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-rw-r--r--krebs/3modules/sync-containers.nix140
1 files changed, 104 insertions, 36 deletions
diff --git a/krebs/3modules/sync-containers.nix b/krebs/3modules/sync-containers.nix
index e2caa0834..60ca993e6 100644
--- a/krebs/3modules/sync-containers.nix
+++ b/krebs/3modules/sync-containers.nix
@@ -5,27 +5,55 @@ with import <stockholm/lib>;
plain = "/var/lib/containers/${cname}/var/state";
ecryptfs = "${cfg.dataLocation}/${cname}/ecryptfs";
securefs = "${cfg.dataLocation}/${cname}/securefs";
+ luksfile = "${cfg.dataLocation}/${cname}/luksfile";
+ };
+ init = cname: {
+ plain = ''
+ echo 'no need for init'
+ '';
+ ecryptfs = ''
+ ${pkgs.ecrypt}/bin/ecrypt init ${cfg.dataLocation}/${cname}/ecryptfs /var/lib/containers/${cname}/var/state
+ '';
+ securefs = ''
+ ${pkgs.securefs}/bin/securefs create --format 3 ${cfg.dataLocation}/${cname}/securefs
+ '';
+ luksfile = ''
+ ${pkgs.coreutils}/bin/truncate -s 10G '${(paths cname).luksfile}/fs.luks'
+ ${pkgs.cryptsetup}/bin/cryptsetup luksFormat '${(paths cname).luksfile}/fs.luks'
+ ${pkgs.cryptsetup}/bin/cryptsetup luksOpen '${(paths cname).luksfile}/fs.luks' 'luksfile-${cname}'
+ ${pkgs.xfsprogs}/bin/mkfs.xfs '/dev/mapper/luksfile-${cname}'
+ '';
};
start = cname: {
plain = ''
:
'';
ecryptfs = ''
- if ! mount | grep -q '${cfg.dataLocation}/${cname}/ecryptfs on /var/lib/containers/${cname}/var/state type ecryptfs'; then
- if [ -e ${cfg.dataLocation}/${cname}/ecryptfs/.cfg.json ]; then
+
+ if [ -e ${cfg.dataLocation}/${cname}/ecryptfs/.cfg.json ]; then
+ if ! mount | grep -q '${cfg.dataLocation}/${cname}/ecryptfs on /var/lib/containers/${cname}/var/state type ecryptfs'; then
${pkgs.ecrypt}/bin/ecrypt mount ${cfg.dataLocation}/${cname}/ecryptfs /var/lib/containers/${cname}/var/state
- else
- ${pkgs.ecrypt}/bin/ecrypt init ${cfg.dataLocation}/${cname}/ecryptfs /var/lib/containers/${cname}/var/state
fi
+ else
+ echo 'please run init-${cname} first'
+ exit 1
fi
'';
securefs = ''
- ## TODO init file systems if it does not exist
- # ${pkgs.securefs}/bin/securefs create --format 3 ${cfg.dataLocation}/${cname}/securefs
+ ## check if FS was initialized first
if ! ${pkgs.mount}/bin/mount | grep -q '^securefs on /var/lib/containers/${cname}/var/state type fuse.securefs'; then
${pkgs.securefs}/bin/securefs mount ${cfg.dataLocation}/${cname}/securefs /var/lib/containers/${cname}/var/state -b -o allow_other -o default_permissions
fi
'';
+ luksfile = ''
+ mkdir -p /var/lib/containers/${cname}/var/state
+ if ! test -e /dev/mapper/luksfile-${cname}; then
+ ${pkgs.cryptsetup}/bin/cryptsetup luksOpen '${(paths cname).luksfile}/fs.luks' 'luksfile-${cname}'
+ fi
+ if ! ${pkgs.mount}/bin/mount | grep -q '^/dev/mapper/luksfile-${cname} on /var/lib/containers/${cname}/var/state'; then
+ mount '/dev/mapper/luksfile-${cname}' '/var/lib/containers/${cname}/var/state'
+ fi
+ '';
};
stop = cname: {
plain = ''
@@ -37,12 +65,16 @@ with import <stockholm/lib>;
securefs = ''
umount /var/lib/containers/${cname}/var/state
'';
+ luksfile = ''
+ umount /var/lib/containers/${cname}/var/state
+ ${pkgs.cryptsetup}/bin/cryptsetup luksClose luksfile-${cname}
+ '';
};
in {
options.krebs.sync-containers = {
dataLocation = mkOption {
description = ''
- location where the encrypted sync-container lie around
+ location where the encrypted sync-containers lie around
'';
default = "/var/lib/sync-containers";
type = types.absolute-pathname;
@@ -64,25 +96,11 @@ in {
default = [];
type = types.listOf types.str;
};
- hostIp = mkOption { # TODO find this automatically
- description = ''
- hostAddress of the privateNetwork
- '';
- example = "10.233.2.15";
- type = types.str;
- };
- localIp = mkOption { # TODO find this automatically
- description = ''
- localAddress of the privateNetwork
- '';
- example = "10.233.2.16";
- type = types.str;
- };
format = mkOption {
description = ''
file system encrption format of the container
'';
- type = types.enum [ "plain" "ecryptfs" "securefs" ];
+ type = types.enum [ "plain" "ecryptfs" "securefs" "luksfile" ];
};
};
}));
@@ -102,12 +120,11 @@ in {
