c3d2/nix-config
c3d2/nix-config
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Use latest zfs compatible kernel

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Sandro - 2022-12-23 21:42:36 +01:00
parent ae05bdb2dd
commit 253720c398
Signed by: sandro
GPG Key ID: 3AF5A43A3EECC2E5
1 changed files with 41 additions and 36 deletions
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77
modules/microvm-host.nix
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@ -8,6 +8,8 @@
}; };
config = { config = {
boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
# just all the microvms from this flake # just all the microvms from this flake
# that are supposed to run on the server # that are supposed to run on the server
microvm.autostart = microvm.autostart =
@ -18,44 +20,47 @@
(config.c3d2.deployment.server or null) == config.networking.hostName (config.c3d2.deployment.server or null) == config.networking.hostName
) (builtins.attrNames self.nixosConfigurations); ) (builtins.attrNames self.nixosConfigurations);
systemd.services."microvm-virtiofsd@" = { systemd.services = {
requires = [ "microvm-zfs-datasets@%i.service" ]; "microvm-virtiofsd@" = {
}; requires = [ "microvm-zfs-datasets@%i.service" ];
systemd.services."microvm-zfs-datasets@" = {
description = "Create ZFS datasets for MicroVM '%i'";
before = [ "microvm-virtiofsd@%i.service" ];
after = [ "local-fs.target" ];
partOf = [ "microvm@%i.service" ];
unitConfig.ConditionPathExists = "/var/lib/microvms/%i/current/share/microvm/virtiofs";
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
WorkingDirectory = "/var/lib/microvms/%i";
SyslogIdentifier = "microvm-zfs-datasets@%i";
}; };
path = with pkgs; [ zfs ];
scriptArgs = "%i";
script = ''
zfsExists() {
zfs list $1 >/dev/null 2>/dev/null
}
NAME="$1" "microvm-zfs-datasets@" = {
BASE="${config.c3d2.deployment.microvmBaseZfsDataset}" description = "Create ZFS datasets for MicroVM '%i'";
zfsExists $BASE || \ before = [ "microvm-virtiofsd@%i.service" ];
zfs create $BASE after = [ "local-fs.target" ];
zfsExists $BASE/$NAME || \ partOf = [ "microvm@%i.service" ];
zfs create $BASE/$NAME unitConfig.ConditionPathExists = "/var/lib/microvms/%i/current/share/microvm/virtiofs";
for d in current/share/microvm/virtiofs/*; do serviceConfig = {
SOURCE=$(cat $d/source) Type = "oneshot";
TAG=$(basename $d) RemainAfterExit = true;
MNT=$SOURCE WorkingDirectory = "/var/lib/microvms/%i";
if [[ "$MNT" == /var/lib/microvms/$NAME/* ]]; then SyslogIdentifier = "microvm-zfs-datasets@%i";
zfsExists $BASE/$NAME/$TAG || \ };
zfs create -o mountpoint=$MNT $BASE/$NAME/$TAG path = with pkgs; [ zfs ];
fi scriptArgs = "%i";
done script = ''
''; zfsExists() {
zfs list $1 >/dev/null 2>/dev/null
}
NAME="$1"
BASE="${config.c3d2.deployment.microvmBaseZfsDataset}"
zfsExists $BASE || \
zfs create $BASE
zfsExists $BASE/$NAME || \
zfs create $BASE/$NAME
for d in current/share/microvm/virtiofs/*; do
SOURCE=$(cat $d/source)
TAG=$(basename $d)
MNT=$SOURCE
if [[ "$MNT" == /var/lib/microvms/$NAME/* ]]; then
zfsExists $BASE/$NAME/$TAG || \
zfs create -o mountpoint=$MNT $BASE/$NAME/$TAG
fi
done
'';
};
}; };
nix.settings = { nix.settings = {