dotfiles/modules/nixos/services/calibre.nix

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{ config, pkgs, lib, ... }:
let
libraryPath = "/data/books";
in {
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options = {
bookServer = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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description = "Hostname for Calibre library";
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default = null;
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};
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backups.calibre = lib.mkOption {
type = lib.types.bool;
description = "Whether to backup Calibre library";
default = true;
};
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};
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config = lib.mkIf (config.bookServer != null) {
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services.calibre-web = {
enable = true;
openFirewall = true;
options = {
reverseProxyAuth.enable = false;
enableBookConversion = true;
enableBookUploading = true;
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calibreLibrary = libraryPath;
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};
};
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caddy.routes = [{
match = [{ host = [ config.bookServer ]; }];
handle = [{
handler = "reverse_proxy";
upstreams = [{ dial = "localhost:8083"; }];
headers.request.add."X-Script-Name" = [ "/calibre-web" ];
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}];
}];
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# Grant user access to Calibre directories
users.users.${config.user}.extraGroups = [ "calibre-web" ];
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# Run a backup on a schedule
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systemd.timers.calibre-backup = lib.mkIf config.backups.calibre {
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timerConfig = {
OnCalendar = "*-*-* 00:00:00"; # Once per day
Unit = "calibre-backup.service";
};
wantedBy = [ "timers.target" ];
};
# Backup Calibre data to object storage
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systemd.services.calibre-backup = lib.mkIf config.backups.calibre {
description = "Backup Calibre data";
environment.AWS_ACCESS_KEY_ID = config.backup.s3.accessKeyId;
serviceConfig = {
Type = "oneshot";
User = "calibre-web";
Group = "backup";
EnvironmentFile = config.secrets.backup.dest;
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};
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script = ''
${pkgs.awscli2}/bin/aws s3 sync \
${libraryPath}/ \
s3://${config.backup.s3.bucket}/calibre/ \
--endpoint-url=https://${config.backup.s3.endpoint}
'';
};
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};
}