ignorePerms = false;
})) cfg.containers);
- krebs.permown = (mapAttrs' (_: ctr: nameValuePair "${(paths ctr.name).${ctr.format}}" ({
- file-mode = "u+rw";
- directory-mode = "u+rwx";
- owner = "syncthing";
- keepGoing = false;
- })) cfg.containers);
+ krebs.acl = mapAttrs' (_: ctr: nameValuePair "${(paths ctr.name).${ctr.format}}" {
+ "u:syncthing:rX".parents = true;
+ "u:syncthing:rwX" = {};
+ }) cfg.containers;
+
systemd.services = mapAttrs' (n: ctr: nameValuePair "containers@${ctr.name}" ({
reloadIfChanged = mkForce false;
@@ -116,8 +133,11 @@ in {
containers = mapAttrs' (n: ctr: nameValuePair ctr.name ({
config = { ... }: {
environment.systemPackages = [
+ pkgs.dhcpcd
pkgs.git
+ pkgs.jq
];
+ networking.useDHCP = mkForce true;
system.activationScripts.fuse = {
text = ''
${pkgs.coreutils}/bin/mknod /dev/fuse c 10 229
@@ -131,11 +151,57 @@ in {
autoStart = false;
enableTun = true;
privateNetwork = true;
- hostAddress = ctr.hostIp;
- localAddress = ctr.localIp;
+ hostBridge = "ctr0";
})) cfg.containers;
- environment.systemPackages = flatten (mapAttrsToList (n: ctr: [
+ networking.networkmanager.unmanaged = [ "ctr0" ];
+ networking.bridges.ctr0.interfaces = [];
+ networking.interfaces.ctr0.ipv4.addresses = [{
+ address = "10.233.0.1";
+ prefixLength = 24;
+ }];
+ # networking.nat = {
+ # enable = true;
+ # externalInterface = lib.mkDefault "et0";
+ # internalInterfaces = [ "ctr0" ];
+ # };
+ services.dhcpd4 = {
+ enable = true;
+ interfaces = [ "ctr0" ];
+ extraConfig = ''
+ option subnet-mask 255.255.255.0;
+ option routers 10.233.0.1;
+ # option domain-name-servers 8.8.8.8; # TODO configure dns server
+ subnet 10.233.0.0 netmask 255.255.255.0 {
+ range 10.233.0.10 10.233.0.250;
+ }
+ '';
+ };
+
+ users.users.root.packages = flatten (mapAttrsToList (n: ctr: [
+ (pkgs.writeDashBin "init-${ctr.name}" ''
+ set -euf
+ set -x
+
+ mkdir -p /var/lib/containers/${ctr.name}/var/state
+ STATE=$(/run/current-system/sw/bin/nixos-container status ${ctr.name})
+ if [ "$STATE" = 'up' ]; then
+ /run/current-system/sw/bin/nixos-container stop ${ctr.name}
+ fi
+ ${(init ctr.name).${ctr.format}}
+ ${(start ctr.name).${ctr.format}}
+ /run/current-system/sw/bin/nixos-container start ${ctr.name}
+ /run/current-system/sw/bin/nixos-container run ${ctr.name} -- ${pkgs.writeDash "deploy-${ctr.name}" ''
+ set -x
+
+ mkdir -p /var/state/var_src
+ ln -sfTr /var/state/var_src /var/src
+ touch /etc/NIXOS
+ ''}
+ target_ip=$(/run/current-system/sw/bin/nixos-container run ${ctr.name} -- ip -j a s eth0 | jq -r '.[].addr_info[] | select(.family=="inet") | .local')
+
+ echo "deploy to $target_ip"
+ '')
(pkgs.writeDashBin "start-${ctr.name}" ''
set -euf
set -x
@@ -144,12 +210,12 @@ in {
${(start ctr.name).${ctr.format}}
- STATE=$(${pkgs.nixos-container}/bin/nixos-container status ${ctr.name})
+ STATE=$(/run/current-system/sw/bin/nixos-container status ${ctr.name})
if [ "$STATE" = 'down' ]; then
- ${pkgs.nixos-container}/bin/nixos-container start ${ctr.name}
+ /run/current-system/sw/bin/nixos-container start ${ctr.name}
fi
- ${pkgs.nixos-container}/bin/nixos-container run ${ctr.name} -- ${pkgs.writeDash "deploy-${ctr.name}" ''
+ /run/current-system/sw/bin/nixos-container run ${ctr.name} -- ${pkgs.writeDash "deploy-${ctr.name}" ''
set -x
mkdir -p /var/state/var_src
@@ -158,15 +224,17 @@ in {
''}
if [ -h /var/lib/containers/${ctr.name}/var/src/nixos-config ] && (! ping -c1 -q -w5 ${ctr.name}.r); then
- ${pkgs.nixos-container}/bin/nixos-container run ${ctr.name} -- nixos-rebuild -I /var/src switch
+ /run/current-system/sw/bin/nixos-container run ${ctr.name} -- nixos-rebuild -I /var/src switch
else
+ echo 'no nixos config, or target already online, bailing out'
${(stop ctr.name).${ctr.format}}
+ /run/current-system/sw/bin/nixos-container stop ${ctr.name}
fi
'')
(pkgs.writeDashBin "stop-${ctr.name}" ''
set -euf
- ${pkgs.nixos-container}/bin/nixos-container stop ${ctr.name}
+ /run/current-system/sw/bin/nixos-container stop ${ctr.name}
${(stop ctr.name).${ctr.format}}
'')
]) cfg.containers);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 22:02:23 +0000