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fixes backrest

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Dennis 2026-02-20 11:25:04 +01:00
parent f158e2c5c6
commit ba4d09e0ec
1 changed files with 12 additions and 8 deletions
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20
modules/backrest/default.nix
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@ -74,13 +74,17 @@ in
description = "Backrest service user";
};
# Write the declarative config at activation time.
# The file is owned by root (readable by backrest via group or world-read)
# but we set it 640 and add backrest to read it via the service's User=.
environment.etc."backrest/config.json" = {
text = backrestConfig;
mode = "0440";
group = "backrest";
# Write the declarative config into the backrest state dir at activation time.
# The file must be in a writable location because backrest creates a .bak
# alongside it when migrating. /var/lib/backrest is owned by the backrest user.
system.activationScripts.backrestConfig = {
deps = [ "users" ];
text = ''
install -d -m 750 -o backrest -g backrest /var/lib/backrest
install -m 640 -o backrest -g backrest \
${pkgs.writeText "backrest-config.json" backrestConfig} \
/var/lib/backrest/config.json
'';
};
systemd.services.backrest = {
@ -92,7 +96,7 @@ in
environment = {
BACKREST_PORT = "9004";
BACKREST_RESTIC_COMMAND = "${pkgs.restic}/bin/restic";
BACKREST_CONFIG = "/etc/backrest/config.json";
BACKREST_CONFIG = "/var/lib/backrest/config.json";
BACKREST_DATA = "/var/lib/backrest/data";
};