkgs.gnused}/bin/sed -e "s/node-id $NODE_FROM/node-id $NODE_TO/" \
+ -e "s/^peer.$NODE_FROM. /peer-NEW /" \
+ -e "s/^peer.$NODE_TO. /peer[$NODE_FROM] /" \
+ -e "s/^peer-NEW /peer[$NODE_TO] /" \
+ < "$TMPDIR"/md_orig.txt > "$TMPDIR"/md.txt
+
+ drbdmeta --force $(drbdadm sh-minor $V) v09 $(drbdadm sh-md-dev $V) $META_DATA_LOCATION restore-md "$TMPDIR"/md.txt
+ '')
+ ];
networking.firewall.allowedTCPPorts = map (device: device.port) (lib.attrValues cfg);
systemd.services = lib.mapAttrs' (_: device:
lib.nameValuePair "drbd-${device.name}" {
- after = [ "systemd-udev.settle.service" "network.target" ];
+ after = [ "systemd-udev.settle.service" "network.target" "retiolum.service" ];
wants = [ "systemd-udev.settle.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
@@ -88,7 +117,7 @@ in {
''}
if ! ${pkgs.drbd}/bin/drbdadm adjust ${device.name}; then
${pkgs.drbd}/bin/drbdadm down ${device.name}
- ${pkgs.drbd}/bin/drbdadm create-md ${device.name}
+ ${pkgs.drbd}/bin/drbdadm create-md ${device.name}/0 --max-peers 31
${pkgs.drbd}/bin/drbdadm up ${device.name}
fi
'';
diff --git a/lass/5pkgs/drbd9/default.nix b/lass/5pkgs/drbd9/default.nix
new file mode 100644
index 000000000..34ef0f564
--- /dev/null
+++ b/lass/5pkgs/drbd9/default.nix
@@ -0,0 +1,35 @@
+{ lib, stdenv, git, fetchzip, fetchFromGitHub, kernel }: let
+
+ version = "9.1.7";
+
+in stdenv.mkDerivation {
+ pname = "drbd";
+ version = "${kernel.version}-${version}";
+
+ src = fetchzip {
+ url = "https://pkg.linbit.com//downloads/drbd/9/drbd-9.1.7.tar.gz";
+ sha256 = "sha256-JsbtOrqhZkG7tFEc6tDmj3RlxZggl0HOKfCI8lYtQok=";
+ };
+ # src = fetchFromGitHub {
+ # owner = "LINBIT";
+ # repo = "drbd";
+ # rev = "drbd-${version}";
+ # sha256 = "sha256-8HAt+k0yi6XsZZ9mkVCQkv2pn65o3Zsa0KwTSBJh0yY=";
+ # leaveDotGit = true;
+ # };
+
+ nativeBuildInputs = [ git ] ++ kernel.moduleBuildDependencies;
+
+ # hardeningDisable = [ "pic" ];
+
+ makeFlags = kernel.makeFlags ++ [
+ "KDIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+ ];
+
+ installPhase = ''
+ install -D drbd/drbd.ko -t "$out/lib/modules/${kernel.modDirVersion}/updates/"
+ install -D drbd/drbd_transport_tcp.ko -t "$out/lib/modules/${kernel.modDirVersion}/updates/"
+ '';
+
+ enableParallelBuilding = true;
+}